diff --git a/build/npm/Plugins.js b/build/npm/Plugins.js index be017d54b..0390a2fb2 100644 --- a/build/npm/Plugins.js +++ b/build/npm/Plugins.js @@ -426,6 +426,11 @@ const Plugins = [ { from: 'node_modules/dropzone/dist/', to: 'plugins/dropzone' + }, + // uPlot + { + from: 'node_modules/uplot/dist/', + to: 'plugins/uplot' } ] diff --git a/index.html b/index.html index 99c517693..7271d3597 100644 --- a/index.html +++ b/index.html @@ -319,6 +319,12 @@

Inline

+
  • + + +

    uPlot

    +     +
  • diff --git a/index2.html b/index2.html index 494067e2f..bbecab82a 100644 --- a/index2.html +++ b/index2.html @@ -306,6 +306,12 @@

    Inline

    • +
  • + + +

    uPlot

    +     +
  • diff --git a/index3.html b/index3.html index 07f858b87..d4509f6e0 100644 --- a/index3.html +++ b/index3.html @@ -315,6 +315,12 @@

    Inline

    • +
  • + + +

    uPlot

    +     +
  • diff --git a/package-lock.json b/package-lock.json index f2a1a9f41..c54cb7ea9 100644 --- a/package-lock.json +++ b/package-lock.json @@ -11347,6 +11347,11 @@ } } }, + "uplot": { + "version": "1.4.4", + "resolved": "https://registry.npmjs.org/uplot/-/uplot-1.4.4.tgz", + "integrity": "sha512-vgV84+by3fGTU4bdpffSvA9FX8ide6MsmlBzOASPDdZCquXmCA+T2qodeNdnBen+7YOeqD9H91epVnF0dQgVKw==" + }, "upper-case": { "version": "1.1.3", "resolved": "https://registry.npmjs.org/upper-case/-/upper-case-1.1.3.tgz", diff --git a/package.json b/package.json index 814ae9c66..402ecf6e5 100644 --- a/package.json +++ b/package.json @@ -125,7 +125,8 @@ "summernote": "^0.8.18", "sweetalert2": "^10.3.5", "tempusdominus-bootstrap-4": "^5.1.2", - "toastr": "^2.1.4" + "toastr": "^2.1.4", + "uplot": "^1.4.4" }, "devDependencies": { "@babel/core": "^7.11.6", diff --git a/pages/UI/buttons.html b/pages/UI/buttons.html index 8304808db..a14ce9ccb 100644 --- a/pages/UI/buttons.html +++ b/pages/UI/buttons.html @@ -304,6 +304,12 @@

    Inline

    • +
  • + + +

    uPlot

    +     +
  • diff --git a/pages/UI/general.html b/pages/UI/general.html index fe632a70f..460d12554 100644 --- a/pages/UI/general.html +++ b/pages/UI/general.html @@ -348,6 +348,12 @@

    Inline

    • +
  • + + +

    uPlot

    +     +
  • diff --git a/pages/UI/icons.html b/pages/UI/icons.html index 9a0d70024..bf33ca7bb 100644 --- a/pages/UI/icons.html +++ b/pages/UI/icons.html @@ -304,6 +304,12 @@

    Inline

    • +
  • + + +

    uPlot

    +     +
  • diff --git a/pages/UI/modals.html b/pages/UI/modals.html index 3c769f700..b05960835 100644 --- a/pages/UI/modals.html +++ b/pages/UI/modals.html @@ -308,6 +308,12 @@

    Inline

    • +
  • + + +

    uPlot

    +     +
  • diff --git a/pages/UI/navbar.html b/pages/UI/navbar.html index 2552b21b2..02cf22b45 100644 --- a/pages/UI/navbar.html +++ b/pages/UI/navbar.html @@ -310,6 +310,12 @@

    Inline

    • +
  • + + +

    uPlot

    +     +
  • diff --git a/pages/UI/ribbons.html b/pages/UI/ribbons.html index f84072b6c..5f1e6ad93 100644 --- a/pages/UI/ribbons.html +++ b/pages/UI/ribbons.html @@ -304,6 +304,12 @@

    Inline

    • +
  • + + +

    uPlot

    +     +
  • diff --git a/pages/UI/sliders.html b/pages/UI/sliders.html index 5dd0f986b..bc21ff47c 100644 --- a/pages/UI/sliders.html +++ b/pages/UI/sliders.html @@ -308,6 +308,12 @@

    Inline

    • +
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    uPlot

    +     +
  • diff --git a/pages/UI/timeline.html b/pages/UI/timeline.html index 3f9cb1559..f34f1aac2 100644 --- a/pages/UI/timeline.html +++ b/pages/UI/timeline.html @@ -305,6 +305,12 @@

    Inline

    • +
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    uPlot

    +     +
  • diff --git a/pages/calendar.html b/pages/calendar.html index eb249bfee..987d75594 100644 --- a/pages/calendar.html +++ b/pages/calendar.html @@ -306,6 +306,12 @@

    Inline

    • +
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    uPlot

    +     +
  • diff --git a/pages/charts/chartjs.html b/pages/charts/chartjs.html index 2d0071b3f..243c2fb6b 100644 --- a/pages/charts/chartjs.html +++ b/pages/charts/chartjs.html @@ -305,6 +305,12 @@

    Inline

    • +
  • + + +

    uPlot

    +     +
  • diff --git a/pages/charts/flot.html b/pages/charts/flot.html index 39146143f..4a86f35c6 100644 --- a/pages/charts/flot.html +++ b/pages/charts/flot.html @@ -304,6 +304,12 @@

    Inline

    • +
  • + + +

    uPlot

    +     +
  • diff --git a/pages/charts/inline.html b/pages/charts/inline.html index 85702b854..1c9cf964c 100644 --- a/pages/charts/inline.html +++ b/pages/charts/inline.html @@ -304,6 +304,12 @@

    Inline

    • +
  • + + +

    uPlot

    +     +
  • diff --git a/pages/charts/uplot.html b/pages/charts/uplot.html new file mode 100644 index 000000000..f142da648 --- /dev/null +++ b/pages/charts/uplot.html @@ -0,0 +1,1004 @@ + + + + + + AdminLTE 3 | uPlot + + + + + + + + + + + +
    + + + + + + + + +
    + +
    +
    +
    +
    +

    ChartJS

    +
    +
    +
      +
    1. Home
      2. +
    2. ChartJS
      3. +
    +
    +
    +
    +
    + + +
    +
    + +
    +
    +

    Area Chart

    + +
    + + +
    +
    +
    +
    +
    +
    +
    + +
    + + + +
    +
    +

    Line Chart

    + +
    + + +
    +
    +
    +
    +
    +
    +
    + +
    + +
    +
    + +
    + +
    +
    + Version 3.1.0-pre +
    + Copyright © 2014-2020 AdminLTE.io. All rights reserved. +
    + + + + +
    + + + + + + + + + + + + + + + + diff --git a/pages/examples/404.html b/pages/examples/404.html index acb543bd8..4a6aed02c 100644 --- a/pages/examples/404.html +++ b/pages/examples/404.html @@ -304,6 +304,12 @@

    Inline

    • +
  • + + +

    uPlot

    +     +
  • diff --git a/pages/examples/500.html b/pages/examples/500.html index afe827ba0..5e2284328 100644 --- a/pages/examples/500.html +++ b/pages/examples/500.html @@ -304,6 +304,12 @@

    Inline

    • +
  • + + +

    uPlot

    +     +
  • diff --git a/pages/examples/blank.html b/pages/examples/blank.html index b4e866f96..50dd71b2e 100644 --- a/pages/examples/blank.html +++ b/pages/examples/blank.html @@ -305,6 +305,12 @@

    Inline

    • +
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    uPlot

    +     +
  • diff --git a/pages/examples/contact-us.html b/pages/examples/contact-us.html index ae2fe96ef..28711e0f7 100644 --- a/pages/examples/contact-us.html +++ b/pages/examples/contact-us.html @@ -305,6 +305,12 @@

    Inline

    • +
  • + + +

    uPlot

    +     +
  • diff --git a/pages/examples/contacts.html b/pages/examples/contacts.html index dc0422b8e..d27db283d 100644 --- a/pages/examples/contacts.html +++ b/pages/examples/contacts.html @@ -305,6 +305,12 @@

    Inline

    • +
  • + + +

    uPlot

    +     +
  • diff --git a/pages/examples/e-commerce.html b/pages/examples/e-commerce.html index aaab4bcbc..3ada8b220 100644 --- a/pages/examples/e-commerce.html +++ b/pages/examples/e-commerce.html @@ -305,6 +305,12 @@

    Inline

    • +
  • + + +

    uPlot

    +     +
  • diff --git a/pages/examples/faq.html b/pages/examples/faq.html index d930c49d4..03728e485 100644 --- a/pages/examples/faq.html +++ b/pages/examples/faq.html @@ -305,6 +305,12 @@

    Inline

    • +
  • + + +

    uPlot

    +     +
  • diff --git a/pages/examples/invoice.html b/pages/examples/invoice.html index 070c7d828..868f81bd3 100644 --- a/pages/examples/invoice.html +++ b/pages/examples/invoice.html @@ -304,6 +304,12 @@

    Inline

    • +
  • + + +

    uPlot

    +     +
  • diff --git a/pages/examples/language-menu.html b/pages/examples/language-menu.html index ec487d879..49b9bf85c 100644 --- a/pages/examples/language-menu.html +++ b/pages/examples/language-menu.html @@ -317,6 +317,12 @@

    Inline

    • +
  • + + +

    uPlot

    +     +
  • diff --git a/pages/examples/legacy-user-menu.html b/pages/examples/legacy-user-menu.html index 472b26f63..1259df197 100644 --- a/pages/examples/legacy-user-menu.html +++ b/pages/examples/legacy-user-menu.html @@ -332,6 +332,12 @@

    Inline

    • +
  • + + +

    uPlot

    +     +
  • diff --git a/pages/examples/pace.html b/pages/examples/pace.html index 3e0581547..8bf57d625 100644 --- a/pages/examples/pace.html +++ b/pages/examples/pace.html @@ -307,6 +307,12 @@

    Inline

    • +
  • + + +

    uPlot

    +     +
  • diff --git a/pages/examples/profile.html b/pages/examples/profile.html index 2600f8d72..c26d0466b 100644 --- a/pages/examples/profile.html +++ b/pages/examples/profile.html @@ -304,6 +304,12 @@

    Inline

    • +
  • + + +

    uPlot

    +     +
  • diff --git a/pages/examples/project-add.html b/pages/examples/project-add.html index c8d46f0ee..93d8eb4e6 100644 --- a/pages/examples/project-add.html +++ b/pages/examples/project-add.html @@ -305,6 +305,12 @@

    Inline

    • +
  • + + +

    uPlot

    +     +
  • diff --git a/pages/examples/project-detail.html b/pages/examples/project-detail.html index f340f9462..180a9117a 100644 --- a/pages/examples/project-detail.html +++ b/pages/examples/project-detail.html @@ -305,6 +305,12 @@

    Inline

    • +
  • + + +

    uPlot

    +     +
  • diff --git a/pages/examples/project-edit.html b/pages/examples/project-edit.html index 964b60fd6..dc1f7a8f7 100644 --- a/pages/examples/project-edit.html +++ b/pages/examples/project-edit.html @@ -305,6 +305,12 @@

    Inline

    • +
  • + + +

    uPlot

    +     +
  • diff --git a/pages/examples/projects.html b/pages/examples/projects.html index 3c8fc7656..3f0facca3 100644 --- a/pages/examples/projects.html +++ b/pages/examples/projects.html @@ -305,6 +305,12 @@

    Inline

    • +
  • + + +

    uPlot

    +     +
  • diff --git a/pages/forms/advanced.html b/pages/forms/advanced.html index 61049a255..c1c5fb81c 100644 --- a/pages/forms/advanced.html +++ b/pages/forms/advanced.html @@ -321,6 +321,12 @@

    Inline

    • +
  • + + +

    uPlot

    +     +
  • diff --git a/pages/forms/editors.html b/pages/forms/editors.html index 76aa9a512..86d02cae7 100644 --- a/pages/forms/editors.html +++ b/pages/forms/editors.html @@ -311,6 +311,12 @@

    Inline

    • +
  • + + +

    uPlot

    +     +
  • diff --git a/pages/forms/general.html b/pages/forms/general.html index e54c31576..bcf8e400b 100644 --- a/pages/forms/general.html +++ b/pages/forms/general.html @@ -304,6 +304,12 @@

    Inline

    • +
  • + + +

    uPlot

    +     +
  • diff --git a/pages/forms/validation.html b/pages/forms/validation.html index c710374a5..db8fac7ee 100644 --- a/pages/forms/validation.html +++ b/pages/forms/validation.html @@ -304,6 +304,12 @@

    Inline

    • +
  • + + +

    uPlot

    +     +
  • diff --git a/pages/gallery.html b/pages/gallery.html index ad9e67e74..155a683db 100644 --- a/pages/gallery.html +++ b/pages/gallery.html @@ -306,6 +306,12 @@

    Inline

    • +
  • + + +

    uPlot

    +     +
  • diff --git a/pages/kanban.html b/pages/kanban.html index 31b8e6b3c..9ee6ae5b7 100644 --- a/pages/kanban.html +++ b/pages/kanban.html @@ -306,6 +306,12 @@

    Inline

    • +
  • + + +

    uPlot

    +     +
  • diff --git a/pages/layout/boxed.html b/pages/layout/boxed.html index f5e77087f..c7bed5996 100644 --- a/pages/layout/boxed.html +++ b/pages/layout/boxed.html @@ -305,6 +305,12 @@

    Inline

    • +
  • + + +

    uPlot

    +     +
  • diff --git a/pages/layout/collapsed-sidebar.html b/pages/layout/collapsed-sidebar.html index d38f45ba2..f363e2142 100644 --- a/pages/layout/collapsed-sidebar.html +++ b/pages/layout/collapsed-sidebar.html @@ -305,6 +305,12 @@

    Inline

    • +
  • + + +

    uPlot

    +     +
  • diff --git a/pages/layout/fixed-footer.html b/pages/layout/fixed-footer.html index da6298716..47f82d6a3 100644 --- a/pages/layout/fixed-footer.html +++ b/pages/layout/fixed-footer.html @@ -305,6 +305,12 @@

    Inline

    • +
  • + + +

    uPlot

    +     +
  • diff --git a/pages/layout/fixed-sidebar-custom.html b/pages/layout/fixed-sidebar-custom.html index 8a9cc9bb9..54b916569 100644 --- a/pages/layout/fixed-sidebar-custom.html +++ b/pages/layout/fixed-sidebar-custom.html @@ -307,6 +307,12 @@

    Inline

    • +
  • + + +

    uPlot

    +     +
  • diff --git a/pages/layout/fixed-sidebar.html b/pages/layout/fixed-sidebar.html index 4dd15c76a..df3d64708 100644 --- a/pages/layout/fixed-sidebar.html +++ b/pages/layout/fixed-sidebar.html @@ -307,6 +307,12 @@

    Inline

    • +
  • + + +

    uPlot

    +     +
  • diff --git a/pages/layout/fixed-topnav.html b/pages/layout/fixed-topnav.html index de0673d9d..ef12e7773 100644 --- a/pages/layout/fixed-topnav.html +++ b/pages/layout/fixed-topnav.html @@ -305,6 +305,12 @@

    Inline

    • +
  • + + +

    uPlot

    +     +
  • diff --git a/pages/layout/top-nav-sidebar.html b/pages/layout/top-nav-sidebar.html index 7a27ddb94..e970e7e72 100644 --- a/pages/layout/top-nav-sidebar.html +++ b/pages/layout/top-nav-sidebar.html @@ -350,6 +350,12 @@ scratch. This page gets rid of all links and provides the needed markup only.

    Inline

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    uPlot

    +     +
  • diff --git a/pages/mailbox/compose.html b/pages/mailbox/compose.html index 8e8300672..f0e9472a8 100644 --- a/pages/mailbox/compose.html +++ b/pages/mailbox/compose.html @@ -306,6 +306,12 @@

    Inline

    • +
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    uPlot

    +     +
  • diff --git a/pages/mailbox/mailbox.html b/pages/mailbox/mailbox.html index c49eca8d2..828019ce8 100644 --- a/pages/mailbox/mailbox.html +++ b/pages/mailbox/mailbox.html @@ -306,6 +306,12 @@

    Inline

    • +
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    uPlot

    +     +
  • diff --git a/pages/mailbox/read-mail.html b/pages/mailbox/read-mail.html index 7ccbcc62f..c1768195f 100644 --- a/pages/mailbox/read-mail.html +++ b/pages/mailbox/read-mail.html @@ -304,6 +304,12 @@

    Inline

    • +
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    uPlot

    +     +
  • diff --git a/pages/search/enhanced-results.html b/pages/search/enhanced-results.html index 9f4bf6aff..03ac35deb 100644 --- a/pages/search/enhanced-results.html +++ b/pages/search/enhanced-results.html @@ -306,6 +306,12 @@

    Inline

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    uPlot

    +     +
  • diff --git a/pages/search/enhanced.html b/pages/search/enhanced.html index 9741cbc32..0502a4bb6 100644 --- a/pages/search/enhanced.html +++ b/pages/search/enhanced.html @@ -306,6 +306,12 @@

    Inline

    • +
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    uPlot

    +     +
  • diff --git a/pages/search/simple-results.html b/pages/search/simple-results.html index 981daad3b..5c037c7e6 100644 --- a/pages/search/simple-results.html +++ b/pages/search/simple-results.html @@ -304,6 +304,12 @@

    Inline

    • +
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    uPlot

    +     +
  • diff --git a/pages/search/simple.html b/pages/search/simple.html index 368d97b2f..4c8c6e589 100644 --- a/pages/search/simple.html +++ b/pages/search/simple.html @@ -304,6 +304,12 @@

    Inline

    • +
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    uPlot

    +     +
  • diff --git a/pages/tables/data.html b/pages/tables/data.html index d0bf913ba..ecf3ca9c8 100644 --- a/pages/tables/data.html +++ b/pages/tables/data.html @@ -308,6 +308,12 @@

    Inline

    • +
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    uPlot

    +     +
  • diff --git a/pages/tables/jsgrid.html b/pages/tables/jsgrid.html index 1ae5c8474..5ed153e4e 100644 --- a/pages/tables/jsgrid.html +++ b/pages/tables/jsgrid.html @@ -307,6 +307,12 @@

    Inline

    • +
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    uPlot

    +     +
  • diff --git a/pages/tables/simple.html b/pages/tables/simple.html index b041380d9..bdfb0226d 100644 --- a/pages/tables/simple.html +++ b/pages/tables/simple.html @@ -304,6 +304,12 @@

    Inline

    • +
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    uPlot

    +     +
  • diff --git a/pages/widgets.html b/pages/widgets.html index fea298b3a..955b48e8b 100644 --- a/pages/widgets.html +++ b/pages/widgets.html @@ -306,6 +306,12 @@

