function newCandlesPlottersCandlesVolumesCandles() { const MODULE_NAME = "Candles Plotter"; const ERROR_LOG = true; const INTENSIVE_LOG = false; const logger = newWebDebugLog(); let thisObject = { initialize: initialize, finalize: finalize, container: undefined, fitFunction: undefined, getContainer: getContainer, setTimeFrame: setTimeFrame, setDatetime: setDatetime, setCoordinateSystem: setCoordinateSystem, draw: draw, onDailyFileLoaded: onDailyFileLoaded, currentCandle: undefined }; /* this is part of the module template */ thisObject.container = newContainer() thisObject.container.initialize(MODULE_NAME) let coordinateSystem let timeFrame; // This will hold the current Time Frame the user is at. let datetime; // This will hold the current Datetime the user is at. let marketFile; // This is the current Market File being plotted. let fileCursor; // This is the current File Cursor being used to retrieve Daily Files. let marketFiles; // This object will provide the different Market Files at different Time Frames. let dailyFiles; // This object will provide the different File Cursors at different Time Frames. /* these are module specific variables: */ let candles = []; // Here we keep the candles to be plotted every time the Draw() function is called by the AAWebPlatform. let onMouseOverEventSuscriptionId let zoomChangedEventSubscriptionId let offsetChangedEventSubscriptionId let dragFinishedEventSubscriptionId let dimmensionsChangedEventSubscriptionId let marketFilesUpdatedEventSubscriptionId let dailyFilesUpdatedEventSubscriptionId let scaleChangedEventSubscriptionId let userPositionDate return thisObject; function finalize() { try { /* Stop listening to the necessary events. */ thisObject.container.eventHandler.stopListening(onMouseOverEventSuscriptionId) UI.projects.foundations.spaces.chartingSpace.viewport.eventHandler.stopListening(zoomChangedEventSubscriptionId); UI.projects.foundations.spaces.chartingSpace.viewport.eventHandler.stopListening(offsetChangedEventSubscriptionId); canvas.eventHandler.stopListening(dragFinishedEventSubscriptionId); thisObject.container.eventHandler.stopListening(dimmensionsChangedEventSubscriptionId) marketFiles.eventHandler.stopListening(marketFilesUpdatedEventSubscriptionId); dailyFiles.eventHandler.stopListening(dailyFilesUpdatedEventSubscriptionId); /* Destroyed References */ marketFiles = undefined; dailyFiles = undefined; datetime = undefined; timeFrame = undefined; marketFile = undefined; fileCursor = undefined; thisObject.fitFunction = undefined finalizeCoordinateSystem() coordinateSystem = undefined } catch (err) { if (ERROR_LOG === true) { logger.write("[ERROR] finalize -> err = " + err.stack); } } } function initialize(pStorage, pDatetime, pTimeFrame, pCoordinateSystem, callBackFunction) { try { /* Store the information received. */ marketFiles = pStorage.marketFiles[0]; dailyFiles = pStorage.dailyFiles[0]; datetime = pDatetime; timeFrame = pTimeFrame; coordinateSystem = pCoordinateSystem initializeCoordinateSystem() /* We need a Market File in order to calculate the Y scale, since this scale depends on actual data. */ marketFile = marketFiles.getFile(ONE_DAY_IN_MILISECONDS); // This file is the one processed faster. /* Now we set the right files according to current Time Frame. */ marketFile = marketFiles.getFile(pTimeFrame); fileCursor = dailyFiles.getFileCursor(pTimeFrame); /* Listen to the necessary