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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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import SeriesRegistry from '../../../Core/Series/SeriesRegistry.js';
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var Series = SeriesRegistry.series, ohlcProto = SeriesRegistry.seriesTypes.ohlc.prototype;
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import U from '../../../Core/Utilities.js';
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var addEvent = U.addEvent, extend = U.extend;
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@@ -0,0 +1,376 @@
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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 Chart from '../../../Core/Chart/Chart.js';
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import SeriesRegistry from '../../../Core/Series/SeriesRegistry.js';
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var LineSeries = SeriesRegistry.seriesTypes.line;
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import U from '../../../Core/Utilities.js';
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var addEvent = U.addEvent, error = U.error, extend = U.extend, isArray = U.isArray, merge = U.merge, pick = U.pick, splat = U.splat;
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import './SMAComposition.js';
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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 SMA series type.
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*
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* @private
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*/
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var SMAIndicator = /** @class */ (function (_super) {
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__extends(SMAIndicator, _super);
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function SMAIndicator() {
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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.dataEventsToUnbind = void 0;
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_this.linkedParent = void 0;
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_this.options = void 0;
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_this.points = void 0;
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return _this;
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/* eslint-enable valid-jsdoc */
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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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/* eslint-disable valid-jsdoc */
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/**
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* @private
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*/
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SMAIndicator.prototype.destroy = function () {
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this.dataEventsToUnbind.forEach(function (unbinder) {
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unbinder();
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});
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_super.prototype.destroy.apply(this, arguments);
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};
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/**
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* @private
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*/
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SMAIndicator.prototype.getName = function () {
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var name = this.name, params = [];
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if (!name) {
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(this.nameComponents || []).forEach(function (component, index) {
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params.push(this.options.params[component] +
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pick(this.nameSuffixes[index], ''));
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}, this);
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name = (this.nameBase || this.type.toUpperCase()) +
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(this.nameComponents ? ' (' + params.join(', ') + ')' : '');
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}
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return name;
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};
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/**
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* @private
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*/
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SMAIndicator.prototype.getValues = function (series, params) {
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var period = params.period, xVal = series.xData, yVal = series.yData, yValLen = yVal.length, range = 0, sum = 0, SMA = [], xData = [], yData = [], index = -1, i, SMAPoint;
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if (xVal.length < period) {
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return;
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}
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// Switch index for OHLC / Candlestick / Arearange
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if (isArray(yVal[0])) {
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index = params.index ? params.index : 0;
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}
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// Accumulate first N-points
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while (range < period - 1) {
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sum += index < 0 ? yVal[range] : yVal[range][index];
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range++;
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}
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// Calculate value one-by-one for each period in visible data
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for (i = range; i < yValLen; i++) {
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sum += index < 0 ? yVal[i] : yVal[i][index];
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SMAPoint = [xVal[i], sum / period];
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SMA.push(SMAPoint);
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xData.push(SMAPoint[0]);
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yData.push(SMAPoint[1]);
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sum -= (index < 0 ?
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yVal[i - range] :
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yVal[i - range][index]);
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}
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return {
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values: SMA,
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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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* @private
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*/
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SMAIndicator.prototype.init = function (chart, options) {
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var indicator = this;
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_super.prototype.init.call(indicator, chart, options);
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// Only after series are linked indicator can be processed.
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var linkedSeriesUnbiner = addEvent(Chart, 'afterLinkSeries', function () {
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var hasEvents = !!indicator.dataEventsToUnbind.length;
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if (indicator.linkedParent) {
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if (!hasEvents) {
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// No matter which indicator, always recalculate after
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// updating the data.
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indicator.dataEventsToUnbind.push(addEvent(indicator.linkedParent, 'updatedData', function () {
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indicator.recalculateValues();
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}));
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// Some indicators (like VBP) requires an additional
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// event (afterSetExtremes) to properly show the data.
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if (indicator.calculateOn.xAxis) {
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indicator.dataEventsToUnbind.push(addEvent(indicator.linkedParent.xAxis, indicator.calculateOn.xAxis, function () {
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indicator.recalculateValues();
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}));
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}
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}
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// Most indicators are being calculated on chart's init.
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if (indicator.calculateOn.chart === 'init') {
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if (!indicator.processedYData) {
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indicator.recalculateValues();
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}
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}
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else if (!hasEvents) {
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// Some indicators (like VBP) has to recalculate their
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// values after other chart's events (render).
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var unbinder_1 = addEvent(indicator.chart, indicator.calculateOn.chart, function () {
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indicator.recalculateValues();
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// Call this just once.
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unbinder_1();
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});
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}
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}
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else {
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return error('Series ' +
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indicator.options.linkedTo +
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' not found! Check `linkedTo`.', false, chart);
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}
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}, {
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order: 0
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});
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// Make sure we find series which is a base for an indicator
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// chart.linkSeries();
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indicator.dataEventsToUnbind = [];
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indicator.eventsToUnbind.push(linkedSeriesUnbiner);
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};
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/**
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* @private
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*/
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SMAIndicator.prototype.recalculateValues = function () {
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var indicator = this, oldData = indicator.points || [], oldDataLength = (indicator.xData || []).length, emptySet = {
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values: [],
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xData: [],
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yData: []
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}, processedData, croppedDataValues = [], overwriteData = true, oldFirstPointIndex, oldLastPointIndex, croppedData, min, max, i;
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// Updating an indicator with redraw=false may destroy data.
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// If there will be a following update for the parent series,
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// we will try to access Series object without any properties
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// (except for prototyped ones). This is what happens
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// for example when using Axis.setDataGrouping(). See #16670
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processedData = indicator.linkedParent.options ?