    Inline

    • +
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    uPlot

    +     +
  • diff --git a/plugins/uplot/uPlot.cjs.js b/plugins/uplot/uPlot.cjs.js new file mode 100644 index 000000000..b0426a95f --- /dev/null +++ b/plugins/uplot/uPlot.cjs.js @@ -0,0 +1,3451 @@ +/** +* Copyright (c) 2020, Leon Sorokin +* All rights reserved. (MIT Licensed) +* +* uPlot.js (μPlot) +* A small, fast chart for time series, lines, areas, ohlc & bars +* https://github.com/leeoniya/uPlot (v1.4.4) +*/ + +'use strict'; + +function debounce(fn, time) { + var pending = null; + + function run() { + pending = null; + fn(); + } + + return function() { + clearTimeout(pending); + pending = setTimeout(run, time); + } +} + +// binary search for index of closest value +function closestIdx(num, arr, lo, hi) { + var mid; + lo = lo || 0; + hi = hi || arr.length - 1; + var bitwise = hi <= 2147483647; + + while (hi - lo > 1) { + mid = bitwise ? (lo + hi) >> 1 : floor((lo + hi) / 2); + + if (arr[mid] < num) + { lo = mid; } + else + { hi = mid; } + } + + if (num - arr[lo] <= arr[hi] - num) + { return lo; } + + return hi; +} + +function getMinMax(data, _i0, _i1, sorted) { +// console.log("getMinMax()"); + + var _min = inf; + var _max = -inf; + + if (sorted == 1) { + _min = data[_i0]; + _max = data[_i1]; + } + else if (sorted == -1) { + _min = data[_i1]; + _max = data[_i0]; + } + else { + for (var i = _i0; i <= _i1; i++) { + if (data[i] != null) { + _min = min(_min, data[i]); + _max = max(_max, data[i]); + } + } + } + + return [_min, _max]; +} + +var _fixedTuple = [0, 0]; + +function fixIncr(minIncr, maxIncr, minExp, maxExp) { + _fixedTuple[0] = minExp < 0 ? roundDec(minIncr, -minExp) : minIncr; + _fixedTuple[1] = maxExp < 0 ? roundDec(maxIncr, -maxExp) : maxIncr; + return _fixedTuple; +} + +function rangeLog(min, max, base, fullMags) { + var logFn = base == 10 ? log10 : log2; + + if (min == max) { + min /= base; + max *= base; + } + + var minExp, maxExp, minMaxIncrs; + + if (fullMags) { + minExp = floor(logFn(min)); + maxExp = ceil(logFn(max)); + + minMaxIncrs = fixIncr(pow(base, minExp), pow(base, maxExp), minExp, maxExp); + + min = minMaxIncrs[0]; + max = minMaxIncrs[1]; + } + else { + minExp = floor(logFn(min)); + maxExp = floor(logFn(max)); + + minMaxIncrs = fixIncr(pow(base, minExp), pow(base, maxExp), minExp, maxExp); + + min = incrRoundDn(min, minMaxIncrs[0]); + max = incrRoundUp(max, minMaxIncrs[1]); + } + + return [min, max]; +} + +var _eqRangePart = { + pad: 0, + soft: null, + mode: 0, +}; + +var _eqRange = { + min: _eqRangePart, + max: _eqRangePart, +}; + +// this ensures that non-temporal/numeric y-axes get multiple-snapped padding added above/below +// TODO: also account for incrs when snapping to ensure top of axis gets a tick & value +function rangeNum(_min, _max, mult, extra) { + if (isObj(mult)) + { return _rangeNum(_min, _max, mult); } + + _eqRangePart.pad = mult; + _eqRangePart.soft = extra ? 0 : null; + _eqRangePart.mode = extra ? 2 : 0; + + return _rangeNum(_min, _max, _eqRange); +} + +// nullish coalesce +function ifNull(lh, rh) { + return lh == null ? rh : lh; +} + +function _rangeNum(_min, _max, cfg) { + var cmin = cfg.min; + var cmax = cfg.max; + + var padMin = ifNull(cmin.pad, 0); + var padMax = ifNull(cmax.pad, 0); + + var hardMin = ifNull(cmin.hard, -inf); + var hardMax = ifNull(cmax.hard, inf); + + var softMin = ifNull(cmin.soft, inf); + var softMax = ifNull(cmax.soft, -inf); + + var softMinMode = ifNull(cmin.mode, 0); + var softMaxMode = ifNull(cmax.mode, 0); + + var delta = _max - _min; + var nonZeroDelta = delta || abs(_max) || 1e3; + var mag = log10(nonZeroDelta); + var base = pow(10, floor(mag)); + + var _padMin = nonZeroDelta * (delta == 0 ? (_min == 0 ? .1 : 1) : padMin); + var _newMin = roundDec(incrRoundDn(_min - _padMin, base/100), 6); + var _softMin = _min >= softMin && (softMinMode == 1 || softMinMode == 2 && _newMin < softMin) ? softMin : inf; + var minLim = max(hardMin, _newMin < _softMin && _min >= _softMin ? _softMin : min(_softMin, _newMin)); + + var _padMax = nonZeroDelta * (delta == 0 ? (_max == 0 ? .1 : 1) : padMax); + var _newMax = roundDec(incrRoundUp(_max + _padMax, base/100), 6); + var _softMax = _max <= softMax && (softMaxMode == 1 || softMaxMode == 2 && _newMax > softMax) ? softMax : -inf; + var maxLim = min(hardMax, _newMax > _softMax && _max <= _softMax ? _softMax : max(_softMax, _newMax)); + + if (minLim == maxLim && minLim == 0) + { maxLim = 100; } + + return [minLim, maxLim]; +} + +// alternative: https://stackoverflow.com/a/2254896 +var fmtNum = new Intl.NumberFormat(navigator.language).format; + +var M = Math; + +var abs = M.abs; +var floor = M.floor; +var round = M.round; +var ceil = M.ceil; +var min = M.min; +var max = M.max; +var pow = M.pow; +var log10 = M.log10; +var log2 = M.log2; +var PI = M.PI; + +var inf = Infinity; + +function incrRound(num, incr) { + return round(num/incr)*incr; +} + +function clamp(num, _min, _max) { + return min(max(num, _min), _max); +} + +function fnOrSelf(v) { + return typeof v == "function" ? v : function () { return v; }; +} + +function retArg1(_0, _1) { + return _1; +} + +function incrRoundUp(num, incr) { + return ceil(num/incr)*incr; +} + +function incrRoundDn(num, incr) { + return floor(num/incr)*incr; +} + +function roundDec(val, dec) { + return round(val * (dec = Math.pow( 10, dec ))) / dec; +} + +var fixedDec = new Map(); + +function guessDec(num) { + return ((""+num).split(".")[1] || "").length; +} + +function genIncrs(base, minExp, maxExp, mults) { + var incrs = []; + + var multDec = mults.map(guessDec); + + for (var exp = minExp; exp < maxExp; exp++) { + var expa = abs(exp); + var mag = roundDec(pow(base, exp), expa); + + for (var i = 0; i < mults.length; i++) { + var _incr = mults[i] * mag; + var dec = (_incr >= 0 && exp >= 0 ? 0 : expa) + (exp >= multDec[i] ? 0 : multDec[i]); + var incr = roundDec(_incr, dec); + incrs.push(incr); + fixedDec.set(incr, dec); + } + } + + return incrs; +} + +//export const assign = Object.assign; + +var EMPTY_OBJ = {}; + +var isArr = Array.isArray; + +function isStr(v) { + return typeof v === 'string'; +} + +function isObj(v) { + return typeof v === 'object' && v !== null; +} + +function copy(o) { + var out; + + if (isArr(o)) + { out = o.map(copy); } + else if (isObj(o)) { + out = {}; + for (var k in o) + { out[k] = copy(o[k]); } + } + else + { out = o; } + + return out; +} + +function assign(targ) { + var args = arguments; + + for (var i = 1; i < args.length; i++) { + var src = args[i]; + + for (var key in src) { + if (isObj(targ[key])) + { assign(targ[key], copy(src[key])); } + else + { targ[key] = copy(src[key]); } + } + } + + return targ; +} + +var microTask = typeof queueMicrotask == "undefined" ? function (fn) { return Promise.resolve().then(fn); } : queueMicrotask; + +var WIDTH = "width"; +var HEIGHT = "height"; +var TOP = "top"; +var BOTTOM = "bottom"; +var LEFT = "left"; +var RIGHT = "right"; +var firstChild = "firstChild"; +var createElement = "createElement"; +var hexBlack = "#000"; +var transparent = hexBlack + "0"; +var classList = "classList"; + +var mousemove = "mousemove"; +var mousedown = "mousedown"; +var mouseup = "mouseup"; +var mouseenter = "mouseenter"; +var mouseleave = "mouseleave"; +var dblclick = "dblclick"; +var resize = "resize"; +var scroll = "scroll"; + +var pre = "u-"; + +var UPLOT = "uplot"; +var TITLE = pre + "title"; +var WRAP = pre + "wrap"; +var UNDER = pre + "under"; +var OVER = pre + "over"; +var OFF = pre + "off"; +var SELECT = pre + "select"; +var CURSOR_X = pre + "cursor-x"; +var CURSOR_Y = pre + "cursor-y"; +var CURSOR_PT = pre + "cursor-pt"; +var LEGEND = pre + "legend"; +var LEGEND_LIVE = pre + "live"; +var LEGEND_INLINE = pre + "inline"; +var LEGEND_THEAD = pre + "thead"; +var LEGEND_SERIES = pre + "series"; +var LEGEND_MARKER = pre + "marker"; +var LEGEND_LABEL = pre + "label"; +var LEGEND_VALUE = pre + "value"; + +var rAF = requestAnimationFrame; +var doc = document; +var win = window; +var pxRatio = devicePixelRatio; + +function addClass(el, c) { + c != null && el[classList].add(c); +} + +function remClass(el, c) { + el[classList].remove(c); +} + +function setStylePx(el, name, value) { + el.style[name] = value + "px"; +} + +function placeTag(tag, cls, targ, refEl) { + var el = doc[createElement](tag); + + if (cls != null) + { addClass(el, cls); } + + if (targ != null) + { targ.insertBefore(el, refEl); } + + return el; +} + +function placeDiv(cls, targ) { + return placeTag("div", cls, targ); +} + +function trans(el, xPos, yPos, xMax, yMax) { + el.style.transform = "translate(" + xPos + "px," + yPos + "px)"; + + if (xPos < 0 || yPos < 0 || xPos > xMax || yPos > yMax) + { addClass(el, OFF); } + else + { remClass(el, OFF); } +} + +var evOpts = {passive: true}; + +function on(ev, el, cb) { + el.addEventListener(ev, cb, evOpts); +} + +function off(ev, el, cb) { + el.removeEventListener(ev, cb, evOpts); +} + +var months = [ + "January", + "February", + "March", + "April", + "May", + "June", + "July", + "August", + "September", + "October", + "November", + "December" ]; + +var days = [ + "Sunday", + "Monday", + "Tuesday", + "Wednesday", + "Thursday", + "Friday", + "Saturday" ]; + +function slice3(str) { + return str.slice(0, 3); +} + +var days3 = days.map(slice3); + +var months3 = months.map(slice3); + +var engNames = { + MMMM: months, + MMM: months3, + WWWW: days, + WWW: days3, +}; + +function zeroPad2(int) { + return (int < 10 ? '0' : '') + int; +} + +function zeroPad3(int) { + return (int < 10 ? '00' : int < 100 ? '0' : '') + int; +} + +/* +function suffix(int) { + let mod10 = int % 10; + + return int + ( + mod10 == 1 && int != 11 ? "st" : + mod10 == 2 && int != 12 ? "nd" : + mod10 == 3 && int != 13 ? "rd" : "th" + ); +} +*/ + +var getFullYear = 'getFullYear'; +var getMonth = 'getMonth'; +var getDate = 'getDate'; +var getDay = 'getDay'; +var getHours = 'getHours'; +var getMinutes = 'getMinutes'; +var getSeconds = 'getSeconds'; +var getMilliseconds = 'getMilliseconds'; + +var subs = { + // 2019 + YYYY: function (d) { return d[getFullYear](); }, + // 19 + YY: function (d) { return (d[getFullYear]()+'').slice(2); }, + // July + MMMM: function (d, names) { return names.MMMM[d[getMonth]()]; }, + // Jul + MMM: function (d, names) { return names.MMM[d[getMonth]()]; }, + // 07 + MM: function (d) { return zeroPad2(d[getMonth]()+1); }, + // 7 + M: function (d) { return d[getMonth]()+1; }, + // 09 + DD: function (d) { return zeroPad2(d[getDate]()); }, + // 9 + D: function (d) { return d[getDate](); }, + // Monday + WWWW: function (d, names) { return names.WWWW[d[getDay]()]; }, + // Mon + WWW: function (d, names) { return names.WWW[d[getDay]()]; }, + // 03 + HH: function (d) { return zeroPad2(d[getHours]()); }, + // 3 + H: function (d) { return d[getHours](); }, + // 9 (12hr, unpadded) + h: function (d) {var h = d[getHours](); return h == 0 ? 12 : h > 12 ? h - 12 : h;}, + // AM + AA: function (d) { return d[getHours]() >= 12 ? 'PM' : 'AM'; }, + // am + aa: function (d) { return d[getHours]() >= 12 ? 'pm' : 'am'; }, + // a + a: function (d) { return d[getHours]() >= 12 ? 'p' : 'a'; }, + // 09 + mm: function (d) { return zeroPad2(d[getMinutes]()); }, + // 9 + m: function (d) { return d[getMinutes](); }, + // 09 + ss: function (d) { return zeroPad2(d[getSeconds]()); }, + // 9 + s: function (d) { return d[getSeconds](); }, + // 374 + fff: function (d) { return zeroPad3(d[getMilliseconds]()); }, +}; + +function fmtDate(tpl, names) { + names = names || engNames; + var parts = []; + + var R = /\{([a-z]+)\}|[^{]+/gi, m; + + while (m = R.exec(tpl)) + { parts.push(m[0][0] == '{' ? subs[m[1]] : m[0]); } + + return function (d) { + var out = ''; + + for (var i = 0; i < parts.length; i++) + { out += typeof parts[i] == "string" ? parts[i] : parts[i](d, names); } + + return out; + } +} + +var localTz = new Intl.DateTimeFormat().resolvedOptions().timeZone; + +// https://stackoverflow.com/questions/15141762/how-to-initialize-a-javascript-date-to-a-particular-time-zone/53652131#53652131 +function tzDate(date, tz) { + var date2; + + // perf optimization + if (tz == 'Etc/UTC') + { date2 = new Date(+date + date.getTimezoneOffset() * 6e4); } + else if (tz == localTz) + { date2 = date; } + else { + date2 = new Date(date.toLocaleString('en-US', {timeZone: tz})); + date2.setMilliseconds(date[getMilliseconds]()); + } + + return date2; +} + +//export const series = []; + +// default formatters: + +var onlyWhole = function (v) { return v % 1 == 0; }; + +var allMults = [1,2,2.5,5]; + +var wholeMults = allMults.filter(onlyWhole); + +// ...0.01, 0.02, 0.025, 0.05, 0.1, 0.2, 0.25, 0.5 +var decIncrs = genIncrs(10, -16, 0, allMults); + +// 1, 2, 2.5, 5, 10, 20, 25, 50... +var oneIncrs = genIncrs(10, 0, 16, allMults); + +// 1, 2, 5, 10, 20, 25, 50... +var wholeIncrs = oneIncrs.filter(onlyWhole); + +var numIncrs = decIncrs.concat(oneIncrs); + +var s = 1, + m = 60, + h = m * m, + d = h * 24, + mo = d * 30, + y = d * 365; + +// min of 1e-3 prevents setting a temporal x ticks too small since Date objects cannot advance ticks smaller than 1ms +var timeIncrs = genIncrs(10, -3, 0, wholeMults).concat([ + // minute divisors (# of secs) + 1, + 5, + 10, + 15, + 30, + // hour divisors (# of mins) + m, + m * 5, + m * 10, + m * 15, + m * 30, + // day divisors (# of hrs) + h, + h * 2, + h * 3, + h * 4, + h * 6, + h * 8, + h * 12, + // month divisors TODO: need more? + d, + d * 2, + d * 3, + d * 4, + d * 5, + d * 6, + d * 7, + d * 8, + d * 9, + d * 10, + d * 15, + // year divisors (# months, approx) + mo, + mo * 2, + mo * 3, + mo * 4, + mo * 6, + // century divisors + y, + y * 2, + y * 5, + y * 10, + y * 25, + y * 50, + y * 100 ]); + +// base 2 +var binIncrs = genIncrs(2, -53, 53, [1]); + +/* +console.log({ + decIncrs, + oneIncrs, + wholeIncrs, + numIncrs, + timeIncrs, + fixedDec, +}); +*/ + +function timeAxisStamps(stampCfg, fmtDate) { + return stampCfg.map(function (s) { return s.map(function (v, i) { return i == 0 || i == 8 || v == null ? v : fmtDate(i == 1 || s[8] == 0 ? v : s[1] + v); } + ); }); +} + +var NL = "\n"; + +var yyyy = "{YYYY}"; +var NLyyyy = NL + yyyy; +var md = "{M}/{D}"; +var NLmd = NL + md; +var NLmdyy = NLmd + "/{YY}"; + +var aa = "{aa}"; +var hmm = "{h}:{mm}"; +var hmmaa = hmm + aa; +var NLhmmaa = NL + hmmaa; +var ss = ":{ss}"; + +var _ = null; + +// [0]: minimum num secs in the tick incr +// [1]: default tick format +// [2-7]: rollover tick formats +// [8]: mode: 0: replace [1] -> [2-7], 1: concat [1] + [2-7] +var _timeAxisStamps = [ +// tick incr default year month day hour min sec mode + [y, yyyy, _, _, _, _, _, _, 1], + [d * 28, "{MMM}", NLyyyy, _, _, _, _, _, 1], + [d, md, NLyyyy, _, _, _, _, _, 1], + [h, "{h}" + aa, NLmdyy, _, NLmd, _, _, _, 1], + [m, hmmaa, NLmdyy, _, NLmd, _, _, _, 1], + [s, ss, NLmdyy + " " + hmmaa, _, NLmd + " " + hmmaa, _, NLhmmaa, _, 1], + [1e-3, ss + ".{fff}", NLmdyy + " " + hmmaa, _, NLmd + " " + hmmaa, _, NLhmmaa, _, 1] ]; + +// TODO: will need to accept spaces[] and pull incr into the loop when grid will be non-uniform, eg for log scales. +// currently we ignore this for months since they're *nearly* uniform and the added complexity is not worth it +function timeAxisVals(tzDate, stamps) { + return function (self, splits, axisIdx, foundSpace, foundIncr) { + var s = stamps.find(function (s) { return foundIncr >= s[0]; }) || stamps[stamps.length - 1]; + + // these track boundaries when a full label is needed again + var prevYear; + var prevMnth; + var prevDate; + var prevHour; + var prevMins; + var prevSecs; + + return splits.map(function (split) { + var date = tzDate(split); + + var newYear = date[getFullYear](); + var newMnth = date[getMonth](); + var newDate = date[getDate](); + var newHour = date[getHours](); + var newMins = date[getMinutes](); + var newSecs = date[getSeconds](); + + var stamp = ( + newYear != prevYear && s[2] || + newMnth != prevMnth && s[3] || + newDate != prevDate && s[4] || + newHour != prevHour && s[5] || + newMins != prevMins && s[6] || + newSecs != prevSecs && s[7] || + s[1] + ); + + prevYear = newYear; + prevMnth = newMnth; + prevDate = newDate; + prevHour = newHour; + prevMins = newMins; + prevSecs = newSecs; + + return stamp(date); + }); + } +} + +// for when axis.values is defined as a static fmtDate template string +function timeAxisVal(tzDate, dateTpl) { + var stamp = fmtDate(dateTpl); + return function (self, splits, axisIdx, foundSpace, foundIncr) { return splits.map(function (split) { return stamp(tzDate(split)); }); }; +} + +function mkDate(y, m, d) { + return new Date(y, m, d); +} + +// the ensures that axis ticks, values & grid are aligned to logical temporal breakpoints and not an arbitrary timestamp +// https://www.timeanddate.com/time/dst/ +// https://www.timeanddate.com/time/dst/2019.html +// https://www.epochconverter.com/timezones +function timeAxisSplits(tzDate) { + return function (self, axisIdx, scaleMin, scaleMax, foundIncr, foundSpace) { + var splits = []; + var isYr = foundIncr >= y; + var isMo = foundIncr >= mo && foundIncr < y; + + // get the timezone-adjusted date + var minDate = tzDate(scaleMin); + var minDateTs = minDate / 1e3; + + // get ts of 12am (this lands us at or before the original scaleMin) + var minMin = mkDate(minDate[getFullYear](), isYr ? 0 : minDate[getMonth](), isMo || isYr ? 1 : minDate[getDate]()); + var minMinTs = minMin / 1e3; + + if (isMo || isYr) { + var moIncr = isMo ? foundIncr / mo : 0; + var yrIncr = isYr ? foundIncr / y : 0; + // let tzOffset = scaleMin - minDateTs; // needed? + var split = minDateTs == minMinTs ? minDateTs : mkDate(minMin[getFullYear]() + yrIncr, minMin[getMonth]() + moIncr, 1) / 1e3; + var splitDate = new Date(split * 1e3); + var baseYear = splitDate[getFullYear](); + var baseMonth = splitDate[getMonth](); + + for (var i = 0; split <= scaleMax; i++) { + var next = mkDate(baseYear + yrIncr * i, baseMonth + moIncr * i, 1); + var offs = next - tzDate(next / 1e3); + + split = (+next + offs) / 1e3; + + if (split <= scaleMax) + { splits.push(split); } + } + } + else { + var incr0 = foundIncr >= d ? d : foundIncr; + var tzOffset = floor(scaleMin) - floor(minDateTs); + var split$1 = minMinTs + tzOffset + incrRoundUp(minDateTs - minMinTs, incr0); + splits.push(split$1); + + var date0 = tzDate(split$1); + + var prevHour = date0[getHours]() + (date0[getMinutes]() / m) + (date0[getSeconds]() / h); + var incrHours = foundIncr / h; + + var minSpace = self.axes[axisIdx]._space; + var pctSpace = foundSpace / minSpace; + + while (1) { + split$1 = roundDec(split$1 + foundIncr, 3); + + if (split$1 > scaleMax) + { break; } + + if (incrHours > 1) { + var expectedHour = floor(roundDec(prevHour + incrHours, 6)) % 24; + var splitDate$1 = tzDate(split$1); + var actualHour = splitDate$1.getHours(); + + var dstShift = actualHour - expectedHour; + + if (dstShift > 1) + { dstShift = -1; } + + split$1 -= dstShift * h; + + prevHour = (prevHour + incrHours) % 24; + + // add a tick only if it's further than 70% of the min allowed label spacing + var prevSplit = splits[splits.length - 1]; + var pctIncr = roundDec((split$1 - prevSplit) / foundIncr, 3); + + if (pctIncr * pctSpace >= .7) + { splits.push(split$1); } + } + else + { splits.push(split$1); } + } + } + + return splits; + } +} + +function timeSeriesStamp(stampCfg, fmtDate) { + return fmtDate(stampCfg); +} +var _timeSeriesStamp = '{YYYY}-{MM}-{DD} {h}:{mm}{aa}'; + +function timeSeriesVal(tzDate, stamp) { + return function (self, val) { return stamp(tzDate(val)); }; +} + +function cursorPoint(self, si) { + var s = self.series[si]; + + var pt = placeDiv(); + + pt.style.background = s.stroke || hexBlack; + + var dia = ptDia(s.width, 1); + var mar = (dia - 1) / -2; + + setStylePx(pt, WIDTH, dia); + setStylePx(pt, HEIGHT, dia); + setStylePx(pt, "marginLeft", mar); + setStylePx(pt, "marginTop", mar); + + return pt; +} + +function dataIdx(self, seriesIdx, cursorIdx) { + return cursorIdx; +} + +var moveTuple = [0,0]; + +function cursorMove(self, mouseLeft1, mouseTop1) { + moveTuple[0] = mouseLeft1; + moveTuple[1] = mouseTop1; + return moveTuple; +} + +function filtBtn0(self, targ, handle) { + return function (e) { + e.button == 0 && handle(e); + }; +} + +function passThru(self, targ, handle) { + return handle; +} + +var cursorOpts = { + show: true, + x: true, + y: true, + lock: false, + move: cursorMove, + points: { + show: cursorPoint, + }, + + bind: { + mousedown: filtBtn0, + mouseup: filtBtn0, + click: filtBtn0, + dblclick: filtBtn0, + + mousemove: passThru, + mouseleave: passThru, + mouseenter: passThru, + }, + + drag: { + setScale: true, + x: true, + y: false, + dist: 0, + uni: null, + _x: false, + _y: false, + }, + + focus: { + prox: -1, + }, + + left: -10, + top: -10, + idx: null, + dataIdx: dataIdx, +}; + +var grid = { + show: true, + stroke: "rgba(0,0,0,0.07)", + width: 2, +// dash: [], + filter: retArg1, +}; + +var ticks = assign({}, grid, {size: 10}); + +var font = '12px system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji"'; +var labelFont = "bold " + font; +var lineMult = 1.5; // font-size multiplier + +var xAxisOpts = { + show: true, + scale: "x", + space: 50, + gap: 5, + size: 50, + labelSize: 30, + labelFont: labelFont, + side: 2, +// class: "x-vals", +// incrs: timeIncrs, +// values: timeVals, +// filter: retArg1, + grid: grid, + ticks: ticks, + font: font, + rotate: 0, +}; + +var numSeriesLabel = "Value"; +var timeSeriesLabel = "Time"; + +var xSeriesOpts = { + show: true, + scale: "x", + auto: false, + sorted: 1, +// label: "Time", +// value: v => stamp(new Date(v * 1e3)), + + // internal caches + min: inf, + max: -inf, + idxs: [], +}; + +function numAxisVals(self, splits, axisIdx, foundSpace, foundIncr) { + return splits.map(function (v) { return v == null ? "" : fmtNum(v); }); +} + +function numAxisSplits(self, axisIdx, scaleMin, scaleMax, foundIncr, foundSpace, forceMin) { + var splits = []; + + var numDec = fixedDec.get(foundIncr) || 0; + + scaleMin = forceMin ? scaleMin : roundDec(incrRoundUp(scaleMin, foundIncr), numDec); + + for (var val = scaleMin; val <= scaleMax; val = roundDec(val + foundIncr, numDec)) + { splits.push(Object.is(val, -0) ? 0 : val); } // coalesces -0 + + return splits; +} + +function logAxisSplits(self, axisIdx, scaleMin, scaleMax, foundIncr, foundSpace, forceMin) { + var splits = []; + + var logBase = self.scales[self.axes[axisIdx].scale].log; + + var logFn = logBase == 10 ? log10 : log2; + + var exp = floor(logFn(scaleMin)); + + foundIncr = pow(logBase, exp); + + if (exp < 0) + { foundIncr = roundDec(foundIncr, -exp); } + + var split = scaleMin; + + do { + splits.push(split); + split = roundDec(split + foundIncr, fixedDec.get(foundIncr)); + + if (split >= foundIncr * logBase) + { foundIncr = split; } + + } while (split <= scaleMax); + + return splits; +} + +var RE_ALL = /./; +var RE_12357 = /[12357]/; +var RE_125 = /[125]/; +var RE_1 = /1/; + +function logAxisValsFilt(self, splits, axisIdx, foundSpace, foundIncr) { + var axis = self.axes[axisIdx]; + var scaleKey = axis.scale; + + if (self.scales[scaleKey].log == 2) + { return splits; } + + var valToPos = self.valToPos; + + var minSpace = axis._space; + + var _10 = valToPos(10, scaleKey); + + var re = ( + valToPos(9, scaleKey) - _10 >= minSpace ? RE_ALL : + valToPos(7, scaleKey) - _10 >= minSpace ? RE_12357 : + valToPos(5, scaleKey) - _10 >= minSpace ? RE_125 : + RE_1 + ); + + return splits.map(function (v) { return re.test(v) ? v : null; }); +} + +function numSeriesVal(self, val) { + return val == null ? "" : fmtNum(val); +} + +var yAxisOpts = { + show: true, + scale: "y", + space: 30, + gap: 5, + size: 50, + labelSize: 30, + labelFont: labelFont, + side: 3, +// class: "y-vals", +// incrs: numIncrs, +// values: (vals, space) => vals, +// filter: retArg1, + grid: grid, + ticks: ticks, + font: font, + rotate: 0, +}; + +// takes stroke width +function ptDia(width, mult) { + var dia = 3 + (width || 1) * 2; + return roundDec(dia * mult, 3); +} + +function seriesPoints(self, si) { + var s = self.series[si]; + var dia = ptDia(s.width, pxRatio); + var maxPts = self.bbox.width / (s.points.space * pxRatio); + var idxs = self.series[0].idxs; + return idxs[1] - idxs[0] <= maxPts; +} + +function seriesFillTo(self, seriesIdx, dataMin, dataMax) { + var scale = self.scales[self.series[seriesIdx].scale]; + return scale.distr == 3 ? scale.min : 0; +} + +var ySeriesOpts = { + scale: "y", + auto: true, + sorted: 0, + show: true, + band: false, + spanGaps: false, + isGap: function (self, seriesIdx, dataIdx) { return true; }, + alpha: 1, + points: { + show: seriesPoints, + // stroke: "#000", + // fill: "#fff", + // width: 1, + // size: 10, + }, +// label: "Value", +// value: v => v, + values: null, + + // internal caches + min: inf, + max: -inf, + idxs: [], + + path: null, + clip: null, +}; + +var xScaleOpts = { + time: true, + auto: true, + distr: 1, + log: 10, + min: null, + max: null, +}; + +var yScaleOpts = assign({}, xScaleOpts, { + time: false, +}); + +var syncs = {}; + +function _sync(opts) { + var clients = []; + + return { + sub: function sub(client) { + clients.push(client); + }, + unsub: function unsub(client) { + clients = clients.filter(function (c) { return c != client; }); + }, + pub: function pub(type, self, x, y, w, h, i) { + if (clients.length > 1) { + clients.forEach(function (client) { + client != self && client.pub(type, self, x, y, w, h, i); + }); + } + } + }; +} + +function setDefaults(d, xo, yo, initY) { + var d2 = initY ? [d[0], d[1]].concat(d.slice(2)) : [d[0]].concat(d.slice(1)); + return d2.map(function (o, i) { return setDefault(o, i, xo, yo); }); +} + +function setDefault(o, i, xo, yo) { + return assign({}, (i == 0 || o && o.side % 2 == 0 ? xo : yo), o); +} + +function getValPct(val, scale) { + return ( + scale.distr == 3 + ? log10(val / scale.min) / log10(scale.max / scale.min) + : (val - scale.min) / (scale.max - scale.min) + ); +} + +function getYPos(val, scale, hgt, top) { + var pctY = getValPct(val, scale); + return top + (1 - pctY) * hgt; +} + +function getXPos(val, scale, wid, lft) { + var pctX = getValPct(val, scale); + return lft + pctX * wid; +} + +var nullMinMax = [null, null]; + +function snapNumX(self, dataMin, dataMax) { + return dataMin == null ? nullMinMax : [dataMin, dataMax]; +} + +var snapTimeX = snapNumX; + +// this ensures that non-temporal/numeric y-axes get multiple-snapped padding added above/below +// TODO: also account for incrs when snapping to ensure top of axis gets a tick & value +function snapNumY(self, dataMin, dataMax) { + return dataMin == null ? nullMinMax : rangeNum(dataMin, dataMax, 0.1, true); +} + +function snapLogY(self, dataMin, dataMax, scale) { + return dataMin == null ? nullMinMax : rangeLog(dataMin, dataMax, self.scales[scale].log, false); +} + +var snapLogX = snapLogY; + +// dim is logical (getClientBoundingRect) pixels, not canvas pixels +function findIncr(min, max, incrs, dim, minSpace) { + var pxPerUnit = dim / (max - min); + + var minDec = (""+floor(min)).length; + + for (var i = 0; i < incrs.length; i++) { + var space = incrs[i] * pxPerUnit; + + var incrDec = incrs[i] < 10 ? fixedDec.get(incrs[i]) : 0; + + if (space >= minSpace && minDec + incrDec < 17) + { return [incrs[i], space]; } + } + + return [0, 0]; +} + +function pxRatioFont(font) { + var fontSize; + font = font.replace(/(\d+)px/, function (m, p1) { return (fontSize = round(p1 * pxRatio)) + 'px'; }); + return [font, fontSize]; +} + +function uPlot(opts, data, then) { + var self = {}; + + var ready = false; + self.status = 0; + + var root = self.root = placeDiv(UPLOT); + + if (opts.id != null) + { root.id = opts.id; } + + addClass(root, opts.class); + + if (opts.title) { + var title = placeDiv(TITLE, root); + title.textContent = opts.title; + } + + var can = placeTag("canvas"); + var ctx = self.ctx = can.getContext("2d"); + + var wrap = placeDiv(WRAP, root); + var under = placeDiv(UNDER, wrap); + wrap.appendChild(can); + var over = placeDiv(OVER, wrap); + + opts = copy(opts); + + (opts.plugins || []).forEach(function (p) { + if (p.opts) + { opts = p.opts(self, opts) || opts; } + }); + + + + var series = self.series = setDefaults(opts.series || [], xSeriesOpts, ySeriesOpts, false); + var axes = self.axes = setDefaults(opts.axes || [], xAxisOpts, yAxisOpts, true); + var scales = self.scales = {}; + + var xScaleKey = series[0].scale; + + function initScale(scaleKey) { + var sc = scales[scaleKey]; + + if (sc == null) { + var scaleOpts = (opts.scales || EMPTY_OBJ)[scaleKey] || EMPTY_OBJ; + + if (scaleOpts.from != null) { + // ensure parent is initialized + initScale(scaleOpts.from); + // dependent scales inherit + scales[scaleKey] = assign({}, scales[scaleOpts.from], scaleOpts); + } + else { + sc = scales[scaleKey] = assign({}, (scaleKey == xScaleKey ? xScaleOpts : yScaleOpts), scaleOpts); + + var isTime = sc.time; + var isLog = sc.distr == 3; + + var rn = sc.range; + + if (scaleKey != xScaleKey && !isArr(rn) && isObj(rn)) { + var cfg = rn; + // this is similar to snapNumY + rn = function (self, dataMin, dataMax) { return dataMin == null ? nullMinMax : rangeNum(dataMin, dataMax, cfg); }; + } + + sc.range = fnOrSelf(rn || (isTime ? snapTimeX : scaleKey == xScaleKey ? (isLog ? snapLogX : snapNumX) : (isLog ? snapLogY : snapNumY))); + + sc.auto = fnOrSelf(sc.auto); + } + } + } + + initScale("x"); + initScale("y"); + + series.forEach(function (s, i) { + initScale(s.scale); + }); + + for (var k in opts.scales) + { initScale(k); } + + var xScaleDistr = scales[xScaleKey].distr; + + var pendScales = {}; + + // explicitly-set initial scales + for (var k$1 in scales) { + var sc = scales[k$1]; + + if (sc.min != null || sc.max != null) + { pendScales[k$1] = {min: sc.min, max: sc.max}; } + } + + var gutters = self.gutters = assign({ + x: round(yAxisOpts.size / 2), + y: round(xAxisOpts.size / 3), + _x: null, + _y: null, + }, opts.gutters); + + gutters.x = fnOrSelf(gutters.x); + gutters.y = fnOrSelf(gutters.y); + gutters._x = gutters.x(self); + gutters._y = gutters.y(self); + +// self.tz = opts.tz || Intl.DateTimeFormat().resolvedOptions().timeZone; + var _tzDate = (opts.tzDate || (function (ts) { return new Date(ts * 1e3); })); + var _fmtDate = (opts.fmtDate || fmtDate); + + var _timeAxisSplits = timeAxisSplits(_tzDate); + var _timeAxisVals = timeAxisVals(_tzDate, timeAxisStamps(_timeAxisStamps, _fmtDate)); + var _timeSeriesVal = timeSeriesVal(_tzDate, timeSeriesStamp(_timeSeriesStamp, _fmtDate)); + + var legend = assign({show: true, live: true}, opts.legend); + var showLegend = legend.show; + + var legendEl; + var legendRows = []; + var legendCols; + var multiValLegend = false; + + if (showLegend) { + legendEl = placeTag("table", LEGEND, root); + + var getMultiVals = series[1] ? series[1].values : null; + multiValLegend = getMultiVals != null; + + if (multiValLegend) { + var head = placeTag("tr", LEGEND_THEAD, legendEl); + placeTag("th", null, head); + legendCols = getMultiVals(self, 1, 0); + + for (var key in legendCols) + { placeTag("th", LEGEND_LABEL, head).textContent = key; } + } + else { + legendCols = {_: 0}; + addClass(legendEl, LEGEND_INLINE); + legend.live && addClass(legendEl, LEGEND_LIVE); + } + } + + function initLegendRow(s, i) { + if (i == 0 && (multiValLegend || !legend.live)) + { return null; } + + var _row = []; + + var row = placeTag("tr", LEGEND_SERIES, legendEl, legendEl.childNodes[i]); + + addClass(row, s.class); + + if (!s.show) + { addClass(row, OFF); } + + var label = placeTag("th", null, row); + + var indic = placeDiv(LEGEND_MARKER, label); + indic.style.borderColor = s.width ? s.stroke : i > 0 && s.points.width ? s.points.stroke : null; + indic.style.backgroundColor = s.fill || null; + + var text = placeDiv(LEGEND_LABEL, label); + text.textContent = s.label; + + if (i > 0) { + onMouse("click", label, function (e) { + if ( cursor._lock) + { return; } + + setSeries(series.indexOf(s), {show: !s.show}, syncOpts.setSeries); + }); + + if (cursorFocus) { + onMouse(mouseenter, label, function (e) { + if (cursor._lock) + { return; } + + setSeries(series.indexOf(s), {focus: true}, syncOpts.setSeries); + }); + } + } + + for (var key in legendCols) { + var v = placeTag("td", LEGEND_VALUE, row); + v.textContent = "--"; + _row.push(v); + } + + return _row; + } + + var mouseListeners = new Map(); + + function onMouse(ev, targ, fn) { + var targListeners = mouseListeners.get(targ) || {}; + var listener = cursor.bind[ev](self, targ, fn); + + if (listener) { + on(ev, targ, targListeners[ev] = listener); + mouseListeners.set(targ, targListeners); + } + } + + function offMouse(ev, targ, fn) { + var targListeners = mouseListeners.get(targ) || {}; + off(ev, targ, targListeners[ev]); + targListeners[ev] = null; + } + + var fullWidCss = 0; + var fullHgtCss = 0; + + var plotWidCss = 0; + var plotHgtCss = 0; + + // plot margins to account for axes + var plotLftCss = 0; + var plotTopCss = 0; + + var plotLft = 0; + var plotTop = 0; + var plotWid = 0; + var plotHgt = 0; + + self.bbox = {}; + + var shouldSetScales = false; + var shouldSetSize = false; + var shouldConvergeSize = false; + var shouldSetCursor = false; + var shouldSetLegend = false; + + function _setSize(width, height) { + if (width != self.width || height != self.height) + { calcSize(width, height); } + + resetYSeries(false); + + shouldConvergeSize = true; + shouldSetSize = true; + shouldSetCursor = true; + shouldSetLegend = true; + commit(); + } + + function calcSize(width, height) { + // log("calcSize()", arguments); + + self.width = fullWidCss = plotWidCss = width; + self.height = fullHgtCss = plotHgtCss = height; + plotLftCss = plotTopCss = 0; + + calcPlotRect(); + calcAxesRects(); + + var bb = self.bbox; + + plotLft = bb[LEFT] = incrRound(plotLftCss * pxRatio, 0.5); + plotTop = bb[TOP] = incrRound(plotTopCss * pxRatio, 0.5); + plotWid = bb[WIDTH] = incrRound(plotWidCss * pxRatio, 0.5); + plotHgt = bb[HEIGHT] = incrRound(plotHgtCss * pxRatio, 0.5); + } + + function convergeSize() { + var converged = false; + + while (!converged) { + var axesConverged = axesCalc(); + var guttersConverged = guttersCalc(); + + converged = axesConverged && guttersConverged; + + if (!converged) { + calcSize(self.width, self.height); + shouldSetSize = true; + } + } + } + + function setSize(ref) { + var width = ref.width; + var height = ref.height; + + _setSize(width, height); + } + + self.setSize = setSize; + + // accumulate axis offsets, reduce canvas width + function calcPlotRect() { + // easements for edge labels + var hasTopAxis = false; + var hasBtmAxis = false; + var hasRgtAxis = false; + var hasLftAxis = false; + + axes.forEach(function (axis, i) { + if (axis.show && axis._show) { + var side = axis.side; + var _size = axis._size; + var isVt = side % 2; + var labelSize = axis.labelSize = (axis.label != null ? (axis.labelSize || 30) : 0); + + var fullSize = _size + labelSize; + + if (fullSize > 0) { + if (isVt) { + plotWidCss -= fullSize; + + if (side == 3) { + plotLftCss += fullSize; + hasLftAxis = true; + } + else + { hasRgtAxis = true; } + } + else { + plotHgtCss -= fullSize; + + if (side == 0) { + plotTopCss += fullSize; + hasTopAxis = true; + } + else + { hasBtmAxis = true; } + } + } + } + }); + + // hz gutters + if (hasTopAxis || hasBtmAxis) { + if (!hasRgtAxis) + { plotWidCss -= gutters._x; } + if (!hasLftAxis) { + plotWidCss -= gutters._x; + plotLftCss += gutters._x; + } + } + + // vt gutters + if (hasLftAxis || hasRgtAxis) { + if (!hasBtmAxis) + { plotHgtCss -= gutters._y; } + if (!hasTopAxis) { + plotHgtCss -= gutters._y; + plotTopCss += gutters._y; + } + } + } + + function calcAxesRects() { + // will accum + + var off1 = plotLftCss + plotWidCss; + var off2 = plotTopCss + plotHgtCss; + // will accum - + var off3 = plotLftCss; + var off0 = plotTopCss; + + function incrOffset(side, size) { + + switch (side) { + case 1: off1 += size; return off1 - size; + case 2: off2 += size; return off2 - size; + case 3: off3 -= size; return off3 + size; + case 0: off0 -= size; return off0 + size; + } + } + + axes.forEach(function (axis, i) { + if (axis.show && axis._show) { + var side = axis.side; + + axis._pos = incrOffset(side, axis._size); + + if (axis.label != null) + { axis._lpos = incrOffset(side, axis.labelSize); } + } + }); + } + + var cursor = (self.cursor = assign({}, cursorOpts, opts.cursor)); + + (cursor._lock = false); + (cursor.points.show = fnOrSelf(cursor.points.show)); + + var focus = self.focus = assign({}, opts.focus || {alpha: 0.3}, cursor.focus); + var cursorFocus = focus.prox >= 0; + + // series-intersection markers + var cursorPts = [null]; + + function initCursorPt(s, si) { + if (si > 0) { + var pt = cursor.points.show(self, si); + + if (pt) { + addClass(pt, CURSOR_PT); + addClass(pt, s.class); + trans(pt, -10, -10, plotWidCss, plotHgtCss); + over.insertBefore(pt, cursorPts[si]); + + return pt; + } + } + } + + function initSeries(s, i) { + var isTime = scales[s.scale].time; + + var sv = s.value; + s.value = isTime ? (isStr(sv) ? timeSeriesVal(_tzDate, timeSeriesStamp(sv, _fmtDate)) : sv || _timeSeriesVal) : sv || numSeriesVal; + s.label = s.label || (isTime ? timeSeriesLabel : numSeriesLabel); + + if (i > 0) { + s.width = s.width == null ? 