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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 PivotPointsPoint from './PivotPointsPoint.js';
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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 merge = U.merge, extend = U.extend, defined = U.defined, isArray = U.isArray;
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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 Pivot Points series type.
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*
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* @private
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* @class
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* @name Highcharts.seriesTypes.pivotpoints
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*
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* @augments Highcharts.Series
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*/
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var PivotPointsIndicator = /** @class */ (function (_super) {
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__extends(PivotPointsIndicator, _super);
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function PivotPointsIndicator() {
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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.options = void 0;
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_this.points = void 0;
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_this.endPoint = void 0;
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_this.plotEndPoint = 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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PivotPointsIndicator.prototype.toYData = function (point) {
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return [point.P]; // The rest should not affect extremes
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};
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PivotPointsIndicator.prototype.translate = function () {
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var indicator = this;
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SeriesRegistry.seriesTypes.sma.prototype.translate.apply(indicator);
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indicator.points.forEach(function (point) {
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indicator.pointArrayMap.forEach(function (value) {
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if (defined(point[value])) {
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point['plot' + value] = (indicator.yAxis.toPixels(point[value], true));
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}
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});
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});
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// Pivot points are rendered as horizontal lines
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// And last point start not from the next one (as it's the last one)
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// But from the approximated last position in a given range
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indicator.plotEndPoint = indicator.xAxis.toPixels(indicator.endPoint, true);
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};
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PivotPointsIndicator.prototype.getGraphPath = function (points) {
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var indicator = this, pointsLength = points.length, allPivotPoints = ([[], [], [], [], [], [], [], [], []]), path = [], endPoint = indicator.plotEndPoint, pointArrayMapLength = indicator.pointArrayMap.length, position, point, i;
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while (pointsLength--) {
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point = points[pointsLength];
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for (i = 0; i < pointArrayMapLength; i++) {
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position = indicator.pointArrayMap[i];
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if (defined(point[position])) {
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allPivotPoints[i].push({
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// Start left:
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plotX: point.plotX,
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plotY: point['plot' + position],
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isNull: false
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}, {
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// Go to right:
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plotX: endPoint,
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plotY: point['plot' + position],
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isNull: false
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}, {
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// And add null points in path to generate breaks:
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plotX: endPoint,
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plotY: null,
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isNull: true
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});
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}
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}
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endPoint = point.plotX;
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}
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allPivotPoints.forEach(function (pivotPoints) {
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path = path.concat(SeriesRegistry.seriesTypes.sma.prototype.getGraphPath.call(indicator, pivotPoints));
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});
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return path;
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};
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// TODO: Rewrite this logic to use multiple datalabels
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PivotPointsIndicator.prototype.drawDataLabels = function () {
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var indicator = this, pointMapping = indicator.pointArrayMap, currentLabel, pointsLength, point, i;
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if (indicator.options.dataLabels.enabled) {
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pointsLength = indicator.points.length;
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// For every Ressitance/Support group we need to render labels.
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// Add one more item, which will just store dataLabels from
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// previous iteration
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pointMapping.concat([false]).forEach(function (position, k) {
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i = pointsLength;
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while (i--) {
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point = indicator.points[i];
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if (!position) {
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// Store S4 dataLabel too:
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point['dataLabel' + pointMapping[k - 1]] =
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point.dataLabel;
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}
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else {
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point.y = point[position];
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point.pivotLine = position;
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point.plotY = point['plot' + position];
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currentLabel = point['dataLabel' + position];
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// Store previous label
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if (k) {
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point['dataLabel' + pointMapping[k - 1]] = point.dataLabel;
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}
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if (!point.dataLabels) {
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point.dataLabels = [];
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}
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point.dataLabels[0] = point.dataLabel =
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currentLabel =
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currentLabel && currentLabel.element ?
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currentLabel :
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null;
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}
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}
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SeriesRegistry.seriesTypes.sma.prototype.drawDataLabels
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.apply(indicator, arguments);
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});
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}
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};
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PivotPointsIndicator.prototype.getValues = function (series, params) {
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var period = params.period, xVal = series.xData, yVal = series.yData, yValLen = yVal ? yVal.length : 0, placement = this[params.algorithm + 'Placement'],
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// 0- from, 1- to, 2- R1, 3- R2, 4- pivot, 5- S1 etc.
