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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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'use strict';
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var __extends = (this && this.__extends) || (function () {
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var extendStatics = function (d, b) {
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extendStatics = Object.setPrototypeOf ||
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({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
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function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
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return extendStatics(d, b);
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};
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return function (d, b) {
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if (typeof b !== "function" && b !== null)
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throw new TypeError("Class extends value " + String(b) + " is not a constructor or null");
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extendStatics(d, b);
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function __() { this.constructor = d; }
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d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
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};
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})();
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import SeriesRegistry from '../../../Core/Series/SeriesRegistry.js';
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var SMAIndicator = SeriesRegistry.seriesTypes.sma;
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import U from '../../../Core/Utilities.js';
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var isNumber = U.isNumber, error = U.error, extend = U.extend, merge = U.merge;
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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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var OBVIndicator = /** @class */ (function (_super) {
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__extends(OBVIndicator, _super);
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function OBVIndicator() {
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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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var _this = _super !== null && _super.apply(this, arguments) || this;
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/* *
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*
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* Properties
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*
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* */
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_this.data = void 0;
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_this.points = void 0;
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_this.options = void 0;
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return _this;
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}
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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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OBVIndicator.prototype.getValues = function (series, params) {
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var volumeSeries = series.chart.get(params.volumeSeriesID), xVal = series.xData, yVal = series.yData, OBV = [], xData = [], yData = [], hasOHLC = !isNumber(yVal[0]);
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var 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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* 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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* indiator 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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return OBVIndicator;
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}(SMAIndicator));
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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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export default OBVIndicator;
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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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