1 : s.width; + s.paths = s.paths || ( buildPaths); + s.fillTo = s.fillTo || seriesFillTo; + var _ptDia = ptDia(s.width, 1); + s.points = assign({}, { + size: _ptDia, + width: max(1, _ptDia * .2), + stroke: s.stroke, + space: _ptDia * 2, + }, s.points); + s.points.show = fnOrSelf(s.points.show); + s._paths = null; + } + + if (showLegend) + { legendRows.splice(i, 0, initLegendRow(s, i)); } + + if ( cursor.show) { + var pt = initCursorPt(s, i); + pt && cursorPts.splice(i, 0, pt); + } + } + + function addSeries(opts, si) { + si = si == null ? series.length : si; + + opts = setDefault(opts, si, xSeriesOpts, ySeriesOpts); + series.splice(si, 0, opts); + initSeries(series[si], si); + } + + self.addSeries = addSeries; + + function delSeries(i) { + series.splice(i, 1); + showLegend && legendRows.splice(i, 1)[0][0].parentNode.remove(); + cursorPts.length > 1 && cursorPts.splice(i, 1)[0].remove(); + + // TODO: de-init no-longer-needed scales? + } + + self.delSeries = delSeries; + + series.forEach(initSeries); + + function initAxis(axis, i) { + axis._show = axis.show; + + if (axis.show) { + var isVt = axis.side % 2; + + var sc = scales[axis.scale]; + + // this can occur if all series specify non-default scales + if (sc == null) { + axis.scale = isVt ? series[1].scale : xScaleKey; + sc = scales[axis.scale]; + } + + // also set defaults for incrs & values based on axis distr + var isTime = sc.time; + + axis.size = fnOrSelf(axis.size); + axis.space = fnOrSelf(axis.space); + axis.rotate = fnOrSelf(axis.rotate); + axis.incrs = fnOrSelf(axis.incrs || ( sc.distr == 2 ? wholeIncrs : (isTime ? timeIncrs : numIncrs))); + axis.splits = fnOrSelf(axis.splits || (isTime && sc.distr == 1 ? _timeAxisSplits : sc.distr == 3 ? logAxisSplits : numAxisSplits)); + + var av = axis.values; + axis.values = ( + isTime ? ( + isArr(av) ? + timeAxisVals(_tzDate, timeAxisStamps(av, _fmtDate)) : + isStr(av) ? + timeAxisVal(_tzDate, av) : + av || _timeAxisVals + ) : av || numAxisVals + ); + + axis.filter = fnOrSelf(axis.filter || ( sc.distr == 3 ? logAxisValsFilt : retArg1)); + + axis.font = pxRatioFont(axis.font); + axis.labelFont = pxRatioFont(axis.labelFont); + + axis._size = axis.size(self, null, i); + + axis._space = + axis._rotate = + axis._incrs = + axis._found = // foundIncrSpace + axis._splits = + axis._values = null; + } + } + + // set axis defaults + axes.forEach(initAxis); + + var dataLen; + var dataIsGap; + + // rendered data window + var i0 = null; + var i1 = null; + var idxs = series[0].idxs; + + var data0 = null; + + var viaAutoScaleX = false; + + function setData(_data, _resetScales) { + if (!isArr(_data) && isObj(_data)) { + dataIsGap = _data.isGap; + _data = _data.data; + } + + _data = _data || []; + _data[0] = _data[0] || []; + + self.data = _data; + data = _data.slice(); + data0 = data[0]; + dataLen = data0.length; + + if (xScaleDistr == 2) + { data[0] = data0.map(function (v, i) { return i; }); } + + resetYSeries(true); + + fire("setData"); + + if (_resetScales !== false) { + var xsc = scales[xScaleKey]; + + if (xsc.auto(self, viaAutoScaleX)) + { autoScaleX(); } + else + { _setScale(xScaleKey, xsc.min, xsc.max); } + + shouldSetCursor = true; + shouldSetLegend = true; + commit(); + } + } + + self.setData = setData; + + function autoScaleX() { + var assign, assign$1; + + viaAutoScaleX = true; + + var _min, _max; + + if (dataLen > 0) { + i0 = idxs[0] = 0; + i1 = idxs[1] = dataLen - 1; + + _min = data[0][i0]; + _max = data[0][i1]; + + if (xScaleDistr == 2) { + _min = i0; + _max = i1; + } + else if (dataLen == 1) { + if (xScaleDistr == 3) + { (assign = rangeLog(_min, _min, scales[xScaleKey].log, false), _min = assign[0], _max = assign[1]); } + else if (scales[xScaleKey].time) + { _max = _min + 86400; } + else + { (assign$1 = rangeNum(_min, _max, 0.1, true), _min = assign$1[0], _max = assign$1[1]); } + } + } + else { + i0 = idxs[0] = _min = null; + i1 = idxs[1] = _max = null; + } + + _setScale(xScaleKey, _min, _max); + + viaAutoScaleX = false; + } + + function setCtxStyle(stroke, width, dash, fill) { + ctx.strokeStyle = stroke || transparent; + ctx.lineWidth = width; + ctx.lineJoin = "round"; + ctx.setLineDash(dash || []); + ctx.fillStyle = fill || transparent; + } + + function setScales() { + // log("setScales()", arguments); + + // wip scales + var wipScales = copy(scales); + + for (var k in wipScales) { + var wsc = wipScales[k]; + var psc = pendScales[k]; + + if (psc != null && psc.min != null) { + assign(wsc, psc); + + // explicitly setting the x-scale invalidates everything (acts as redraw) + if (k == xScaleKey) + { resetYSeries(true); } + } + else if (k != xScaleKey) { + if (dataLen == 0 && wsc.from == null) { + var minMax = wsc.range(self, null, null, k); + wsc.min = minMax[0]; + wsc.max = minMax[1]; + } + else { + wsc.min = inf; + wsc.max = -inf; + } + } + } + + if (dataLen > 0) { + // pre-range y-scales from y series' data values + series.forEach(function (s, i) { + var k = s.scale; + var wsc = wipScales[k]; + var psc = pendScales[k]; + + if (i == 0) { + var minMax = wsc.range(self, wsc.min, wsc.max, k); + + wsc.min = minMax[0]; + wsc.max = minMax[1]; + + i0 = closestIdx(wsc.min, data[0]); + i1 = closestIdx(wsc.max, data[0]); + + // closest indices can be outside of view + if (data[0][i0] < wsc.min) + { i0++; } + if (data[0][i1] > wsc.max) + { i1--; } + + s.min = data0[i0]; + s.max = data0[i1]; + } + else if (s.show && s.auto && wsc.auto(self, viaAutoScaleX) && (psc == null || psc.min == null)) { + // only run getMinMax() for invalidated series data, else reuse + var minMax$1 = s.min == null ? getMinMax(data[i], i0, i1, s.sorted) : [s.min, s.max]; + + // initial min/max + wsc.min = min(wsc.min, s.min = minMax$1[0]); + wsc.max = max(wsc.max, s.max = minMax$1[1]); + } + + s.idxs[0] = i0; + s.idxs[1] = i1; + }); + + // range independent scales + for (var k$1 in wipScales) { + var wsc$1 = wipScales[k$1]; + var psc$1 = pendScales[k$1]; + + if (wsc$1.from == null && (psc$1 == null || psc$1.min == null)) { + var minMax$1 = wsc$1.range( + self, + wsc$1.min == inf ? null : wsc$1.min, + wsc$1.max == -inf ? null : wsc$1.max, + k$1 + ); + wsc$1.min = minMax$1[0]; + wsc$1.max = minMax$1[1]; + } + } + } + + // range dependent scales + for (var k$2 in wipScales) { + var wsc$2 = wipScales[k$2]; + + if (wsc$2.from != null) { + var base = wipScales[wsc$2.from]; + var minMax$2 = wsc$2.range(self, base.min, base.max, k$2); + wsc$2.min = minMax$2[0]; + wsc$2.max = minMax$2[1]; + } + } + + var changed = {}; + var anyChanged = false; + + for (var k$3 in wipScales) { + var wsc$3 = wipScales[k$3]; + var sc = scales[k$3]; + + if (sc.min != wsc$3.min || sc.max != wsc$3.max) { + sc.min = wsc$3.min; + sc.max = wsc$3.max; + changed[k$3] = anyChanged = true; + } + } + + if (anyChanged) { + // invalidate paths of all series on changed scales + series.forEach(function (s) { + if (changed[s.scale]) + { s._paths = null; } + }); + + for (var k$4 in changed) { + shouldConvergeSize = true; + fire("setScale", k$4); + } + + if ( cursor.show) + { shouldSetCursor = true; } + } + + for (var k$5 in pendScales) + { pendScales[k$5] = null; } + } + + // TODO: drawWrap(si, drawPoints) (save, restore, translate, clip) + + function drawPoints(si) { + // log("drawPoints()", arguments); + + var s = series[si]; + var p = s.points; + + var width = roundDec(p.width * pxRatio, 3); + var offset = (width % 2) / 2; + var isStroked = p.width > 0; + + var rad = (p.size - p.width) / 2 * pxRatio; + var dia = roundDec(rad * 2, 3); + + ctx.translate(offset, offset); + + ctx.save(); + + ctx.beginPath(); + ctx.rect( + plotLft - dia, + plotTop - dia, + plotWid + dia * 2, + plotHgt + dia * 2 + ); + ctx.clip(); + + ctx.globalAlpha = s.alpha; + + var path = new Path2D(); + + for (var pi = i0; pi <= i1; pi++) { + if (data[si][pi] != null) { + var x = round(getXPos(data[0][pi], scales[xScaleKey], plotWid, plotLft)); + var y = round(getYPos(data[si][pi], scales[s.scale], plotHgt, plotTop)); + + path.moveTo(x + rad, y); + path.arc(x, y, rad, 0, PI * 2); + } + } + + setCtxStyle( + p.stroke, + width, + null, + p.fill || (isStroked ? "#fff" : s.stroke) + ); + + ctx.fill(path); + isStroked && ctx.stroke(path); + + ctx.globalAlpha = 1; + + ctx.restore(); + + ctx.translate(-offset, -offset); + } + + // grabs the nearest indices with y data outside of x-scale limits + function getOuterIdxs(ydata) { + var _i0 = clamp(i0 - 1, 0, dataLen - 1); + var _i1 = clamp(i1 + 1, 0, dataLen - 1); + + while (ydata[_i0] == null && _i0 > 0) + { _i0--; } + + while (ydata[_i1] == null && _i1 < dataLen - 1) + { _i1++; } + + return [_i0, _i1]; + } + + var dir = 1; + + function drawSeries() { + // path building loop must be before draw loop to ensure that all bands are fully constructed + series.forEach(function (s, i) { + if (i > 0 && s.show && s._paths == null) { + var _idxs = getOuterIdxs(data[i]); + s._paths = s.paths(self, i, _idxs[0], _idxs[1]); + } + }); + + series.forEach(function (s, i) { + if (i > 0 && s.show) { + if (s._paths) + { drawPath(i); } + + if (s.points.show(self, i, i0, i1)) + { drawPoints(i); } + + fire("drawSeries", i); + } + }); + } + + function drawPath(si) { + var s = series[si]; + + if (dir == 1) { + var ref = s._paths; + var stroke = ref.stroke; + var fill = ref.fill; + var clip = ref.clip; + var width = roundDec(s[WIDTH] * pxRatio, 3); + var offset = (width % 2) / 2; + + setCtxStyle(s.stroke, width, s.dash, s.fill); + + ctx.globalAlpha = s.alpha; + + ctx.translate(offset, offset); + + ctx.save(); + + var lft = plotLft, + top = plotTop, + wid = plotWid, + hgt = plotHgt; + + var halfWid = width * pxRatio / 2; + + if (s.min == 0) + { hgt += halfWid; } + + if (s.max == 0) { + top -= halfWid; + hgt += halfWid; + } + + ctx.beginPath(); + ctx.rect(lft, top, wid, hgt); + ctx.clip(); + + if (clip != null) + { ctx.clip(clip); } + + if (s.band) { + ctx.fill(stroke); + width && ctx.stroke(stroke); + } + else { + width && ctx.stroke(stroke); + + if (s.fill != null) + { ctx.fill(fill); } + } + + ctx.restore(); + + ctx.translate(-offset, -offset); + + ctx.globalAlpha = 1; + } + + if (s.band) + { dir *= -1; } + } + + function buildClip(is, gaps, nullHead, nullTail) { + var s = series[is]; + + var clip = null; + + // create clip path (invert gaps and non-gaps) + if (gaps.length > 0 && !s.spanGaps) { + clip = new Path2D(); + + var prevGapEnd = plotLft; + + for (var i = 0; i < gaps.length; i++) { + var g = gaps[i]; + + clip.rect(prevGapEnd, plotTop, g[0] - prevGapEnd, plotTop + plotHgt); + + prevGapEnd = g[1]; + } + + clip.rect(prevGapEnd, plotTop, plotLft + plotWid - prevGapEnd, plotTop + plotHgt); + } + + return clip; + } + + function addGap(gaps, fromX, toX) { + if (toX > fromX) { + var prevGap = gaps[gaps.length - 1]; + + if (prevGap && prevGap[0] == fromX) // TODO: gaps must be encoded at stroke widths? + { prevGap[1] = toX; } + else + { gaps.push([fromX, toX]); } + } + } + + function nonNullIdx(data, _i0, _i1, dir) { + for (var i = dir == 1 ? _i0 : _i1; i >= _i0 && i <= _i1; i += dir) { + if (data[i] != null) + { return i; } + } + + return -1; + } + + function buildPaths(self, is, _i0, _i1) { + var s = series[is]; + var isGap = dataIsGap || s.isGap; + + var xdata = data[0]; + var ydata = data[is]; + var scaleX = scales[xScaleKey]; + var scaleY = scales[s.scale]; + + var _paths = dir == 1 ? {stroke: new Path2D(), fill: null, clip: null} : series[is-1]._paths; + var stroke = _paths.stroke; + var width = roundDec(s[WIDTH] * pxRatio, 3); + + var minY = inf, + maxY = -inf, + outY, outX; + + // todo: don't build gaps on dir = -1 pass + var gaps = []; + + var accX = round(getXPos(xdata[dir == 1 ? _i0 : _i1], scaleX, plotWid, plotLft)); + var accGaps = false; + + // data edges + var lftIdx = nonNullIdx(ydata, _i0, _i1, 1); + var rgtIdx = nonNullIdx(ydata, _i0, _i1, -1); + var lftX = incrRound(getXPos(xdata[lftIdx], scaleX, plotWid, plotLft), 0.5); + var rgtX = incrRound(getXPos(xdata[rgtIdx], scaleX, plotWid, plotLft), 0.5); + + if (lftX > plotLft) + { addGap(gaps, plotLft, lftX); } + + // the moves the shape edge outside the canvas so stroke doesnt bleed in + if (s.band && dir == 1) + { stroke.lineTo(lftX - width * 2, round(getYPos(ydata[_i0], scaleY, plotHgt, plotTop))); } + + for (var i = dir == 1 ? _i0 : _i1; i >= _i0 && i <= _i1; i += dir) { + var x = round(getXPos(xdata[i], scaleX, plotWid, plotLft)); + + if (x == accX) { + if (ydata[i] != null) { + outY = round(getYPos(ydata[i], scaleY, plotHgt, plotTop)); + minY = min(outY, minY); + maxY = max(outY, maxY); + } + else if (!accGaps && isGap(self, is, i)) + { accGaps = true; } + } + else { + var _addGap = false; + + if (minY != inf) { + stroke.lineTo(accX, minY); + stroke.lineTo(accX, maxY); + stroke.lineTo(accX, outY); + outX = accX; + } + else if (accGaps) { + _addGap = true; + accGaps = false; + } + + if (ydata[i] != null) { + outY = round(getYPos(ydata[i], scaleY, plotHgt, plotTop)); + stroke.lineTo(x, outY); + minY = maxY = outY; + + // prior pixel can have data but still start a gap if ends with null + if (x - accX > 1 && ydata[i-1] == null && isGap(self, is, i-1)) + { _addGap = true; } + } + else { + minY = inf; + maxY = -inf; + + if (!accGaps && isGap(self, is, i)) + { accGaps = true; } + } + + _addGap && addGap(gaps, outX, x); + + accX = x; + } + } + + if (rgtX < plotLft + plotWid) + { addGap(gaps, rgtX, plotLft + plotWid); } + + if (s.band) { + var _x, _iy, ydata2; + + // the moves the shape edge outside the canvas so stroke doesnt bleed in + if (dir == 1) { + _x = rgtX + width * 2; + _iy = rgtIdx; + ydata2 = data[is + 1]; + } + else { + _x = lftX - width * 2; + _iy = lftIdx; + ydata2 = data[is - 1]; + } + + stroke.lineTo(_x, round(getYPos(ydata[_iy], scaleY, plotHgt, plotTop))); + stroke.lineTo(_x, round(getYPos(ydata2[_iy], scaleY, plotHgt, plotTop))); + } + + if (dir == 1) { + _paths.clip = buildClip(is, gaps, ydata[_i0] == null, ydata[_i1] == null); + + if (s.fill != null) { + var fill = _paths.fill = new Path2D(stroke); + + var fillTo = round(getYPos(s.fillTo(self, is, s.min, s.max), scaleY, plotHgt, plotTop)); + fill.lineTo(rgtX, fillTo); + fill.lineTo(lftX, fillTo); + } + } + + if (s.band) + { dir *= -1; } + + return _paths; + } + + self.paths = buildPaths; + + function getIncrSpace(axisIdx, min, max, fullDim) { + var axis = axes[axisIdx]; + + var incrSpace; + + if (fullDim <= 0) + { incrSpace = [0, 0]; } + else { + var minSpace = axis._space = axis.space(self, axisIdx, min, max, fullDim); + var incrs = axis._incrs = axis.incrs(self, axisIdx, min, max, fullDim, minSpace); + incrSpace = axis._found = findIncr(min, max, incrs, fullDim, minSpace); + } + + return incrSpace; + } + + function drawOrthoLines(offs, filts, ori, side, pos0, len, width, stroke, dash) { + var offset = (width % 2) / 2; + + ctx.translate(offset, offset); + + setCtxStyle(stroke, width, dash); + + ctx.beginPath(); + + var x0, y0, x1, y1, pos1 = pos0 + (side == 0 || side == 3 ? -len : len); + + if (ori == 0) { + y0 = pos0; + y1 = pos1; + } + else { + x0 = pos0; + x1 = pos1; + } + + offs.forEach(function (off, i) { + if (filts[i] == null) + { return; } + + if (ori == 0) + { x0 = x1 = off; } + else + { y0 = y1 = off; } + + ctx.moveTo(x0, y0); + ctx.lineTo(x1, y1); + }); + + ctx.stroke(); + + ctx.translate(-offset, -offset); + } + + function axesCalc() { + // log("axesCalc()", arguments); + + var converged = true; + + axes.forEach(function (axis, i) { + if (!axis.show) + { return; } + + var scale = scales[axis.scale]; + + if (scale.min == null) { + if (axis._show) { + converged = false; + axis._show = false; + resetYSeries(false); + } + return; + } + else { + if (!axis._show) { + converged = false; + axis._show = true; + resetYSeries(false); + } + } + + var side = axis.side; + var ori = side % 2; + + var min = scale.min; + var max = scale.max; // // should this toggle them ._show = false + + var ref = getIncrSpace(i, min, max, ori == 0 ? plotWidCss : plotHgtCss); + var _incr = ref[0]; + var _space = ref[1]; + + if (_space == 0) + { return; } + + // if we're using index positions, force first tick to match passed index + var forceMin = scale.distr == 2; + + var _splits = axis._splits = axis.splits(self, i, min, max, _incr, _space, forceMin); + + // tick labels + // BOO this assumes a specific data/series + var splits = scale.distr == 2 ? _splits.map(function (i) { return data0[i]; }) : _splits; + var incr = scale.distr == 2 ? data0[_splits[1]] - data0[_splits[0]] : _incr; + + var values = axis._values = axis.values(self, axis.filter(self, splits, i, _space, incr), i, _space, incr); + + // rotating of labels only supported on bottom x axis + axis._rotate = side == 2 ? axis.rotate(self, values, i, _space) : 0; + + var oldSize = axis._size; + + axis._size = axis.size(self, values, i); + + if (oldSize != null && axis._size != oldSize) // ready && ? + { converged = false; } + }); + + return converged; + } + + function guttersCalc() { + var converged = true; + + var _x = gutters._x; + var _y = gutters._y; + + gutters._x = gutters.x(self); + gutters._y = gutters.y(self); + + if (gutters._x != _x || gutters._y != _y) + { converged = false; } + + return converged; + } + + function drawAxesGrid() { + axes.forEach(function (axis, i) { + if (!axis.show || !axis._show) + { return; } + + var scale = scales[axis.scale]; + var side = axis.side; + var ori = side % 2; + + var getPos = ori == 0 ? getXPos : getYPos; + var plotDim = ori == 0 ? plotWid : plotHgt; + var plotOff = ori == 0 ? plotLft : plotTop; + + var axisGap = round(axis.gap * pxRatio); + + var ticks = axis.ticks; + var tickSize = ticks.show ? round(ticks.size * pxRatio) : 0; + + var ref = axis._found; + var _incr = ref[0]; + var _space = ref[1]; + var _splits = axis._splits; + + // tick labels + // BOO this assumes a specific data/series + var splits = scale.distr == 2 ? _splits.map(function (i) { return data0[i]; }) : _splits; + var incr = scale.distr == 2 ? data0[_splits[1]] - data0[_splits[0]] : _incr; + + // rotating of labels only supported on bottom x axis + var angle = axis._rotate * -PI/180; + + var basePos = round(axis._pos * pxRatio); + var shiftAmt = tickSize + axisGap; + var shiftDir = ori == 0 && side == 0 || ori == 1 && side == 3 ? -1 : 1; + var finalPos = basePos + shiftAmt * shiftDir; + var y = ori == 0 ? finalPos : 0; + var x = ori == 1 ? finalPos : 0; + + ctx.font = axis.font[0]; + ctx.fillStyle = axis.stroke || hexBlack; // rgba? + ctx.textAlign = axis.align == 1 ? LEFT : + axis.align == 2 ? RIGHT : + angle > 0 ? LEFT : + angle < 0 ? RIGHT : + ori == 0 ? "center" : side == 3 ? RIGHT : LEFT; + ctx.textBaseline = angle || + ori == 1 ? "middle" : side == 2 ? TOP : BOTTOM; + + var lineHeight = axis.font[1] * lineMult; + + var canOffs = _splits.map(function (val) { return round(getPos(val, scale, plotDim, plotOff)); }); + + axis._values.forEach(function (val, i) { + if (val == null) + { return; } + + if (ori == 0) + { x = canOffs[i]; } + else + { y = canOffs[i]; } + + (""+val).split(/\n/gm).forEach(function (text, j) { + if (angle) { + ctx.save(); + ctx.translate(x, y + j * lineHeight); + ctx.rotate(angle); + ctx.fillText(text, 0, 0); + ctx.restore(); + } + else + { ctx.fillText(text, x, y + j * lineHeight); } + }); + }); + + // axis label + if (axis.label) { + ctx.save(); + + var baseLpos = round(axis._lpos * pxRatio); + + if (ori == 1) { + x = y = 0; + + ctx.translate( + baseLpos, + round(plotTop + plotHgt / 2) + ); + ctx.rotate((side == 3 ? -PI : PI) / 2); + + } + else { + x = round(plotLft + plotWid / 2); + y = baseLpos; + } + + ctx.font = axis.labelFont[0]; + // ctx.fillStyle = axis.labelStroke || hexBlack; // rgba? + ctx.textAlign = "center"; + ctx.textBaseline = side == 2 ? TOP : BOTTOM; + + ctx.fillText(axis.label, x, y); + + ctx.restore(); + } + + // ticks + if (ticks.show) { + drawOrthoLines( + canOffs, + ticks.filter(self, splits, i, _space, incr), + ori, + side, + basePos, + tickSize, + roundDec(ticks[WIDTH] * pxRatio, 3), + ticks.stroke + ); + } + + // grid + var grid = axis.grid; + + if (grid.show) { + drawOrthoLines( + canOffs, + grid.filter(self, splits, i, _space, incr), + ori, + ori == 0 ? 2 : 1, + ori == 0 ? plotTop : plotLft, + ori == 0 ? plotHgt : plotWid, + roundDec(grid[WIDTH] * pxRatio, 3), + grid.stroke, + grid.dash + ); + } + }); + + fire("drawAxes"); + } + + function resetYSeries(minMax) { + // log("resetYSeries()", arguments); + + series.forEach(function (s, i) { + if (i > 0) { + s._paths = null; + + if (minMax) { + s.min = null; + s.max = null; + } + } + }); + } + + var queuedCommit = false; + + // could do rAF instead of microTask, or Promose.resolve().then() + function commit() { + if (!queuedCommit) { + microTask(_commit); + queuedCommit = true; + } + } + + function _commit() { + // log("_commit()", arguments); + + if (shouldSetScales) { + setScales(); + shouldSetScales = false; + } + + if (shouldConvergeSize) { + convergeSize(); + shouldConvergeSize = false; + } + + if (shouldSetSize) { + setStylePx(under, LEFT, plotLftCss); + setStylePx(under, TOP, plotTopCss); + setStylePx(under, WIDTH, plotWidCss); + setStylePx(under, HEIGHT, plotHgtCss); + + setStylePx(over, LEFT, plotLftCss); + setStylePx(over, TOP, plotTopCss); + setStylePx(over, WIDTH, plotWidCss); + setStylePx(over, HEIGHT, plotHgtCss); + + setStylePx(wrap, WIDTH, fullWidCss); + setStylePx(wrap, HEIGHT, fullHgtCss); + + can[WIDTH] = round(fullWidCss * pxRatio); + can[HEIGHT] = round(fullHgtCss * pxRatio); + + syncRect(); + + fire("setSize"); + + shouldSetSize = false; + } + + // if (shouldSetSelect) { + // TODO: update .u-select metrics (if visible) + // setStylePx(selectDiv, TOP, select[TOP] = 0); + // setStylePx(selectDiv, LEFT, select[LEFT] = 0); + // setStylePx(selectDiv, WIDTH, select[WIDTH] = 0); + // setStylePx(selectDiv, HEIGHT, select[HEIGHT] = 0); + // shouldSetSelect = false; + // } + + if ( cursor.show && shouldSetCursor) { + updateCursor(); + shouldSetCursor = false; + } + + // if (true && legend.show && legend.live && shouldSetLegend) {} + + if (fullWidCss > 0 && fullHgtCss > 0) { + ctx.clearRect(0, 0, can[WIDTH], can[HEIGHT]); + fire("drawClear"); + drawAxesGrid(); + dataLen > 0 && drawSeries(); + fire("draw"); + } + + if (!ready) { + ready = true; + self.status = 1; + + fire("ready"); + } + + queuedCommit = false; + } + + self.redraw = function (rebuildPaths) { + if (rebuildPaths !== false) + { _setScale(xScaleKey, scales[xScaleKey].min, scales[xScaleKey].max); } + else + { commit(); } + }; + + // redraw() => setScale('x', scales.x.min, scales.x.max); + + // explicit, never re-ranged (is this actually true? for x and y) + function setScale(key, opts) { + var sc = scales[key]; + + if (sc.from == null) { + if (dataLen == 0) { + var minMax = sc.range(self, opts.min, opts.max, key); + opts.min = minMax[0]; + opts.max = minMax[1]; + } + + if (dataLen > 1 && opts.min != null && opts.max != null && opts.max - opts.min < 1e-16) + { return; } + + if (key == xScaleKey) { + if (sc.distr == 2 && dataLen > 0) { + opts.min = closestIdx(opts.min, data[0]); + opts.max = closestIdx(opts.max, data[0]); + } + } + + // log("setScale()", arguments); + + pendScales[key] = opts; + + shouldSetScales = true; + commit(); + } + } + + self.setScale = setScale; + +// INTERACTION + + var vt; + var hz; + + // starting position before cursor.move + var rawMouseLeft0; + var rawMouseTop0; + + // starting position + var mouseLeft0; + var mouseTop0; + + // current position before cursor.move + var rawMouseLeft1; + var rawMouseTop1; + + // current position + var mouseLeft1; + var mouseTop1; + + var dragging = false; + + var drag = cursor.drag; + + var dragX = drag.x; + var dragY = drag.y; + + if ( cursor.show) { + if (cursor.x) { + mouseLeft1 = cursor.left; + vt = placeDiv(CURSOR_X, over); + } + + if (cursor.y) { + mouseTop1 = cursor.top; + hz = placeDiv(CURSOR_Y, over); + } + } + + var select = self.select = assign({ + show: true, + over: true, + left: 0, + width: 0, + top: 0, + height: 0, + }, opts.select); + + var selectDiv = select.show ? placeDiv(SELECT, select.over ? over : under) : null; + + function setSelect(opts, _fire) { + if (select.show) { + for (var prop in opts) + { setStylePx(selectDiv, prop, select[prop] = opts[prop]); } + + _fire !== false && fire("setSelect"); + } + } + + self.setSelect = setSelect; + + function toggleDOM(i, onOff) { + var s = series[i]; + var label = showLegend ? legendRows[i][0].parentNode : null; + + if (s.show) + { label && remClass(label, OFF); } + else { + label && addClass(label, OFF); + cursorPts.length > 1 && trans(cursorPts[i], -10, -10, plotWidCss, plotHgtCss); + } + } + + function _setScale(key, min, max) { + setScale(key, {min: min, max: max}); + } + + function setSeries(i, opts, pub) { + // log("setSeries()", arguments); + + var s = series[i]; + + // will this cause redundant commit() if both show and focus are set? + if (opts.focus != null) + { setFocus(i); } + + if (opts.show != null) { + s.show = opts.show; + toggleDOM(i, opts.show); + + if (s.band) { + // not super robust, will break if two bands are adjacent + var ip = series[i+1] && series[i+1].band ? i+1 : i-1; + series[ip].show = s.show; + toggleDOM(ip, opts.show); + } + + _setScale(s.scale, null, null); + commit(); + } + + fire("setSeries", i, opts); + + pub && sync.pub("setSeries", self, i, opts); + } + + self.setSeries = setSeries; + + function _alpha(i, value) { + series[i].alpha = value; + + if ( cursor.show && cursorPts[i]) + { cursorPts[i].style.opacity = value; } + + if ( showLegend && legendRows[i]) + { legendRows[i][0].parentNode.style.opacity = value; } + } + + function _setAlpha(i, value) { + var s = series[i]; + + _alpha(i, value); + + if (s.band) { + // not super robust, will break if two bands are adjacent + var ip = series[i+1].band ? i+1 : i-1; + _alpha(ip, value); + } + } + + // y-distance + var closestDist; + var closestSeries; + var focusedSeries; + + function setFocus(i) { + if (i != focusedSeries) { + // log("setFocus()", arguments); + + series.forEach(function (s, i2) { + _setAlpha(i2, i == null || i2 == 0 || i2 == i ? 