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PP = [], endTimestamp, xData = [], yData = [], slicedXLen, slicedX, slicedY, lastPP, pivot, avg, i;
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// Pivot Points requires high, low and close values
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if (xVal.length < period ||
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!isArray(yVal[0]) ||
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yVal[0].length !== 4) {
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return;
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}
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for (i = period + 1; i <= yValLen + period; i += period) {
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slicedX = xVal.slice(i - period - 1, i);
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slicedY = yVal.slice(i - period - 1, i);
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slicedXLen = slicedX.length;
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endTimestamp = slicedX[slicedXLen - 1];
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pivot = this.getPivotAndHLC(slicedY);
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avg = placement(pivot);
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lastPP = PP.push([endTimestamp]
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.concat(avg));
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xData.push(endTimestamp);
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yData.push(PP[lastPP - 1].slice(1));
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}
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// We don't know exact position in ordinal axis
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// So we use simple logic:
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// Get first point in last range, calculate visible average range
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// and multiply by period
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this.endPoint = slicedX[0] + ((endTimestamp - slicedX[0]) /
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slicedXLen) * period;
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return {
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values: PP,
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xData: xData,
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yData: yData
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};
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};
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PivotPointsIndicator.prototype.getPivotAndHLC = function (values) {
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var high = -Infinity, low = Infinity, close = values[values.length - 1][3], pivot;
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values.forEach(function (p) {
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high = Math.max(high, p[1]);
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low = Math.min(low, p[2]);
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});
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pivot = (high + low + close) / 3;
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return [pivot, high, low, close];
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};
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PivotPointsIndicator.prototype.standardPlacement = function (values) {
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var diff = values[1] - values[2], avg = [
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null,
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null,
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values[0] + diff,
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values[0] * 2 - values[2],
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values[0],
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values[0] * 2 - values[1],
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values[0] - diff,
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null,
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null
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];
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return avg;
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};
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PivotPointsIndicator.prototype.camarillaPlacement = function (values) {
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var diff = values[1] - values[2], avg = [
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values[3] + diff * 1.5,
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values[3] + diff * 1.25,
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values[3] + diff * 1.1666,
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values[3] + diff * 1.0833,
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values[0],
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values[3] - diff * 1.0833,
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values[3] - diff * 1.1666,
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values[3] - diff * 1.25,
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values[3] - diff * 1.5
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];
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return avg;
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};
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PivotPointsIndicator.prototype.fibonacciPlacement = function (values) {
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var diff = values[1] - values[2], avg = [
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null,
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values[0] + diff,
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values[0] + diff * 0.618,
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values[0] + diff * 0.382,
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values[0],
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values[0] - diff * 0.382,
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values[0] - diff * 0.618,
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values[0] - diff,
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null
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];
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return avg;
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};
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/**
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* Pivot points indicator. This series requires the `linkedTo` option to be
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* set and should be loaded after `stock/indicators/indicators.js` file.
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*
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* @sample stock/indicators/pivot-points
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* Pivot points
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*
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* @extends plotOptions.sma
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* @since 6.0.0
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* @product highstock
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* @requires stock/indicators/indicators
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* @requires stock/indicators/pivotpoints
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* @optionparent plotOptions.pivotpoints
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*/
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PivotPointsIndicator.defaultOptions = merge(SMAIndicator.defaultOptions, {
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/**
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* @excluding index
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*/
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params: {
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index: void 0,
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period: 28,
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/**
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* Algorithm used to calculate ressistance and support lines based
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* on pivot points. Implemented algorithms: `'standard'`,
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* `'fibonacci'` and `'camarilla'`
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*/
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algorithm: 'standard'
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},
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marker: {
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enabled: false
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},
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enableMouseTracking: false,
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dataLabels: {
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enabled: true,
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format: '{point.pivotLine}'
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},
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dataGrouping: {
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approximation: 'averages'
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}
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});
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return PivotPointsIndicator;
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}(SMAIndicator));
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extend(PivotPointsIndicator.prototype, {
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nameBase: 'Pivot Points',
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pointArrayMap: ['R4', 'R3', 'R2', 'R1', 'P', 'S1', 'S2', 'S3', 'S4'],
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pointValKey: 'P',
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pointClass: PivotPointsPoint
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});
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/* *
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*
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* Registry
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*
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* */
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SeriesRegistry.registerSeriesType('pivotpoints', PivotPointsIndicator);
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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 PivotPointsIndicator;
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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 pivot points indicator. If the [type](#series.pivotpoints.type) option is
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* not specified, it is inherited from [chart.type](#chart.type).
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*
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* @extends series,plotOptions.pivotpoints
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* @since 6.0.0
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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/pivotpoints
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* @apioption series.pivotpoints
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*/
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''; // to include the above in the js output'
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@@ -0,0 +1,84 @@
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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 SMAPoint = SeriesRegistry.seriesTypes.sma.prototype.pointClass;
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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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/**
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* @private
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*/
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function destroyExtraLabels(point, functionName) {
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var props = point.series.pointArrayMap, prop, i = props.length;
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SeriesRegistry.seriesTypes.sma.prototype.pointClass.prototype[functionName].call(point);
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while (i--) {
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prop = 'dataLabel' + props[i];
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// S4 dataLabel could be removed by parent method:
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if (point[prop] && point[prop].element) {
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point[prop].destroy();
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}
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point[prop] = null;
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}
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}
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/* *
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||||
*
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||||
* Class
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||||
*
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* */
|
||||
var PivotPointsPoint = /** @class */ (function (_super) {
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__extends(PivotPointsPoint, _super);
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function PivotPointsPoint() {
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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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var _this = _super !== null && _super.apply(this, arguments) || this;
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_this.P = void 0;
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_this.pivotLine = void 0;
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_this.series = 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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PivotPointsPoint.prototype.destroyElements = function () {
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destroyExtraLabels(this, 'destroyElements');
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};
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// This method is called when removing points, e.g. series.update()
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PivotPointsPoint.prototype.destroy = function () {
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destroyExtraLabels(this, 'destroyElements');
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};
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return PivotPointsPoint;
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}(SMAPoint));
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/* *
|
||||
*
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||||
* Default Export
|
||||
*
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||||
* */
|
||||
export default PivotPointsPoint;
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Reference in New Issue
Block a user