dygraphs
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dygraphs is a fast, flexible open source JavaScript charting library.
110 lines (101 loc) • 12.6 kB
JavaScript
/**
* @license
* Copyright 2013 David Eberlein (david.eberlein@ch.sauter-bc.com)
* MIT-licenced: https://opensource.org/licenses/MIT
*/
/**
* @fileoverview DataHandler base implementation for the "bar"
* data formats. This implementation must be extended and the
* extractSeries and rollingAverage must be implemented.
* @author David Eberlein (david.eberlein@ch.sauter-bc.com)
*/
/*global Dygraph:false */
/*global DygraphLayout:false */
;
Object.defineProperty(exports, "__esModule", {
value: true
});
exports["default"] = void 0;
var _datahandler = _interopRequireDefault(require("./datahandler"));
var _dygraphLayout = _interopRequireDefault(require("../dygraph-layout"));
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
/**
* @constructor
* @extends {Dygraph.DataHandler}
*/
var BarsHandler = function BarsHandler() {
_datahandler["default"].call(this);
};
BarsHandler.prototype = new _datahandler["default"]();
// TODO(danvk): figure out why the jsdoc has to be copy/pasted from superclass.
// (I get closure compiler errors if this isn't here.)
/**
* @override
* @param {!Array.<Array>} rawData The raw data passed into dygraphs where
* rawData[i] = [x,ySeries1,...,ySeriesN].
* @param {!number} seriesIndex Index of the series to extract. All other
* series should be ignored.
* @param {!DygraphOptions} options Dygraph options.
* @return {Array.<[!number,?number,?]>} The series in the unified data format
* where series[i] = [x,y,{extras}].
*/
BarsHandler.prototype.extractSeries = function (rawData, seriesIndex, options) {
// Not implemented here must be extended
};
/**
* @override
* @param {!Array.<[!number,?number,?]>} series The series in the unified
* data format where series[i] = [x,y,{extras}].
* @param {!number} rollPeriod The number of points over which to average the data
* @param {!DygraphOptions} options The dygraph options.
* @param {!number} seriesIndex Index of the series this was extracted from.
* TODO(danvk): be more specific than "Array" here.
* @return {!Array.<[!number,?number,?]>} the rolled series.
*/
BarsHandler.prototype.rollingAverage = function (series, rollPeriod, options, seriesIndex) {
// Not implemented here, must be extended.
};
/** @inheritDoc */
BarsHandler.prototype.onPointsCreated_ = function (series, points) {
for (var i = 0; i < series.length; ++i) {
var item = series[i];
var point = points[i];
point.y_top = NaN;
point.y_bottom = NaN;
point.yval_minus = _datahandler["default"].parseFloat(item[2][0]);
point.yval_plus = _datahandler["default"].parseFloat(item[2][1]);
}
};
/** @inheritDoc */
BarsHandler.prototype.getExtremeYValues = function (series, dateWindow, stepPlot) {
var minY = null,
maxY = null,
y;
var firstIdx = 0;
var lastIdx = series.length - 1;
for (var j = firstIdx; j <= lastIdx; j++) {
y = series[j][1];
if (y === null || isNaN(y)) continue;
var low = series[j][2][0];
var high = series[j][2][1];
if (low > y) low = y; // this can happen with custom bars,
if (high < y) high = y; // e.g. in tests/custom-bars.html
if (maxY === null || high > maxY) maxY = high;