1 : focus.alpha); + }); + + focusedSeries = i; + commit(); + } + } + + if (showLegend && cursorFocus) { + on(mouseleave, legendEl, function (e) { + if (cursor._lock) + { return; } + setSeries(null, {focus: false}, syncOpts.setSeries); + updateCursor(); + }); + } + + function scaleValueAtPos(pos, scale) { + var dim = plotWidCss; + + if (scale != xScaleKey) { + dim = plotHgtCss; + pos = dim - pos; + } + + var pct = pos / dim; + + var sc = scales[scale], + _min = sc.min, + _max = sc.max; + + if (sc.distr == 3) { + _min = log10(_min); + _max = log10(_max); + return pow(10, _min + (_max - _min) * pct); + } + else + { return _min + (_max - _min) * pct; } + } + + function closestIdxFromXpos(pos) { + var v = scaleValueAtPos(pos, xScaleKey); + return closestIdx(v, data[0], i0, i1); + } + + self.valToIdx = function (val) { return closestIdx(val, data[0]); }; + self.posToIdx = closestIdxFromXpos; + self.posToVal = scaleValueAtPos; + self.valToPos = function (val, scale, can) { return ( + scale == xScaleKey ? + getXPos(val, scales[scale], + can ? plotWid : plotWidCss, + can ? plotLft : 0 + ) : + getYPos(val, scales[scale], + can ? plotHgt : plotHgtCss, + can ? plotTop : 0 + ) + ); }; + + // defers calling expensive functions + function batch(fn) { + fn(self); + commit(); + } + + self.batch = batch; + + (self.setCursor = function (opts) { + mouseLeft1 = opts.left; + mouseTop1 = opts.top; + // assign(cursor, opts); + updateCursor(); + }); + + var cursorRaf = 0; + + function updateCursor(ts, src) { + var assign; + + // ts == null && log("updateCursor()", arguments); + + cursorRaf = 0; + + rawMouseLeft1 = mouseLeft1; + rawMouseTop1 = mouseTop1; + + (assign = cursor.move(self, mouseLeft1, mouseTop1), mouseLeft1 = assign[0], mouseTop1 = assign[1]); + + if (cursor.show) { + cursor.x && trans(vt, round(mouseLeft1), 0, plotWidCss, plotHgtCss); + cursor.y && trans(hz, 0, round(mouseTop1), plotWidCss, plotHgtCss); + } + + var idx; + + // when zooming to an x scale range between datapoints the binary search + // for nearest min/max indices results in this condition. cheap hack :D + var noDataInRange = i0 > i1; + + closestDist = inf; + + // if cursor hidden, hide points & clear legend vals + if (mouseLeft1 < 0 || dataLen == 0 || noDataInRange) { + idx = null; + + for (var i = 0; i < series.length; i++) { + if (i > 0) { + cursorPts.length > 1 && trans(cursorPts[i], -10, -10, plotWidCss, plotHgtCss); + } + + if (showLegend && legend.live) { + if (i == 0 && multiValLegend) + { continue; } + + for (var j = 0; j < legendRows[i].length; j++) + { legendRows[i][j][firstChild].nodeValue = '--'; } + } + } + + if (cursorFocus) + { setSeries(null, {focus: true}, syncOpts.setSeries); } + } + else { + // let pctY = 1 - (y / rect[HEIGHT]); + + var valAtPos = scaleValueAtPos(mouseLeft1, xScaleKey); + + idx = closestIdx(valAtPos, data[0], i0, i1); + + var scX = scales[xScaleKey]; + + var xPos = roundDec(getXPos(data[0][idx], scX, plotWidCss, 0), 3); + + for (var i$1 = 0; i$1 < series.length; i$1++) { + var s = series[i$1]; + + var idx2 = cursor.dataIdx(self, i$1, idx, valAtPos); + var xPos2 = idx2 == idx ? xPos : roundDec(getXPos(data[0][idx2], scX, plotWidCss, 0), 3); + + if (i$1 > 0 && s.show) { + var valAtIdx = data[i$1][idx2]; + + var yPos = valAtIdx == null ? -10 : roundDec(getYPos(valAtIdx, scales[s.scale], plotHgtCss, 0), 3); + + if (yPos > 0) { + var dist = abs(yPos - mouseTop1); + + if (dist <= closestDist) { + closestDist = dist; + closestSeries = i$1; + } + } + + cursorPts.length > 1 && trans(cursorPts[i$1], xPos2, yPos, plotWidCss, plotHgtCss); + } + + if (showLegend && legend.live) { + if ((idx2 == cursor.idx && !shouldSetLegend) || i$1 == 0 && multiValLegend) + { continue; } + + var src$1 = i$1 == 0 && xScaleDistr == 2 ? data0 : data[i$1]; + + var vals = multiValLegend ? s.values(self, i$1, idx2) : {_: s.value(self, src$1[idx2], i$1, idx2)}; + + var j$1 = 0; + + for (var k in vals) + { legendRows[i$1][j$1++][firstChild].nodeValue = vals[k]; } + } + } + + shouldSetLegend = false; + } + + // nit: cursor.drag.setSelect is assumed always true + if (select.show && dragging) { + if (src != null) { + var ref = syncOpts.scales; + var xKey = ref[0]; + var yKey = ref[1]; + + // match the dragX/dragY implicitness/explicitness of src + var sdrag = src.cursor.drag; + dragX = sdrag._x; + dragY = sdrag._y; + + if (xKey) { + var sc = scales[xKey]; + var srcLeft = src.posToVal(src.select[LEFT], xKey); + var srcRight = src.posToVal(src.select[LEFT] + src.select[WIDTH], xKey); + + select[LEFT] = getXPos(srcLeft, sc, plotWidCss, 0); + select[WIDTH] = abs(select[LEFT] - getXPos(srcRight, sc, plotWidCss, 0)); + + setStylePx(selectDiv, LEFT, select[LEFT]); + setStylePx(selectDiv, WIDTH, select[WIDTH]); + + if (!yKey) { + setStylePx(selectDiv, TOP, select[TOP] = 0); + setStylePx(selectDiv, HEIGHT, select[HEIGHT] = plotHgtCss); + } + } + + if (yKey) { + var sc$1 = scales[yKey]; + var srcTop = src.posToVal(src.select[TOP], yKey); + var srcBottom = src.posToVal(src.select[TOP] + src.select[HEIGHT], yKey); + + select[TOP] = getYPos(srcTop, sc$1, plotHgtCss, 0); + select[HEIGHT] = abs(select[TOP] - getYPos(srcBottom, sc$1, plotHgtCss, 0)); + + setStylePx(selectDiv, TOP, select[TOP]); + setStylePx(selectDiv, HEIGHT, select[HEIGHT]); + + if (!xKey) { + setStylePx(selectDiv, LEFT, select[LEFT] = 0); + setStylePx(selectDiv, WIDTH, select[WIDTH] = plotWidCss); + } + } + } + else { + var rawDX = abs(rawMouseLeft1 - rawMouseLeft0); + var rawDY = abs(rawMouseTop1 - rawMouseTop0); + + dragX = drag.x && rawDX >= drag.dist; + dragY = drag.y && rawDY >= drag.dist; + + var uni = drag.uni; + + if (uni != null) { + // only calc drag status if they pass the dist thresh + if (dragX && dragY) { + dragX = rawDX >= uni; + dragY = rawDY >= uni; + + // force unidirectionality when both are under uni limit + if (!dragX && !dragY) { + if (rawDY > rawDX) + { dragY = true; } + else + { dragX = true; } + } + } + } + else if (drag.x && drag.y && (dragX || dragY)) + // if omni with no uni then both dragX / dragY should be true if either is true + { dragX = dragY = true; } + + if (dragX) { + var minX = min(mouseLeft0, mouseLeft1); + var dx = abs(mouseLeft1 - mouseLeft0); + + setStylePx(selectDiv, LEFT, select[LEFT] = minX); + setStylePx(selectDiv, WIDTH, select[WIDTH] = dx); + + if (!dragY) { + setStylePx(selectDiv, TOP, select[TOP] = 0); + setStylePx(selectDiv, HEIGHT, select[HEIGHT] = plotHgtCss); + } + } + + if (dragY) { + var minY = min(mouseTop0, mouseTop1); + var dy = abs(mouseTop1 - mouseTop0); + + setStylePx(selectDiv, TOP, select[TOP] = minY); + setStylePx(selectDiv, HEIGHT, select[HEIGHT] = dy); + + if (!dragX) { + setStylePx(selectDiv, LEFT, select[LEFT] = 0); + setStylePx(selectDiv, WIDTH, select[WIDTH] = plotWidCss); + } + } + + if (!dragX && !dragY) { + // the drag didn't pass the dist requirement + setStylePx(selectDiv, HEIGHT, select[HEIGHT] = 0); + setStylePx(selectDiv, WIDTH, select[WIDTH] = 0); + } + } + } + + cursor.idx = idx; + cursor.left = mouseLeft1; + cursor.top = mouseTop1; + drag._x = dragX; + drag._y = dragY; + + // if ts is present, means we're implicitly syncing own cursor as a result of debounced rAF + if (ts != null) { + // this is not technically a "mousemove" event, since it's debounced, rename to setCursor? + // since this is internal, we can tweak it later + sync.pub(mousemove, self, mouseLeft1, mouseTop1, plotWidCss, plotHgtCss, idx); + + if (cursorFocus) { + setSeries(closestDist <= focus.prox ? closestSeries : null, {focus: true}, syncOpts.setSeries); + } + } + + ready && fire("setCursor"); + } + + var rect = null; + + function syncRect() { + rect = over.getBoundingClientRect(); + } + + function mouseMove(e, src, _x, _y, _w, _h, _i) { + if (cursor._lock) + { return; } + + cacheMouse(e, src, _x, _y, _w, _h, _i, false, e != null); + + if (e != null) { + if (cursorRaf == 0) + { cursorRaf = rAF(updateCursor); } + } + else + { updateCursor(null, src); } + } + + function cacheMouse(e, src, _x, _y, _w, _h, _i, initial, snap) { + var assign; + + if (e != null) { + _x = e.clientX - rect.left; + _y = e.clientY - rect.top; + } + else { + if (_x < 0 || _y < 0) { + mouseLeft1 = -10; + mouseTop1 = -10; + return; + } + + var ref = syncOpts.scales; + var xKey = ref[0]; + var yKey = ref[1]; + + if (xKey != null) + { _x = getXPos(src.posToVal(_x, xKey), scales[xKey], plotWidCss, 0); } + else + { _x = plotWidCss * (_x/_w); } + + if (yKey != null) + { _y = getYPos(src.posToVal(_y, yKey), scales[yKey], plotHgtCss, 0); } + else + { _y = plotHgtCss * (_y/_h); } + } + + if (snap) { + if (_x <= 1 || _x >= plotWidCss - 1) + { _x = incrRound(_x, plotWidCss); } + + if (_y <= 1 || _y >= plotHgtCss - 1) + { _y = incrRound(_y, plotHgtCss); } + } + + if (initial) { + rawMouseLeft0 = _x; + rawMouseTop0 = _y; + + (assign = cursor.move(self, _x, _y), mouseLeft0 = assign[0], mouseTop0 = assign[1]); + } + else { + mouseLeft1 = _x; + mouseTop1 = _y; + } + } + + function hideSelect() { + setSelect({ + width: 0, + height: 0, + }, false); + } + + function mouseDown(e, src, _x, _y, _w, _h, _i) { + dragging = true; + dragX = dragY = drag._x = drag._y = false; + + cacheMouse(e, src, _x, _y, _w, _h, _i, true, false); + + if (e != null) { + onMouse(mouseup, doc, mouseUp); + sync.pub(mousedown, self, mouseLeft0, mouseTop0, plotWidCss, plotHgtCss, null); + } + } + + function mouseUp(e, src, _x, _y, _w, _h, _i) { + dragging = drag._x = drag._y = false; + + cacheMouse(e, src, _x, _y, _w, _h, _i, false, true); + + var hasSelect = select[WIDTH] > 0 || select[HEIGHT] > 0; + + hasSelect && setSelect(select); + + if (drag.setScale && hasSelect) { + // if (syncKey != null) { + // dragX = drag.x; + // dragY = drag.y; + // } + + if (dragX) { + _setScale(xScaleKey, + scaleValueAtPos(select[LEFT], xScaleKey), + scaleValueAtPos(select[LEFT] + select[WIDTH], xScaleKey) + ); + } + + if (dragY) { + for (var k in scales) { + var sc = scales[k]; + + if (k != xScaleKey && sc.from == null && sc.min != inf) { + _setScale(k, + scaleValueAtPos(select[TOP] + select[HEIGHT], k), + scaleValueAtPos(select[TOP], k) + ); + } + } + } + + hideSelect(); + } + else if (cursor.lock) { + cursor._lock = !cursor._lock; + + if (!cursor._lock) + { updateCursor(); } + } + + if (e != null) { + offMouse(mouseup, doc); + sync.pub(mouseup, self, mouseLeft1, mouseTop1, plotWidCss, plotHgtCss, null); + } + } + + function mouseLeave(e, src, _x, _y, _w, _h, _i) { + if (!cursor._lock) { + var _dragging = dragging; + + if (dragging) { + // handle case when mousemove aren't fired all the way to edges by browser + var snapX = true; + var snapY = true; + var snapProx = 10; + + if (dragX && dragY) { + // maybe omni corner snap + snapX = mouseLeft1 <= snapProx || mouseLeft1 >= plotWidCss - snapProx; + snapY = mouseTop1 <= snapProx || mouseTop1 >= plotHgtCss - snapProx; + } + + if (dragX && snapX) { + var dLft = mouseLeft1; + var dRgt = plotWidCss - mouseLeft1; + + var xMin = min(dLft, dRgt); + + if (xMin == dLft) + { mouseLeft1 = 0; } + if (xMin == dRgt) + { mouseLeft1 = plotWidCss; } + } + + if (dragY && snapY) { + var dTop = mouseTop1; + var dBtm = plotHgtCss - mouseTop1; + + var yMin = min(dTop, dBtm); + + if (yMin == dTop) + { mouseTop1 = 0; } + if (yMin == dBtm) + { mouseTop1 = plotHgtCss; } + } + + updateCursor(1); + + dragging = false; + } + + mouseLeft1 = -10; + mouseTop1 = -10; + + // passing a non-null timestamp to force sync/mousemove event + updateCursor(1); + + if (_dragging) + { dragging = _dragging; } + } + } + + function dblClick(e, src, _x, _y, _w, _h, _i) { + autoScaleX(); + + hideSelect(); + + if (e != null) + { sync.pub(dblclick, self, mouseLeft1, mouseTop1, plotWidCss, plotHgtCss, null); } + } + + // internal pub/sub + var events = {}; + + events[mousedown] = mouseDown; + events[mousemove] = mouseMove; + events[mouseup] = mouseUp; + events[dblclick] = dblClick; + events["setSeries"] = function (e, src, idx, opts) { + setSeries(idx, opts); + }; + + var deb; + + if ( cursor.show) { + onMouse(mousedown, over, mouseDown); + onMouse(mousemove, over, mouseMove); + onMouse(mouseenter, over, syncRect); + // this has to be rAF'd so it always fires after the last queued/rAF'd updateCursor + onMouse(mouseleave, over, function (e) { rAF(mouseLeave); }); + + onMouse(dblclick, over, dblClick); + + deb = debounce(syncRect, 100); + + on(resize, win, deb); + on(scroll, win, deb); + + self.syncRect = syncRect; + } + + // external on/off + var hooks = self.hooks = opts.hooks || {}; + + function fire(evName, a1, a2) { + if (evName in hooks) { + hooks[evName].forEach(function (fn) { + fn.call(null, self, a1, a2); + }); + } + } + + (opts.plugins || []).forEach(function (p) { + for (var evName in p.hooks) + { hooks[evName] = (hooks[evName] || []).concat(p.hooks[evName]); } + }); + + var syncOpts = assign({ + key: null, + setSeries: false, + scales: [xScaleKey, null] + }, cursor.sync); + + var syncKey = syncOpts.key; + + var sync = (syncKey != null ? (syncs[syncKey] = syncs[syncKey] || _sync()) : _sync()); + + sync.sub(self); + + function pub(type, src, x, y, w, h, i) { + events[type](null, src, x, y, w, h, i); + } + + (self.pub = pub); + + function destroy() { + sync.unsub(self); + off(resize, win, deb); + off(scroll, win, deb); + root.remove(); + fire("destroy"); + } + + self.destroy = destroy; + + function _init() { + fire("init", opts, data); + + setData(data || opts.data, false); + + if (pendScales[xScaleKey]) + { setScale(xScaleKey, pendScales[xScaleKey]); } + else + { autoScaleX(); } + + _setSize(opts[WIDTH], opts[HEIGHT]); + + setSelect(select, false); + } + + if (then) { + if (then instanceof HTMLElement) { + then.appendChild(root); + _init(); + } + else + { then(self, _init); } + } + else + { _init(); } + + return self; +} + +uPlot.assign = assign; +uPlot.fmtNum = fmtNum; +uPlot.rangeNum = rangeNum; +uPlot.rangeLog = rangeLog; + +{ + uPlot.fmtDate = fmtDate; + uPlot.tzDate = tzDate; +} + +module.exports = uPlot; diff --git a/plugins/uplot/uPlot.esm.js b/plugins/uplot/uPlot.esm.js new file mode 100644 index 000000000..21f55f5ee --- /dev/null +++ b/plugins/uplot/uPlot.esm.js @@ -0,0 +1,3431 @@ +/** +* Copyright (c) 2020, Leon Sorokin +* All rights reserved. (MIT Licensed) +* +* uPlot.js (μPlot) +* A small, fast chart for time series, lines, areas, ohlc & bars +* https://github.com/leeoniya/uPlot (v1.4.4) +*/ + +function debounce(fn, time) { + let pending = null; + + function run() { + pending = null; + fn(); + } + + return function() { + clearTimeout(pending); + pending = setTimeout(run, time); + } +} + +// binary search for index of closest value +function closestIdx(num, arr, lo, hi) { + let mid; + lo = lo || 0; + hi = hi || arr.length - 1; + let bitwise = hi <= 2147483647; + + while (hi - lo > 1) { + mid = bitwise ? (lo + hi) >> 1 : floor((lo + hi) / 2); + + if (arr[mid] < num) + lo = mid; + else + hi = mid; + } + + if (num - arr[lo] <= arr[hi] - num) + return lo; + + return hi; +} + +function getMinMax(data, _i0, _i1, sorted) { +// console.log("getMinMax()"); + + let _min = inf; + let _max = -inf; + + if (sorted == 1) { + _min = data[_i0]; + _max = data[_i1]; + } + else if (sorted == -1) { + _min = data[_i1]; + _max = data[_i0]; + } + else { + for (let i = _i0; i <= _i1; i++) { + if (data[i] != null) { + _min = min(_min, data[i]); + _max = max(_max, data[i]); + } + } + } + + return [_min, _max]; +} + +const _fixedTuple = [0, 0]; + +function fixIncr(minIncr, maxIncr, minExp, maxExp) { + _fixedTuple[0] = minExp < 0 ? roundDec(minIncr, -minExp) : minIncr; + _fixedTuple[1] = maxExp < 0 ? roundDec(maxIncr, -maxExp) : maxIncr; + return _fixedTuple; +} + +function rangeLog(min, max, base, fullMags) { + let logFn = base == 10 ? log10 : log2; + + if (min == max) { + min /= base; + max *= base; + } + + let minExp, maxExp, minMaxIncrs; + + if (fullMags) { + minExp = floor(logFn(min)); + maxExp = ceil(logFn(max)); + + minMaxIncrs = fixIncr(pow(base, minExp), pow(base, maxExp), minExp, maxExp); + + min = minMaxIncrs[0]; + max = minMaxIncrs[1]; + } + else { + minExp = floor(logFn(min)); + maxExp = floor(logFn(max)); + + minMaxIncrs = fixIncr(pow(base, minExp), pow(base, maxExp), minExp, maxExp); + + min = incrRoundDn(min, minMaxIncrs[0]); + max = incrRoundUp(max, minMaxIncrs[1]); + } + + return [min, max]; +} + +const _eqRangePart = { + pad: 0, + soft: null, + mode: 0, +}; + +const _eqRange = { + min: _eqRangePart, + max: _eqRangePart, +}; + +// this ensures that non-temporal/numeric y-axes get multiple-snapped padding added above/below +// TODO: also account for incrs when snapping to ensure top of axis gets a tick & value +function rangeNum(_min, _max, mult, extra) { + if (isObj(mult)) + return _rangeNum(_min, _max, mult); + + _eqRangePart.pad = mult; + _eqRangePart.soft = extra ? 0 : null; + _eqRangePart.mode = extra ? 2 : 0; + + return _rangeNum(_min, _max, _eqRange); +} + +// nullish coalesce +function ifNull(lh, rh) { + return lh == null ? rh : lh; +} + +function _rangeNum(_min, _max, cfg) { + let cmin = cfg.min; + let cmax = cfg.max; + + let padMin = ifNull(cmin.pad, 0); + let padMax = ifNull(cmax.pad, 0); + + let hardMin = ifNull(cmin.hard, -inf); + let hardMax = ifNull(cmax.hard, inf); + + let softMin = ifNull(cmin.soft, inf); + let softMax = ifNull(cmax.soft, -inf); + + let softMinMode = ifNull(cmin.mode, 0); + let softMaxMode = ifNull(cmax.mode, 0); + + let delta = _max - _min; + let nonZeroDelta = delta || abs(_max) || 1e3; + let mag = log10(nonZeroDelta); + let base = pow(10, floor(mag)); + + let _padMin = nonZeroDelta * (delta == 0 ? (_min == 0 ? .1 : 1) : padMin); + let _newMin = roundDec(incrRoundDn(_min - _padMin, base/100), 6); + let _softMin = _min >= softMin && (softMinMode == 1 || softMinMode == 2 && _newMin < softMin) ? softMin : inf; + let minLim = max(hardMin, _newMin < _softMin && _min >= _softMin ? _softMin : min(_softMin, _newMin)); + + let _padMax = nonZeroDelta * (delta == 0 ? (_max == 0 ? .1 : 1) : padMax); + let _newMax = roundDec(incrRoundUp(_max + _padMax, base/100), 6); + let _softMax = _max <= softMax && (softMaxMode == 1 || softMaxMode == 2 && _newMax > softMax) ? softMax : -inf; + let maxLim = min(hardMax, _newMax > _softMax && _max <= _softMax ? _softMax : max(_softMax, _newMax)); + + if (minLim == maxLim && minLim == 0) + maxLim = 100; + + return [minLim, maxLim]; +} + +// alternative: https://stackoverflow.com/a/2254896 +const fmtNum = new Intl.NumberFormat(navigator.language).format; + +const M = Math; + +const abs = M.abs; +const floor = M.floor; +const round = M.round; +const ceil = M.ceil; +const min = M.min; +const max = M.max; +const pow = M.pow; +const log10 = M.log10; +const log2 = M.log2; +const PI = M.PI; + +const inf = Infinity; + +function incrRound(num, incr) { + return round(num/incr)*incr; +} + +function clamp(num, _min, _max) { + return min(max(num, _min), _max); +} + +function fnOrSelf(v) { + return typeof v == "function" ? v : () => v; +} + +function retArg1(_0, _1) { + return _1; +} + +function incrRoundUp(num, incr) { + return ceil(num/incr)*incr; +} + +function incrRoundDn(num, incr) { + return floor(num/incr)*incr; +} + +function roundDec(val, dec) { + return round(val * (dec = 10**dec)) / dec; +} + +const fixedDec = new Map(); + +function guessDec(num) { + return ((""+num).split(".")[1] || "").length; +} + +function genIncrs(base, minExp, maxExp, mults) { + let incrs = []; + + let multDec = mults.map(guessDec); + + for (let exp = minExp; exp < maxExp; exp++) { + let expa = abs(exp); + let mag = roundDec(pow(base, exp), expa); + + for (let i = 0; i < mults.length; i++) { + let _incr = mults[i] * mag; + let dec = (_incr >= 0 && exp >= 0 ? 0 : expa) + (exp >= multDec[i] ? 0 : multDec[i]); + let incr = roundDec(_incr, dec); + incrs.push(incr); + fixedDec.set(incr, dec); + } + } + + return incrs; +} + +//export const assign = Object.assign; + +const EMPTY_OBJ = {}; + +const isArr = Array.isArray; + +function isStr(v) { + return typeof v === 'string'; +} + +function isObj(v) { + return typeof v === 'object' && v !== null; +} + +function copy(o) { + let out; + + if (isArr(o)) + out = o.map(copy); + else if (isObj(o)) { + out = {}; + for (var k in o) + out[k] = copy(o[k]); + } + else + out = o; + + return out; +} + +function assign(targ) { + let args = arguments; + + for (let i = 1; i < args.length; i++) { + let src = args[i]; + + for (let key in src) { + if (isObj(targ[key])) + assign(targ[key], copy(src[key])); + else + targ[key] = copy(src[key]); + } + } + + return targ; +} + +const microTask = typeof queueMicrotask == "undefined" ? fn => Promise.resolve().then(fn) : queueMicrotask; + +const WIDTH = "width"; +const HEIGHT = "height"; +const TOP = "top"; +const BOTTOM = "bottom"; +const LEFT = "left"; +const RIGHT = "right"; +const firstChild = "firstChild"; +const createElement = "createElement"; +const hexBlack = "#000"; +const transparent = hexBlack + "0"; +const classList = "classList"; + +const mousemove = "mousemove"; +const mousedown = "mousedown"; +const mouseup = "mouseup"; +const mouseenter = "mouseenter"; +const mouseleave = "mouseleave"; +const dblclick = "dblclick"; +const resize = "resize"; +const scroll = "scroll"; + +const pre = "u-"; + +const UPLOT = "uplot"; +const TITLE = pre + "title"; +const WRAP = pre + "wrap"; +const UNDER = pre + "under"; +const OVER = pre + "over"; +const OFF = pre + "off"; +const SELECT = pre + "select"; +const CURSOR_X = pre + "cursor-x"; +const CURSOR_Y = pre + "cursor-y"; +const CURSOR_PT = pre + "cursor-pt"; +const LEGEND = pre + "legend"; +const LEGEND_LIVE = pre + "live"; +const LEGEND_INLINE = pre + "inline"; +const LEGEND_THEAD = pre + "thead"; +const LEGEND_SERIES = pre + "series"; +const LEGEND_MARKER = pre + "marker"; +const LEGEND_LABEL = pre + "label"; +const LEGEND_VALUE = pre + "value"; + +const rAF = requestAnimationFrame; +const doc = document; +const win = window; +const pxRatio = devicePixelRatio; + +function addClass(el, c) { + c != null && el[classList].add(c); +} + +function remClass(el, c) { + el[classList].remove(c); +} + +function setStylePx(el, name, value) { + el.style[name] = value + "px"; +} + +function placeTag(tag, cls, targ, refEl) { + let el = doc[createElement](tag); + + if (cls != null) + addClass(el, cls); + + if (targ != null) + targ.insertBefore(el, refEl); + + return el; +} + +function placeDiv(cls, targ) { + return placeTag("div", cls, targ); +} + +function trans(el, xPos, yPos, xMax, yMax) { + el.style.transform = "translate(" + xPos + "px," + yPos + "px)"; + + if (xPos < 0 || yPos < 0 || xPos > xMax || yPos > yMax) + addClass(el, OFF); + else + remClass(el, OFF); +} + +const evOpts = {passive: true}; + +function on(ev, el, cb) { + el.addEventListener(ev, cb, evOpts); +} + +function off(ev, el, cb) { + el.removeEventListener(ev, cb, evOpts); +} + +const months = [ + "January", + "February", + "March", + "April", + "May", + "June", + "July", + "August", + "September", + "October", + "November", + "December", +]; + +const days = [ + "Sunday", + "Monday", + "Tuesday", + "Wednesday", + "Thursday", + "Friday", + "Saturday", +]; + +function slice3(str) { + return str.slice(0, 3); +} + +const days3 = days.map(slice3); + +const months3 = months.map(slice3); + +const engNames = { + MMMM: months, + MMM: months3, + WWWW: days, + WWW: days3, +}; + +function zeroPad2(int) { + return (int < 10 ? '0' : '') + int; +} + +function zeroPad3(int) { + return (int < 10 ? '00' : int < 100 ? '0' : '') + int; +} + +/* +function suffix(int) { + let mod10 = int % 10; + + return int + ( + mod10 == 1 && int != 11 ? "st" : + mod10 == 2 && int != 12 ? "nd" : + mod10 == 3 && int != 13 ? "rd" : "th" + ); +} +*/ + +const getFullYear = 'getFullYear'; +const getMonth = 'getMonth'; +const getDate = 'getDate'; +const getDay = 'getDay'; +const getHours = 'getHours'; +const getMinutes = 'getMinutes'; +const getSeconds = 'getSeconds'; +const getMilliseconds = 'getMilliseconds'; + +const subs = { + // 2019 + YYYY: d => d[getFullYear](), + // 19 + YY: d => (d[getFullYear]()+'').slice(2), + // July + MMMM: (d, names) => names.MMMM[d[getMonth]()], + // Jul + MMM: (d, names) => names.MMM[d[getMonth]()], + // 07 + MM: d => zeroPad2(d[getMonth]()+1), + // 7 + M: d => d[getMonth]()+1, + // 09 + DD: d => zeroPad2(d[getDate]()), + // 9 + D: d => d[getDate](), + // Monday + WWWW: (d, names) => names.WWWW[d[getDay]()], + // Mon + WWW: (d, names) => names.WWW[d[getDay]()], + // 03 + HH: d => zeroPad2(d[getHours]()), + // 3 + H: d => d[getHours](), + // 9 (12hr, unpadded) + h: d => {let h = d[getHours](); return h == 0 ? 12 : h > 12 ? h - 12 : h;}, + // AM + AA: d => d[getHours]() >= 12 ? 'PM' : 'AM', + // am + aa: d => d[getHours]() >= 12 ? 'pm' : 'am', + // a + a: d => d[getHours]() >= 12 ? 'p' : 'a', + // 09 + mm: d => zeroPad2(d[getMinutes]()), + // 9 + m: d => d[getMinutes](), + // 09 + ss: d => zeroPad2(d[getSeconds]()), + // 9 + s: d => d[getSeconds](), + // 374 + fff: d => zeroPad3(d[getMilliseconds]()), +}; + +function fmtDate(tpl, names) { + names = names || engNames; + let parts = []; + + let R = /\{([a-z]+)\}|[^{]+/gi, m; + + while (m = R.exec(tpl)) + parts.push(m[0][0] == '{' ? subs[m[1]] : m[0]); + + return d => { + let out = ''; + + for (let i = 0; i < parts.length; i++) + out += typeof parts[i] == "string" ? parts[i] : parts[i](d, names); + + return out; + } +} + +const localTz = new Intl.DateTimeFormat().resolvedOptions().timeZone; + +// https://stackoverflow.com/questions/15141762/how-to-initialize-a-javascript-date-to-a-particular-time-zone/53652131#53652131 +function tzDate(date, tz) { + let date2; + + // perf optimization + if (tz == 'Etc/UTC') + date2 = new Date(+date + date.getTimezoneOffset() * 6e4); + else if (tz == localTz) + date2 = date; + else { + date2 = new Date(date.toLocaleString('en-US', {timeZone: tz})); + date2.setMilliseconds(date[getMilliseconds]()); + } + + return date2; +} + +//export const series = []; + +// default formatters: + +const onlyWhole = v => v % 1 == 0; + +const allMults = [1,2,2.5,5]; + +const wholeMults = allMults.filter(onlyWhole); + +// ...0.01, 0.02, 0.025, 0.05, 0.1, 0.2, 0.25, 0.5 +const decIncrs = genIncrs(10, -16, 0, allMults); + +// 1, 2, 2.5, 5, 10, 20, 25, 50... +const oneIncrs = genIncrs(10, 0, 16, allMults); + +// 1, 2, 5, 10, 20, 25, 50... +const wholeIncrs = oneIncrs.filter(onlyWhole); + +const numIncrs = decIncrs.concat(oneIncrs); + +let s = 1, + m = 60, + h = m * m, + d = h * 24, + mo = d * 30, + y = d * 365; + +// min of 1e-3 prevents setting a temporal x ticks too small since Date objects cannot advance ticks smaller than 1ms +const timeIncrs = genIncrs(10, -3, 0, wholeMults).concat([ + // minute divisors (# of secs) + 1, + 5, + 10, + 15, + 30, + // hour divisors (# of mins) + m, + m * 5, + m * 10, + m * 15, + m * 30, + // day divisors (# of hrs) + h, + h * 2, + h * 3, + h * 4, + h * 6, + h * 8, + h * 12, + // month divisors TODO: need more? + d, + d * 2, + d * 3, + d * 4, + d * 5, + d * 6, + d * 7, + d * 8, + d * 9, + d * 10, + d * 15, + // year divisors (# months, approx) + mo, + mo * 2, + mo * 3, + mo * 4, + mo * 6, + // century divisors + y, + y * 2, + y * 5, + y * 10, + y * 25, + y * 50, + y * 100, +]); + +// base 2 +const binIncrs = genIncrs(2, -53, 53, [1]); + +/* +console.log({ + decIncrs, + oneIncrs, + wholeIncrs, + numIncrs, + timeIncrs, + fixedDec, +}); +*/ + +function timeAxisStamps(stampCfg, fmtDate) { + return stampCfg.map(s => s.map((v, i) => + i == 0 || i == 8 || v == null ? v : fmtDate(i == 1 || s[8] == 0 ? v : s[1] + v) + )); +} + +const NL = "\n"; + +const yyyy = "{YYYY}"; +const NLyyyy = NL + yyyy; +const md = "{M}/{D}"; +const NLmd = NL + md; +const NLmdyy = NLmd + "/{YY}"; + +const aa = "{aa}"; +const hmm = "{h}:{mm}"; +const hmmaa = hmm + aa; +const NLhmmaa = NL + hmmaa; +const ss = ":{ss}"; + +const _ = null; + +// [0]: minimum num secs in the tick incr +// [1]: default tick format +// [2-7]: rollover tick formats +// [8]: mode: 0: replace [1] -> [2-7], 1: concat [1] + [2-7] +const _timeAxisStamps = [ +// tick incr default year month day hour min sec mode + [y, yyyy, _, _, _, _, _, _, 1], + [d * 28, "{MMM}", NLyyyy, _, _, _, _, _, 1], + [d, md, NLyyyy, _, _, _, _, _, 1], + [h, "{h}" + aa, NLmdyy, _, NLmd, _, _, _, 1], + [m, hmmaa, NLmdyy, _, NLmd, _, _, _, 1], + [s, ss, NLmdyy + " " + hmmaa, _, NLmd + " " + hmmaa, _, NLhmmaa, _, 1], + [1e-3, ss + ".{fff}", NLmdyy + " " + hmmaa, _, NLmd + " " + hmmaa, _, NLhmmaa, _, 1], +]; + +// TODO: will need to accept spaces[] and pull incr into the loop when grid will be non-uniform, eg for log scales. +// currently we ignore this for months since they're *nearly* uniform and the added complexity is not worth it +function timeAxisVals(tzDate, stamps) { + return (self, splits, axisIdx, foundSpace, foundIncr) => { + let s = stamps.find(s => foundIncr >= s[0]) || stamps[stamps.length - 1]; + + // these track boundaries when a full label is needed again + let prevYear; + let prevMnth; + let prevDate; + let prevHour; + let prevMins; + let prevSecs; + + return splits.map(split => { + let date = tzDate(split); + + let newYear = date[getFullYear](); + let newMnth = date[getMonth](); + let newDate = date[getDate](); + let newHour = date[getHours](); + let newMins = date[getMinutes](); + let newSecs = date[getSeconds](); + + let stamp = ( + newYear != prevYear && s[2] || + newMnth != prevMnth && s[3] || + newDate != prevDate && s[4] || + newHour != prevHour && s[5] || + newMins != prevMins && s[6] || + newSecs != prevSecs && s[7] || + s[1] + ); + + prevYear = newYear; + prevMnth = newMnth; + prevDate = newDate; + prevHour = newHour; + prevMins = newMins; + prevSecs = newSecs; + + return stamp(date); + }); + } +} + +// for when axis.values is defined as a static fmtDate template string +function timeAxisVal(tzDate, dateTpl) { + let stamp = fmtDate(dateTpl); + return (self, splits, axisIdx, foundSpace, foundIncr) => splits.map(split => stamp(tzDate(split))); +} + +function mkDate(y, m, d) { + return new Date(y, m, d); +} + +// the ensures that axis ticks, values & grid are aligned to logical temporal breakpoints and not an arbitrary timestamp +// https://www.timeanddate.com/time/dst/ +// https://www.timeanddate.com/time/dst/2019.html +// https://www.epochconverter.com/timezones +function timeAxisSplits(tzDate) { + return (self, axisIdx, scaleMin, scaleMax, foundIncr, foundSpace) => { + let splits = []; + let isYr = foundIncr >= y; + let isMo = foundIncr >= mo && foundIncr < y; + + // get the timezone-adjusted date + let minDate = tzDate(scaleMin); + let minDateTs = minDate / 1e3; + + // get ts of 12am (this lands us at or before the original scaleMin) + let minMin = mkDate(minDate[getFullYear](), isYr ? 0 : minDate[getMonth](), isMo || isYr ? 1 : minDate[getDate]()); + let minMinTs = minMin / 1e3; + + if (isMo || isYr) { + let moIncr = isMo ? foundIncr / mo : 0; + let yrIncr = isYr ? foundIncr / y : 0; + // let tzOffset = scaleMin - minDateTs; // needed? + let split = minDateTs == minMinTs ? minDateTs : mkDate(minMin[getFullYear]() + yrIncr, minMin[getMonth]() + moIncr, 1) / 1e3; + let splitDate = new Date(split * 1e3); + let baseYear = splitDate[getFullYear](); + let baseMonth = splitDate[getMonth](); + + for (let i = 0; split <= scaleMax; i++) { + let next = mkDate(baseYear + yrIncr * i, baseMonth + moIncr * i, 1); + let offs = next - tzDate(next / 1e3); + + split = (+next + offs) / 1e3; + + if (split <= scaleMax) + splits.push(split); + } + } + else { + let incr0 = foundIncr >= d ? d : foundIncr; + let tzOffset = floor(scaleMin) - floor(minDateTs); + let split = minMinTs + tzOffset + incrRoundUp(minDateTs - minMinTs, incr0); + splits.push(split); + + let date0 = tzDate(split); + + let prevHour = date0[getHours]() + (date0[getMinutes]() / m) + (date0[getSeconds]() / h); + let incrHours = foundIncr / h; + + let minSpace = self.axes[axisIdx]._space; + let pctSpace = foundSpace / minSpace; + + while (1) { + split = roundDec(split + foundIncr, 3); + + if (split > scaleMax) + break; + + if (incrHours > 1) { + let expectedHour = floor(roundDec(prevHour + incrHours, 6)) % 24; + let splitDate = tzDate(split); + let actualHour = splitDate.getHours(); + + let dstShift = actualHour - expectedHour; + + if (dstShift > 1) + dstShift = -1; + + split -= dstShift * h; + + prevHour = (prevHour + incrHours) % 24; + + // add a tick only if it's further than 70% of the min allowed label spacing + let prevSplit = splits[splits.length - 1]; + let pctIncr = roundDec((split - prevSplit) / foundIncr, 3); + + if (pctIncr * pctSpace >= .7) + splits.push(split); + } + else + splits.push(split); + } + } + + return splits; + } +} + +function timeSeriesStamp(stampCfg, fmtDate) { + return fmtDate(stampCfg); +} +const _timeSeriesStamp = '{YYYY}-{MM}-{DD} {h}:{mm}{aa}'; + +function timeSeriesVal(tzDate, stamp) { + return (self, val) => stamp(tzDate(val)); +} + +function cursorPoint(self, si) { + let s = self.series[si]; + + let pt = placeDiv(); + + pt.style.background = s.stroke || hexBlack; + + let dia = ptDia(s.width, 1); + let mar = (dia - 1) / -2; + + setStylePx(pt, WIDTH, dia); + setStylePx(pt, HEIGHT, dia); + setStylePx(pt, "marginLeft", mar); + setStylePx(pt, "marginTop", mar); + + return pt; +} + +function dataIdx(self, seriesIdx, cursorIdx) { + return cursorIdx; +} + +const moveTuple = [0,0]; + +function cursorMove(self, mouseLeft1, mouseTop1) { + moveTuple[0] = mouseLeft1; + moveTuple[1] = mouseTop1; + return moveTuple; +} + +function filtBtn0(self, targ, handle) { + return e => { + e.button == 0 && handle(e); + }; +} + +function passThru(self, targ, handle) { + return handle; +} + +const cursorOpts = { + show: true, + x: true, + y: true, + lock: false, + move: cursorMove, + points: { + show: cursorPoint, + }, + + bind: { + mousedown: filtBtn0, + mouseup: filtBtn0, + click: filtBtn0, + dblclick: filtBtn0, + + mousemove: passThru, + mouseleave: passThru, + mouseenter: passThru, + }, + + drag: { + setScale: true, + x: true, + y: false, + dist: 0, + uni: null, + _x: false, + _y: false, + }, + + focus: { + prox: -1, + }, + + left: -10, + top: -10, + idx: null, + dataIdx, +}; + +const grid = { + show: true, + stroke: "rgba(0,0,0,0.07)", + width: 2, +// dash: [], + filter: retArg1, +}; + +const ticks = assign({}, grid, {size: 10}); + +const font = '12px system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji"'; +const labelFont = "bold " + font; +const lineMult = 1.5; // font-size multiplier + +const xAxisOpts = { + show: true, + scale: "x", + space: 50, + gap: 5, + size: 50, + labelSize: 30, + labelFont, + side: 2, +// class: "x-vals", +// incrs: timeIncrs, +// values: timeVals, +// filter: retArg1, + grid, + ticks, + font, + rotate: 0, +}; + +const numSeriesLabel = "Value"; +const timeSeriesLabel = "Time"; + +const xSeriesOpts = { + show: true, + scale: "x", + auto: false, + sorted: 1, +// label: "Time", +// value: v => stamp(new Date(v * 1e3)), + + // internal caches + min: inf, + max: -inf, + idxs: [], +}; + +function numAxisVals(self, splits, axisIdx, foundSpace, foundIncr) { + return splits.map(v => v == null ? "" : fmtNum(v)); +} + +function numAxisSplits(self, axisIdx, scaleMin, scaleMax, foundIncr, foundSpace, forceMin) { + let splits = []; + + let numDec = fixedDec.get(foundIncr) || 0; + + scaleMin = forceMin ? scaleMin : roundDec(incrRoundUp(scaleMin, foundIncr), numDec); + + for (let val = scaleMin; val <= scaleMax; val = roundDec(val + foundIncr, numDec)) + splits.push(Object.is(val, -0) ? 