events. */ zoomChangedEventSubscriptionId = UI.projects.foundations.spaces.chartingSpace.viewport.eventHandler.listenToEvent("Zoom Changed", onViewportZoomChanged); offsetChangedEventSubscriptionId = UI.projects.foundations.spaces.chartingSpace.viewport.eventHandler.listenToEvent("Position Changed", onViewportPositionChanged); dragFinishedEventSubscriptionId = canvas.eventHandler.listenToEvent("Drag Finished", onDragFinished); marketFilesUpdatedEventSubscriptionId = marketFiles.eventHandler.listenToEvent("Files Updated", onMarketFilesUpdated); dailyFilesUpdatedEventSubscriptionId = dailyFiles.eventHandler.listenToEvent("Files Updated", onDailyFilesUpdated); onMouseOverEventSuscriptionId = thisObject.container.eventHandler.listenToEvent('onMouseOver', onMouseOver) /* Get ready for plotting. */ recalculate(); dimmensionsChangedEventSubscriptionId = thisObject.container.eventHandler.listenToEvent('Dimmensions Changed', function () { recalculate(); }) callBackFunction(); } catch (err) { if (ERROR_LOG === true) { logger.write("[ERROR] initialize -> err = " + err.stack); } } } function initializeCoordinateSystem() { scaleChangedEventSubscriptionId = coordinateSystem.eventHandler.listenToEvent('Scale Changed', onScaleChanged) } function finalizeCoordinateSystem() { coordinateSystem.eventHandler.stopListening(scaleChangedEventSubscriptionId) } function onScaleChanged() { recalculate(); } function onMouseOver(event) { let userPosition = UI.projects.foundations.utilities.dateRateTransformations.getDateFromPointAtBrowserCanvas(event, thisObject.container, coordinateSystem) userPositionDate = userPosition.valueOf() } function getContainer(point) { try { let container; /* First we check if this point is inside this space. */ if (thisObject.container.frame.isThisPointHere(point) === true) { return thisObject.container; } else { /* This point does not belong to this space. */ return undefined; } } catch (err) { if (ERROR_LOG === true) { logger.write("[ERROR] getContainer -> err = " + err.stack); } } } function onMarketFilesUpdated() { try { let newMarketFile = marketFiles.getFile(timeFrame); if (newMarketFile !== undefined) { marketFile = newMarketFile; recalculate(); } } catch (err) { if (ERROR_LOG === true) { logger.write("[ERROR] onMarketFilesUpdated -> err = " + err.stack); } } } function onDailyFilesUpdated() { try { let newFileCursor = dailyFiles.getFileCursor(timeFrame); if (newFileCursor !== undefined) { fileCursor = newFileCursor; recalculate(); } } catch (err) { if (ERROR_LOG === true) { logger.write("[ERROR] onDailyFilesUpdated -> err = " + err.stack); } } } function setTimeFrame(pTimeFrame) { try { if (timeFrame !== pTimeFrame) { timeFrame = pTimeFrame; if (timeFrame >= _1_HOUR_IN_MILISECONDS) { let newMarketFile = marketFiles.getFile(pTimeFrame); if (newMarketFile !== undefined) { marketFile = newMarketFile; recalculate(); } } else { let newFileCursor = dailyFiles.getFileCursor(pTimeFrame); if (newFileCursor !