if (minY === null || low < minY) minY = low;
}
return [minY, maxY];
};
/** @inheritDoc */
BarsHandler.prototype.onLineEvaluated = function (points, axis, logscale) {
var point;
for (var j = 0; j < points.length; j++) {
// Copy over the error terms
point = points[j];
point.y_top = _dygraphLayout["default"].calcYNormal_(axis, point.yval_minus, logscale);
point.y_bottom = _dygraphLayout["default"].calcYNormal_(axis, point.yval_plus, logscale);
}
};
var _default = BarsHandler;
exports["default"] = _default;
module.exports = exports.default;
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This implementation must be extended and the\n * extractSeries and rollingAverage must be implemented.\n * @author David Eberlein (david.eberlein@ch.sauter-bc.com)\n */\n\n/*global Dygraph:false */\n/*global DygraphLayout:false */\n\"use strict\";\n\nimport DygraphDataHandler from './datahandler';\nimport DygraphLayout from '../dygraph-layout';\n\n/**\n * @constructor\n * @extends {Dygraph.DataHandler}\n */\nvar BarsHandler = function() {\n  DygraphDataHandler.call(this);\n};\nBarsHandler.prototype = new DygraphDataHandler();\n\n// TODO(danvk): figure out why the jsdoc has to be copy/pasted from superclass.\n//   (I get closure compiler errors if this isn't here.)\n/**\n * @override\n * @param {!Array.<Array>} rawData The raw data passed into dygraphs where\n *     rawData[i] = [x,ySeries1,...,ySeriesN].\n * @param {!number} seriesIndex Index of the series to extract. All other\n *     series should be ignored.\n * @param {!DygraphOptions} options Dygraph options.\n * @return {Array.<[!number,?number,?]>} The series in the unified data format\n *     where series[i] = [x,y,{extras}].\n */\nBarsHandler.prototype.extractSeries = function(rawData, seriesIndex, options) {\n  // Not implemented here must be extended\n};\n\n/**\n * @override\n * @param {!Array.<[!number,?number,?]>} series The series in the unified\n *          data format where series[i] = [x,y,{extras}].\n * @param {!number} rollPeriod The number of points over which to average the data\n * @param {!DygraphOptions} options The dygraph options.\n * @param {!number} seriesIndex Index of the series this was extracted from.\n * TODO(danvk): be more specific than \"Array\" here.\n * @return {!Array.<[!number,?number,?]>} the rolled series.\n */\nBarsHandler.prototype.rollingAverage =\n    function(series, rollPeriod, options, seriesIndex) {\n  // Not implemented here, must be extended.\n};\n\n/** @inheritDoc */\nBarsHandler.prototype.onPointsCreated_ = function(series, points) {\n  for (var i = 0; i < series.length; ++i) {\n    var item = series[i];\n    var point = points[i];\n    point.y_top = NaN;\n    point.y_bottom = NaN;\n    point.yval_minus = DygraphDataHandler.parseFloat(item[2][0]);\n    point.yval_plus = DygraphDataHandler.parseFloat(item[2][1]);\n  }\n};\n\n/** @inheritDoc */\nBarsHandler.prototype.getExtremeYValues = function(series, dateWindow, stepPlot) {\n  var minY = null, maxY = null, y;\n\n  var firstIdx = 0;\n  var lastIdx = series.length - 1;\n\n  for ( var j = firstIdx; j <= lastIdx; j++) {\n    y = series[j][1];\n    if (y === null || isNaN(y)) continue;\n\n    var low = series[j][2][0];\n    var high = series[j][2][1];\n\n    if (low > y) low = y; // this can happen with custom bars,\n    if (high < y) high = y; // e.g. in tests/custom-bars.html\n\n    if (maxY === null || high > maxY) maxY = high;\n    if (minY === null || low < minY) minY = low;\n  }\n\n  return [ minY, maxY ];\n};\n\n/** @inheritDoc */\nBarsHandler.prototype.onLineEvaluated = function(points, axis, logscale) {\n  var point;\n  for (var j = 0; j < points.length; j++) {\n    // Copy over the error terms\n    point = points[j];\n    point.y_top = DygraphLayout.calcYNormal_(axis, point.yval_minus, logscale);\n    point.y_bottom = DygraphLayout.calcYNormal_(axis, point.yval_plus, logscale);\n  }\n};\n\nexport default BarsHandler;\n"],"mappings":"AAAA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA,YAAY;;AAAC;EAAA;AAAA;AAAA;AAEb;AACA;AAA8C;AAE9C;AACA;AACA;AACA;AACA,IAAIA,WAAW,GAAG,SAAdA,WAAW,GAAc;EAC3BC,uBAAkB,CAACC,IAAI,CAAC,IAAI,CAAC;AAC/B,CAAC;AACDF,WAAW,CAACG,SAAS,GAAG,IAAIF,uBAAkB,EAAE;;AAEhD;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACAD,WAAW,CAACG,SAAS,CAACC,aAAa,GAAG,UAASC,OAAO,EAAEC,WAAW,EAAEC,OAAO,EAAE;EAC5E;AAAA,CACD;;AAED;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACAP,WAAW,CAACG,SAAS,CAACK,cAAc,GAChC,UAASC,MAAM,EAAEC,UAAU,EAAEH,OAAO,EAAED,WAAW,EAAE;EACrD;AAAA,CACD;;AAED;AACAN,WAAW,CAACG,SAAS,CAACQ,gBAAgB,GAAG,UAASF,MAAM,EAAEG,MAAM,EAAE;EAChE,KAAK,IAAIC,CAAC,GAAG,CAAC,EAAEA,CAAC,GAAGJ,MAAM,CAACK,MAAM,EAAE,EAAED,CAAC,EAAE;IACtC,IAAIE,IAAI,GAAGN,MAAM,CAACI,CAAC,CAAC;IACpB,IAAIG,KAAK,GAAGJ,MAAM,CAACC,CAAC,CAAC;IACrBG,KAAK,CAACC,KAAK,GAAGC,GAAG;IACjBF,KAAK,CAACG,QAAQ,GAAGD,GAAG;IACpBF,KAAK,CAACI,UAAU,GAAGnB,uBAAkB,CAACoB,UAAU,CAACN,IAAI,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC;IAC5DC,KAAK,CAACM,SAAS,GAAGrB,uBAAkB,CAACoB,UAAU,CAACN,IAAI,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC;EAC7D;AACF,CAAC;;AAED;AACAf,WAAW,CAACG,SAAS,CAACoB,iBAAiB,GAAG,UAASd,MAAM,EAAEe,UAAU,EAAEC,QAAQ,EAAE;EAC/E,IAAIC,IAAI,GAAG,IAAI;IAAEC,IAAI,GAAG,IAAI;IAAEC,CAAC;EAE/B,IAAIC,QAAQ,GAAG,CAAC;EAChB,IAAIC,OAAO,GAAGrB,MAAM,CAACK,MAAM,GAAG,CAAC;EAE/B,KAAM,IAAIiB,CAAC,GAAGF,QAAQ,EAAEE,CAAC,IAAID,OAAO,EAAEC,CAAC,EAAE,EAAE;IACzCH,CAAC,GAAGnB,MAAM,CAACsB,CAAC,CAAC,CAAC,CAAC,CAAC;IAChB,IAAIH,CAAC,KAAK,IAAI,IAAII,KAAK,CAACJ,CAAC,CAAC,EAAE;IAE5B,IAAIK,GAAG,GAAGxB,MAAM,CAACsB,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC;IACzB,IAAIG,IAAI,GAAGzB,MAAM,CAACsB,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC;IAE1B,IAAIE,GAAG,GAAGL,CAAC,EAAEK,GAAG,GAAGL,CAAC,CAAC,CAAC;IACtB,IAAIM,IAAI,GAAGN,CAAC,EAAEM,IAAI,GAAGN,CAAC,CAAC,CAAC;;IAExB,IAAID,IAAI,KAAK,IAAI,IAAIO,IAAI,GAAGP,IAAI,EAAEA,IAAI,GAAGO,IAAI;IAC7C,IAAIR,IAAI,KAAK,IAAI,IAAIO,GAAG,GAAGP,IAAI,EAAEA,IAAI,GAAGO,GAAG;EAC7C;EAEA,OAAO,CAAEP,IAAI,EAAEC,IAAI,CAAE;AACvB,CAAC;;AAED;AACA3B,WAAW,CAACG,SAAS,CAACgC,eAAe,GAAG,UAASvB,MAAM,EAAEwB,IAAI,EAAEC,QAAQ,EAAE;EACvE,IAAIrB,KAAK;EACT,KAAK,IAAIe,CAAC,GAAG,CAAC,EAAEA,CAAC,GAAGnB,MAAM,CAACE,MAAM,EAAEiB,CAAC,EAAE,EAAE;IACtC;IACAf,KAAK,GAAGJ,MAAM,CAACmB,CAAC,CAAC;IACjBf,KAAK,CAACC,KAAK,GAAGqB,yBAAa,CAACC,YAAY,CAACH,IAAI,EAAEpB,KAAK,CAACI,UAAU,EAAEiB,QAAQ,CAAC;IAC1ErB,KAAK,CAACG,QAAQ,GAAGmB,yBAAa,CAACC,YAAY,CAACH,IAAI,EAAEpB,KAAK,CAACM,SAAS,EAAEe,QAAQ,CAAC;EAC9E;AACF,CAAC;AAAC,eAEarC,WAAW;AAAA;AAAA"}