0 : val); // coalesces -0 + + return splits; +} + +function logAxisSplits(self, axisIdx, scaleMin, scaleMax, foundIncr, foundSpace, forceMin) { + const splits = []; + + const logBase = self.scales[self.axes[axisIdx].scale].log; + + const logFn = logBase == 10 ? log10 : log2; + + const exp = floor(logFn(scaleMin)); + + foundIncr = pow(logBase, exp); + + if (exp < 0) + foundIncr = roundDec(foundIncr, -exp); + + let split = scaleMin; + + do { + splits.push(split); + split = roundDec(split + foundIncr, fixedDec.get(foundIncr)); + + if (split >= foundIncr * logBase) + foundIncr = split; + + } while (split <= scaleMax); + + return splits; +} + +const RE_ALL = /./; +const RE_12357 = /[12357]/; +const RE_125 = /[125]/; +const RE_1 = /1/; + +function logAxisValsFilt(self, splits, axisIdx, foundSpace, foundIncr) { + let axis = self.axes[axisIdx]; + let scaleKey = axis.scale; + + if (self.scales[scaleKey].log == 2) + return splits; + + let valToPos = self.valToPos; + + let minSpace = axis._space; + + let _10 = valToPos(10, scaleKey); + + let re = ( + valToPos(9, scaleKey) - _10 >= minSpace ? RE_ALL : + valToPos(7, scaleKey) - _10 >= minSpace ? RE_12357 : + valToPos(5, scaleKey) - _10 >= minSpace ? RE_125 : + RE_1 + ); + + return splits.map(v => re.test(v) ? v : null); +} + +function numSeriesVal(self, val) { + return val == null ? "" : fmtNum(val); +} + +const yAxisOpts = { + show: true, + scale: "y", + space: 30, + gap: 5, + size: 50, + labelSize: 30, + labelFont, + side: 3, +// class: "y-vals", +// incrs: numIncrs, +// values: (vals, space) => vals, +// filter: retArg1, + grid, + ticks, + font, + rotate: 0, +}; + +// takes stroke width +function ptDia(width, mult) { + let dia = 3 + (width || 1) * 2; + return roundDec(dia * mult, 3); +} + +function seriesPoints(self, si) { + const s = self.series[si]; + const dia = ptDia(s.width, pxRatio); + let maxPts = self.bbox.width / (s.points.space * pxRatio); + let idxs = self.series[0].idxs; + return idxs[1] - idxs[0] <= maxPts; +} + +function seriesFillTo(self, seriesIdx, dataMin, dataMax) { + let scale = self.scales[self.series[seriesIdx].scale]; + return scale.distr == 3 ? scale.min : 0; +} + +const ySeriesOpts = { + scale: "y", + auto: true, + sorted: 0, + show: true, + band: false, + spanGaps: false, + isGap: (self, seriesIdx, dataIdx) => true, + alpha: 1, + points: { + show: seriesPoints, + // stroke: "#000", + // fill: "#fff", + // width: 1, + // size: 10, + }, +// label: "Value", +// value: v => v, + values: null, + + // internal caches + min: inf, + max: -inf, + idxs: [], + + path: null, + clip: null, +}; + +const xScaleOpts = { + time: true, + auto: true, + distr: 1, + log: 10, + min: null, + max: null, +}; + +const yScaleOpts = assign({}, xScaleOpts, { + time: false, +}); + +const syncs = {}; + +function _sync(opts) { + let clients = []; + + return { + sub(client) { + clients.push(client); + }, + unsub(client) { + clients = clients.filter(c => c != client); + }, + pub(type, self, x, y, w, h, i) { + if (clients.length > 1) { + clients.forEach(client => { + client != self && client.pub(type, self, x, y, w, h, i); + }); + } + } + }; +} + +function setDefaults(d, xo, yo, initY) { + let d2 = initY ? [d[0], d[1]].concat(d.slice(2)) : [d[0]].concat(d.slice(1)); + return d2.map((o, i) => setDefault(o, i, xo, yo)); +} + +function setDefault(o, i, xo, yo) { + return assign({}, (i == 0 || o && o.side % 2 == 0 ? xo : yo), o); +} + +function getValPct(val, scale) { + return ( + scale.distr == 3 + ? log10(val / scale.min) / log10(scale.max / scale.min) + : (val - scale.min) / (scale.max - scale.min) + ); +} + +function getYPos(val, scale, hgt, top) { + let pctY = getValPct(val, scale); + return top + (1 - pctY) * hgt; +} + +function getXPos(val, scale, wid, lft) { + let pctX = getValPct(val, scale); + return lft + pctX * wid; +} + +const nullMinMax = [null, null]; + +function snapNumX(self, dataMin, dataMax) { + return dataMin == null ? nullMinMax : [dataMin, dataMax]; +} + +const snapTimeX = snapNumX; + +// this ensures that non-temporal/numeric y-axes get multiple-snapped padding added above/below +// TODO: also account for incrs when snapping to ensure top of axis gets a tick & value +function snapNumY(self, dataMin, dataMax) { + return dataMin == null ? nullMinMax : rangeNum(dataMin, dataMax, 0.1, true); +} + +function snapLogY(self, dataMin, dataMax, scale) { + return dataMin == null ? nullMinMax : rangeLog(dataMin, dataMax, self.scales[scale].log, false); +} + +const snapLogX = snapLogY; + +// dim is logical (getClientBoundingRect) pixels, not canvas pixels +function findIncr(min, max, incrs, dim, minSpace) { + let pxPerUnit = dim / (max - min); + + let minDec = (""+floor(min)).length; + + for (var i = 0; i < incrs.length; i++) { + let space = incrs[i] * pxPerUnit; + + let incrDec = incrs[i] < 10 ? fixedDec.get(incrs[i]) : 0; + + if (space >= minSpace && minDec + incrDec < 17) + return [incrs[i], space]; + } + + return [0, 0]; +} + +function pxRatioFont(font) { + let fontSize; + font = font.replace(/(\d+)px/, (m, p1) => (fontSize = round(p1 * pxRatio)) + 'px'); + return [font, fontSize]; +} + +function uPlot(opts, data, then) { + const self = {}; + + let ready = false; + self.status = 0; + + const root = self.root = placeDiv(UPLOT); + + if (opts.id != null) + root.id = opts.id; + + addClass(root, opts.class); + + if (opts.title) { + let title = placeDiv(TITLE, root); + title.textContent = opts.title; + } + + const can = placeTag("canvas"); + const ctx = self.ctx = can.getContext("2d"); + + const wrap = placeDiv(WRAP, root); + const under = placeDiv(UNDER, wrap); + wrap.appendChild(can); + const over = placeDiv(OVER, wrap); + + opts = copy(opts); + + (opts.plugins || []).forEach(p => { + if (p.opts) + opts = p.opts(self, opts) || opts; + }); + + + + const series = self.series = setDefaults(opts.series || [], xSeriesOpts, ySeriesOpts, false); + const axes = self.axes = setDefaults(opts.axes || [], xAxisOpts, yAxisOpts, true); + const scales = self.scales = {}; + + const xScaleKey = series[0].scale; + + function initScale(scaleKey) { + let sc = scales[scaleKey]; + + if (sc == null) { + let scaleOpts = (opts.scales || EMPTY_OBJ)[scaleKey] || EMPTY_OBJ; + + if (scaleOpts.from != null) { + // ensure parent is initialized + initScale(scaleOpts.from); + // dependent scales inherit + scales[scaleKey] = assign({}, scales[scaleOpts.from], scaleOpts); + } + else { + sc = scales[scaleKey] = assign({}, (scaleKey == xScaleKey ? xScaleOpts : yScaleOpts), scaleOpts); + + let isTime = sc.time; + let isLog = sc.distr == 3; + + let rn = sc.range; + + if (scaleKey != xScaleKey && !isArr(rn) && isObj(rn)) { + let cfg = rn; + // this is similar to snapNumY + rn = (self, dataMin, dataMax) => dataMin == null ? nullMinMax : rangeNum(dataMin, dataMax, cfg); + } + + sc.range = fnOrSelf(rn || (isTime ? snapTimeX : scaleKey == xScaleKey ? (isLog ? snapLogX : snapNumX) : (isLog ? snapLogY : snapNumY))); + + sc.auto = fnOrSelf(sc.auto); + } + } + } + + initScale("x"); + initScale("y"); + + series.forEach((s, i) => { + initScale(s.scale); + }); + + for (let k in opts.scales) + initScale(k); + + const xScaleDistr = scales[xScaleKey].distr; + + const pendScales = {}; + + // explicitly-set initial scales + for (let k in scales) { + let sc = scales[k]; + + if (sc.min != null || sc.max != null) + pendScales[k] = {min: sc.min, max: sc.max}; + } + + const gutters = self.gutters = assign({ + x: round(yAxisOpts.size / 2), + y: round(xAxisOpts.size / 3), + _x: null, + _y: null, + }, opts.gutters); + + gutters.x = fnOrSelf(gutters.x); + gutters.y = fnOrSelf(gutters.y); + gutters._x = gutters.x(self); + gutters._y = gutters.y(self); + +// self.tz = opts.tz || Intl.DateTimeFormat().resolvedOptions().timeZone; + const _tzDate = (opts.tzDate || (ts => new Date(ts * 1e3))); + const _fmtDate = (opts.fmtDate || fmtDate); + + const _timeAxisSplits = timeAxisSplits(_tzDate); + const _timeAxisVals = timeAxisVals(_tzDate, timeAxisStamps(_timeAxisStamps, _fmtDate)); + const _timeSeriesVal = timeSeriesVal(_tzDate, timeSeriesStamp(_timeSeriesStamp, _fmtDate)); + + const legend = assign({show: true, live: true}, opts.legend); + const showLegend = legend.show; + + let legendEl; + let legendRows = []; + let legendCols; + let multiValLegend = false; + + if (showLegend) { + legendEl = placeTag("table", LEGEND, root); + + const getMultiVals = series[1] ? series[1].values : null; + multiValLegend = getMultiVals != null; + + if (multiValLegend) { + let head = placeTag("tr", LEGEND_THEAD, legendEl); + placeTag("th", null, head); + legendCols = getMultiVals(self, 1, 0); + + for (var key in legendCols) + placeTag("th", LEGEND_LABEL, head).textContent = key; + } + else { + legendCols = {_: 0}; + addClass(legendEl, LEGEND_INLINE); + legend.live && addClass(legendEl, LEGEND_LIVE); + } + } + + function initLegendRow(s, i) { + if (i == 0 && (multiValLegend || !legend.live)) + return null; + + let _row = []; + + let row = placeTag("tr", LEGEND_SERIES, legendEl, legendEl.childNodes[i]); + + addClass(row, s.class); + + if (!s.show) + addClass(row, OFF); + + let label = placeTag("th", null, row); + + let indic = placeDiv(LEGEND_MARKER, label); + indic.style.borderColor = s.width ? s.stroke : i > 0 && s.points.width ? s.points.stroke : null; + indic.style.backgroundColor = s.fill || null; + + let text = placeDiv(LEGEND_LABEL, label); + text.textContent = s.label; + + if (i > 0) { + onMouse("click", label, e => { + if ( cursor._lock) + return; + + setSeries(series.indexOf(s), {show: !s.show}, syncOpts.setSeries); + }); + + if (cursorFocus) { + onMouse(mouseenter, label, e => { + if (cursor._lock) + return; + + setSeries(series.indexOf(s), {focus: true}, syncOpts.setSeries); + }); + } + } + + for (var key in legendCols) { + let v = placeTag("td", LEGEND_VALUE, row); + v.textContent = "--"; + _row.push(v); + } + + return _row; + } + + const mouseListeners = new Map(); + + function onMouse(ev, targ, fn) { + const targListeners = mouseListeners.get(targ) || {}; + const listener = cursor.bind[ev](self, targ, fn); + + if (listener) { + on(ev, targ, targListeners[ev] = listener); + mouseListeners.set(targ, targListeners); + } + } + + function offMouse(ev, targ, fn) { + const targListeners = mouseListeners.get(targ) || {}; + off(ev, targ, targListeners[ev]); + targListeners[ev] = null; + } + + let fullWidCss = 0; + let fullHgtCss = 0; + + let plotWidCss = 0; + let plotHgtCss = 0; + + // plot margins to account for axes + let plotLftCss = 0; + let plotTopCss = 0; + + let plotLft = 0; + let plotTop = 0; + let plotWid = 0; + let plotHgt = 0; + + self.bbox = {}; + + let shouldSetScales = false; + let shouldSetSize = false; + let shouldConvergeSize = false; + let shouldSetCursor = false; + let shouldSetLegend = false; + + function _setSize(width, height) { + if (width != self.width || height != self.height) + calcSize(width, height); + + resetYSeries(false); + + shouldConvergeSize = true; + shouldSetSize = true; + shouldSetCursor = true; + shouldSetLegend = true; + commit(); + } + + function calcSize(width, height) { + // log("calcSize()", arguments); + + self.width = fullWidCss = plotWidCss = width; + self.height = fullHgtCss = plotHgtCss = height; + plotLftCss = plotTopCss = 0; + + calcPlotRect(); + calcAxesRects(); + + let bb = self.bbox; + + plotLft = bb[LEFT] = incrRound(plotLftCss * pxRatio, 0.5); + plotTop = bb[TOP] = incrRound(plotTopCss * pxRatio, 0.5); + plotWid = bb[WIDTH] = incrRound(plotWidCss * pxRatio, 0.5); + plotHgt = bb[HEIGHT] = incrRound(plotHgtCss * pxRatio, 0.5); + } + + function convergeSize() { + let converged = false; + + while (!converged) { + let axesConverged = axesCalc(); + let guttersConverged = guttersCalc(); + + converged = axesConverged && guttersConverged; + + if (!converged) { + calcSize(self.width, self.height); + shouldSetSize = true; + } + } + } + + function setSize({width, height}) { + _setSize(width, height); + } + + self.setSize = setSize; + + // accumulate axis offsets, reduce canvas width + function calcPlotRect() { + // easements for edge labels + let hasTopAxis = false; + let hasBtmAxis = false; + let hasRgtAxis = false; + let hasLftAxis = false; + + axes.forEach((axis, i) => { + if (axis.show && axis._show) { + let {side, _size} = axis; + let isVt = side % 2; + let labelSize = axis.labelSize = (axis.label != null ? (axis.labelSize || 30) : 0); + + let fullSize = _size + labelSize; + + if (fullSize > 0) { + if (isVt) { + plotWidCss -= fullSize; + + if (side == 3) { + plotLftCss += fullSize; + hasLftAxis = true; + } + else + hasRgtAxis = true; + } + else { + plotHgtCss -= fullSize; + + if (side == 0) { + plotTopCss += fullSize; + hasTopAxis = true; + } + else + hasBtmAxis = true; + } + } + } + }); + + // hz gutters + if (hasTopAxis || hasBtmAxis) { + if (!hasRgtAxis) + plotWidCss -= gutters._x; + if (!hasLftAxis) { + plotWidCss -= gutters._x; + plotLftCss += gutters._x; + } + } + + // vt gutters + if (hasLftAxis || hasRgtAxis) { + if (!hasBtmAxis) + plotHgtCss -= gutters._y; + if (!hasTopAxis) { + plotHgtCss -= gutters._y; + plotTopCss += gutters._y; + } + } + } + + function calcAxesRects() { + // will accum + + let off1 = plotLftCss + plotWidCss; + let off2 = plotTopCss + plotHgtCss; + // will accum - + let off3 = plotLftCss; + let off0 = plotTopCss; + + function incrOffset(side, size) { + + switch (side) { + case 1: off1 += size; return off1 - size; + case 2: off2 += size; return off2 - size; + case 3: off3 -= size; return off3 + size; + case 0: off0 -= size; return off0 + size; + } + } + + axes.forEach((axis, i) => { + if (axis.show && axis._show) { + let side = axis.side; + + axis._pos = incrOffset(side, axis._size); + + if (axis.label != null) + axis._lpos = incrOffset(side, axis.labelSize); + } + }); + } + + const cursor = (self.cursor = assign({}, cursorOpts, opts.cursor)); + + (cursor._lock = false); + (cursor.points.show = fnOrSelf(cursor.points.show)); + + const focus = self.focus = assign({}, opts.focus || {alpha: 0.3}, cursor.focus); + const cursorFocus = focus.prox >= 0; + + // series-intersection markers + let cursorPts = [null]; + + function initCursorPt(s, si) { + if (si > 0) { + let pt = cursor.points.show(self, si); + + if (pt) { + addClass(pt, CURSOR_PT); + addClass(pt, s.class); + trans(pt, -10, -10, plotWidCss, plotHgtCss); + over.insertBefore(pt, cursorPts[si]); + + return pt; + } + } + } + + function initSeries(s, i) { + let isTime = scales[s.scale].time; + + let sv = s.value; + s.value = isTime ? (isStr(sv) ? timeSeriesVal(_tzDate, timeSeriesStamp(sv, _fmtDate)) : sv || _timeSeriesVal) : sv || numSeriesVal; + s.label = s.label || (isTime ? timeSeriesLabel : numSeriesLabel); + + if (i > 0) { + s.width = s.width == null ? 1 : s.width; + s.paths = s.paths || ( buildPaths); + s.fillTo = s.fillTo || seriesFillTo; + let _ptDia = ptDia(s.width, 1); + s.points = assign({}, { + size: _ptDia, + width: max(1, _ptDia * .2), + stroke: s.stroke, + space: _ptDia * 2, + }, s.points); + s.points.show = fnOrSelf(s.points.show); + s._paths = null; + } + + if (showLegend) + legendRows.splice(i, 0, initLegendRow(s, i)); + + if ( cursor.show) { + let pt = initCursorPt(s, i); + pt && cursorPts.splice(i, 0, pt); + } + } + + function addSeries(opts, si) { + si = si == null ? series.length : si; + + opts = setDefault(opts, si, xSeriesOpts, ySeriesOpts); + series.splice(si, 0, opts); + initSeries(series[si], si); + } + + self.addSeries = addSeries; + + function delSeries(i) { + series.splice(i, 1); + showLegend && legendRows.splice(i, 1)[0][0].parentNode.remove(); + cursorPts.length > 1 && cursorPts.splice(i, 1)[0].remove(); + + // TODO: de-init no-longer-needed scales? + } + + self.delSeries = delSeries; + + series.forEach(initSeries); + + function initAxis(axis, i) { + axis._show = axis.show; + + if (axis.show) { + let isVt = axis.side % 2; + + let sc = scales[axis.scale]; + + // this can occur if all series specify non-default scales + if (sc == null) { + axis.scale = isVt ? series[1].scale : xScaleKey; + sc = scales[axis.scale]; + } + + // also set defaults for incrs & values based on axis distr + let isTime = sc.time; + + axis.size = fnOrSelf(axis.size); + axis.space = fnOrSelf(axis.space); + axis.rotate = fnOrSelf(axis.rotate); + axis.incrs = fnOrSelf(axis.incrs || ( sc.distr == 2 ? wholeIncrs : (isTime ? timeIncrs : numIncrs))); + axis.splits = fnOrSelf(axis.splits || (isTime && sc.distr == 1 ? _timeAxisSplits : sc.distr == 3 ? logAxisSplits : numAxisSplits)); + + let av = axis.values; + axis.values = ( + isTime ? ( + isArr(av) ? + timeAxisVals(_tzDate, timeAxisStamps(av, _fmtDate)) : + isStr(av) ? + timeAxisVal(_tzDate, av) : + av || _timeAxisVals + ) : av || numAxisVals + ); + + axis.filter = fnOrSelf(axis.filter || ( sc.distr == 3 ? logAxisValsFilt : retArg1)); + + axis.font = pxRatioFont(axis.font); + axis.labelFont = pxRatioFont(axis.labelFont); + + axis._size = axis.size(self, null, i); + + axis._space = + axis._rotate = + axis._incrs = + axis._found = // foundIncrSpace + axis._splits = + axis._values = null; + } + } + + // set axis defaults + axes.forEach(initAxis); + + let dataLen; + let dataIsGap; + + // rendered data window + let i0 = null; + let i1 = null; + const idxs = series[0].idxs; + + let data0 = null; + + let viaAutoScaleX = false; + + function setData(_data, _resetScales) { + if (!isArr(_data) && isObj(_data)) { + dataIsGap = _data.isGap; + _data = _data.data; + } + + _data = _data || []; + _data[0] = _data[0] || []; + + self.data = _data; + data = _data.slice(); + data0 = data[0]; + dataLen = data0.length; + + if (xScaleDistr == 2) + data[0] = data0.map((v, i) => i); + + resetYSeries(true); + + fire("setData"); + + if (_resetScales !== false) { + let xsc = scales[xScaleKey]; + + if (xsc.auto(self, viaAutoScaleX)) + autoScaleX(); + else + _setScale(xScaleKey, xsc.min, xsc.max); + + shouldSetCursor = true; + shouldSetLegend = true; + commit(); + } + } + + self.setData = setData; + + function autoScaleX() { + viaAutoScaleX = true; + + let _min, _max; + + if (dataLen > 0) { + i0 = idxs[0] = 0; + i1 = idxs[1] = dataLen - 1; + + _min = data[0][i0]; + _max = data[0][i1]; + + if (xScaleDistr == 2) { + _min = i0; + _max = i1; + } + else if (dataLen == 1) { + if (xScaleDistr == 3) + [_min, _max] = rangeLog(_min, _min, scales[xScaleKey].log, false); + else if (scales[xScaleKey].time) + _max = _min + 86400; + else + [_min, _max] = rangeNum(_min, _max, 0.1, true); + } + } + else { + i0 = idxs[0] = _min = null; + i1 = idxs[1] = _max = null; + } + + _setScale(xScaleKey, _min, _max); + + viaAutoScaleX = false; + } + + function setCtxStyle(stroke, width, dash, fill) { + ctx.strokeStyle = stroke || transparent; + ctx.lineWidth = width; + ctx.lineJoin = "round"; + ctx.setLineDash(dash || []); + ctx.fillStyle = fill || transparent; + } + + function setScales() { + // log("setScales()", arguments); + + // wip scales + let wipScales = copy(scales); + + for (let k in wipScales) { + let wsc = wipScales[k]; + let psc = pendScales[k]; + + if (psc != null && psc.min != null) { + assign(wsc, psc); + + // explicitly setting the x-scale invalidates everything (acts as redraw) + if (k == xScaleKey) + resetYSeries(true); + } + else if (k != xScaleKey) { + if (dataLen == 0 && wsc.from == null) { + let minMax = wsc.range(self, null, null, k); + wsc.min = minMax[0]; + wsc.max = minMax[1]; + } + else { + wsc.min = inf; + wsc.max = -inf; + } + } + } + + if (dataLen > 0) { + // pre-range y-scales from y series' data values + series.forEach((s, i) => { + let k = s.scale; + let wsc = wipScales[k]; + let psc = pendScales[k]; + + if (i == 0) { + let minMax = wsc.range(self, wsc.min, wsc.max, k); + + wsc.min = minMax[0]; + wsc.max = minMax[1]; + + i0 = closestIdx(wsc.min, data[0]); + i1 = closestIdx(wsc.max, data[0]); + + // closest indices can be outside of view + if (data[0][i0] < wsc.min) + i0++; + if (data[0][i1] > wsc.max) + i1--; + + s.min = data0[i0]; + s.max = data0[i1]; + } + else if (s.show && s.auto && wsc.auto(self, viaAutoScaleX) && (psc == null || psc.min == null)) { + // only run getMinMax() for invalidated series data, else reuse + let minMax = s.min == null ? getMinMax(data[i], i0, i1, s.sorted) : [s.min, s.max]; + + // initial min/max + wsc.min = min(wsc.min, s.min = minMax[0]); + wsc.max = max(wsc.max, s.max = minMax[1]); + } + + s.idxs[0] = i0; + s.idxs[1] = i1; + }); + + // range independent scales + for (let k in wipScales) { + let wsc = wipScales[k]; + let psc = pendScales[k]; + + if (wsc.from == null && (psc == null || psc.min == null)) { + let minMax = wsc.range( + self, + wsc.min == inf ? null : wsc.min, + wsc.max == -inf ? null : wsc.max, + k + ); + wsc.min = minMax[0]; + wsc.max = minMax[1]; + } + } + } + + // range dependent scales + for (let k in wipScales) { + let wsc = wipScales[k]; + + if (wsc.from != null) { + let base = wipScales[wsc.from]; + let minMax = wsc.range(self, base.min, base.max, k); + wsc.min = minMax[0]; + wsc.max = minMax[1]; + } + } + + let changed = {}; + let anyChanged = false; + + for (let k in wipScales) { + let wsc = wipScales[k]; + let sc = scales[k]; + + if (sc.min != wsc.min || sc.max != wsc.max) { + sc.min = wsc.min; + sc.max = wsc.max; + changed[k] = anyChanged = true; + } + } + + if (anyChanged) { + // invalidate paths of all series on changed scales + series.forEach(s => { + if (changed[s.scale]) + s._paths = null; + }); + + for (let k in changed) { + shouldConvergeSize = true; + fire("setScale", k); + } + + if ( cursor.show) + shouldSetCursor = true; + } + + for (let k in pendScales) + pendScales[k] = null; + } + + // TODO: drawWrap(si, drawPoints) (save, restore, translate, clip) + + function drawPoints(si) { + // log("drawPoints()", arguments); + + let s = series[si]; + let p = s.points; + + const width = roundDec(p.width * pxRatio, 3); + const offset = (width % 2) / 2; + const isStroked = p.width > 0; + + let rad = (p.size - p.width) / 2 * pxRatio; + let dia = roundDec(rad * 2, 3); + + ctx.translate(offset, offset); + + ctx.save(); + + ctx.beginPath(); + ctx.rect( + plotLft - dia, + plotTop - dia, + plotWid + dia * 2, + plotHgt + dia * 2, + ); + ctx.clip(); + + ctx.globalAlpha = s.alpha; + + const path = new Path2D(); + + for (let pi = i0; pi <= i1; pi++) { + if (data[si][pi] != null) { + let x = round(getXPos(data[0][pi], scales[xScaleKey], plotWid, plotLft)); + let y = round(getYPos(data[si][pi], scales[s.scale], plotHgt, plotTop)); + + path.moveTo(x + rad, y); + path.arc(x, y, rad, 0, PI * 2); + } + } + + setCtxStyle( + p.stroke, + width, + null, + p.fill || (isStroked ? "#fff" : s.stroke), + ); + + ctx.fill(path); + isStroked && ctx.stroke(path); + + ctx.globalAlpha = 1; + + ctx.restore(); + + ctx.translate(-offset, -offset); + } + + // grabs the nearest indices with y data outside of x-scale limits + function getOuterIdxs(ydata) { + let _i0 = clamp(i0 - 1, 0, dataLen - 1); + let _i1 = clamp(i1 + 1, 0, dataLen - 1); + + while (ydata[_i0] == null && _i0 > 0) + _i0--; + + while (ydata[_i1] == null && _i1 < dataLen - 1) + _i1++; + + return [_i0, _i1]; + } + + let dir = 1; + + function drawSeries() { + // path building loop must be before draw loop to ensure that all bands are fully constructed + series.forEach((s, i) => { + if (i > 0 && s.show && s._paths == null) { + let _idxs = getOuterIdxs(data[i]); + s._paths = s.paths(self, i, _idxs[0], _idxs[1]); + } + }); + + series.forEach((s, i) => { + if (i > 0 && s.show) { + if (s._paths) + drawPath(i); + + if (s.points.show(self, i, i0, i1)) + drawPoints(i); + + fire("drawSeries", i); + } + }); + } + + function drawPath(si) { + const s = series[si]; + + if (dir == 1) { + const { stroke, fill, clip } = s._paths; + const width = roundDec(s[WIDTH] * pxRatio, 3); + const offset = (width % 2) / 2; + + setCtxStyle(s.stroke, width, s.dash, s.fill); + + ctx.globalAlpha = s.alpha; + + ctx.translate(offset, offset); + + ctx.save(); + + let lft = plotLft, + top = plotTop, + wid = plotWid, + hgt = plotHgt; + + let halfWid = width * pxRatio / 2; + + if (s.min == 0) + hgt += halfWid; + + if (s.max == 0) { + top -= halfWid; + hgt += halfWid; + } + + ctx.beginPath(); + ctx.rect(lft, top, wid, hgt); + ctx.clip(); + + if (clip != null) + ctx.clip(clip); + + if (s.band) { + ctx.fill(stroke); + width && ctx.stroke(stroke); + } + else { + width && ctx.stroke(stroke); + + if (s.fill != null) + ctx.fill(fill); + } + + ctx.restore(); + + ctx.translate(-offset, -offset); + + ctx.globalAlpha = 1; + } + + if (s.band) + dir *= -1; + } + + function buildClip(is, gaps, nullHead, nullTail) { + let s = series[is]; + + let clip = null; + + // create clip path (invert gaps and non-gaps) + if (gaps.length > 0 && !s.spanGaps) { + clip = new Path2D(); + + let prevGapEnd = plotLft; + + for (let i = 0; i < gaps.length; i++) { + let g = gaps[i]; + + clip.rect(prevGapEnd, plotTop, g[0] - prevGapEnd, plotTop + plotHgt); + + prevGapEnd = g[1]; + } + + clip.rect(prevGapEnd, plotTop, plotLft + plotWid - prevGapEnd, plotTop + plotHgt); + } + + return clip; + } + + function addGap(gaps, fromX, toX) { + if (toX > fromX) { + let prevGap = gaps[gaps.length - 1]; + + if (prevGap && prevGap[0] == fromX) // TODO: gaps must be encoded at stroke widths? + prevGap[1] = toX; + else + gaps.push([fromX, toX]); + } + } + + function nonNullIdx(data, _i0, _i1, dir) { + for (let i = dir == 1 ? _i0 : _i1; i >= _i0 && i <= _i1; i += dir) { + if (data[i] != null) + return i; + } + + return -1; + } + + function buildPaths(self, is, _i0, _i1) { + const s = series[is]; + const isGap = dataIsGap || s.isGap; + + const xdata = data[0]; + const ydata = data[is]; + const scaleX = scales[xScaleKey]; + const scaleY = scales[s.scale]; + + const _paths = dir == 1 ? {stroke: new Path2D(), fill: null, clip: null} : series[is-1]._paths; + const stroke = _paths.stroke; + const width = roundDec(s[WIDTH] * pxRatio, 3); + + let minY = inf, + maxY = -inf, + outY, outX; + + // todo: don't build gaps on dir = -1 pass + let gaps = []; + + let accX = round(getXPos(xdata[dir == 1 ? _i0 : _i1], scaleX, plotWid, plotLft)); + let accGaps = false; + + // data edges + let lftIdx = nonNullIdx(ydata, _i0, _i1, 1); + let rgtIdx = nonNullIdx(ydata, _i0, _i1, -1); + let lftX = incrRound(getXPos(xdata[lftIdx], scaleX, plotWid, plotLft), 0.5); + let rgtX = incrRound(getXPos(xdata[rgtIdx], scaleX, plotWid, plotLft), 0.5); + + if (lftX > plotLft) + addGap(gaps, plotLft, lftX); + + // the moves the shape edge outside the canvas so stroke doesnt bleed in + if (s.band && dir == 1) + stroke.lineTo(lftX - width * 2, round(getYPos(ydata[_i0], scaleY, plotHgt, plotTop))); + + for (let i = dir == 1 ? _i0 : _i1; i >= _i0 && i <= _i1; i += dir) { + let x = round(getXPos(xdata[i], scaleX, plotWid, plotLft)); + + if (x == accX) { + if (ydata[i] != null) { + outY = round(getYPos(ydata[i], scaleY, plotHgt, plotTop)); + minY = min(outY, minY); + maxY = max(outY, maxY); + } + else if (!accGaps && isGap(self, is, i)) + accGaps = true; + } + else { + let _addGap = false; + + if (minY != inf) { + stroke.lineTo(accX, minY); + stroke.lineTo(accX, maxY); + stroke.lineTo(accX, outY); + outX = accX; + } + else if (accGaps) { + _addGap = true; + accGaps = false; + } + + if (ydata[i] != null) { + outY = round(getYPos(ydata[i], scaleY, plotHgt, plotTop)); + stroke.lineTo(x, outY); + minY = maxY = outY; + + // prior pixel can have data but still start a gap if ends with null + if (x - accX > 1 && ydata[i-1] == null && isGap(self, is, i-1)) + _addGap = true; + } + else { + minY = inf; + maxY = -inf; + + if (!accGaps && isGap(self, is, i)) + accGaps = true; + } + + _addGap && addGap(gaps, outX, x); + + accX = x; + } + } + + if (rgtX < plotLft + plotWid) + addGap(gaps, rgtX, plotLft + plotWid); + + if (s.band) { + let _x, _iy, ydata2; + + // the moves the shape edge outside the canvas so stroke doesnt bleed in + if (dir == 1) { + _x = rgtX + width * 2; + _iy = rgtIdx; + ydata2 = data[is + 1]; + } + else { + _x = lftX - width * 2; + _iy = lftIdx; + ydata2 = data[is - 1]; + } + + stroke.lineTo(_x, round(getYPos(ydata[_iy], scaleY, plotHgt, plotTop))); + stroke.lineTo(_x, round(getYPos(ydata2[_iy], scaleY, plotHgt, plotTop))); + } + + if (dir == 1) { + _paths.clip = buildClip(is, gaps, ydata[_i0] == null, ydata[_i1] == null); + + if (s.fill != null) { + let fill = _paths.fill = new Path2D(stroke); + + let fillTo = round(getYPos(s.fillTo(self, is, s.min, s.max), scaleY, plotHgt, plotTop)); + fill.lineTo(rgtX, fillTo); + fill.lineTo(lftX, fillTo); + } + } + + if (s.band) + dir *= -1; + + return _paths; + } + + self.paths = buildPaths; + + function getIncrSpace(axisIdx, min, max, fullDim) { + let axis = axes[axisIdx]; + + let incrSpace; + + if (fullDim <= 0) + incrSpace = [0, 0]; + else { + let minSpace = axis._space = axis.space(self, axisIdx, min, max, fullDim); + let incrs = axis._incrs = axis.incrs(self, axisIdx, min, max, fullDim, minSpace); + incrSpace = axis._found = findIncr(min, max, incrs, fullDim, minSpace); + } + + return incrSpace; + } + + function drawOrthoLines(offs, filts, ori, side, pos0, len, width, stroke, dash) { + let offset = (width % 2) / 2; + + ctx.translate(offset, offset); + + setCtxStyle(stroke, width, dash); + + ctx.beginPath(); + + let x0, y0, x1, y1, pos1 = pos0 + (side == 0 || side == 3 ? -len : len); + + if (ori == 0) { + y0 = pos0; + y1 = pos1; + } + else { + x0 = pos0; + x1 = pos1; + } + + offs.forEach((off, i) => { + if (filts[i] == null) + return; + + if (ori == 0) + x0 = x1 = off; + else + y0 = y1 = off; + + ctx.moveTo(x0, y0); + ctx.lineTo(x1, y1); + }); + + ctx.stroke(); + + ctx.translate(-offset, -offset); + } + + function axesCalc() { + // log("axesCalc()", arguments); + + let converged = true; + + axes.forEach((axis, i) => { + if (!axis.show) + return; + + let scale = scales[axis.scale]; + + if (scale.min == null) { + if (axis._show) { + converged = false; + axis._show = false; + resetYSeries(false); + } + return; + } + else { + if (!axis._show) { + converged = false; + axis._show = true; + resetYSeries(false); + } + } + + let side = axis.side; + let ori = side % 2; + + let {min, max} = scale; // // should this toggle them ._show = false + + let [_incr, _space] = getIncrSpace(i, min, max, ori == 0 ? plotWidCss : plotHgtCss); + + if (_space == 0) + return; + + // if we're using index positions, force first tick to match passed index + let forceMin = scale.distr == 2; + + let _splits = axis._splits = axis.splits(self, i, min, max, _incr, _space, forceMin); + + // tick labels + // BOO this assumes a specific data/series + let splits = scale.distr == 2 ? _splits.map(i => data0[i]) : _splits; + let incr = scale.distr == 2 ? data0[_splits[1]] - data0[_splits[0]] : _incr; + + let values = axis._values = axis.values(self, axis.filter(self, splits, i, _space, incr), i, _space, incr); + + // rotating of labels only supported on bottom x axis + axis._rotate = side == 2 ? axis.rotate(self, values, i, _space) : 0; + + let oldSize = axis._size; + + axis._size = axis.size(self, values, i); + + if (oldSize != null && axis._size != oldSize) // ready && ? + converged = false; + }); + + return converged; + } + + function guttersCalc() { + let converged = true; + + let {_x, _y} = gutters; + + gutters._x = gutters.x(self); + gutters._y = gutters.y(self); + + if (gutters._x != _x || gutters._y != _y) + converged = false; + + return converged; + } + + function drawAxesGrid() { + axes.forEach((axis, i) => { + if (!axis.show || !axis._show) + return; + + let scale = scales[axis.scale]; + let side = axis.side; + let ori = side % 2; + + let getPos = ori == 0 ? getXPos : getYPos; + let plotDim = ori == 0 ? plotWid : plotHgt; + let plotOff = ori == 0 ? plotLft : plotTop; + + let axisGap = round(axis.gap * pxRatio); + + let ticks = axis.ticks; + let tickSize = ticks.show ? round(ticks.size * pxRatio) : 0; + + let [_incr, _space] = axis._found; + let _splits = axis._splits; + + // tick labels + // BOO this assumes a specific data/series + let splits = scale.distr == 2 ? _splits.map(i => data0[i]) : _splits; + let incr = scale.distr == 2 ? data0[_splits[1]] - data0[_splits[0]] : _incr; + + // rotating of labels only supported on bottom x axis + let angle = axis._rotate * -PI/180; + + let basePos = round(axis._pos * pxRatio); + let shiftAmt = tickSize + axisGap; + let shiftDir = ori == 0 && side == 0 || ori == 1 && side == 3 ? -1 : 1; + let finalPos = basePos + shiftAmt * shiftDir; + let y = ori == 0 ? finalPos : 0; + let x = ori == 1 ? finalPos : 0; + + ctx.font = axis.font[0]; + ctx.fillStyle = axis.stroke || hexBlack; // rgba? + ctx.textAlign = axis.align == 1 ? LEFT : + axis.align == 2 ? RIGHT : + angle > 0 ? LEFT : + angle < 0 ? RIGHT : + ori == 0 ? "center" : side == 3 ? RIGHT : LEFT; + ctx.textBaseline = angle || + ori == 1 ? "middle" : side == 2 ? TOP : BOTTOM; + + let lineHeight = axis.font[1] * lineMult; + + let canOffs = _splits.map(val => round(getPos(val, scale, plotDim, plotOff))); + + axis._values.forEach((val, i) => { + if (val == null) + return; + + if (ori == 0) + x = canOffs[i]; + else + y = canOffs[i]; + + (""+val).split(/\n/gm).forEach((text, j) => { + if (angle) { + ctx.save(); + ctx.translate(x, y + j * lineHeight); + ctx.rotate(angle); + ctx.fillText(text, 0, 0); + ctx.restore(); + } + else + ctx.fillText(text, x, y + j * lineHeight); + }); + }); + + // axis label + if (axis.label) { + ctx.save(); + + let baseLpos = round(axis._lpos * pxRatio); + + if (ori == 1) { + x = y = 0; + + ctx.translate( + baseLpos, + round(plotTop + plotHgt / 2), + ); + ctx.rotate((side == 3 ? -PI : PI) / 2); + + } + else { + x = round(plotLft + plotWid / 2); + y = baseLpos; + } + + ctx.font = axis.labelFont[0]; + // ctx.fillStyle = axis.labelStroke || hexBlack; // rgba? + ctx.textAlign = "center"; + ctx.textBaseline = side == 2 ? TOP : BOTTOM; + + ctx.fillText(axis.label, x, y); + + ctx.restore(); + } + + // ticks + if (ticks.show) { + drawOrthoLines( + canOffs, + ticks.filter(self, splits, i, _space, incr), + ori, + side, + basePos, + tickSize, + roundDec(ticks[WIDTH] * pxRatio, 3), + ticks.stroke, + ); + } + + // grid + let grid = axis.grid; + + if (grid.show) { + drawOrthoLines( + canOffs, + grid.filter(self, splits, i, _space, incr), + ori, + ori == 0 ? 