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(indicator.getValues(indicator.linkedParent, indicator.options.params) || emptySet) : emptySet;
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// We need to update points to reflect changes in all,
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// x and y's, values. However, do it only for non-grouped
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// data - grouping does it for us (#8572)
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if (oldDataLength &&
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!indicator.hasGroupedData &&
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indicator.visible &&
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indicator.points) {
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// When data is cropped update only avaliable points (#9493)
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if (indicator.cropped) {
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if (indicator.xAxis) {
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min = indicator.xAxis.min;
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max = indicator.xAxis.max;
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}
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croppedData = indicator.cropData(processedData.xData, processedData.yData, min, max);
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for (i = 0; i < croppedData.xData.length; i++) {
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// (#10774)
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croppedDataValues.push([
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croppedData.xData[i]
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].concat(splat(croppedData.yData[i])));
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}
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oldFirstPointIndex = processedData.xData.indexOf(indicator.xData[0]);
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oldLastPointIndex = processedData.xData.indexOf(indicator.xData[indicator.xData.length - 1]);
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// Check if indicator points should be shifted (#8572)
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if (oldFirstPointIndex === -1 &&
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oldLastPointIndex === processedData.xData.length - 2) {
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if (croppedDataValues[0][0] === oldData[0].x) {
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croppedDataValues.shift();
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}
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}
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indicator.updateData(croppedDataValues);
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// Omit addPoint() and removePoint() cases
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}
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else if (processedData.xData.length !== oldDataLength - 1 &&
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processedData.xData.length !== oldDataLength + 1) {
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overwriteData = false;
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indicator.updateData(processedData.values);
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}
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}
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if (overwriteData) {
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indicator.xData = processedData.xData;
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indicator.yData = processedData.yData;
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indicator.options.data = processedData.values;
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}
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// Removal of processedXData property is required because on
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// first translate processedXData array is empty
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if (indicator.calculateOn.xAxis && indicator.processedXData) {
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delete indicator.processedXData;
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indicator.isDirty = true;
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indicator.redraw();
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}
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indicator.isDirtyData = false;
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};
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/**
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* @private
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*/
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SMAIndicator.prototype.processData = function () {
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var series = this, compareToMain = series.options.compareToMain, linkedParent = series.linkedParent;
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_super.prototype.processData.apply(series, arguments);
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if (series.dataModify &&
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linkedParent &&
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linkedParent.dataModify &&
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linkedParent.dataModify.compareValue &&
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compareToMain) {
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series.dataModify.compareValue =
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linkedParent.dataModify.compareValue;
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}
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return;
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};
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/**
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* The parameter allows setting line series type and use OHLC indicators.
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* Data in OHLC format is required.
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*
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* @sample {highstock} stock/indicators/use-ohlc-data
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* Use OHLC data format to plot line chart
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*
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* @type {boolean}
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* @product highstock
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* @apioption plotOptions.line.useOhlcData
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*/
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/**
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* Simple moving average indicator (SMA). This series requires `linkedTo`
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* option to be set.
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*
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* @sample stock/indicators/sma
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* Simple moving average indicator
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*
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* @extends plotOptions.line
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* @since 6.0.0
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* @excluding allAreas, colorAxis, dragDrop, joinBy, keys,
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* navigatorOptions, pointInterval, pointIntervalUnit,
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* pointPlacement, pointRange, pointStart, showInNavigator,
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* stacking, useOhlcData
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* @product highstock
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* @requires stock/indicators/indicators
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* @optionparent plotOptions.sma
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*/
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SMAIndicator.defaultOptions = merge(LineSeries.defaultOptions, {
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/**
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* The name of the series as shown in the legend, tooltip etc. If not
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* set, it will be based on a technical indicator type and default
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* params.
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*
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* @type {string}
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*/
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name: void 0,
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tooltip: {
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/**
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* Number of decimals in indicator series.
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*/
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valueDecimals: 4
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},
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/**
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* The main series ID that indicator will be based on. Required for this
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* indicator.
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*
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* @type {string}
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*/
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linkedTo: void 0,
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/**
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* Whether to compare indicator to the main series values
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* or indicator values.
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*
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* @sample {highstock} stock/plotoptions/series-comparetomain/
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* Difference between comparing SMA values to the main series
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* and its own values.
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*
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* @type {boolean}
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*/
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compareToMain: false,
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/**
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* Paramters used in calculation of regression series' points.
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*/
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params: {
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/**
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* The point index which indicator calculations will base. For
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* example using OHLC data, index=2 means the indicator will be
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* calculated using Low values.
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*/
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index: 3,
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/**
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* The base period for indicator calculations. This is the number of
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* data points which are taken into account for the indicator
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* calculations.
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*/
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period: 14
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}
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});
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return SMAIndicator;
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}(LineSeries));
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extend(SMAIndicator.prototype, {
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calculateOn: {
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chart: 'init'
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},
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hasDerivedData: true,
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nameComponents: ['period'],
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nameSuffixes: [],
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useCommonDataGrouping: true
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});
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SeriesRegistry.registerSeriesType('sma', SMAIndicator);
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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 SMAIndicator;
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/* *
|
||||
*
|
||||
* API Options
|
||||
*
|
||||
* */
|
||||
/**
|
||||
* A `SMA` series. If the [type](#series.sma.type) option is not specified, it
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* is inherited from [chart.type](#chart.type).
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*
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* @extends series,plotOptions.sma
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* @since 6.0.0
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* @product highstock
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* @excluding dataParser, dataURL, useOhlcData
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* @requires stock/indicators/indicators
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* @apioption series.sma
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*/
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(''); // adds doclet above to the transpiled file
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Reference in New Issue
Block a user