== undefined) { fileCursor = newFileCursor; recalculate(); } } } } catch (err) { if (ERROR_LOG === true) { logger.write("[ERROR] setTimeFrame -> err = " + err.stack); } } } function setDatetime(pDatetime) { datetime = pDatetime; } function setCoordinateSystem(pCoordinateSystem) { finalizeCoordinateSystem() coordinateSystem = pCoordinateSystem initializeCoordinateSystem() } function onDailyFileLoaded(event) { try { if (event.currentValue === event.totalValue) { /* This happens only when all of the files in the cursor have been loaded. */ recalculate(); } } catch (err) { if (ERROR_LOG === true) { logger.write("[ERROR] onDailyFileLoaded -> err = " + err.stack); } } } function draw() { try { if (INTENSIVE_LOG === true) { logger.write("[INFO] draw -> Entering function."); } thisObject.container.frame.draw(); return plotChart(); } catch (err) { if (ERROR_LOG === true) { logger.write("[ERROR] draw -> err = " + err.stack); } } } function recalculate() { try { if (timeFrame >= _1_HOUR_IN_MILISECONDS) { recalculateUsingMarketFiles(); } else { recalculateUsingDailyFiles(); } thisObject.container.eventHandler.raiseEvent("Candles Changed", candles); } catch (err) { if (ERROR_LOG === true) { logger.write("[ERROR] recalculate -> err = " + err.stack); } } } function recalculateUsingDailyFiles() { try { if (fileCursor === undefined) { return; } // We need to wait if (fileCursor.files.size === 0) { return; } // We need to wait until there are files in the cursor let daysOnSides = getSideDays(timeFrame); let leftDate = UI.projects.foundations.utilities.dateRateTransformations.getDateFromPointAtBrowserCanvas(UI.projects.foundations.spaces.chartingSpace.viewport.visibleArea.topLeft, thisObject.container, coordinateSystem); let rightDate = UI.projects.foundations.utilities.dateRateTransformations.getDateFromPointAtBrowserCanvas(UI.projects.foundations.spaces.chartingSpace.viewport.visibleArea.topRight, thisObject.container, coordinateSystem); let dateDiff = rightDate.valueOf() - leftDate.valueOf(); let farLeftDate = new Date(leftDate.valueOf() - dateDiff * 1.5); let farRightDate = new Date(rightDate.valueOf() + dateDiff * 1.5); let currentDate = new Date(farLeftDate.valueOf()); candles = []; while (currentDate.valueOf() <= farRightDate.valueOf() + ONE_DAY_IN_MILISECONDS) { let stringDate = currentDate.getUTCFullYear() + '-' + pad(currentDate.getUTCMonth() + 1, 2) + '-' + pad(currentDate.getUTCDate(), 2); let dailyFile = fileCursor.files.get(stringDate); if (dailyFile !== undefined) { for (let i = 0; i < dailyFile.length; i++) { let candle = { open: undefined, close: undefined, min: 10000000000000, max: 0, begin: undefined, end: undefined, direction: undefined }; candle.min = dailyFile[i][0]; candle.max = dailyFile[i][1]; candle.open = dailyFile[i][2]; candle.close = dailyFile[i][3]; candle.begin = dailyFile[i][4]; candle.end = dailyFile[i][5]; if (candle.open > candle.close) { candle.direction = 'down'; } if (candle.open < candle.close) { candle.direction = 'up'; } if (candle.open === candle.close) { candle.direction = 'side'; } /* Contributing to Auto-Scale*/ if (i === 0) { coordinateSystem.reportXValue(candle.begin) } if (i === dailyFile.length - 1) { coordinateSystem.reportXValue(candle.end) } if ( (candle.begin >= farLeftDate.valueOf() && candle.end <= farRightDate.valueOf()) && (candle.begin >= coordinateSystem.min.x && candle.end <= coordinateSystem.max.x) ) { candles.push(candle); if (datetime.valueOf() >= candle.begin && datetime.valueOf() <= candle.end) { thisObject.currentCandle = candle; thisObject.container.eventHandler.raiseEvent("Current Record Changed", thisObject.currentCandle); } } } } currentDate = new Date(currentDate.valueOf() + ONE_DAY_IN_MILISECONDS); } /* Lets check if all the visible screen is going to be covered by candles. */ let lowerEnd = leftDate.valueOf(); let upperEnd = rightDate.valueOf(); if (candles.length > 0) { if (candles[0].begin > lowerEnd || candles[candles.length - 1].end < upperEnd) { setTimeout(recalculate, 2000); } } } catch (err) { if (ERROR_LOG === true) { logger.write("[ERROR] recalculateUsingDailyFiles -> err = " + err.stack); } } } function recalculateUsingMarketFiles() { try { if (marketFile === undefined) { return; } // Initialization not complete yet. let daysOnSides = getSideDays(timeFrame); let leftDate = UI.projects.foundations.utilities.dateRateTransformations.getDateFromPointAtBrowserCanvas(UI.projects.foundations.spaces.chartingSpace.viewport.visibleArea.topLeft, thisObject.container, coordinateSystem); let rightDate = UI.projects.foundations.utilities.dateRateTransformations.getDateFromPointAtBrowserCanvas(UI.projects.foundations.spaces.chartingSpace.viewport.visibleArea.topRight, thisObject.container, coordinateSystem); let dateDiff = rightDate.valueOf() - leftDate.valueOf(); leftDate = new Date(leftDate.valueOf() - dateDiff * 1.5); rightDate = new Date(rightDate.valueOf() + dateDiff * 1.5); candles = []; for (let i = 0; i < marketFile.length; i++) { let candle = { open: undefined, close: undefined, min: 10000000000000, max: 0, begin: undefined, end: undefined, direction: undefined }; candle.min = marketFile[i][0]; candle.max = marketFile[i][1]; candle.open = marketFile[i][2]; candle.close = marketFile[i][3]; candle.begin = marketFile[i][4]; candle.end = marketFile[i][5]; if (candle.open > candle.close) { candle.direction = 'down'; } if (candle.open < candle.close) { candle.direction = 'up'; } if (candle.open === candle.close) { candle.direction = 'side'; } /* Contributing to Auto-Scale*/ if (i === 0) { coordinateSystem.reportXValue(candle.begin) } if (i === marketFile.length - 1) { coordinateSystem.reportXValue(candle.end) } if ( (candle.begin >= leftDate.valueOf() && candle.end <= rightDate.valueOf()) && (candle.begin >= coordinateSystem.min.x && candle.end <= coordinateSystem.max.x) ) { candles.push(candle); if (datetime.valueOf() >= candle.begin && datetime.valueOf() <= candle.end) { thisObject.currentCandle = candle; thisObject.container.eventHandler.raiseEvent("Current Record Changed", thisObject.currentCandle); } } } } catch (err) { if (ERROR_LOG === true) { logger.write("[ERROR] recalculateUsingMarketFiles -> err = " + err.stack); } } } function plotChart() { try { let elementsPlotted = 0 let lowResolution = false if (UI.projects.foundations.spaces.chartingSpace.viewport.zoomTargetLevel < UI.projects.foundations.globals.zoom.ZOOM_OUT_THRESHOLD_FOR_PLOTTING_IN_LOW_RESOLUTION) { if (candles.length > 100) { lowResolution = true } } if (candles.length > 0) { /* On screen candles */ let onScreenCandles = [] let mouseCandle /* Now we calculate all the points. */ for (let i = 0; i < candles.length; i++) { candle = candles[i]; candle.candlePoint1 = { x: candle.begin + timeFrame / 7 * 1.5, y: candle.open }; candle.candlePoint2 = { x: candle.begin + timeFrame / 7 * 5.5, y: candle.open }; candle.candlePoint3 = { x: candle.begin + timeFrame / 7 * 5.5, y: candle.close }; candle.candlePoint4 = { x: candle.begin + timeFrame / 7 * 1.5, y: candle.close }; candle.candlePoint1 = coordinateSystem.transformThisPoint(candle.candlePoint1); candle.candlePoint2 = coordinateSystem.transformThisPoint(candle.candlePoint2); candle.candlePoint3 = coordinateSystem.transformThisPoint(candle.candlePoint3); candle.candlePoint4 = coordinateSystem.transformThisPoint(candle.candlePoint4); candle.candlePoint1 = UI.projects.foundations.utilities.coordinateTransformations.transformThisPoint(candle.candlePoint1, thisObject.container); candle.candlePoint2 = UI.projects.foundations.utilities.coordinateTransformations.transformThisPoint(candle.candlePoint2, thisObject.container); candle.candlePoint3 = UI.projects.foundations.utilities.coordinateTransformations.transformThisPoint(candle.candlePoint3, thisObject.container); candle.candlePoint4 = UI.projects.foundations.utilities.coordinateTransformations.transformThisPoint(candle.candlePoint4, thisObject.container); /* Skip the first candle with zero at open */ if (candle.open === 0) { continue } if (candle.candlePoint2.x < UI.projects.foundations.spaces.chartingSpace.viewport.visibleArea.bottomLeft.x || candle.candlePoint1.x > UI.projects.foundations.spaces.chartingSpace.viewport.visibleArea.bottomRight.x) { continue } addToOnScreenCandles(candle) candle.stickPoint1 = { x: candle.begin + timeFrame / 7 * 3.2, y: candle.max }; candle.stickPoint2 = { x: candle.begin + timeFrame / 7 * 3.8, y: candle.max }; candle.stickPoint3 = { x: candle.begin + timeFrame / 7 * 3.8, y: candle.min }; candle.stickPoint4 = { x: candle.begin + timeFrame / 7 * 3.2, y: candle.min }; candle.stickPoint1 = coordinateSystem.transformThisPoint(candle.stickPoint1); candle.stickPoint2 = coordinateSystem.transformThisPoint(candle.stickPoint2); candle.stickPoint3 = coordinateSystem.transformThisPoint(candle.stickPoint3); candle.stickPoint4 = coordinateSystem.transformThisPoint(candle.stickPoint4); candle.stickPoint1 = UI.projects.foundations.utilities.coordinateTransformations.transformThisPoint(candle.stickPoint1, thisObject.container); candle.stickPoint2 = UI.projects.foundations.utilities.coordinateTransformations.transformThisPoint(candle.stickPoint2, thisObject.container); candle.stickPoint3 = UI.projects.foundations.utilities.coordinateTransformations.transformThisPoint(candle.stickPoint3, thisObject.container); candle.stickPoint4 = UI.projects.foundations.utilities.coordinateTransformations.transformThisPoint(candle.stickPoint4, thisObject.container); if (UI.projects.foundations.spaces.chartingSpace.viewport.zoomTargetLevel < UI.projects.foundations.globals.zoom.ZOOM_OUT_THRESHOLD_FOR_PACKING_OBJECTS_AT_THE_BOTTOM_OR_TOP_OF_VIEWPORT) { let diffA = candle.stickPoint3.y - UI.projects.foundations.spaces.chartingSpace.viewport.visibleArea.bottomLeft.y if (diffA > 0) { candle.candlePoint1.y = candle.candlePoint1.y - diffA candle.candlePoint2.y = candle.candlePoint2.y - diffA candle.candlePoint3.y = candle.candlePoint3.y - diffA candle.candlePoint4.y = candle.candlePoint4.y - diffA candle.stickPoint1.y = candle.stickPoint1.y - diffA candle.stickPoint2.y = candle.stickPoint2.y - diffA candle.stickPoint3.y = candle.stickPoint3.y - diffA candle.stickPoint4.y = candle.stickPoint4.y - diffA } let diffB = candle.stickPoint1.y - UI.projects.foundations.spaces.chartingSpace.viewport.visibleArea.topLeft.y if (diffB < 0) { candle.candlePoint1.y = candle.candlePoint1.y - diffB candle.candlePoint2.y = candle.candlePoint2.y - diffB candle.candlePoint3.y = candle.candlePoint3.y - diffB candle.candlePoint4.y = candle.candlePoint4.y - diffB candle.stickPoint1.y = candle.stickPoint1.y - diffB candle.stickPoint2.y = candle.stickPoint2.y - diffB candle.stickPoint3.y = candle.stickPoint3.y - diffB candle.stickPoint4.y = candle.stickPoint4.y - diffB } } candle.candlePoint1 = UI.projects.foundations.spaces.chartingSpace.viewport.fitIntoVisibleArea(candle.candlePoint1); candle.candlePoint2 = UI.projects.foundations.spaces.chartingSpace.viewport.fitIntoVisibleArea(candle.candlePoint2); candle.candlePoint3 = UI.projects.foundations.spaces.chartingSpace.viewport.fitIntoVisibleArea(candle.candlePoint3); candle.candlePoint4 = UI.projects.foundations.spaces.chartingSpace.viewport.fitIntoVisibleArea(candle.candlePoint4); candle.candlePoint1 = thisObject.fitFunction(candle.candlePoint1); candle.candlePoint2 = thisObject.fitFunction(candle.candlePoint2); candle.candlePoint3 = thisObject.fitFunction(candle.candlePoint3); candle.candlePoint4 = thisObject.fitFunction(candle.candlePoint4); candle.stickPoint1 = UI.projects.foundations.spaces.chartingSpace.viewport.fitIntoVisibleArea(candle.stickPoint1); candle.stickPoint2 = UI.projects.foundations.spaces.chartingSpace.viewport.fitIntoVisibleArea(candle.stickPoint2); candle.stickPoint3 = UI.projects.foundations.spaces.chartingSpace.viewport.fitIntoVisibleArea(candle.stickPoint3); candle.stickPoint4 = UI.projects.foundations.spaces.chartingSpace.viewport.fitIntoVisibleArea(candle.stickPoint4); candle.stickPoint1 = thisObject.fitFunction(candle.stickPoint1); candle.stickPoint2 = thisObject.fitFunction(candle.stickPoint2); candle.stickPoint3 = thisObject.fitFunction(candle.stickPoint3); candle.stickPoint4 = thisObject.fitFunction(candle.stickPoint4); } function addToOnScreenCandles(candle) { /* Contributing to Auto-Scale*/ coordinateSystem.reportYValue(candle.max) coordinateSystem.reportYValue(candle.min) //if (onScreenCandles.length < 15000) { onScreenCandles.push(candle) //} if (userPositionDate >= candle.begin && userPositionDate <= candle.end) { mouseCandle = candle } } /* We draw the sticks */ browserCanvasContext.beginPath(); for (let i = 0; i < onScreenCandles.length; i++) { candle = onScreenCandles[i]; browserCanvasContext.moveTo(candle.stickPoint1.x, candle.stickPoint1.y); browserCanvasContext.lineTo(candle.stickPoint2.x, candle.stickPoint2.y); browserCanvasContext.lineTo(candle.stickPoint3.x, candle.stickPoint3.y); browserCanvasContext.lineTo(candle.stickPoint4.x, candle.stickPoint4.y); } browserCanvasContext.closePath(); if (lowResolution === false) { browserCanvasContext.fillStyle = 'rgba(' + UI_COLOR.DARK + ', 1)'; browserCanvasContext.fill(); browserCanvasContext.strokeStyle = 'rgba(' + UI_COLOR.LIGHT + ', 1)'; browserCanvasContext.lineWidth = 1; browserCanvasContext.setLineDash([]) // Resets Line Dash browserCanvasContext.stroke(); } /* The stick at the mouse candle */ if (mouseCandle) { browserCanvasContext.beginPath(); candle = mouseCandle browserCanvasContext.moveTo(candle.stickPoint1.x, candle.stickPoint1.y); browserCanvasContext.lineTo(candle.stickPoint2.x, candle.stickPoint2.y); browserCanvasContext.lineTo(candle.stickPoint3.x, candle.stickPoint3.y); browserCanvasContext.lineTo(candle.stickPoint4.x, candle.stickPoint4.y); browserCanvasContext.closePath(); if (lowResolution === false) { browserCanvasContext.fillStyle = 'rgba(' + UI_COLOR.DARK + ', 1)'; browserCanvasContext.fill(); } browserCanvasContext.strokeStyle = 'rgba(' + UI_COLOR.TITANIUM_YELLOW + ', 1)'; browserCanvasContext.lineWidth = 1; browserCanvasContext.setLineDash([]) // Resets Line Dash browserCanvasContext.stroke(); } /* We draw the candles. */ drawCandlesByDirection('up') drawCandlesByDirection('down') drawCandlesByDirection('side') function drawCandlesByDirection(direction) { browserCanvasContext.beginPath(); for (let i = 0; i < onScreenCandles.length; i++) { candle = onScreenCandles[i]; if (candle.direction !