2 : 1, + ori == 0 ? plotTop : plotLft, + ori == 0 ? plotHgt : plotWid, + roundDec(grid[WIDTH] * pxRatio, 3), + grid.stroke, + grid.dash, + ); + } + }); + + fire("drawAxes"); + } + + function resetYSeries(minMax) { + // log("resetYSeries()", arguments); + + series.forEach((s, i) => { + if (i > 0) { + s._paths = null; + + if (minMax) { + s.min = null; + s.max = null; + } + } + }); + } + + let queuedCommit = false; + + // could do rAF instead of microTask, or Promose.resolve().then() + function commit() { + if (!queuedCommit) { + microTask(_commit); + queuedCommit = true; + } + } + + function _commit() { + // log("_commit()", arguments); + + if (shouldSetScales) { + setScales(); + shouldSetScales = false; + } + + if (shouldConvergeSize) { + convergeSize(); + shouldConvergeSize = false; + } + + if (shouldSetSize) { + setStylePx(under, LEFT, plotLftCss); + setStylePx(under, TOP, plotTopCss); + setStylePx(under, WIDTH, plotWidCss); + setStylePx(under, HEIGHT, plotHgtCss); + + setStylePx(over, LEFT, plotLftCss); + setStylePx(over, TOP, plotTopCss); + setStylePx(over, WIDTH, plotWidCss); + setStylePx(over, HEIGHT, plotHgtCss); + + setStylePx(wrap, WIDTH, fullWidCss); + setStylePx(wrap, HEIGHT, fullHgtCss); + + can[WIDTH] = round(fullWidCss * pxRatio); + can[HEIGHT] = round(fullHgtCss * pxRatio); + + syncRect(); + + fire("setSize"); + + shouldSetSize = false; + } + + // if (shouldSetSelect) { + // TODO: update .u-select metrics (if visible) + // setStylePx(selectDiv, TOP, select[TOP] = 0); + // setStylePx(selectDiv, LEFT, select[LEFT] = 0); + // setStylePx(selectDiv, WIDTH, select[WIDTH] = 0); + // setStylePx(selectDiv, HEIGHT, select[HEIGHT] = 0); + // shouldSetSelect = false; + // } + + if ( cursor.show && shouldSetCursor) { + updateCursor(); + shouldSetCursor = false; + } + + // if (true && legend.show && legend.live && shouldSetLegend) {} + + if (fullWidCss > 0 && fullHgtCss > 0) { + ctx.clearRect(0, 0, can[WIDTH], can[HEIGHT]); + fire("drawClear"); + drawAxesGrid(); + dataLen > 0 && drawSeries(); + fire("draw"); + } + + if (!ready) { + ready = true; + self.status = 1; + + fire("ready"); + } + + queuedCommit = false; + } + + self.redraw = rebuildPaths => { + if (rebuildPaths !== false) + _setScale(xScaleKey, scales[xScaleKey].min, scales[xScaleKey].max); + else + commit(); + }; + + // redraw() => setScale('x', scales.x.min, scales.x.max); + + // explicit, never re-ranged (is this actually true? for x and y) + function setScale(key, opts) { + let sc = scales[key]; + + if (sc.from == null) { + if (dataLen == 0) { + let minMax = sc.range(self, opts.min, opts.max, key); + opts.min = minMax[0]; + opts.max = minMax[1]; + } + + if (dataLen > 1 && opts.min != null && opts.max != null && opts.max - opts.min < 1e-16) + return; + + if (key == xScaleKey) { + if (sc.distr == 2 && dataLen > 0) { + opts.min = closestIdx(opts.min, data[0]); + opts.max = closestIdx(opts.max, data[0]); + } + } + + // log("setScale()", arguments); + + pendScales[key] = opts; + + shouldSetScales = true; + commit(); + } + } + + self.setScale = setScale; + +// INTERACTION + + let vt; + let hz; + + // starting position before cursor.move + let rawMouseLeft0; + let rawMouseTop0; + + // starting position + let mouseLeft0; + let mouseTop0; + + // current position before cursor.move + let rawMouseLeft1; + let rawMouseTop1; + + // current position + let mouseLeft1; + let mouseTop1; + + let dragging = false; + + const drag = cursor.drag; + + let dragX = drag.x; + let dragY = drag.y; + + if ( cursor.show) { + if (cursor.x) { + mouseLeft1 = cursor.left; + vt = placeDiv(CURSOR_X, over); + } + + if (cursor.y) { + mouseTop1 = cursor.top; + hz = placeDiv(CURSOR_Y, over); + } + } + + const select = self.select = assign({ + show: true, + over: true, + left: 0, + width: 0, + top: 0, + height: 0, + }, opts.select); + + const selectDiv = select.show ? placeDiv(SELECT, select.over ? over : under) : null; + + function setSelect(opts, _fire) { + if (select.show) { + for (let prop in opts) + setStylePx(selectDiv, prop, select[prop] = opts[prop]); + + _fire !== false && fire("setSelect"); + } + } + + self.setSelect = setSelect; + + function toggleDOM(i, onOff) { + let s = series[i]; + let label = showLegend ? legendRows[i][0].parentNode : null; + + if (s.show) + label && remClass(label, OFF); + else { + label && addClass(label, OFF); + cursorPts.length > 1 && trans(cursorPts[i], -10, -10, plotWidCss, plotHgtCss); + } + } + + function _setScale(key, min, max) { + setScale(key, {min, max}); + } + + function setSeries(i, opts, pub) { + // log("setSeries()", arguments); + + let s = series[i]; + + // will this cause redundant commit() if both show and focus are set? + if (opts.focus != null) + setFocus(i); + + if (opts.show != null) { + s.show = opts.show; + toggleDOM(i, opts.show); + + if (s.band) { + // not super robust, will break if two bands are adjacent + let ip = series[i+1] && series[i+1].band ? i+1 : i-1; + series[ip].show = s.show; + toggleDOM(ip, opts.show); + } + + _setScale(s.scale, null, null); + commit(); + } + + fire("setSeries", i, opts); + + pub && sync.pub("setSeries", self, i, opts); + } + + self.setSeries = setSeries; + + function _alpha(i, value) { + series[i].alpha = value; + + if ( cursor.show && cursorPts[i]) + cursorPts[i].style.opacity = value; + + if ( showLegend && legendRows[i]) + legendRows[i][0].parentNode.style.opacity = value; + } + + function _setAlpha(i, value) { + let s = series[i]; + + _alpha(i, value); + + if (s.band) { + // not super robust, will break if two bands are adjacent + let ip = series[i+1].band ? i+1 : i-1; + _alpha(ip, value); + } + } + + // y-distance + let closestDist; + let closestSeries; + let focusedSeries; + + function setFocus(i) { + if (i != focusedSeries) { + // log("setFocus()", arguments); + + series.forEach((s, i2) => { + _setAlpha(i2, i == null || i2 == 0 || i2 == i ? 1 : focus.alpha); + }); + + focusedSeries = i; + commit(); + } + } + + if (showLegend && cursorFocus) { + on(mouseleave, legendEl, e => { + if (cursor._lock) + return; + setSeries(null, {focus: false}, syncOpts.setSeries); + updateCursor(); + }); + } + + function scaleValueAtPos(pos, scale) { + let dim = plotWidCss; + + if (scale != xScaleKey) { + dim = plotHgtCss; + pos = dim - pos; + } + + let pct = pos / dim; + + let sc = scales[scale], + _min = sc.min, + _max = sc.max; + + if (sc.distr == 3) { + _min = log10(_min); + _max = log10(_max); + return pow(10, _min + (_max - _min) * pct); + } + else + return _min + (_max - _min) * pct; + } + + function closestIdxFromXpos(pos) { + let v = scaleValueAtPos(pos, xScaleKey); + return closestIdx(v, data[0], i0, i1); + } + + self.valToIdx = val => closestIdx(val, data[0]); + self.posToIdx = closestIdxFromXpos; + self.posToVal = scaleValueAtPos; + self.valToPos = (val, scale, can) => ( + scale == xScaleKey ? + getXPos(val, scales[scale], + can ? plotWid : plotWidCss, + can ? plotLft : 0, + ) : + getYPos(val, scales[scale], + can ? plotHgt : plotHgtCss, + can ? plotTop : 0, + ) + ); + + // defers calling expensive functions + function batch(fn) { + fn(self); + commit(); + } + + self.batch = batch; + + (self.setCursor = opts => { + mouseLeft1 = opts.left; + mouseTop1 = opts.top; + // assign(cursor, opts); + updateCursor(); + }); + + let cursorRaf = 0; + + function updateCursor(ts, src) { + // ts == null && log("updateCursor()", arguments); + + cursorRaf = 0; + + rawMouseLeft1 = mouseLeft1; + rawMouseTop1 = mouseTop1; + + [mouseLeft1, mouseTop1] = cursor.move(self, mouseLeft1, mouseTop1); + + if (cursor.show) { + cursor.x && trans(vt, round(mouseLeft1), 0, plotWidCss, plotHgtCss); + cursor.y && trans(hz, 0, round(mouseTop1), plotWidCss, plotHgtCss); + } + + let idx; + + // when zooming to an x scale range between datapoints the binary search + // for nearest min/max indices results in this condition. cheap hack :D + let noDataInRange = i0 > i1; + + closestDist = inf; + + // if cursor hidden, hide points & clear legend vals + if (mouseLeft1 < 0 || dataLen == 0 || noDataInRange) { + idx = null; + + for (let i = 0; i < series.length; i++) { + if (i > 0) { + cursorPts.length > 1 && trans(cursorPts[i], -10, -10, plotWidCss, plotHgtCss); + } + + if (showLegend && legend.live) { + if (i == 0 && multiValLegend) + continue; + + for (let j = 0; j < legendRows[i].length; j++) + legendRows[i][j][firstChild].nodeValue = '--'; + } + } + + if (cursorFocus) + setSeries(null, {focus: true}, syncOpts.setSeries); + } + else { + // let pctY = 1 - (y / rect[HEIGHT]); + + let valAtPos = scaleValueAtPos(mouseLeft1, xScaleKey); + + idx = closestIdx(valAtPos, data[0], i0, i1); + + let scX = scales[xScaleKey]; + + let xPos = roundDec(getXPos(data[0][idx], scX, plotWidCss, 0), 3); + + for (let i = 0; i < series.length; i++) { + let s = series[i]; + + let idx2 = cursor.dataIdx(self, i, idx, valAtPos); + let xPos2 = idx2 == idx ? xPos : roundDec(getXPos(data[0][idx2], scX, plotWidCss, 0), 3); + + if (i > 0 && s.show) { + let valAtIdx = data[i][idx2]; + + let yPos = valAtIdx == null ? -10 : roundDec(getYPos(valAtIdx, scales[s.scale], plotHgtCss, 0), 3); + + if (yPos > 0) { + let dist = abs(yPos - mouseTop1); + + if (dist <= closestDist) { + closestDist = dist; + closestSeries = i; + } + } + + cursorPts.length > 1 && trans(cursorPts[i], xPos2, yPos, plotWidCss, plotHgtCss); + } + + if (showLegend && legend.live) { + if ((idx2 == cursor.idx && !shouldSetLegend) || i == 0 && multiValLegend) + continue; + + let src = i == 0 && xScaleDistr == 2 ? data0 : data[i]; + + let vals = multiValLegend ? s.values(self, i, idx2) : {_: s.value(self, src[idx2], i, idx2)}; + + let j = 0; + + for (let k in vals) + legendRows[i][j++][firstChild].nodeValue = vals[k]; + } + } + + shouldSetLegend = false; + } + + // nit: cursor.drag.setSelect is assumed always true + if (select.show && dragging) { + if (src != null) { + let [xKey, yKey] = syncOpts.scales; + + // match the dragX/dragY implicitness/explicitness of src + let sdrag = src.cursor.drag; + dragX = sdrag._x; + dragY = sdrag._y; + + if (xKey) { + let sc = scales[xKey]; + let srcLeft = src.posToVal(src.select[LEFT], xKey); + let srcRight = src.posToVal(src.select[LEFT] + src.select[WIDTH], xKey); + + select[LEFT] = getXPos(srcLeft, sc, plotWidCss, 0); + select[WIDTH] = abs(select[LEFT] - getXPos(srcRight, sc, plotWidCss, 0)); + + setStylePx(selectDiv, LEFT, select[LEFT]); + setStylePx(selectDiv, WIDTH, select[WIDTH]); + + if (!yKey) { + setStylePx(selectDiv, TOP, select[TOP] = 0); + setStylePx(selectDiv, HEIGHT, select[HEIGHT] = plotHgtCss); + } + } + + if (yKey) { + let sc = scales[yKey]; + let srcTop = src.posToVal(src.select[TOP], yKey); + let srcBottom = src.posToVal(src.select[TOP] + src.select[HEIGHT], yKey); + + select[TOP] = getYPos(srcTop, sc, plotHgtCss, 0); + select[HEIGHT] = abs(select[TOP] - getYPos(srcBottom, sc, plotHgtCss, 0)); + + setStylePx(selectDiv, TOP, select[TOP]); + setStylePx(selectDiv, HEIGHT, select[HEIGHT]); + + if (!xKey) { + setStylePx(selectDiv, LEFT, select[LEFT] = 0); + setStylePx(selectDiv, WIDTH, select[WIDTH] = plotWidCss); + } + } + } + else { + let rawDX = abs(rawMouseLeft1 - rawMouseLeft0); + let rawDY = abs(rawMouseTop1 - rawMouseTop0); + + dragX = drag.x && rawDX >= drag.dist; + dragY = drag.y && rawDY >= drag.dist; + + let uni = drag.uni; + + if (uni != null) { + // only calc drag status if they pass the dist thresh + if (dragX && dragY) { + dragX = rawDX >= uni; + dragY = rawDY >= uni; + + // force unidirectionality when both are under uni limit + if (!dragX && !dragY) { + if (rawDY > rawDX) + dragY = true; + else + dragX = true; + } + } + } + else if (drag.x && drag.y && (dragX || dragY)) + // if omni with no uni then both dragX / dragY should be true if either is true + dragX = dragY = true; + + if (dragX) { + let minX = min(mouseLeft0, mouseLeft1); + let dx = abs(mouseLeft1 - mouseLeft0); + + setStylePx(selectDiv, LEFT, select[LEFT] = minX); + setStylePx(selectDiv, WIDTH, select[WIDTH] = dx); + + if (!dragY) { + setStylePx(selectDiv, TOP, select[TOP] = 0); + setStylePx(selectDiv, HEIGHT, select[HEIGHT] = plotHgtCss); + } + } + + if (dragY) { + let minY = min(mouseTop0, mouseTop1); + let dy = abs(mouseTop1 - mouseTop0); + + setStylePx(selectDiv, TOP, select[TOP] = minY); + setStylePx(selectDiv, HEIGHT, select[HEIGHT] = dy); + + if (!dragX) { + setStylePx(selectDiv, LEFT, select[LEFT] = 0); + setStylePx(selectDiv, WIDTH, select[WIDTH] = plotWidCss); + } + } + + if (!dragX && !dragY) { + // the drag didn't pass the dist requirement + setStylePx(selectDiv, HEIGHT, select[HEIGHT] = 0); + setStylePx(selectDiv, WIDTH, select[WIDTH] = 0); + } + } + } + + cursor.idx = idx; + cursor.left = mouseLeft1; + cursor.top = mouseTop1; + drag._x = dragX; + drag._y = dragY; + + // if ts is present, means we're implicitly syncing own cursor as a result of debounced rAF + if (ts != null) { + // this is not technically a "mousemove" event, since it's debounced, rename to setCursor? + // since this is internal, we can tweak it later + sync.pub(mousemove, self, mouseLeft1, mouseTop1, plotWidCss, plotHgtCss, idx); + + if (cursorFocus) { + setSeries(closestDist <= focus.prox ? closestSeries : null, {focus: true}, syncOpts.setSeries); + } + } + + ready && fire("setCursor"); + } + + let rect = null; + + function syncRect() { + rect = over.getBoundingClientRect(); + } + + function mouseMove(e, src, _x, _y, _w, _h, _i) { + if (cursor._lock) + return; + + cacheMouse(e, src, _x, _y, _w, _h, _i, false, e != null); + + if (e != null) { + if (cursorRaf == 0) + cursorRaf = rAF(updateCursor); + } + else + updateCursor(null, src); + } + + function cacheMouse(e, src, _x, _y, _w, _h, _i, initial, snap) { + if (e != null) { + _x = e.clientX - rect.left; + _y = e.clientY - rect.top; + } + else { + if (_x < 0 || _y < 0) { + mouseLeft1 = -10; + mouseTop1 = -10; + return; + } + + let [xKey, yKey] = syncOpts.scales; + + if (xKey != null) + _x = getXPos(src.posToVal(_x, xKey), scales[xKey], plotWidCss, 0); + else + _x = plotWidCss * (_x/_w); + + if (yKey != null) + _y = getYPos(src.posToVal(_y, yKey), scales[yKey], plotHgtCss, 0); + else + _y = plotHgtCss * (_y/_h); + } + + if (snap) { + if (_x <= 1 || _x >= plotWidCss - 1) + _x = incrRound(_x, plotWidCss); + + if (_y <= 1 || _y >= plotHgtCss - 1) + _y = incrRound(_y, plotHgtCss); + } + + if (initial) { + rawMouseLeft0 = _x; + rawMouseTop0 = _y; + + [mouseLeft0, mouseTop0] = cursor.move(self, _x, _y); + } + else { + mouseLeft1 = _x; + mouseTop1 = _y; + } + } + + function hideSelect() { + setSelect({ + width: 0, + height: 0, + }, false); + } + + function mouseDown(e, src, _x, _y, _w, _h, _i) { + dragging = true; + dragX = dragY = drag._x = drag._y = false; + + cacheMouse(e, src, _x, _y, _w, _h, _i, true, false); + + if (e != null) { + onMouse(mouseup, doc, mouseUp); + sync.pub(mousedown, self, mouseLeft0, mouseTop0, plotWidCss, plotHgtCss, null); + } + } + + function mouseUp(e, src, _x, _y, _w, _h, _i) { + dragging = drag._x = drag._y = false; + + cacheMouse(e, src, _x, _y, _w, _h, _i, false, true); + + let hasSelect = select[WIDTH] > 0 || select[HEIGHT] > 0; + + hasSelect && setSelect(select); + + if (drag.setScale && hasSelect) { + // if (syncKey != null) { + // dragX = drag.x; + // dragY = drag.y; + // } + + if (dragX) { + _setScale(xScaleKey, + scaleValueAtPos(select[LEFT], xScaleKey), + scaleValueAtPos(select[LEFT] + select[WIDTH], xScaleKey) + ); + } + + if (dragY) { + for (let k in scales) { + let sc = scales[k]; + + if (k != xScaleKey && sc.from == null && sc.min != inf) { + _setScale(k, + scaleValueAtPos(select[TOP] + select[HEIGHT], k), + scaleValueAtPos(select[TOP], k) + ); + } + } + } + + hideSelect(); + } + else if (cursor.lock) { + cursor._lock = !cursor._lock; + + if (!cursor._lock) + updateCursor(); + } + + if (e != null) { + offMouse(mouseup, doc); + sync.pub(mouseup, self, mouseLeft1, mouseTop1, plotWidCss, plotHgtCss, null); + } + } + + function mouseLeave(e, src, _x, _y, _w, _h, _i) { + if (!cursor._lock) { + let _dragging = dragging; + + if (dragging) { + // handle case when mousemove aren't fired all the way to edges by browser + let snapX = true; + let snapY = true; + let snapProx = 10; + + if (dragX && dragY) { + // maybe omni corner snap + snapX = mouseLeft1 <= snapProx || mouseLeft1 >= plotWidCss - snapProx; + snapY = mouseTop1 <= snapProx || mouseTop1 >= plotHgtCss - snapProx; + } + + if (dragX && snapX) { + let dLft = mouseLeft1; + let dRgt = plotWidCss - mouseLeft1; + + let xMin = min(dLft, dRgt); + + if (xMin == dLft) + mouseLeft1 = 0; + if (xMin == dRgt) + mouseLeft1 = plotWidCss; + } + + if (dragY && snapY) { + let dTop = mouseTop1; + let dBtm = plotHgtCss - mouseTop1; + + let yMin = min(dTop, dBtm); + + if (yMin == dTop) + mouseTop1 = 0; + if (yMin == dBtm) + mouseTop1 = plotHgtCss; + } + + updateCursor(1); + + dragging = false; + } + + mouseLeft1 = -10; + mouseTop1 = -10; + + // passing a non-null timestamp to force sync/mousemove event + updateCursor(1); + + if (_dragging) + dragging = _dragging; + } + } + + function dblClick(e, src, _x, _y, _w, _h, _i) { + autoScaleX(); + + hideSelect(); + + if (e != null) + sync.pub(dblclick, self, mouseLeft1, mouseTop1, plotWidCss, plotHgtCss, null); + } + + // internal pub/sub + const events = {}; + + events[mousedown] = mouseDown; + events[mousemove] = mouseMove; + events[mouseup] = mouseUp; + events[dblclick] = dblClick; + events["setSeries"] = (e, src, idx, opts) => { + setSeries(idx, opts); + }; + + let deb; + + if ( cursor.show) { + onMouse(mousedown, over, mouseDown); + onMouse(mousemove, over, mouseMove); + onMouse(mouseenter, over, syncRect); + // this has to be rAF'd so it always fires after the last queued/rAF'd updateCursor + onMouse(mouseleave, over, e => { rAF(mouseLeave); }); + + onMouse(dblclick, over, dblClick); + + deb = debounce(syncRect, 100); + + on(resize, win, deb); + on(scroll, win, deb); + + self.syncRect = syncRect; + } + + // external on/off + const hooks = self.hooks = opts.hooks || {}; + + function fire(evName, a1, a2) { + if (evName in hooks) { + hooks[evName].forEach(fn => { + fn.call(null, self, a1, a2); + }); + } + } + + (opts.plugins || []).forEach(p => { + for (let evName in p.hooks) + hooks[evName] = (hooks[evName] || []).concat(p.hooks[evName]); + }); + + const syncOpts = assign({ + key: null, + setSeries: false, + scales: [xScaleKey, null] + }, cursor.sync); + + const syncKey = syncOpts.key; + + const sync = (syncKey != null ? (syncs[syncKey] = syncs[syncKey] || _sync()) : _sync()); + + sync.sub(self); + + function pub(type, src, x, y, w, h, i) { + events[type](null, src, x, y, w, h, i); + } + + (self.pub = pub); + + function destroy() { + sync.unsub(self); + off(resize, win, deb); + off(scroll, win, deb); + root.remove(); + fire("destroy"); + } + + self.destroy = destroy; + + function _init() { + fire("init", opts, data); + + setData(data || opts.data, false); + + if (pendScales[xScaleKey]) + setScale(xScaleKey, pendScales[xScaleKey]); + else + autoScaleX(); + + _setSize(opts[WIDTH], opts[HEIGHT]); + + setSelect(select, false); + } + + if (then) { + if (then instanceof HTMLElement) { + then.appendChild(root); + _init(); + } + else + then(self, _init); + } + else + _init(); + + return self; +} + +uPlot.assign = assign; +uPlot.fmtNum = fmtNum; +uPlot.rangeNum = rangeNum; +uPlot.rangeLog = rangeLog; + +{ + uPlot.fmtDate = fmtDate; + uPlot.tzDate = tzDate; +} + +export default uPlot; diff --git a/plugins/uplot/uPlot.iife.js b/plugins/uplot/uPlot.iife.js new file mode 100644 index 000000000..b01b9f717 --- /dev/null +++ b/plugins/uplot/uPlot.iife.js @@ -0,0 +1,3454 @@ +/** +* Copyright (c) 2020, Leon Sorokin +* All rights reserved. (MIT Licensed) +* +* uPlot.js (μPlot) +* A small, fast chart for time series, lines, areas, ohlc & bars +* https://github.com/leeoniya/uPlot (v1.4.4) +*/ + +var uPlot = (function () { + 'use strict'; + + function debounce(fn, time) { + var pending = null; + + function run() { + pending = null; + fn(); + } + + return function() { + clearTimeout(pending); + pending = setTimeout(run, time); + } + } + + // binary search for index of closest value + function closestIdx(num, arr, lo, hi) { + var mid; + lo = lo || 0; + hi = hi || arr.length - 1; + var bitwise = hi <= 2147483647; + + while (hi - lo > 1) { + mid = bitwise ? (lo + hi) >> 1 : floor((lo + hi) / 2); + + if (arr[mid] < num) + { lo = mid; } + else + { hi = mid; } + } + + if (num - arr[lo] <= arr[hi] - num) + { return lo; } + + return hi; + } + + function getMinMax(data, _i0, _i1, sorted) { + // console.log("getMinMax()"); + + var _min = inf; + var _max = -inf; + + if (sorted == 1) { + _min = data[_i0]; + _max = data[_i1]; + } + else if (sorted == -1) { + _min = data[_i1]; + _max = data[_i0]; + } + else { + for (var i = _i0; i <= _i1; i++) { + if (data[i] != null) { + _min = min(_min, data[i]); + _max = max(_max, data[i]); + } + } + } + + return [_min, _max]; + } + + var _fixedTuple = [0, 0]; + + function fixIncr(minIncr, maxIncr, minExp, maxExp) { + _fixedTuple[0] = minExp < 0 ? roundDec(minIncr, -minExp) : minIncr; + _fixedTuple[1] = maxExp < 0 ? roundDec(maxIncr, -maxExp) : maxIncr; + return _fixedTuple; + } + + function rangeLog(min, max, base, fullMags) { + var logFn = base == 10 ? log10 : log2; + + if (min == max) { + min /= base; + max *= base; + } + + var minExp, maxExp, minMaxIncrs; + + if (fullMags) { + minExp = floor(logFn(min)); + maxExp = ceil(logFn(max)); + + minMaxIncrs = fixIncr(pow(base, minExp), pow(base, maxExp), minExp, maxExp); + + min = minMaxIncrs[0]; + max = minMaxIncrs[1]; + } + else { + minExp = floor(logFn(min)); + maxExp = floor(logFn(max)); + + minMaxIncrs = fixIncr(pow(base, minExp), pow(base, maxExp), minExp, maxExp); + + min = incrRoundDn(min, minMaxIncrs[0]); + max = incrRoundUp(max, minMaxIncrs[1]); + } + + return [min, max]; + } + + var _eqRangePart = { + pad: 0, + soft: null, + mode: 0, + }; + + var _eqRange = { + min: _eqRangePart, + max: _eqRangePart, + }; + + // this ensures that non-temporal/numeric y-axes get multiple-snapped padding added above/below + // TODO: also account for incrs when snapping to ensure top of axis gets a tick & value + function rangeNum(_min, _max, mult, extra) { + if (isObj(mult)) + { return _rangeNum(_min, _max, mult); } + + _eqRangePart.pad = mult; + _eqRangePart.soft = extra ? 0 : null; + _eqRangePart.mode = extra ? 2 : 0; + + return _rangeNum(_min, _max, _eqRange); + } + + // nullish coalesce + function ifNull(lh, rh) { + return lh == null ? rh : lh; + } + + function _rangeNum(_min, _max, cfg) { + var cmin = cfg.min; + var cmax = cfg.max; + + var padMin = ifNull(cmin.pad, 0); + var padMax = ifNull(cmax.pad, 0); + + var hardMin = ifNull(cmin.hard, -inf); + var hardMax = ifNull(cmax.hard, inf); + + var softMin = ifNull(cmin.soft, inf); + var softMax = ifNull(cmax.soft, -inf); + + var softMinMode = ifNull(cmin.mode, 0); + var softMaxMode = ifNull(cmax.mode, 0); + + var delta = _max - _min; + var nonZeroDelta = delta || abs(_max) || 1e3; + var mag = log10(nonZeroDelta); + var base = pow(10, floor(mag)); + + var _padMin = nonZeroDelta * (delta == 0 ? (_min == 0 ? .1 : 1) : padMin); + var _newMin = roundDec(incrRoundDn(_min - _padMin, base/100), 6); + var _softMin = _min >= softMin && (softMinMode == 1 || softMinMode == 2 && _newMin < softMin) ? softMin : inf; + var minLim = max(hardMin, _newMin < _softMin && _min >= _softMin ? _softMin : min(_softMin, _newMin)); + + var _padMax = nonZeroDelta * (delta == 0 ? (_max == 0 ? .1 : 1) : padMax); + var _newMax = roundDec(incrRoundUp(_max + _padMax, base/100), 6); + var _softMax = _max <= softMax && (softMaxMode == 1 || softMaxMode == 2 && _newMax > softMax) ? softMax : -inf; + var maxLim = min(hardMax, _newMax > _softMax && _max <= _softMax ? _softMax : max(_softMax, _newMax)); + + if (minLim == maxLim && minLim == 0) + { maxLim = 100; } + + return [minLim, maxLim]; + } + + // alternative: https://stackoverflow.com/a/2254896 + var fmtNum = new Intl.NumberFormat(navigator.language).format; + + var M = Math; + + var abs = M.abs; + var floor = M.floor; + var round = M.round; + var ceil = M.ceil; + var min = M.min; + var max = M.max; + var pow = M.pow; + var log10 = M.log10; + var log2 = M.log2; + var PI = M.PI; + + var inf = Infinity; + + function incrRound(num, incr) { + return round(num/incr)*incr; + } + + function clamp(num, _min, _max) { + return min(max(num, _min), _max); + } + + function fnOrSelf(v) { + return typeof v == "function" ? v : function () { return v; }; + } + + function retArg1(_0, _1) { + return _1; + } + + function incrRoundUp(num, incr) { + return ceil(num/incr)*incr; + } + + function incrRoundDn(num, incr) { + return floor(num/incr)*incr; + } + + function roundDec(val, dec) { + return round(val * (dec = Math.pow( 10, dec ))) / dec; + } + + var fixedDec = new Map(); + + function guessDec(num) { + return ((""+num).split(".")[1] || "").length; + } + + function genIncrs(base, minExp, maxExp, mults) { + var incrs = []; + + var multDec = mults.map(guessDec); + + for (var exp = minExp; exp < maxExp; exp++) { + var expa = abs(exp); + var mag = roundDec(pow(base, exp), expa); + + for (var i = 0; i < mults.length; i++) { + var _incr = mults[i] * mag; + var dec = (_incr >= 0 && exp >= 0 ? 0 : expa) + (exp >= multDec[i] ? 0 : multDec[i]); + var incr = roundDec(_incr, dec); + incrs.push(incr); + fixedDec.set(incr, dec); + } + } + + return incrs; + } + + //export const assign = Object.assign; + + var EMPTY_OBJ = {}; + + var isArr = Array.isArray; + + function isStr(v) { + return typeof v === 'string'; + } + + function isObj(v) { + return typeof v === 'object' && v !== null; + } + + function copy(o) { + var out; + + if (isArr(o)) + { out = o.map(copy); } + else if (isObj(o)) { + out = {}; + for (var k in o) + { out[k] = copy(o[k]); } + } + else + { out = o; } + + return out; + } + + function assign(targ) { + var args = arguments; + + for (var i = 1; i < args.length; i++) { + var src = args[i]; + + for (var key in src) { + if (isObj(targ[key])) + { assign(targ[key], copy(src[key])); } + else + { targ[key] = copy(src[key]); } + } + } + + return targ; + } + + var microTask = typeof queueMicrotask == "undefined" ? function (fn) { return Promise.resolve().then(fn); } : queueMicrotask; + + var WIDTH = "width"; + var HEIGHT = "height"; + var TOP = "top"; + var BOTTOM = "bottom"; + var LEFT = "left"; + var RIGHT = "right"; + var firstChild = "firstChild"; + var createElement = "createElement"; + var hexBlack = "#000"; + var transparent = hexBlack + "0"; + var classList = "classList"; + + var mousemove = "mousemove"; + var mousedown = "mousedown"; + var mouseup = "mouseup"; + var mouseenter = "mouseenter"; + var mouseleave = "mouseleave"; + var dblclick = "dblclick"; + var resize = "resize"; + var scroll = "scroll"; + + var pre = "u-"; + + var UPLOT = "uplot"; + var TITLE = pre + "title"; + var WRAP = pre + "wrap"; + var UNDER = pre + "under"; + var OVER = pre + "over"; + var OFF = pre + "off"; + var SELECT = pre + "select"; + var CURSOR_X = pre + "cursor-x"; + var CURSOR_Y = pre + "cursor-y"; + var CURSOR_PT = pre + "cursor-pt"; + var LEGEND = pre + "legend"; + var LEGEND_LIVE = pre + "live"; + var LEGEND_INLINE = pre + "inline"; + var LEGEND_THEAD = pre + "thead"; + var LEGEND_SERIES = pre + "series"; + var LEGEND_MARKER = pre + "marker"; + var LEGEND_LABEL = pre + "label"; + var LEGEND_VALUE = pre + "value"; + + var rAF = requestAnimationFrame; + var doc = document; + var win = window; + var pxRatio = devicePixelRatio; + + function addClass(el, c) { + c != null && el[classList].add(c); + } + + function remClass(el, c) { + el[classList].remove(c); + } + + function setStylePx(el, name, value) { + el.style[name] = value + "px"; + } + + function placeTag(tag, cls, targ, refEl) { + var el = doc[createElement](tag); + + if (cls != null) + { addClass(el, cls); } + + if (targ != null) + { targ.insertBefore(el, refEl); } + + return el; + } + + function placeDiv(cls, targ) { + return placeTag("div", cls, targ); + } + + function trans(el, xPos, yPos, xMax, yMax) { + el.style.transform = "translate(" + xPos + "px," + yPos + "px)"; + + if (xPos < 0 || yPos < 0 || xPos > xMax || yPos > yMax) + { addClass(el, OFF); } + else + { remClass(el, OFF); } + } + + var evOpts = {passive: true}; + + function on(ev, el, cb) { + el.addEventListener(ev, cb, evOpts); + } + + function off(ev, el, cb) { + el.removeEventListener(ev, cb, evOpts); + } + + var months = [ + "January", + "February", + "March", + "April", + "May", + "June", + "July", + "August", + "September", + "October", + "November", + "December" ]; + + var days = [ + "Sunday", + "Monday", + "Tuesday", + "Wednesday", + "Thursday", + "Friday", + "Saturday" ]; + + function slice3(str) { + return str.slice(0, 3); + } + + var days3 = days.map(slice3); + + var months3 = months.map(slice3); + + var engNames = { + MMMM: months, + MMM: months3, + WWWW: days, + WWW: days3, + }; + + function zeroPad2(int) { + return (int < 10 ? '0' : '') + int; + } + + function zeroPad3(int) { + return (int < 10 ? '00' : int < 100 ? '0' : '') + int; + } + + /* + function suffix(int) { + let mod10 = int % 10; + + return int + ( + mod10 == 1 && int != 11 ? "st" : + mod10 == 2 && int != 12 ? "nd" : + mod10 == 3 && int != 13 ? "rd" : "th" + ); + } + */ + + var getFullYear = 'getFullYear'; + var getMonth = 'getMonth'; + var getDate = 'getDate'; + var getDay = 'getDay'; + var getHours = 'getHours'; + var getMinutes = 'getMinutes'; + var getSeconds = 'getSeconds'; + var getMilliseconds = 'getMilliseconds'; + + var subs = { + // 2019 + YYYY: function (d) { return d[getFullYear](); }, + // 19 + YY: function (d) { return (d[getFullYear]()+'').slice(2); }, + // July + MMMM: function (d, names) { return names.MMMM[d[getMonth]()]; }, + // Jul + MMM: function (d, names) { return names.MMM[d[getMonth]()]; }, + // 07 + MM: function (d) { return zeroPad2(d[getMonth]()+1); }, + // 7 + M: function (d) { return d[getMonth]()+1; }, + // 09 + DD: function (d) { return zeroPad2(d[getDate]()); }, + // 9 + D: function (d) { return d[getDate](); }, + // Monday + WWWW: function (d, names) { return names.WWWW[d[getDay]()]; }, + // Mon + WWW: function (d, names) { return names.WWW[d[getDay]()]; }, + // 03 + HH: function (d) { return zeroPad2(d[getHours]()); }, + // 3 + H: function (d) { return d[getHours](); }, + // 9 (12hr, unpadded) + h: function (d) {var h = d[getHours](); return h == 0 ? 12 : h > 12 ? h - 12 : h;}, + // AM + AA: function (d) { return d[getHours]() >= 12 ? 'PM' : 'AM'; }, + // am + aa: function (d) { return d[getHours]() >= 12 ? 'pm' : 'am'; }, + // a + a: function (d) { return d[getHours]() >= 12 ? 