all files / chart/technical-indicators/ sma-indicator.js

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/* istanbul ignore next */ 
var __extends = (this && this.__extends) || (function () {
    var extendStatics = function (d, b) {
        extendStatics = Object.setPrototypeOf ||
            ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
        return extendStatics(d, b);
    };
    return function (d, b) {
        extendStatics(d, b);
        function __() { this.constructor = d; }
        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
    };
})();
define(["require", "exports", "../../common/utils/helper", "./indicator-base"], function (require, exports, helper_1, indicator_base_1) {
    "use strict";
    Object.defineProperty(exports, "__esModule", { value: true });
    var SmaIndicator = (function (_super) {
        __extends(SmaIndicator, _super);
        function SmaIndicator() {
            return _super !== null && _super.apply(this, arguments) || this;
        }
        SmaIndicator.prototype.initDataSource = function (indicator) {
            var smaPoints = [];
            var points = indicator.points;
            if (points && points.length) {
                var validData = points;
                var field = helper_1.firstToLowerCase(indicator.field);
                var xField = 'x';
                var signalSeries = indicator.targetSeries[0];
                if (validData && validData.length && validData.length >= indicator.period) {
                    var average = 0;
                    var sum = 0;
                    for (var i = 0; i < indicator.period; i++) {
                        sum += validData[i][field];
                    }
                    average = sum / indicator.period;
                    smaPoints.push(this.getDataPoint(validData[indicator.period - 1][xField], average, validData[indicator.period - 1], signalSeries, smaPoints.length));
                    var index = indicator.period;
                    while (index < validData.length) {
                        sum -= validData[index - indicator.period][field];
                        sum += validData[index][field];
                        average = sum / indicator.period;
                        smaPoints.push(this.getDataPoint(validData[index][xField], average, validData[index], signalSeries, smaPoints.length));
                        index++;
                    }
                }
                this.setSeriesRange(smaPoints, indicator);
            }
        };
        SmaIndicator.prototype.destroy = function () {
        };
        SmaIndicator.prototype.getModuleName = function () {
            return 'SmaIndicator';
        };
        return SmaIndicator;
    }(indicator_base_1.TechnicalAnalysis));
    exports.SmaIndicator = SmaIndicator;
});