== direction) { continue } browserCanvasContext.moveTo(candle.candlePoint1.x, candle.candlePoint1.y); browserCanvasContext.lineTo(candle.candlePoint2.x, candle.candlePoint2.y); browserCanvasContext.lineTo(candle.candlePoint3.x, candle.candlePoint3.y); browserCanvasContext.lineTo(candle.candlePoint4.x, candle.candlePoint4.y); browserCanvasContext.lineTo(candle.candlePoint1.x, candle.candlePoint1.y); elementsPlotted++ } browserCanvasContext.closePath(); if (lowResolution === false) { if (direction === 'up') { browserCanvasContext.fillStyle = 'rgba(' + UI_COLOR.GREEN + ', 1)'; } if (direction === 'down') { browserCanvasContext.fillStyle = 'rgba(' + UI_COLOR.RUSTED_RED + ', 1)'; } if (direction === 'side') { browserCanvasContext.fillStyle = 'rgba(' + UI_COLOR.DARK + ', 1)'; } browserCanvasContext.fill(); } if (direction === 'up') { browserCanvasContext.strokeStyle = 'rgba(' + UI_COLOR.PATINATED_TURQUOISE + ', 1)'; } if (direction === 'down') { browserCanvasContext.strokeStyle = 'rgba(' + UI_COLOR.RED + ', 1)'; } if (direction === 'side') { browserCanvasContext.strokeStyle = 'rgba(' + UI_COLOR.DARK + ', 1)'; } browserCanvasContext.lineWidth = 1; browserCanvasContext.setLineDash([]) // Resets Line Dash browserCanvasContext.stroke(); } /* Draw mouse candle and Raise Event. */ if (mouseCandle) { /* highlight the current candle */ browserCanvasContext.beginPath(); candle = mouseCandle browserCanvasContext.moveTo(candle.candlePoint1.x, candle.candlePoint1.y); browserCanvasContext.lineTo(candle.candlePoint2.x, candle.candlePoint2.y); browserCanvasContext.lineTo(candle.candlePoint3.x, candle.candlePoint3.y); browserCanvasContext.lineTo(candle.candlePoint4.x, candle.candlePoint4.y); browserCanvasContext.closePath(); browserCanvasContext.fillStyle = 'rgba(' + UI_COLOR.TITANIUM_YELLOW + ', 1)'; // Current candle according to time browserCanvasContext.fill(); let currentCandle = { bodyWidth: candle.candlePoint2.x - candle.candlePoint1.x, bodyHeight: candle.candlePoint3.y - candle.candlePoint2.y, stickHeight: candle.stickPoint4.y - candle.stickPoint2.y, stickWidth: candle.stickPoint2.x - candle.stickPoint1.x, stickStart: candle.candlePoint2.y - candle.stickPoint2.y, timeFrame: timeFrame, innerCandle: candle }; thisObject.container.eventHandler.raiseEvent("Current Record Changed", currentCandle); } } return elementsPlotted } catch (err) { if (ERROR_LOG === true) { logger.write("[ERROR] plotChart -> err = " + err.stack); } } } function onViewportZoomChanged(event) { try { recalculate(); } catch (err) { if (ERROR_LOG === true) { logger.write("[ERROR] onViewportZoomChanged -> err = " + err.stack); } } } function onViewportPositionChanged(event) { try { if (event !== undefined) { if (event.recalculate === true) { recalculate() return } } if (Math.random() * 100 > 95) { recalculate() }; } catch (err) { if (ERROR_LOG === true) { logger.write("[ERROR] onViewportPositionChanged -> err = " + err.stack); } } } function onDragFinished() { try { recalculate(); } catch (err) { if (ERROR_LOG === true) { logger.write("[ERROR] onDragFinished -> err = " + err.stack); } } } }