'p' : 'a'; }, + // 09 + mm: function (d) { return zeroPad2(d[getMinutes]()); }, + // 9 + m: function (d) { return d[getMinutes](); }, + // 09 + ss: function (d) { return zeroPad2(d[getSeconds]()); }, + // 9 + s: function (d) { return d[getSeconds](); }, + // 374 + fff: function (d) { return zeroPad3(d[getMilliseconds]()); }, + }; + + function fmtDate(tpl, names) { + names = names || engNames; + var parts = []; + + var R = /\{([a-z]+)\}|[^{]+/gi, m; + + while (m = R.exec(tpl)) + { parts.push(m[0][0] == '{' ? subs[m[1]] : m[0]); } + + return function (d) { + var out = ''; + + for (var i = 0; i < parts.length; i++) + { out += typeof parts[i] == "string" ? parts[i] : parts[i](d, names); } + + return out; + } + } + + var localTz = new Intl.DateTimeFormat().resolvedOptions().timeZone; + + // https://stackoverflow.com/questions/15141762/how-to-initialize-a-javascript-date-to-a-particular-time-zone/53652131#53652131 + function tzDate(date, tz) { + var date2; + + // perf optimization + if (tz == 'Etc/UTC') + { date2 = new Date(+date + date.getTimezoneOffset() * 6e4); } + else if (tz == localTz) + { date2 = date; } + else { + date2 = new Date(date.toLocaleString('en-US', {timeZone: tz})); + date2.setMilliseconds(date[getMilliseconds]()); + } + + return date2; + } + + //export const series = []; + + // default formatters: + + var onlyWhole = function (v) { return v % 1 == 0; }; + + var allMults = [1,2,2.5,5]; + + var wholeMults = allMults.filter(onlyWhole); + + // ...0.01, 0.02, 0.025, 0.05, 0.1, 0.2, 0.25, 0.5 + var decIncrs = genIncrs(10, -16, 0, allMults); + + // 1, 2, 2.5, 5, 10, 20, 25, 50... + var oneIncrs = genIncrs(10, 0, 16, allMults); + + // 1, 2, 5, 10, 20, 25, 50... + var wholeIncrs = oneIncrs.filter(onlyWhole); + + var numIncrs = decIncrs.concat(oneIncrs); + + var s = 1, + m = 60, + h = m * m, + d = h * 24, + mo = d * 30, + y = d * 365; + + // min of 1e-3 prevents setting a temporal x ticks too small since Date objects cannot advance ticks smaller than 1ms + var timeIncrs = genIncrs(10, -3, 0, wholeMults).concat([ + // minute divisors (# of secs) + 1, + 5, + 10, + 15, + 30, + // hour divisors (# of mins) + m, + m * 5, + m * 10, + m * 15, + m * 30, + // day divisors (# of hrs) + h, + h * 2, + h * 3, + h * 4, + h * 6, + h * 8, + h * 12, + // month divisors TODO: need more? + d, + d * 2, + d * 3, + d * 4, + d * 5, + d * 6, + d * 7, + d * 8, + d * 9, + d * 10, + d * 15, + // year divisors (# months, approx) + mo, + mo * 2, + mo * 3, + mo * 4, + mo * 6, + // century divisors + y, + y * 2, + y * 5, + y * 10, + y * 25, + y * 50, + y * 100 ]); + + // base 2 + var binIncrs = genIncrs(2, -53, 53, [1]); + + /* + console.log({ + decIncrs, + oneIncrs, + wholeIncrs, + numIncrs, + timeIncrs, + fixedDec, + }); + */ + + function timeAxisStamps(stampCfg, fmtDate) { + return stampCfg.map(function (s) { return s.map(function (v, i) { return i == 0 || i == 8 || v == null ? v : fmtDate(i == 1 || s[8] == 0 ? v : s[1] + v); } + ); }); + } + + var NL = "\n"; + + var yyyy = "{YYYY}"; + var NLyyyy = NL + yyyy; + var md = "{M}/{D}"; + var NLmd = NL + md; + var NLmdyy = NLmd + "/{YY}"; + + var aa = "{aa}"; + var hmm = "{h}:{mm}"; + var hmmaa = hmm + aa; + var NLhmmaa = NL + hmmaa; + var ss = ":{ss}"; + + var _ = null; + + // [0]: minimum num secs in the tick incr + // [1]: default tick format + // [2-7]: rollover tick formats + // [8]: mode: 0: replace [1] -> [2-7], 1: concat [1] + [2-7] + var _timeAxisStamps = [ + // tick incr default year month day hour min sec mode + [y, yyyy, _, _, _, _, _, _, 1], + [d * 28, "{MMM}", NLyyyy, _, _, _, _, _, 1], + [d, md, NLyyyy, _, _, _, _, _, 1], + [h, "{h}" + aa, NLmdyy, _, NLmd, _, _, _, 1], + [m, hmmaa, NLmdyy, _, NLmd, _, _, _, 1], + [s, ss, NLmdyy + " " + hmmaa, _, NLmd + " " + hmmaa, _, NLhmmaa, _, 1], + [1e-3, ss + ".{fff}", NLmdyy + " " + hmmaa, _, NLmd + " " + hmmaa, _, NLhmmaa, _, 1] ]; + + // TODO: will need to accept spaces[] and pull incr into the loop when grid will be non-uniform, eg for log scales. + // currently we ignore this for months since they're *nearly* uniform and the added complexity is not worth it + function timeAxisVals(tzDate, stamps) { + return function (self, splits, axisIdx, foundSpace, foundIncr) { + var s = stamps.find(function (s) { return foundIncr >= s[0]; }) || stamps[stamps.length - 1]; + + // these track boundaries when a full label is needed again + var prevYear; + var prevMnth; + var prevDate; + var prevHour; + var prevMins; + var prevSecs; + + return splits.map(function (split) { + var date = tzDate(split); + + var newYear = date[getFullYear](); + var newMnth = date[getMonth](); + var newDate = date[getDate](); + var newHour = date[getHours](); + var newMins = date[getMinutes](); + var newSecs = date[getSeconds](); + + var stamp = ( + newYear != prevYear && s[2] || + newMnth != prevMnth && s[3] || + newDate != prevDate && s[4] || + newHour != prevHour && s[5] || + newMins != prevMins && s[6] || + newSecs != prevSecs && s[7] || + s[1] + ); + + prevYear = newYear; + prevMnth = newMnth; + prevDate = newDate; + prevHour = newHour; + prevMins = newMins; + prevSecs = newSecs; + + return stamp(date); + }); + } + } + + // for when axis.values is defined as a static fmtDate template string + function timeAxisVal(tzDate, dateTpl) { + var stamp = fmtDate(dateTpl); + return function (self, splits, axisIdx, foundSpace, foundIncr) { return splits.map(function (split) { return stamp(tzDate(split)); }); }; + } + + function mkDate(y, m, d) { + return new Date(y, m, d); + } + + // the ensures that axis ticks, values & grid are aligned to logical temporal breakpoints and not an arbitrary timestamp + // https://www.timeanddate.com/time/dst/ + // https://www.timeanddate.com/time/dst/2019.html + // https://www.epochconverter.com/timezones + function timeAxisSplits(tzDate) { + return function (self, axisIdx, scaleMin, scaleMax, foundIncr, foundSpace) { + var splits = []; + var isYr = foundIncr >= y; + var isMo = foundIncr >= mo && foundIncr < y; + + // get the timezone-adjusted date + var minDate = tzDate(scaleMin); + var minDateTs = minDate / 1e3; + + // get ts of 12am (this lands us at or before the original scaleMin) + var minMin = mkDate(minDate[getFullYear](), isYr ? 0 : minDate[getMonth](), isMo || isYr ? 1 : minDate[getDate]()); + var minMinTs = minMin / 1e3; + + if (isMo || isYr) { + var moIncr = isMo ? foundIncr / mo : 0; + var yrIncr = isYr ? foundIncr / y : 0; + // let tzOffset = scaleMin - minDateTs; // needed? + var split = minDateTs == minMinTs ? minDateTs : mkDate(minMin[getFullYear]() + yrIncr, minMin[getMonth]() + moIncr, 1) / 1e3; + var splitDate = new Date(split * 1e3); + var baseYear = splitDate[getFullYear](); + var baseMonth = splitDate[getMonth](); + + for (var i = 0; split <= scaleMax; i++) { + var next = mkDate(baseYear + yrIncr * i, baseMonth + moIncr * i, 1); + var offs = next - tzDate(next / 1e3); + + split = (+next + offs) / 1e3; + + if (split <= scaleMax) + { splits.push(split); } + } + } + else { + var incr0 = foundIncr >= d ? d : foundIncr; + var tzOffset = floor(scaleMin) - floor(minDateTs); + var split$1 = minMinTs + tzOffset + incrRoundUp(minDateTs - minMinTs, incr0); + splits.push(split$1); + + var date0 = tzDate(split$1); + + var prevHour = date0[getHours]() + (date0[getMinutes]() / m) + (date0[getSeconds]() / h); + var incrHours = foundIncr / h; + + var minSpace = self.axes[axisIdx]._space; + var pctSpace = foundSpace / minSpace; + + while (1) { + split$1 = roundDec(split$1 + foundIncr, 3); + + if (split$1 > scaleMax) + { break; } + + if (incrHours > 1) { + var expectedHour = floor(roundDec(prevHour + incrHours, 6)) % 24; + var splitDate$1 = tzDate(split$1); + var actualHour = splitDate$1.getHours(); + + var dstShift = actualHour - expectedHour; + + if (dstShift > 1) + { dstShift = -1; } + + split$1 -= dstShift * h; + + prevHour = (prevHour + incrHours) % 24; + + // add a tick only if it's further than 70% of the min allowed label spacing + var prevSplit = splits[splits.length - 1]; + var pctIncr = roundDec((split$1 - prevSplit) / foundIncr, 3); + + if (pctIncr * pctSpace >= .7) + { splits.push(split$1); } + } + else + { splits.push(split$1); } + } + } + + return splits; + } + } + + function timeSeriesStamp(stampCfg, fmtDate) { + return fmtDate(stampCfg); + } + var _timeSeriesStamp = '{YYYY}-{MM}-{DD} {h}:{mm}{aa}'; + + function timeSeriesVal(tzDate, stamp) { + return function (self, val) { return stamp(tzDate(val)); }; + } + + function cursorPoint(self, si) { + var s = self.series[si]; + + var pt = placeDiv(); + + pt.style.background = s.stroke || hexBlack; + + var dia = ptDia(s.width, 1); + var mar = (dia - 1) / -2; + + setStylePx(pt, WIDTH, dia); + setStylePx(pt, HEIGHT, dia); + setStylePx(pt, "marginLeft", mar); + setStylePx(pt, "marginTop", mar); + + return pt; + } + + function dataIdx(self, seriesIdx, cursorIdx) { + return cursorIdx; + } + + var moveTuple = [0,0]; + + function cursorMove(self, mouseLeft1, mouseTop1) { + moveTuple[0] = mouseLeft1; + moveTuple[1] = mouseTop1; + return moveTuple; + } + + function filtBtn0(self, targ, handle) { + return function (e) { + e.button == 0 && handle(e); + }; + } + + function passThru(self, targ, handle) { + return handle; + } + + var cursorOpts = { + show: true, + x: true, + y: true, + lock: false, + move: cursorMove, + points: { + show: cursorPoint, + }, + + bind: { + mousedown: filtBtn0, + mouseup: filtBtn0, + click: filtBtn0, + dblclick: filtBtn0, + + mousemove: passThru, + mouseleave: passThru, + mouseenter: passThru, + }, + + drag: { + setScale: true, + x: true, + y: false, + dist: 0, + uni: null, + _x: false, + _y: false, + }, + + focus: { + prox: -1, + }, + + left: -10, + top: -10, + idx: null, + dataIdx: dataIdx, + }; + + var grid = { + show: true, + stroke: "rgba(0,0,0,0.07)", + width: 2, + // dash: [], + filter: retArg1, + }; + + var ticks = assign({}, grid, {size: 10}); + + var font = '12px system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji"'; + var labelFont = "bold " + font; + var lineMult = 1.5; // font-size multiplier + + var xAxisOpts = { + show: true, + scale: "x", + space: 50, + gap: 5, + size: 50, + labelSize: 30, + labelFont: labelFont, + side: 2, + // class: "x-vals", + // incrs: timeIncrs, + // values: timeVals, + // filter: retArg1, + grid: grid, + ticks: ticks, + font: font, + rotate: 0, + }; + + var numSeriesLabel = "Value"; + var timeSeriesLabel = "Time"; + + var xSeriesOpts = { + show: true, + scale: "x", + auto: false, + sorted: 1, + // label: "Time", + // value: v => stamp(new Date(v * 1e3)), + + // internal caches + min: inf, + max: -inf, + idxs: [], + }; + + function numAxisVals(self, splits, axisIdx, foundSpace, foundIncr) { + return splits.map(function (v) { return v == null ? "" : fmtNum(v); }); + } + + function numAxisSplits(self, axisIdx, scaleMin, scaleMax, foundIncr, foundSpace, forceMin) { + var splits = []; + + var numDec = fixedDec.get(foundIncr) || 0; + + scaleMin = forceMin ? scaleMin : roundDec(incrRoundUp(scaleMin, foundIncr), numDec); + + for (var val = scaleMin; val <= scaleMax; val = roundDec(val + foundIncr, numDec)) + { splits.push(Object.is(val, -0) ? 0 : val); } // coalesces -0 + + return splits; + } + + function logAxisSplits(self, axisIdx, scaleMin, scaleMax, foundIncr, foundSpace, forceMin) { + var splits = []; + + var logBase = self.scales[self.axes[axisIdx].scale].log; + + var logFn = logBase == 10 ? log10 : log2; + + var exp = floor(logFn(scaleMin)); + + foundIncr = pow(logBase, exp); + + if (exp < 0) + { foundIncr = roundDec(foundIncr, -exp); } + + var split = scaleMin; + + do { + splits.push(split); + split = roundDec(split + foundIncr, fixedDec.get(foundIncr)); + + if (split >= foundIncr * logBase) + { foundIncr = split; } + + } while (split <= scaleMax); + + return splits; + } + + var RE_ALL = /./; + var RE_12357 = /[12357]/; + var RE_125 = /[125]/; + var RE_1 = /1/; + + function logAxisValsFilt(self, splits, axisIdx, foundSpace, foundIncr) { + var axis = self.axes[axisIdx]; + var scaleKey = axis.scale; + + if (self.scales[scaleKey].log == 2) + { return splits; } + + var valToPos = self.valToPos; + + var minSpace = axis._space; + + var _10 = valToPos(10, scaleKey); + + var re = ( + valToPos(9, scaleKey) - _10 >= minSpace ? RE_ALL : + valToPos(7, scaleKey) - _10 >= minSpace ? RE_12357 : + valToPos(5, scaleKey) - _10 >= minSpace ? RE_125 : + RE_1 + ); + + return splits.map(function (v) { return re.test(v) ? v : null; }); + } + + function numSeriesVal(self, val) { + return val == null ? "" : fmtNum(val); + } + + var yAxisOpts = { + show: true, + scale: "y", + space: 30, + gap: 5, + size: 50, + labelSize: 30, + labelFont: labelFont, + side: 3, + // class: "y-vals", + // incrs: numIncrs, + // values: (vals, space) => vals, + // filter: retArg1, + grid: grid, + ticks: ticks, + font: font, + rotate: 0, + }; + + // takes stroke width + function ptDia(width, mult) { + var dia = 3 + (width || 1) * 2; + return roundDec(dia * mult, 3); + } + + function seriesPoints(self, si) { + var s = self.series[si]; + var dia = ptDia(s.width, pxRatio); + var maxPts = self.bbox.width / (s.points.space * pxRatio); + var idxs = self.series[0].idxs; + return idxs[1] - idxs[0] <= maxPts; + } + + function seriesFillTo(self, seriesIdx, dataMin, dataMax) { + var scale = self.scales[self.series[seriesIdx].scale]; + return scale.distr == 3 ? scale.min : 0; + } + + var ySeriesOpts = { + scale: "y", + auto: true, + sorted: 0, + show: true, + band: false, + spanGaps: false, + isGap: function (self, seriesIdx, dataIdx) { return true; }, + alpha: 1, + points: { + show: seriesPoints, + // stroke: "#000", + // fill: "#fff", + // width: 1, + // size: 10, + }, + // label: "Value", + // value: v => v, + values: null, + + // internal caches + min: inf, + max: -inf, + idxs: [], + + path: null, + clip: null, + }; + + var xScaleOpts = { + time: true, + auto: true, + distr: 1, + log: 10, + min: null, + max: null, + }; + + var yScaleOpts = assign({}, xScaleOpts, { + time: false, + }); + + var syncs = {}; + + function _sync(opts) { + var clients = []; + + return { + sub: function sub(client) { + clients.push(client); + }, + unsub: function unsub(client) { + clients = clients.filter(function (c) { return c != client; }); + }, + pub: function pub(type, self, x, y, w, h, i) { + if (clients.length > 1) { + clients.forEach(function (client) { + client != self && client.pub(type, self, x, y, w, h, i); + }); + } + } + }; + } + + function setDefaults(d, xo, yo, initY) { + var d2 = initY ? [d[0], d[1]].concat(d.slice(2)) : [d[0]].concat(d.slice(1)); + return d2.map(function (o, i) { return setDefault(o, i, xo, yo); }); + } + + function setDefault(o, i, xo, yo) { + return assign({}, (i == 0 || o && o.side % 2 == 0 ? xo : yo), o); + } + + function getValPct(val, scale) { + return ( + scale.distr == 3 + ? log10(val / scale.min) / log10(scale.max / scale.min) + : (val - scale.min) / (scale.max - scale.min) + ); + } + + function getYPos(val, scale, hgt, top) { + var pctY = getValPct(val, scale); + return top + (1 - pctY) * hgt; + } + + function getXPos(val, scale, wid, lft) { + var pctX = getValPct(val, scale); + return lft + pctX * wid; + } + + var nullMinMax = [null, null]; + + function snapNumX(self, dataMin, dataMax) { + return dataMin == null ? nullMinMax : [dataMin, dataMax]; + } + + var snapTimeX = snapNumX; + + // this ensures that non-temporal/numeric y-axes get multiple-snapped padding added above/below + // TODO: also account for incrs when snapping to ensure top of axis gets a tick & value + function snapNumY(self, dataMin, dataMax) { + return dataMin == null ? nullMinMax : rangeNum(dataMin, dataMax, 0.1, true); + } + + function snapLogY(self, dataMin, dataMax, scale) { + return dataMin == null ? nullMinMax : rangeLog(dataMin, dataMax, self.scales[scale].log, false); + } + + var snapLogX = snapLogY; + + // dim is logical (getClientBoundingRect) pixels, not canvas pixels + function findIncr(min, max, incrs, dim, minSpace) { + var pxPerUnit = dim / (max - min); + + var minDec = (""+floor(min)).length; + + for (var i = 0; i < incrs.length; i++) { + var space = incrs[i] * pxPerUnit; + + var incrDec = incrs[i] < 10 ? fixedDec.get(incrs[i]) : 0; + + if (space >= minSpace && minDec + incrDec < 17) + { return [incrs[i], space]; } + } + + return [0, 0]; + } + + function pxRatioFont(font) { + var fontSize; + font = font.replace(/(\d+)px/, function (m, p1) { return (fontSize = round(p1 * pxRatio)) + 'px'; }); + return [font, fontSize]; + } + + function uPlot(opts, data, then) { + var self = {}; + + var ready = false; + self.status = 0; + + var root = self.root = placeDiv(UPLOT); + + if (opts.id != null) + { root.id = opts.id; } + + addClass(root, opts.class); + + if (opts.title) { + var title = placeDiv(TITLE, root); + title.textContent = opts.title; + } + + var can = placeTag("canvas"); + var ctx = self.ctx = can.getContext("2d"); + + var wrap = placeDiv(WRAP, root); + var under = placeDiv(UNDER, wrap); + wrap.appendChild(can); + var over = placeDiv(OVER, wrap); + + opts = copy(opts); + + (opts.plugins || []).forEach(function (p) { + if (p.opts) + { opts = p.opts(self, opts) || opts; } + }); + + + + var series = self.series = setDefaults(opts.series || [], xSeriesOpts, ySeriesOpts, false); + var axes = self.axes = setDefaults(opts.axes || [], xAxisOpts, yAxisOpts, true); + var scales = self.scales = {}; + + var xScaleKey = series[0].scale; + + function initScale(scaleKey) { + var sc = scales[scaleKey]; + + if (sc == null) { + var scaleOpts = (opts.scales || EMPTY_OBJ)[scaleKey] || EMPTY_OBJ; + + if (scaleOpts.from != null) { + // ensure parent is initialized + initScale(scaleOpts.from); + // dependent scales inherit + scales[scaleKey] = assign({}, scales[scaleOpts.from], scaleOpts); + } + else { + sc = scales[scaleKey] = assign({}, (scaleKey == xScaleKey ? xScaleOpts : yScaleOpts), scaleOpts); + + var isTime = sc.time; + var isLog = sc.distr == 3; + + var rn = sc.range; + + if (scaleKey != xScaleKey && !isArr(rn) && isObj(rn)) { + var cfg = rn; + // this is similar to snapNumY + rn = function (self, dataMin, dataMax) { return dataMin == null ? nullMinMax : rangeNum(dataMin, dataMax, cfg); }; + } + + sc.range = fnOrSelf(rn || (isTime ? snapTimeX : scaleKey == xScaleKey ? (isLog ? snapLogX : snapNumX) : (isLog ? snapLogY : snapNumY))); + + sc.auto = fnOrSelf(sc.auto); + } + } + } + + initScale("x"); + initScale("y"); + + series.forEach(function (s, i) { + initScale(s.scale); + }); + + for (var k in opts.scales) + { initScale(k); } + + var xScaleDistr = scales[xScaleKey].distr; + + var pendScales = {}; + + // explicitly-set initial scales + for (var k$1 in scales) { + var sc = scales[k$1]; + + if (sc.min != null || sc.max != null) + { pendScales[k$1] = {min: sc.min, max: sc.max}; } + } + + var gutters = self.gutters = assign({ + x: round(yAxisOpts.size / 2), + y: round(xAxisOpts.size / 3), + _x: null, + _y: null, + }, opts.gutters); + + gutters.x = fnOrSelf(gutters.x); + gutters.y = fnOrSelf(gutters.y); + gutters._x = gutters.x(self); + gutters._y = gutters.y(self); + + // self.tz = opts.tz || Intl.DateTimeFormat().resolvedOptions().timeZone; + var _tzDate = (opts.tzDate || (function (ts) { return new Date(ts * 1e3); })); + var _fmtDate = (opts.fmtDate || fmtDate); + + var _timeAxisSplits = timeAxisSplits(_tzDate); + var _timeAxisVals = timeAxisVals(_tzDate, timeAxisStamps(_timeAxisStamps, _fmtDate)); + var _timeSeriesVal = timeSeriesVal(_tzDate, timeSeriesStamp(_timeSeriesStamp, _fmtDate)); + + var legend = assign({show: true, live: true}, opts.legend); + var showLegend = legend.show; + + var legendEl; + var legendRows = []; + var legendCols; + var multiValLegend = false; + + if (showLegend) { + legendEl = placeTag("table", LEGEND, root); + + var getMultiVals = series[1] ? series[1].values : null; + multiValLegend = getMultiVals != null; + + if (multiValLegend) { + var head = placeTag("tr", LEGEND_THEAD, legendEl); + placeTag("th", null, head); + legendCols = getMultiVals(self, 1, 0); + + for (var key in legendCols) + { placeTag("th", LEGEND_LABEL, head).textContent = key; } + } + else { + legendCols = {_: 0}; + addClass(legendEl, LEGEND_INLINE); + legend.live && addClass(legendEl, LEGEND_LIVE); + } + } + + function initLegendRow(s, i) { + if (i == 0 && (multiValLegend || !legend.live)) + { return null; } + + var _row = []; + + var row = placeTag("tr", LEGEND_SERIES, legendEl, legendEl.childNodes[i]); + + addClass(row, s.class); + + if (!s.show) + { addClass(row, OFF); } + + var label = placeTag("th", null, row); + + var indic = placeDiv(LEGEND_MARKER, label); + indic.style.borderColor = s.width ? s.stroke : i > 0 && s.points.width ? s.points.stroke : null; + indic.style.backgroundColor = s.fill || null; + + var text = placeDiv(LEGEND_LABEL, label); + text.textContent = s.label; + + if (i > 0) { + onMouse("click", label, function (e) { + if ( cursor._lock) + { return; } + + setSeries(series.indexOf(s), {show: !s.show}, syncOpts.setSeries); + }); + + if (cursorFocus) { + onMouse(mouseenter, label, function (e) { + if (cursor._lock) + { return; } + + setSeries(series.indexOf(s), {focus: true}, syncOpts.setSeries); + }); + } + } + + for (var key in legendCols) { + var v = placeTag("td", LEGEND_VALUE, row); + v.textContent = "--"; + _row.push(v); + } + + return _row; + } + + var mouseListeners = new Map(); + + function onMouse(ev, targ, fn) { + var targListeners = mouseListeners.get(targ) || {}; + var listener = cursor.bind[ev](self, targ, fn); + + if (listener) { + on(ev, targ, targListeners[ev] = listener); + mouseListeners.set(targ, targListeners); + } + } + + function offMouse(ev, targ, fn) { + var targListeners = mouseListeners.get(targ) || {}; + off(ev, targ, targListeners[ev]); + targListeners[ev] = null; + } + + var fullWidCss = 0; + var fullHgtCss = 0; + + var plotWidCss = 0; + var plotHgtCss = 0; + + // plot margins to account for axes + var plotLftCss = 0; + var plotTopCss = 0; + + var plotLft = 0; + var plotTop = 0; + var plotWid = 0; + var plotHgt = 0; + + self.bbox = {}; + + var shouldSetScales = false; + var shouldSetSize = false; + var shouldConvergeSize = false; + var shouldSetCursor = false; + var shouldSetLegend = false; + + function _setSize(width, height) { + if (width != self.width || height != self.height) + { calcSize(width, height); } + + resetYSeries(false); + + shouldConvergeSize = true; + shouldSetSize = true; + shouldSetCursor = true; + shouldSetLegend = true; + commit(); + } + + function calcSize(width, height) { + // log("calcSize()", arguments); + + self.width = fullWidCss = plotWidCss = width; + self.height = fullHgtCss = plotHgtCss = height; + plotLftCss = plotTopCss = 0; + + calcPlotRect(); + calcAxesRects(); + + var bb = self.bbox; + + plotLft = bb[LEFT] = incrRound(plotLftCss * pxRatio, 0.5); + plotTop = bb[TOP] = incrRound(plotTopCss * pxRatio, 0.5); + plotWid = bb[WIDTH] = incrRound(plotWidCss * pxRatio, 0.5); + plotHgt = bb[HEIGHT] = incrRound(plotHgtCss * pxRatio, 0.5); + } + + function convergeSize() { + var converged = false; + + while (!converged) { + var axesConverged = axesCalc(); + var guttersConverged = guttersCalc(); + + converged = axesConverged && guttersConverged; + + if (!converged) { + calcSize(self.width, self.height); + shouldSetSize = true; + } + } + } + + function setSize(ref) { + var width = ref.width; + var height = ref.height; + + _setSize(width, height); + } + + self.setSize = setSize; + + // accumulate axis offsets, reduce canvas width + function calcPlotRect() { + // easements for edge labels + var hasTopAxis = false; + var hasBtmAxis = false; + var hasRgtAxis = false; + var hasLftAxis = false; + + axes.forEach(function (axis, i) { + if (axis.show && axis._show) { + var side = axis.side; + var _size = axis._size; + var isVt = side % 2; + var labelSize = axis.labelSize = (axis.label != null ? (axis.labelSize || 30) : 0); + + var fullSize = _size + labelSize; + + if (fullSize > 0) { + if (isVt) { + plotWidCss -= fullSize; + + if (side == 3) { + plotLftCss += fullSize; + hasLftAxis = true; + } + else + { hasRgtAxis = true; } + } + else { + plotHgtCss -= fullSize; + + if (side == 0) { + plotTopCss += fullSize; + hasTopAxis = true; + } + else + { hasBtmAxis = true; } + } + } + } + }); + + // hz gutters + if (hasTopAxis || hasBtmAxis) { + if (!hasRgtAxis) + { plotWidCss -= gutters._x; } + if (!hasLftAxis) { + plotWidCss -= gutters._x; + plotLftCss += gutters._x; + } + } + + // vt gutters + if (hasLftAxis || hasRgtAxis) { + if (!hasBtmAxis) + { plotHgtCss -= gutters._y; } + if (!hasTopAxis) { + plotHgtCss -= gutters._y; + plotTopCss += gutters._y; + } + } + } + + function calcAxesRects() { + // will accum + + var off1 = plotLftCss + plotWidCss; + var off2 = plotTopCss + plotHgtCss; + // will accum - + var off3 = plotLftCss; + var off0 = plotTopCss; + + function incrOffset(side, size) { + + switch (side) { + case 1: off1 += size; return off1 - size; + case 2: off2 += size; return off2 - size; + case 3: off3 -= size; return off3 + size; + case 0: off0 -= size; return off0 + size; + } + } + + axes.forEach(function (axis, i) { + if (axis.show && axis._show) { + var side = axis.side; + + axis._pos = incrOffset(side, axis._size); + + if (axis.label != null) + { axis._lpos = incrOffset(side, axis.labelSize); } + } + }); + } + + var cursor = (self.cursor = assign({}, cursorOpts, opts.cursor)); + + (cursor._lock = false); + (cursor.points.show = fnOrSelf(cursor.points.show)); + + var focus = self.focus = assign({}, opts.focus || {alpha: 0.3}, cursor.focus); + var cursorFocus = focus.prox >= 0; + + // series-intersection markers + var cursorPts = [null]; + + function initCursorPt(s, si) { + if (si > 0) { + var pt = cursor.points.show(self, si); + + if (pt) { + addClass(pt, CURSOR_PT); + addClass(pt, s.class); + trans(pt, -10, -10, plotWidCss, plotHgtCss); + over.insertBefore(pt, cursorPts[si]); + + return pt; + } + } + } + + function initSeries(s, i) { + var isTime = scales[s.scale].time; + + var sv = s.value; + s.value = isTime ? (isStr(sv) ? timeSeriesVal(_tzDate, timeSeriesStamp(sv, _fmtDate)) : sv || _timeSeriesVal) : sv || numSeriesVal; + s.label = s.label || (isTime ? timeSeriesLabel : numSeriesLabel); + + if (i > 0) { + s.width = s.width == null ? 1 : s.width; + s.paths = s.paths || ( buildPaths); + s.fillTo = s.fillTo || seriesFillTo; + var _ptDia = ptDia(s.width, 1); + s.points = assign({}, { + size: _ptDia, + width: max(1, _ptDia * .2), + stroke: s.stroke, + space: _ptDia * 2, + }, s.points); + s.points.show = fnOrSelf(s.points.show); + s._paths = null; + } + + if (showLegend) + { legendRows.splice(i, 0, initLegendRow(s, i)); } + + if ( cursor.show) { + var pt = initCursorPt(s, i); + pt && cursorPts.splice(i, 0, pt); + } + } + + function addSeries(opts, si) { + si = si == null ? series.length : si; + + opts = setDefault(opts, si, xSeriesOpts, ySeriesOpts); + series.splice(si, 0, opts); + initSeries(series[si], si); + } + + self.addSeries = addSeries; + + function delSeries(i) { + series.splice(i, 1); + showLegend && legendRows.splice(i, 1)[0][0].parentNode.remove(); + cursorPts.length > 1 && cursorPts.splice(i, 1)[0].remove(); + + // TODO: de-init no-longer-needed scales? + } + + self.delSeries = delSeries; + + series.forEach(initSeries); + + function initAxis(axis, i) { + axis._show = axis.show; + + if (axis.show) { + var isVt = axis.side % 2; + + var sc = scales[axis.scale]; + + // this can occur if all series specify non-default scales + if (sc == null) { + axis.scale = isVt ? series[1].scale : xScaleKey; + sc = scales[axis.scale]; + } + + // also set defaults for incrs & values based on axis distr + var isTime = sc.time; + + axis.size = fnOrSelf(axis.size); + axis.space = fnOrSelf(axis.space); + axis.rotate = fnOrSelf(axis.rotate); + axis.incrs = fnOrSelf(axis.incrs || ( sc.distr == 2 ? wholeIncrs : (isTime ? timeIncrs : numIncrs))); + axis.splits = fnOrSelf(axis.splits || (isTime && sc.distr == 1 ? _timeAxisSplits : sc.distr == 3 ? logAxisSplits : numAxisSplits)); + + var av = axis.values; + axis.values = ( + isTime ? ( + isArr(av) ? + timeAxisVals(_tzDate, timeAxisStamps(av, _fmtDate)) : + isStr(av) ? + timeAxisVal(_tzDate, av) : + av || _timeAxisVals + ) : av || numAxisVals + ); + + axis.filter = fnOrSelf(axis.filter || ( sc.distr == 3 ? logAxisValsFilt : retArg1)); + + axis.font = pxRatioFont(axis.font); + axis.labelFont = pxRatioFont(axis.labelFont); + + axis._size = axis.size(self, null, i); + + axis._space = + axis._rotate = + axis._incrs = + axis._found = // foundIncrSpace + axis._splits = + axis._values = null; + } + } + + // set axis defaults + axes.forEach(initAxis); + + var dataLen; + var dataIsGap; + + // rendered data window + var i0 = null; + var i1 = null; + var idxs = series[0].idxs; + + var data0 = null; + + var viaAutoScaleX = false; + + function setData(_data, _resetScales) { + if (!isArr(_data) && isObj(_data)) { + dataIsGap = _data.isGap; + _data = _data.data; + } + + _data = _data || []; + _data[0] = _data[0] || []; + + self.data = _data; + data = _data.slice(); + data0 = data[0]; + dataLen = data0.length; + + if (xScaleDistr == 2) + { data[0] = data0.map(function (v, i) { return i; }); } + + resetYSeries(true); + + fire("setData"); + + if (_resetScales !