196 lines
6.9 KiB
JavaScript
196 lines
6.9 KiB
JavaScript
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/**
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* @license Highstock JS v11.4.1 (2024-04-04)
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*
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* Indicator series type for Highcharts Stock
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*
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* (c) 2010-2024 Karol Kolodziej
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*
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* License: www.highcharts.com/license
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*/
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(function (factory) {
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if (typeof module === 'object' && module.exports) {
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factory['default'] = factory;
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module.exports = factory;
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} else if (typeof define === 'function' && define.amd) {
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define('highcharts/indicators/obv', ['highcharts', 'highcharts/modules/stock'], function (Highcharts) {
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factory(Highcharts);
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factory.Highcharts = Highcharts;
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return factory;
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});
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} else {
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factory(typeof Highcharts !== 'undefined' ? Highcharts : undefined);
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}
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}(function (Highcharts) {
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'use strict';
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var _modules = Highcharts ? Highcharts._modules : {};
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function _registerModule(obj, path, args, fn) {
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if (!obj.hasOwnProperty(path)) {
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obj[path] = fn.apply(null, args);
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if (typeof CustomEvent === 'function') {
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window.dispatchEvent(new CustomEvent(
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'HighchartsModuleLoaded',
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{ detail: { path: path, module: obj[path] } }
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));
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}
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}
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}
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_registerModule(_modules, 'Stock/Indicators/OBV/OBVIndicator.js', [_modules['Core/Series/SeriesRegistry.js'], _modules['Core/Utilities.js']], function (SeriesRegistry, U) {
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/* *
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*
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* License: www.highcharts.com/license
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*
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* !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
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*
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* */
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const { sma: SMAIndicator } = SeriesRegistry.seriesTypes;
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const { isNumber, error, extend, merge } = U;
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/* *
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*
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* Class
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*
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* */
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/**
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* The OBV series type.
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*
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* @private
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* @class
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* @name Highcharts.seriesTypes.obv
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*
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* @augments Highcharts.Series
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*/
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class OBVIndicator extends SMAIndicator {
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/* *
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*
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* Functions
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*
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* */
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getValues(series, params) {
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const volumeSeries = series.chart.get(params.volumeSeriesID), xVal = series.xData, yVal = series.yData, OBV = [], xData = [], yData = [], hasOHLC = !isNumber(yVal[0]);
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let OBVPoint = [], i = 1, previousOBV = 0, curentOBV = 0, previousClose = 0, curentClose = 0, volume;
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// Checks if volume series exists.
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if (volumeSeries) {
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volume = volumeSeries.yData;
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// Add first point and get close value.
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OBVPoint = [xVal[0], previousOBV];
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previousClose = hasOHLC ?
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yVal[0][3] : yVal[0];
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OBV.push(OBVPoint);
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xData.push(xVal[0]);
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yData.push(OBVPoint[1]);
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for (i; i < yVal.length; i++) {
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curentClose = hasOHLC ?
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yVal[i][3] : yVal[i];
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if (curentClose > previousClose) { // Up
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curentOBV = previousOBV + volume[i];
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}
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else if (curentClose === previousClose) { // Constant
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curentOBV = previousOBV;
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}
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else { // Down
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curentOBV = previousOBV - volume[i];
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}
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// Add point.
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OBVPoint = [xVal[i], curentOBV];
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// Assign current as previous for next iteration.
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previousOBV = curentOBV;
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previousClose = curentClose;
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OBV.push(OBVPoint);
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xData.push(xVal[i]);
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yData.push(OBVPoint[1]);
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}
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}
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else {
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error('Series ' +
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params.volumeSeriesID +
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' not found! Check `volumeSeriesID`.', true, series.chart);
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return;
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}
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return {
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values: OBV,
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xData: xData,
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yData: yData
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};
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}
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}
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/* *
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*
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* Static Properties
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*
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* */
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/**
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* On-Balance Volume (OBV) technical indicator. This series
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* requires the `linkedTo` option to be set and should be loaded after
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* the `stock/indicators/indicators.js` file. Through the `volumeSeriesID`
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* there also should be linked the volume series.
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*
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* @sample stock/indicators/obv
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* OBV indicator
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*
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* @extends plotOptions.sma
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* @since 9.1.0
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* @product highstock
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* @requires stock/indicators/indicators
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* @requires stock/indicators/obv
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* @excluding allAreas, colorAxis, joinBy, keys, navigatorOptions,
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* pointInterval, pointIntervalUnit, pointPlacement,
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* pointRange, pointStart, showInNavigator, stacking
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* @optionparent plotOptions.obv
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*/
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OBVIndicator.defaultOptions = merge(SMAIndicator.defaultOptions, {
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marker: {
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enabled: false
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},
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/**
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* @excluding index, period
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*/
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params: {
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// Index and period are unchangeable, do not inherit (#15362)
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index: void 0,
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period: void 0,
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/**
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* The id of another series to use its data as volume data for the
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* indicator calculation.
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*/
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volumeSeriesID: 'volume'
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},
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tooltip: {
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valueDecimals: 0
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}
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});
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extend(OBVIndicator.prototype, {
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nameComponents: void 0
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});
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SeriesRegistry.registerSeriesType('obv', OBVIndicator);
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/* *
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*
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* Default Export
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*
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* */
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/* *
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*
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* API Options
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*
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* */
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/**
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* A `OBV` series. If the [type](#series.obv.type) option is not
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* specified, it is inherited from [chart.type](#chart.type).
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*
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* @extends series,plotOptions.obv
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* @since 9.1.0
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* @product highstock
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* @excluding dataParser, dataURL
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* @requires stock/indicators/indicators
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* @requires stock/indicators/obv
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* @apioption series.obv
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*/
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''; // To include the above in the js output
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return OBVIndicator;
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});
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_registerModule(_modules, 'masters/indicators/obv.src.js', [_modules['Core/Globals.js']], function (Highcharts) {
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return Highcharts;
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});
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}));
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