== false) { + var xsc = scales[xScaleKey]; + + if (xsc.auto(self, viaAutoScaleX)) + { autoScaleX(); } + else + { _setScale(xScaleKey, xsc.min, xsc.max); } + + shouldSetCursor = true; + shouldSetLegend = true; + commit(); + } + } + + self.setData = setData; + + function autoScaleX() { + var assign, assign$1; + + viaAutoScaleX = true; + + var _min, _max; + + if (dataLen > 0) { + i0 = idxs[0] = 0; + i1 = idxs[1] = dataLen - 1; + + _min = data[0][i0]; + _max = data[0][i1]; + + if (xScaleDistr == 2) { + _min = i0; + _max = i1; + } + else if (dataLen == 1) { + if (xScaleDistr == 3) + { (assign = rangeLog(_min, _min, scales[xScaleKey].log, false), _min = assign[0], _max = assign[1]); } + else if (scales[xScaleKey].time) + { _max = _min + 86400; } + else + { (assign$1 = rangeNum(_min, _max, 0.1, true), _min = assign$1[0], _max = assign$1[1]); } + } + } + else { + i0 = idxs[0] = _min = null; + i1 = idxs[1] = _max = null; + } + + _setScale(xScaleKey, _min, _max); + + viaAutoScaleX = false; + } + + function setCtxStyle(stroke, width, dash, fill) { + ctx.strokeStyle = stroke || transparent; + ctx.lineWidth = width; + ctx.lineJoin = "round"; + ctx.setLineDash(dash || []); + ctx.fillStyle = fill || transparent; + } + + function setScales() { + // log("setScales()", arguments); + + // wip scales + var wipScales = copy(scales); + + for (var k in wipScales) { + var wsc = wipScales[k]; + var psc = pendScales[k]; + + if (psc != null && psc.min != null) { + assign(wsc, psc); + + // explicitly setting the x-scale invalidates everything (acts as redraw) + if (k == xScaleKey) + { resetYSeries(true); } + } + else if (k != xScaleKey) { + if (dataLen == 0 && wsc.from == null) { + var minMax = wsc.range(self, null, null, k); + wsc.min = minMax[0]; + wsc.max = minMax[1]; + } + else { + wsc.min = inf; + wsc.max = -inf; + } + } + } + + if (dataLen > 0) { + // pre-range y-scales from y series' data values + series.forEach(function (s, i) { + var k = s.scale; + var wsc = wipScales[k]; + var psc = pendScales[k]; + + if (i == 0) { + var minMax = wsc.range(self, wsc.min, wsc.max, k); + + wsc.min = minMax[0]; + wsc.max = minMax[1]; + + i0 = closestIdx(wsc.min, data[0]); + i1 = closestIdx(wsc.max, data[0]); + + // closest indices can be outside of view + if (data[0][i0] < wsc.min) + { i0++; } + if (data[0][i1] > wsc.max) + { i1--; } + + s.min = data0[i0]; + s.max = data0[i1]; + } + else if (s.show && s.auto && wsc.auto(self, viaAutoScaleX) && (psc == null || psc.min == null)) { + // only run getMinMax() for invalidated series data, else reuse + var minMax$1 = s.min == null ? getMinMax(data[i], i0, i1, s.sorted) : [s.min, s.max]; + + // initial min/max + wsc.min = min(wsc.min, s.min = minMax$1[0]); + wsc.max = max(wsc.max, s.max = minMax$1[1]); + } + + s.idxs[0] = i0; + s.idxs[1] = i1; + }); + + // range independent scales + for (var k$1 in wipScales) { + var wsc$1 = wipScales[k$1]; + var psc$1 = pendScales[k$1]; + + if (wsc$1.from == null && (psc$1 == null || psc$1.min == null)) { + var minMax$1 = wsc$1.range( + self, + wsc$1.min == inf ? null : wsc$1.min, + wsc$1.max == -inf ? null : wsc$1.max, + k$1 + ); + wsc$1.min = minMax$1[0]; + wsc$1.max = minMax$1[1]; + } + } + } + + // range dependent scales + for (var k$2 in wipScales) { + var wsc$2 = wipScales[k$2]; + + if (wsc$2.from != null) { + var base = wipScales[wsc$2.from]; + var minMax$2 = wsc$2.range(self, base.min, base.max, k$2); + wsc$2.min = minMax$2[0]; + wsc$2.max = minMax$2[1]; + } + } + + var changed = {}; + var anyChanged = false; + + for (var k$3 in wipScales) { + var wsc$3 = wipScales[k$3]; + var sc = scales[k$3]; + + if (sc.min != wsc$3.min || sc.max != wsc$3.max) { + sc.min = wsc$3.min; + sc.max = wsc$3.max; + changed[k$3] = anyChanged = true; + } + } + + if (anyChanged) { + // invalidate paths of all series on changed scales + series.forEach(function (s) { + if (changed[s.scale]) + { s._paths = null; } + }); + + for (var k$4 in changed) { + shouldConvergeSize = true; + fire("setScale", k$4); + } + + if ( cursor.show) + { shouldSetCursor = true; } + } + + for (var k$5 in pendScales) + { pendScales[k$5] = null; } + } + + // TODO: drawWrap(si, drawPoints) (save, restore, translate, clip) + + function drawPoints(si) { + // log("drawPoints()", arguments); + + var s = series[si]; + var p = s.points; + + var width = roundDec(p.width * pxRatio, 3); + var offset = (width % 2) / 2; + var isStroked = p.width > 0; + + var rad = (p.size - p.width) / 2 * pxRatio; + var dia = roundDec(rad * 2, 3); + + ctx.translate(offset, offset); + + ctx.save(); + + ctx.beginPath(); + ctx.rect( + plotLft - dia, + plotTop - dia, + plotWid + dia * 2, + plotHgt + dia * 2 + ); + ctx.clip(); + + ctx.globalAlpha = s.alpha; + + var path = new Path2D(); + + for (var pi = i0; pi <= i1; pi++) { + if (data[si][pi] != null) { + var x = round(getXPos(data[0][pi], scales[xScaleKey], plotWid, plotLft)); + var y = round(getYPos(data[si][pi], scales[s.scale], plotHgt, plotTop)); + + path.moveTo(x + rad, y); + path.arc(x, y, rad, 0, PI * 2); + } + } + + setCtxStyle( + p.stroke, + width, + null, + p.fill || (isStroked ? "#fff" : s.stroke) + ); + + ctx.fill(path); + isStroked && ctx.stroke(path); + + ctx.globalAlpha = 1; + + ctx.restore(); + + ctx.translate(-offset, -offset); + } + + // grabs the nearest indices with y data outside of x-scale limits + function getOuterIdxs(ydata) { + var _i0 = clamp(i0 - 1, 0, dataLen - 1); + var _i1 = clamp(i1 + 1, 0, dataLen - 1); + + while (ydata[_i0] == null && _i0 > 0) + { _i0--; } + + while (ydata[_i1] == null && _i1 < dataLen - 1) + { _i1++; } + + return [_i0, _i1]; + } + + var dir = 1; + + function drawSeries() { + // path building loop must be before draw loop to ensure that all bands are fully constructed + series.forEach(function (s, i) { + if (i > 0 && s.show && s._paths == null) { + var _idxs = getOuterIdxs(data[i]); + s._paths = s.paths(self, i, _idxs[0], _idxs[1]); + } + }); + + series.forEach(function (s, i) { + if (i > 0 && s.show) { + if (s._paths) + { drawPath(i); } + + if (s.points.show(self, i, i0, i1)) + { drawPoints(i); } + + fire("drawSeries", i); + } + }); + } + + function drawPath(si) { + var s = series[si]; + + if (dir == 1) { + var ref = s._paths; + var stroke = ref.stroke; + var fill = ref.fill; + var clip = ref.clip; + var width = roundDec(s[WIDTH] * pxRatio, 3); + var offset = (width % 2) / 2; + + setCtxStyle(s.stroke, width, s.dash, s.fill); + + ctx.globalAlpha = s.alpha; + + ctx.translate(offset, offset); + + ctx.save(); + + var lft = plotLft, + top = plotTop, + wid = plotWid, + hgt = plotHgt; + + var halfWid = width * pxRatio / 2; + + if (s.min == 0) + { hgt += halfWid; } + + if (s.max == 0) { + top -= halfWid; + hgt += halfWid; + } + + ctx.beginPath(); + ctx.rect(lft, top, wid, hgt); + ctx.clip(); + + if (clip != null) + { ctx.clip(clip); } + + if (s.band) { + ctx.fill(stroke); + width && ctx.stroke(stroke); + } + else { + width && ctx.stroke(stroke); + + if (s.fill != null) + { ctx.fill(fill); } + } + + ctx.restore(); + + ctx.translate(-offset, -offset); + + ctx.globalAlpha = 1; + } + + if (s.band) + { dir *= -1; } + } + + function buildClip(is, gaps, nullHead, nullTail) { + var s = series[is]; + + var clip = null; + + // create clip path (invert gaps and non-gaps) + if (gaps.length > 0 && !s.spanGaps) { + clip = new Path2D(); + + var prevGapEnd = plotLft; + + for (var i = 0; i < gaps.length; i++) { + var g = gaps[i]; + + clip.rect(prevGapEnd, plotTop, g[0] - prevGapEnd, plotTop + plotHgt); + + prevGapEnd = g[1]; + } + + clip.rect(prevGapEnd, plotTop, plotLft + plotWid - prevGapEnd, plotTop + plotHgt); + } + + return clip; + } + + function addGap(gaps, fromX, toX) { + if (toX > fromX) { + var prevGap = gaps[gaps.length - 1]; + + if (prevGap && prevGap[0] == fromX) // TODO: gaps must be encoded at stroke widths? + { prevGap[1] = toX; } + else + { gaps.push([fromX, toX]); } + } + } + + function nonNullIdx(data, _i0, _i1, dir) { + for (var i = dir == 1 ? _i0 : _i1; i >= _i0 && i <= _i1; i += dir) { + if (data[i] != null) + { return i; } + } + + return -1; + } + + function buildPaths(self, is, _i0, _i1) { + var s = series[is]; + var isGap = dataIsGap || s.isGap; + + var xdata = data[0]; + var ydata = data[is]; + var scaleX = scales[xScaleKey]; + var scaleY = scales[s.scale]; + + var _paths = dir == 1 ? {stroke: new Path2D(), fill: null, clip: null} : series[is-1]._paths; + var stroke = _paths.stroke; + var width = roundDec(s[WIDTH] * pxRatio, 3); + + var minY = inf, + maxY = -inf, + outY, outX; + + // todo: don't build gaps on dir = -1 pass + var gaps = []; + + var accX = round(getXPos(xdata[dir == 1 ? _i0 : _i1], scaleX, plotWid, plotLft)); + var accGaps = false; + + // data edges + var lftIdx = nonNullIdx(ydata, _i0, _i1, 1); + var rgtIdx = nonNullIdx(ydata, _i0, _i1, -1); + var lftX = incrRound(getXPos(xdata[lftIdx], scaleX, plotWid, plotLft), 0.5); + var rgtX = incrRound(getXPos(xdata[rgtIdx], scaleX, plotWid, plotLft), 0.5); + + if (lftX > plotLft) + { addGap(gaps, plotLft, lftX); } + + // the moves the shape edge outside the canvas so stroke doesnt bleed in + if (s.band && dir == 1) + { stroke.lineTo(lftX - width * 2, round(getYPos(ydata[_i0], scaleY, plotHgt, plotTop))); } + + for (var i = dir == 1 ? _i0 : _i1; i >= _i0 && i <= _i1; i += dir) { + var x = round(getXPos(xdata[i], scaleX, plotWid, plotLft)); + + if (x == accX) { + if (ydata[i] != null) { + outY = round(getYPos(ydata[i], scaleY, plotHgt, plotTop)); + minY = min(outY, minY); + maxY = max(outY, maxY); + } + else if (!accGaps && isGap(self, is, i)) + { accGaps = true; } + } + else { + var _addGap = false; + + if (minY != inf) { + stroke.lineTo(accX, minY); + stroke.lineTo(accX, maxY); + stroke.lineTo(accX, outY); + outX = accX; + } + else if (accGaps) { + _addGap = true; + accGaps = false; + } + + if (ydata[i] != null) { + outY = round(getYPos(ydata[i], scaleY, plotHgt, plotTop)); + stroke.lineTo(x, outY); + minY = maxY = outY; + + // prior pixel can have data but still start a gap if ends with null + if (x - accX > 1 && ydata[i-1] == null && isGap(self, is, i-1)) + { _addGap = true; } + } + else { + minY = inf; + maxY = -inf; + + if (!accGaps && isGap(self, is, i)) + { accGaps = true; } + } + + _addGap && addGap(gaps, outX, x); + + accX = x; + } + } + + if (rgtX < plotLft + plotWid) + { addGap(gaps, rgtX, plotLft + plotWid); } + + if (s.band) { + var _x, _iy, ydata2; + + // the moves the shape edge outside the canvas so stroke doesnt bleed in + if (dir == 1) { + _x = rgtX + width * 2; + _iy = rgtIdx; + ydata2 = data[is + 1]; + } + else { + _x = lftX - width * 2; + _iy = lftIdx; + ydata2 = data[is - 1]; + } + + stroke.lineTo(_x, round(getYPos(ydata[_iy], scaleY, plotHgt, plotTop))); + stroke.lineTo(_x, round(getYPos(ydata2[_iy], scaleY, plotHgt, plotTop))); + } + + if (dir == 1) { + _paths.clip = buildClip(is, gaps, ydata[_i0] == null, ydata[_i1] == null); + + if (s.fill != null) { + var fill = _paths.fill = new Path2D(stroke); + + var fillTo = round(getYPos(s.fillTo(self, is, s.min, s.max), scaleY, plotHgt, plotTop)); + fill.lineTo(rgtX, fillTo); + fill.lineTo(lftX, fillTo); + } + } + + if (s.band) + { dir *= -1; } + + return _paths; + } + + self.paths = buildPaths; + + function getIncrSpace(axisIdx, min, max, fullDim) { + var axis = axes[axisIdx]; + + var incrSpace; + + if (fullDim <= 0) + { incrSpace = [0, 0]; } + else { + var minSpace = axis._space = axis.space(self, axisIdx, min, max, fullDim); + var incrs = axis._incrs = axis.incrs(self, axisIdx, min, max, fullDim, minSpace); + incrSpace = axis._found = findIncr(min, max, incrs, fullDim, minSpace); + } + + return incrSpace; + } + + function drawOrthoLines(offs, filts, ori, side, pos0, len, width, stroke, dash) { + var offset = (width % 2) / 2; + + ctx.translate(offset, offset); + + setCtxStyle(stroke, width, dash); + + ctx.beginPath(); + + var x0, y0, x1, y1, pos1 = pos0 + (side == 0 || side == 3 ? -len : len); + + if (ori == 0) { + y0 = pos0; + y1 = pos1; + } + else { + x0 = pos0; + x1 = pos1; + } + + offs.forEach(function (off, i) { + if (filts[i] == null) + { return; } + + if (ori == 0) + { x0 = x1 = off; } + else + { y0 = y1 = off; } + + ctx.moveTo(x0, y0); + ctx.lineTo(x1, y1); + }); + + ctx.stroke(); + + ctx.translate(-offset, -offset); + } + + function axesCalc() { + // log("axesCalc()", arguments); + + var converged = true; + + axes.forEach(function (axis, i) { + if (!axis.show) + { return; } + + var scale = scales[axis.scale]; + + if (scale.min == null) { + if (axis._show) { + converged = false; + axis._show = false; + resetYSeries(false); + } + return; + } + else { + if (!axis._show) { + converged = false; + axis._show = true; + resetYSeries(false); + } + } + + var side = axis.side; + var ori = side % 2; + + var min = scale.min; + var max = scale.max; // // should this toggle them ._show = false + + var ref = getIncrSpace(i, min, max, ori == 0 ? plotWidCss : plotHgtCss); + var _incr = ref[0]; + var _space = ref[1]; + + if (_space == 0) + { return; } + + // if we're using index positions, force first tick to match passed index + var forceMin = scale.distr == 2; + + var _splits = axis._splits = axis.splits(self, i, min, max, _incr, _space, forceMin); + + // tick labels + // BOO this assumes a specific data/series + var splits = scale.distr == 2 ? _splits.map(function (i) { return data0[i]; }) : _splits; + var incr = scale.distr == 2 ? data0[_splits[1]] - data0[_splits[0]] : _incr; + + var values = axis._values = axis.values(self, axis.filter(self, splits, i, _space, incr), i, _space, incr); + + // rotating of labels only supported on bottom x axis + axis._rotate = side == 2 ? axis.rotate(self, values, i, _space) : 0; + + var oldSize = axis._size; + + axis._size = axis.size(self, values, i); + + if (oldSize != null && axis._size != oldSize) // ready && ? + { converged = false; } + }); + + return converged; + } + + function guttersCalc() { + var converged = true; + + var _x = gutters._x; + var _y = gutters._y; + + gutters._x = gutters.x(self); + gutters._y = gutters.y(self); + + if (gutters._x != _x || gutters._y != _y) + { converged = false; } + + return converged; + } + + function drawAxesGrid() { + axes.forEach(function (axis, i) { + if (!axis.show || !axis._show) + { return; } + + var scale = scales[axis.scale]; + var side = axis.side; + var ori = side % 2; + + var getPos = ori == 0 ? getXPos : getYPos; + var plotDim = ori == 0 ? plotWid : plotHgt; + var plotOff = ori == 0 ? plotLft : plotTop; + + var axisGap = round(axis.gap * pxRatio); + + var ticks = axis.ticks; + var tickSize = ticks.show ? round(ticks.size * pxRatio) : 0; + + var ref = axis._found; + var _incr = ref[0]; + var _space = ref[1]; + var _splits = axis._splits; + + // tick labels + // BOO this assumes a specific data/series + var splits = scale.distr == 2 ? _splits.map(function (i) { return data0[i]; }) : _splits; + var incr = scale.distr == 2 ? data0[_splits[1]] - data0[_splits[0]] : _incr; + + // rotating of labels only supported on bottom x axis + var angle = axis._rotate * -PI/180; + + var basePos = round(axis._pos * pxRatio); + var shiftAmt = tickSize + axisGap; + var shiftDir = ori == 0 && side == 0 || ori == 1 && side == 3 ? -1 : 1; + var finalPos = basePos + shiftAmt * shiftDir; + var y = ori == 0 ? finalPos : 0; + var x = ori == 1 ? finalPos : 0; + + ctx.font = axis.font[0]; + ctx.fillStyle = axis.stroke || hexBlack; // rgba? + ctx.textAlign = axis.align == 1 ? LEFT : + axis.align == 2 ? RIGHT : + angle > 0 ? LEFT : + angle < 0 ? RIGHT : + ori == 0 ? "center" : side == 3 ? RIGHT : LEFT; + ctx.textBaseline = angle || + ori == 1 ? "middle" : side == 2 ? TOP : BOTTOM; + + var lineHeight = axis.font[1] * lineMult; + + var canOffs = _splits.map(function (val) { return round(getPos(val, scale, plotDim, plotOff)); }); + + axis._values.forEach(function (val, i) { + if (val == null) + { return; } + + if (ori == 0) + { x = canOffs[i]; } + else + { y = canOffs[i]; } + + (""+val).split(/\n/gm).forEach(function (text, j) { + if (angle) { + ctx.save(); + ctx.translate(x, y + j * lineHeight); + ctx.rotate(angle); + ctx.fillText(text, 0, 0); + ctx.restore(); + } + else + { ctx.fillText(text, x, y + j * lineHeight); } + }); + }); + + // axis label + if (axis.label) { + ctx.save(); + + var baseLpos = round(axis._lpos * pxRatio); + + if (ori == 1) { + x = y = 0; + + ctx.translate( + baseLpos, + round(plotTop + plotHgt / 2) + ); + ctx.rotate((side == 3 ? -PI : PI) / 2); + + } + else { + x = round(plotLft + plotWid / 2); + y = baseLpos; + } + + ctx.font = axis.labelFont[0]; + // ctx.fillStyle = axis.labelStroke || hexBlack; // rgba? + ctx.textAlign = "center"; + ctx.textBaseline = side == 2 ? TOP : BOTTOM; + + ctx.fillText(axis.label, x, y); + + ctx.restore(); + } + + // ticks + if (ticks.show) { + drawOrthoLines( + canOffs, + ticks.filter(self, splits, i, _space, incr), + ori, + side, + basePos, + tickSize, + roundDec(ticks[WIDTH] * pxRatio, 3), + ticks.stroke + ); + } + + // grid + var grid = axis.grid; + + if (grid.show) { + drawOrthoLines( + canOffs, + grid.filter(self, splits, i, _space, incr), + ori, + ori == 0 ? 2 : 1, + ori == 0 ? plotTop : plotLft, + ori == 0 ? plotHgt : plotWid, + roundDec(grid[WIDTH] * pxRatio, 3), + grid.stroke, + grid.dash + ); + } + }); + + fire("drawAxes"); + } + + function resetYSeries(minMax) { + // log("resetYSeries()", arguments); + + series.forEach(function (s, i) { + if (i > 0) { + s._paths = null; + + if (minMax) { + s.min = null; + s.max = null; + } + } + }); + } + + var queuedCommit = false; + + // could do rAF instead of microTask, or Promose.resolve().then() + function commit() { + if (!queuedCommit) { + microTask(_commit); + queuedCommit = true; + } + } + + function _commit() { + // log("_commit()", arguments); + + if (shouldSetScales) { + setScales(); + shouldSetScales = false; + } + + if (shouldConvergeSize) { + convergeSize(); + shouldConvergeSize = false; + } + + if (shouldSetSize) { + setStylePx(under, LEFT, plotLftCss); + setStylePx(under, TOP, plotTopCss); + setStylePx(under, WIDTH, plotWidCss); + setStylePx(under, HEIGHT, plotHgtCss); + + setStylePx(over, LEFT, plotLftCss); + setStylePx(over, TOP, plotTopCss); + setStylePx(over, WIDTH, plotWidCss); + setStylePx(over, HEIGHT, plotHgtCss); + + setStylePx(wrap, WIDTH, fullWidCss); + setStylePx(wrap, HEIGHT, fullHgtCss); + + can[WIDTH] = round(fullWidCss * pxRatio); + can[HEIGHT] = round(fullHgtCss * pxRatio); + + syncRect(); + + fire("setSize"); + + shouldSetSize = false; + } + + // if (shouldSetSelect) { + // TODO: update .u-select metrics (if visible) + // setStylePx(selectDiv, TOP, select[TOP] = 0); + // setStylePx(selectDiv, LEFT, select[LEFT] = 0); + // setStylePx(selectDiv, WIDTH, select[WIDTH] = 0); + // setStylePx(selectDiv, HEIGHT, select[HEIGHT] = 0); + // shouldSetSelect = false; + // } + + if ( cursor.show && shouldSetCursor) { + updateCursor(); + shouldSetCursor = false; + } + + // if (true && legend.show && legend.live && shouldSetLegend) {} + + if (fullWidCss > 0 && fullHgtCss > 0) { + ctx.clearRect(0, 0, can[WIDTH], can[HEIGHT]); + fire("drawClear"); + drawAxesGrid(); + dataLen > 0 && drawSeries(); + fire("draw"); + } + + if (!ready) { + ready = true; + self.status = 1; + + fire("ready"); + } + + queuedCommit = false; + } + + self.redraw = function (rebuildPaths) { + if (rebuildPaths !== false) + { _setScale(xScaleKey, scales[xScaleKey].min, scales[xScaleKey].max); } + else + { commit(); } + }; + + // redraw() => setScale('x', scales.x.min, scales.x.max); + + // explicit, never re-ranged (is this actually true? for x and y) + function setScale(key, opts) { + var sc = scales[key]; + + if (sc.from == null) { + if (dataLen == 0) { + var minMax = sc.range(self, opts.min, opts.max, key); + opts.min = minMax[0]; + opts.max = minMax[1]; + } + + if (dataLen > 1 && opts.min != null && opts.max != null && opts.max - opts.min < 1e-16) + { return; } + + if (key == xScaleKey) { + if (sc.distr == 2 && dataLen > 0) { + opts.min = closestIdx(opts.min, data[0]); + opts.max = closestIdx(opts.max, data[0]); + } + } + + // log("setScale()", arguments); + + pendScales[key] = opts; + + shouldSetScales = true; + commit(); + } + } + + self.setScale = setScale; + + // INTERACTION + + var vt; + var hz; + + // starting position before cursor.move + var rawMouseLeft0; + var rawMouseTop0; + + // starting position + var mouseLeft0; + var mouseTop0; + + // current position before cursor.move + var rawMouseLeft1; + var rawMouseTop1; + + // current position + var mouseLeft1; + var mouseTop1; + + var dragging = false; + + var drag = cursor.drag; + + var dragX = drag.x; + var dragY = drag.y; + + if ( cursor.show) { + if (cursor.x) { + mouseLeft1 = cursor.left; + vt = placeDiv(CURSOR_X, over); + } + + if (cursor.y) { + mouseTop1 = cursor.top; + hz = placeDiv(CURSOR_Y, over); + } + } + + var select = self.select = assign({ + show: true, + over: true, + left: 0, + width: 0, + top: 0, + height: 0, + }, opts.select); + + var selectDiv = select.show ? placeDiv(SELECT, select.over ? over : under) : null; + + function setSelect(opts, _fire) { + if (select.show) { + for (var prop in opts) + { setStylePx(selectDiv, prop, select[prop] = opts[prop]); } + + _fire !== false && fire("setSelect"); + } + } + + self.setSelect = setSelect; + + function toggleDOM(i, onOff) { + var s = series[i]; + var label = showLegend ? legendRows[i][0].parentNode : null; + + if (s.show) + { label && remClass(label, OFF); } + else { + label && addClass(label, OFF); + cursorPts.length > 1 && trans(cursorPts[i], -10, -10, plotWidCss, plotHgtCss); + } + } + + function _setScale(key, min, max) { + setScale(key, {min: min, max: max}); + } + + function setSeries(i, opts, pub) { + // log("setSeries()", arguments); + + var s = series[i]; + + // will this cause redundant commit() if both show and focus are set? + if (opts.focus != null) + { setFocus(i); } + + if (opts.show != null) { + s.show = opts.show; + toggleDOM(i, opts.show); + + if (s.band) { + // not super robust, will break if two bands are adjacent + var ip = series[i+1] && series[i+1].band ? i+1 : i-1; + series[ip].show = s.show; + toggleDOM(ip, opts.show); + } + + _setScale(s.scale, null, null); + commit(); + } + + fire("setSeries", i, opts); + + pub && sync.pub("setSeries", self, i, opts); + } + + self.setSeries = setSeries; + + function _alpha(i, value) { + series[i].alpha = value; + + if ( cursor.show && cursorPts[i]) + { cursorPts[i].style.opacity = value; } + + if ( showLegend && legendRows[i]) + { legendRows[i][0].parentNode.style.opacity = value; } + } + + function _setAlpha(i, value) { + var s = series[i]; + + _alpha(i, value); + + if (s.band) { + // not super robust, will break if two bands are adjacent + var ip = series[i+1].band ? i+1 : i-1; + _alpha(ip, value); + } + } + + // y-distance + var closestDist; + var closestSeries; + var focusedSeries; + + function setFocus(i) { + if (i != focusedSeries) { + // log("setFocus()", arguments); + + series.forEach(function (s, i2) { + _setAlpha(i2, i == null || i2 == 0 || i2 == i ? 1 : focus.alpha); + }); + + focusedSeries = i; + commit(); + } + } + + if (showLegend && cursorFocus) { + on(mouseleave, legendEl, function (e) { + if (cursor._lock) + { return; } + setSeries(null, {focus: false}, syncOpts.setSeries); + updateCursor(); + }); + } + + function scaleValueAtPos(pos, scale) { + var dim = plotWidCss; + + if (scale != xScaleKey) { + dim = plotHgtCss; + pos = dim - pos; + } + + var pct = pos / dim; + + var sc = scales[scale], + _min = sc.min, + _max = sc.max; + + if (sc.distr == 3) { + _min = log10(_min); + _max = log10(_max); + return pow(10, _min + (_max - _min) * pct); + } + else + { return _min + (_max - _min) * pct; } + } + + function closestIdxFromXpos(pos) { + var v = scaleValueAtPos(pos, xScaleKey); + return closestIdx(v, data[0], i0, i1); + } + + self.valToIdx = function (val) { return closestIdx(val, data[0]); }; + self.posToIdx = closestIdxFromXpos; + self.posToVal = scaleValueAtPos; + self.valToPos = function (val, scale, can) { return ( + scale == xScaleKey ? + getXPos(val, scales[scale], + can ? plotWid : plotWidCss, + can ? plotLft : 0 + ) : + getYPos(val, scales[scale], + can ? plotHgt : plotHgtCss, + can ? plotTop : 0 + ) + ); }; + + // defers calling expensive functions + function batch(fn) { + fn(self); + commit(); + } + + self.batch = batch; + + (self.setCursor = function (opts) { + mouseLeft1 = opts.left; + mouseTop1 = opts.top; + // assign(cursor, opts); + updateCursor(); + }); + + var cursorRaf = 0; + + function updateCursor(ts, src) { + var assign; + + // ts == null && log("updateCursor()", arguments); + + cursorRaf = 0; + + rawMouseLeft1 = mouseLeft1; + rawMouseTop1 = mouseTop1; + + (assign = cursor.move(self, mouseLeft1, mouseTop1), mouseLeft1 = assign[0], mouseTop1 = assign[1]); + + if (cursor.show) { + cursor.x && trans(vt, round(mouseLeft1), 0, plotWidCss, plotHgtCss); + cursor.y && trans(hz, 0, round(mouseTop1), plotWidCss, plotHgtCss); + } + + var idx; + + // when zooming to an x scale range between datapoints the binary search + // for nearest min/max indices results in this condition. cheap hack :D + var noDataInRange = i0 > i1; + + closestDist = inf; + + // if cursor hidden, hide points & clear legend vals + if (mouseLeft1 < 0 || dataLen == 0 || noDataInRange) { + idx = null; + + for (var i = 0; i < series.length; i++) { + if (i > 0) { + cursorPts.length > 1 && trans(cursorPts[i], -10, -10, plotWidCss, plotHgtCss); + } + + if (showLegend && legend.live) { + if (i == 0 && multiValLegend) + { continue; } + + for (var j = 0; j < legendRows[i].length; j++) + { legendRows[i][j][firstChild].nodeValue = '--'; } + } + } + + if (cursorFocus) + { setSeries(null, {focus: true}, syncOpts.setSeries); } + } + else { + // let pctY = 1 - (y / rect[HEIGHT]); + + var valAtPos = scaleValueAtPos(mouseLeft1, xScaleKey); + + idx = closestIdx(valAtPos, data[0], i0, i1); + + var scX = scales[xScaleKey]; + + var xPos = roundDec(getXPos(data[0][idx], scX, plotWidCss, 0), 3); + + for (var i$1 = 0; i$1 < series.length; i$1++) { + var s = series[i$1]; + + var idx2 = cursor.dataIdx(self, i$1, idx, valAtPos); + var xPos2 = idx2 == idx ? xPos : roundDec(getXPos(data[0][idx2], scX, plotWidCss, 0), 3); + + if (i$1 > 0 && s.show) { + var valAtIdx = data[i$1][idx2]; + + var yPos = valAtIdx == null ? -10 : roundDec(getYPos(valAtIdx, scales[s.scale], plotHgtCss, 0), 3); + + if (yPos > 0) { + var dist = abs(yPos - mouseTop1); + + if (dist <= closestDist) { + closestDist = dist; + closestSeries = i$1; + } + } + + cursorPts.length > 1 && trans(cursorPts[i$1], xPos2, yPos, plotWidCss, plotHgtCss); + } + + if (showLegend && legend.live) { + if ((idx2 == cursor.idx && !shouldSetLegend) || i$1 == 0 && multiValLegend) + { continue; } + + var src$1 = i$1 == 0 && xScaleDistr == 2 ? data0 : data[i$1]; + + var vals = multiValLegend ? s.values(self, i$1, idx2) : {_: s.value(self, src$1[idx2], i$1, idx2)}; + + var j$1 = 0; + + for (var k in vals) + { legendRows[i$1][j$1++][firstChild].nodeValue = vals[k]; } + } + } + + shouldSetLegend = false; + } + + // nit: cursor.drag.setSelect is assumed always true + if (select.show && dragging) { + if (src != null) { + var ref = syncOpts.scales; + var xKey = ref[0]; + var yKey = ref[1]; + + // match the dragX/dragY implicitness/explicitness of src + var sdrag = src.cursor.drag; + dragX = sdrag._x; + dragY = sdrag._y; + + if (xKey) { + var sc = scales[xKey]; + var srcLeft = src.posToVal(src.select[LEFT], xKey); + var srcRight = src.posToVal(src.select[LEFT] + src.select[WIDTH], xKey); + + select[LEFT] = getXPos(srcLeft, sc, plotWidCss, 0); + select[WIDTH] = abs(select[LEFT] - getXPos(srcRight, sc, plotWidCss, 0)); + + setStylePx(selectDiv, LEFT, select[LEFT]); + setStylePx(selectDiv, WIDTH, select[WIDTH]); + + if (!yKey) { + setStylePx(selectDiv, TOP, select[TOP] = 0); + setStylePx(selectDiv, HEIGHT, select[HEIGHT] = plotHgtCss); + } + } + + if (yKey) { + var sc$1 = scales[yKey]; + var srcTop = src.posToVal(src.select[TOP], yKey); + var srcBottom = src.posToVal(src.select[TOP] + src.select[HEIGHT], yKey); + + select[TOP] = getYPos(srcTop, sc$1, plotHgtCss, 0); + select[HEIGHT] = abs(select[TOP] - getYPos(srcBottom, sc$1, plotHgtCss, 0)); + + setStylePx(selectDiv, TOP, select[TOP]); + setStylePx(selectDiv, HEIGHT, select[HEIGHT]); + + if (!xKey) { + setStylePx(selectDiv, LEFT, select[LEFT] = 0); + setStylePx(selectDiv, WIDTH, select[WIDTH] = plotWidCss); + } + } + } + else { + var rawDX = abs(rawMouseLeft1 - rawMouseLeft0); + var rawDY = abs(rawMouseTop1 - rawMouseTop0); + + dragX = drag.x && rawDX >= drag.dist; + dragY = drag.y && rawDY >= drag.dist; + + var uni = drag.uni; + + if (uni != null) { + // only calc drag status if they pass the dist thresh + if (dragX && dragY) { + dragX = rawDX >= uni; + dragY = rawDY >= uni; + + // force unidirectionality when both are under uni limit + if (!dragX && !dragY) { + if (rawDY > rawDX) + { dragY = true; } + else + { dragX = true; } + } + } + } + else if (drag.x && drag.y && (dragX || dragY)) + // if omni with no uni then both dragX / dragY should be true if either is true + { dragX = dragY = true; } + + if (dragX) { + var minX = min(mouseLeft0, mouseLeft1); + var dx = abs(mouseLeft1 - mouseLeft0); + + setStylePx(selectDiv, LEFT, select[LEFT] = minX); + setStylePx(selectDiv, WIDTH, select[WIDTH] = dx); + + if (!dragY) { + setStylePx(selectDiv, TOP, select[TOP] = 0); + setStylePx(selectDiv, HEIGHT, select[HEIGHT] = plotHgtCss); + } + } + + if (dragY) { + var minY = min(mouseTop0, mouseTop1); + var dy = abs(mouseTop1 - mouseTop0); + + setStylePx(selectDiv, TOP, select[TOP] = minY); + setStylePx(selectDiv, HEIGHT, select[HEIGHT] = dy); + + if (!dragX) { + setStylePx(selectDiv, LEFT, select[LEFT] = 0); + setStylePx(selectDiv, WIDTH, select[WIDTH] = plotWidCss); + } + } + + if (!dragX && !dragY) { + // the drag didn't pass the dist requirement + setStylePx(selectDiv, HEIGHT, select[HEIGHT] = 0); + setStylePx(selectDiv, WIDTH, select[WIDTH] = 0); + } + } + } + + cursor.idx = idx; + cursor.left = mouseLeft1; + cursor.top = mouseTop1; + drag._x = dragX; + drag._y = dragY; + + // if ts is present, means we're implicitly syncing own cursor as a result of debounced rAF + if (ts != null) { + // this is not technically a "mousemove" event, since it's debounced, rename to setCursor? + // since this is internal, we can tweak it later + sync.pub(mousemove, self, mouseLeft1, mouseTop1, plotWidCss, plotHgtCss, idx); + + if (cursorFocus) { + setSeries(closestDist <= focus.prox ? closestSeries : null, {focus: true}, syncOpts.setSeries); + } + } + + ready && fire("setCursor"); + } + + var rect = null; + + function syncRect() { + rect = over.getBoundingClientRect(); + } + + function mouseMove(e, src, _x, _y, _w, _h, _i) { + if (cursor._lock) + { return; } + + cacheMouse(e, src, _x, _y, _w, _h, _i, false, e != null); + + if (e != null) { + if (cursorRaf == 0) + { cursorRaf = rAF(updateCursor); } + } + else + { updateCursor(null, src); } + } + + function cacheMouse(e, src, _x, _y, _w, _h, _i, initial, snap) { + var assign; + + if (e != null) { + _x = e.clientX - rect.left; + _y = e.clientY - rect.top; + } + else { + if (_x < 0 || _y < 0) { + mouseLeft1 = -10; + mouseTop1 = -10; + return; + } + + var ref = syncOpts.scales; + var xKey = ref[0]; + var yKey = ref[1]; + + if (xKey != null) + { _x = getXPos(src.posToVal(_x, xKey), scales[xKey], plotWidCss, 0); } + else + { _x = plotWidCss * (_x/_w); } + + if (yKey != null) + { _y = getYPos(src.posToVal(_y, yKey), scales[yKey], plotHgtCss, 0); } + else + { _y = plotHgtCss * (_y/_h); } + } + + if (snap) { + if (_x <= 1 || _x >= plotWidCss - 1) + { _x = incrRound(_x, plotWidCss); } + + if (_y <= 1 || _y >= plotHgtCss - 1) + { _y = incrRound(_y, plotHgtCss); } + } + + if (initial) { + rawMouseLeft0 = _x; + rawMouseTop0 = _y; + + (assign = cursor.move(self, _x, _y), mouseLeft0 = assign[0], mouseTop0 = assign[1]); + } + else { + mouseLeft1 = _x; + mouseTop1 = _y; + } + } + + function hideSelect() { + setSelect({ + width: 0, + height: 0, + }, false); + } + + function mouseDown(e, src, _x, _y, _w, _h, _i) { + dragging = true; + dragX = dragY = drag._x = drag._y = false; + + cacheMouse(e, src, _x, _y, _w, _h, _i, true, false); + + if (e != null) { + onMouse(mouseup, doc, mouseUp); + sync.pub(mousedown, self, mouseLeft0, mouseTop0, plotWidCss, plotHgtCss, null); + } + } + + function mouseUp(e, src, _x, _y, _w, _h, _i) { + dragging = drag._x = drag._y = false; + + cacheMouse(e, src, _x, _y, _w, _h, _i, false, true); + + var hasSelect = select[WIDTH] > 0 || select[HEIGHT] > 0; + + hasSelect && setSelect(select); + + if (drag.setScale && hasSelect) { + // if (syncKey != null) { + // dragX = drag.x; + // dragY = drag.y; + // } + + if (dragX) { + _setScale(xScaleKey, + scaleValueAtPos(select[LEFT], xScaleKey), + scaleValueAtPos(select[LEFT] + select[WIDTH], xScaleKey) + ); + } + + if (dragY) { + for (var k in scales) { + var sc = scales[k]; + + if (k != xScaleKey && sc.from == null && sc.min != inf) { + _setScale(k, + scaleValueAtPos(select[TOP] + select[HEIGHT], k), + scaleValueAtPos(select[TOP], k) + ); + } + } + } + + hideSelect(); + } + else if (cursor.lock) { + cursor._lock = !cursor._lock; + + if (!cursor._lock) + { updateCursor(); } + } + + if (e != null) { + offMouse(mouseup, doc); + sync.pub(mouseup, self, mouseLeft1, mouseTop1, plotWidCss, plotHgtCss, null); + } + } + + function mouseLeave(e, src, _x, _y, _w, _h, _i) { + if (!cursor._lock) { + var _dragging = dragging; + + if (dragging) { + // handle case when mousemove aren't fired all the way to edges by browser + var snapX = true; + var snapY = true; + var snapProx = 10; + + if (dragX && dragY) { + // maybe omni corner snap + snapX = mouseLeft1 <= snapProx || mouseLeft1 >= plotWidCss - snapProx; + snapY = mouseTop1 <= snapProx || mouseTop1 >= plotHgtCss - snapProx; + } + + if (dragX && snapX) { + var dLft = mouseLeft1; + var dRgt = plotWidCss - mouseLeft1; + + var xMin = min(dLft, dRgt); + + if (xMin == dLft) + { mouseLeft1 = 0; } + if (xMin == dRgt) + { mouseLeft1 = plotWidCss; } + } + + if (dragY && snapY) { + var dTop = mouseTop1; + var dBtm = plotHgtCss - mouseTop1; + + var yMin = min(dTop, dBtm); + + if (yMin == dTop) + { mouseTop1 = 0; } + if (yMin == dBtm) + { mouseTop1 = plotHgtCss; } + } + + updateCursor(1); + + dragging = false; + } + + mouseLeft1 = -10; + mouseTop1 = -10; + + // passing a non-null timestamp to force sync/mousemove event + updateCursor(1); + + if (_dragging) + { dragging = _dragging; } + } + } + + function dblClick(e, src, _x, _y, _w, _h, _i) { + autoScaleX(); + + hideSelect(); + + if (e != null) + { sync.pub(dblclick, self, mouseLeft1, mouseTop1, plotWidCss, plotHgtCss, null); } + } + + // internal pub/sub + var events = {}; + + events[mousedown] = mouseDown; + events[mousemove] = mouseMove; + events[mouseup] = mouseUp; + events[dblclick] = dblClick; + events["setSeries"] = function (e, src, idx, opts) { + setSeries(idx, opts); + }; + + var deb; + + if ( cursor.show) { + onMouse(mousedown, over, mouseDown); + onMouse(mousemove, over, mouseMove); + onMouse(mouseenter, over, syncRect); + // this has to be rAF'd so it always fires after the last queued/rAF'd updateCursor + onMouse(mouseleave, over, function (e) { rAF(mouseLeave); }); + + onMouse(dblclick, over, dblClick); + + deb = debounce(syncRect, 100); + + on(resize, win, deb); + on(scroll, win, deb); + + self.syncRect = syncRect; + } + + // external on/off + var hooks = self.hooks = opts.hooks || {}; + + function fire(evName, a1, a2) { + if (evName in hooks) { + hooks[evName].forEach(function (fn) { + fn.call(null, self, a1, a2); + }); + } + } + + (opts.plugins || []).forEach(function (p) { + for (var evName in p.hooks) + { hooks[evName] = (hooks[evName] || []).concat(p.hooks[evName]); } + }); + + var syncOpts = assign({ + key: null, + setSeries: false, + scales: [xScaleKey, null] + }, cursor.sync); + + var syncKey = syncOpts.key; + + var sync = (syncKey != null ? (syncs[syncKey] = syncs[syncKey] || _sync()) : _sync()); + + sync.sub(self); + + function pub(type, src, x, y, w, h, i) { + events[type](null, src, x, y, w, h, i); + } + + (self.pub = pub); + + function destroy() { + sync.unsub(self); + off(resize, win, deb); + off(scroll, win, deb); + root.remove(); + fire("destroy"); + } + + self.destroy = destroy; + + function _init() { + fire("init", opts, data); + + setData(data || opts.data, false); + + if (pendScales[xScaleKey]) + { setScale(xScaleKey, pendScales[xScaleKey]); } + else + { autoScaleX(); } + + _setSize(opts[WIDTH], opts[HEIGHT]); + + setSelect(select, false); + } + + if (then) { + if (then instanceof HTMLElement) { + then.appendChild(root); + _init(); + } + else + { then(self, _init); } + } + else + { _init(); } + + return self; + } + + uPlot.assign = assign; + uPlot.fmtNum = fmtNum; + uPlot.rangeNum = rangeNum; + uPlot.rangeLog = rangeLog; + + { + uPlot.fmtDate = fmtDate; + uPlot.tzDate = tzDate; + } + + return uPlot; + +}()); 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