Close Editor Run Reset Auto Update CJS const lcjs = require('@arction/lcjs')
const { AxisTickStrategies, emptyTick, FormattingFunctions, SolidLine, SolidFill, synchronizeAxisIntervals, lightningChart, Themes } = lcjs
const highlightIntensity = 0.2 // [0, 1]
const assetsUrl = document.head.baseURI + 'examples/assets/1300'
const exampleContainer = document.getElementById('chart') || document.body
const exampleBounds = exampleContainer.getBoundingClientRect()
const dataGridWidthFull = 800
const dashboard = lightningChart().Dashboard({
// theme: Themes.darkGold
numberOfColumns: 2,
numberOfRows: 4,
})
if (exampleBounds.width > 1200) {
dashboard.setColumnWidth(0, dataGridWidthFull).setColumnWidth(1, exampleBounds.width - dataGridWidthFull)
}
/**
* Calculate delta between open and close for given time range (1 hour, 1 day, etc.) from list of data points.
*/
const calcDataAtAGlance = (dataPoints, tStart, tEnd) => {
const dataPointsOut = []
const dataPointsLen = dataPoints.length
for (let i = 0; i < dataPointsLen; i += 1) {
const { date, rate } = dataPoints[i]
if (date >= tStart && date <= tEnd) {
dataPointsOut.push({ x: date, y: rate })
}
}
let delta = 0
if (dataPointsOut.length >= 1) {
const rateOpen = dataPointsOut[0].y
const rateClose = dataPointsOut[dataPointsOut.length - 1].y
delta = (100 * rateClose) / rateOpen - 100
}
return { dataPoints: dataPointsOut, delta }
}
const setDrillDown = (() => {
let activeDrillDown
return (coinInfo, coinData) => {
if (activeDrillDown) {
if (activeDrillDown.info === coinInfo) {
return
}
activeDrillDown.dispose()
}
const { name } = coinInfo
const chartRate = dashboard
.createChartXY({ columnIndex: 1, rowIndex: 0 })
.setTitle(`${name} Rate $`)
.setTitlePosition('series-left-top')
.setTitleMargin(0)
.forEachAxis((axis) => axis.setAnimationScroll(false))
chartRate.getDefaultAxisX().setTickStrategy(AxisTickStrategies.Empty)
const seriesRate = chartRate
.addLineSeries({ dataPattern: { pattern: 'ProgressiveX' } })
.setName(`${name} Rate $`)
.add(coinData.map((p) => ({ x: p.date, y: p.rate })))
.setCursorResultTableFormatter((builder, series, x, y, dataPoint) =>
builder
.addRow(series.getName())
.addRow(timeAxis.formatValue(dataPoint.x))
.addRow(`$${series.axisY.formatValue(dataPoint.y)}`),
)
const chartVolume = dashboard
.createChartXY({ columnIndex: 1, rowIndex: 1 })
.setTitle(`${name} Volume $`)
.setTitlePosition('series-left-top')
.setTitleMargin(0)
.forEachAxis((axis) => axis.setAnimationScroll(false))
chartVolume.getDefaultAxisX().setTickStrategy(AxisTickStrategies.Empty)
chartVolume
.getDefaultAxisY()
.setTickStrategy(AxisTickStrategies.Numeric, (ticks) => ticks.setFormattingFunction(FormattingFunctions.NumericUnits))
const seriesVolume = chartVolume
.addAreaSeries()
.setName(`${name} Volume $`)
.add(coinData.map((p) => ({ x: p.date, y: p.volume })))
.setCursorResultTableFormatter((builder, series, x, high, low) =>
builder
.addRow(series.getName())
.addRow(timeAxis.formatValue(x))
.addRow(`$${(high / 10 ** 9).toFixed(3)} B`),
)
const chartLiquidity = dashboard
.createChartXY({ columnIndex: 1, rowIndex: 2 })
.setTitle(`${name} Liquidity $`)
.setTitlePosition('series-left-top')
.setTitleMargin(0)
.forEachAxis((axis) => axis.setAnimationScroll(false))
chartLiquidity.getDefaultAxisX().setTickStrategy(AxisTickStrategies.Empty)
chartLiquidity
.getDefaultAxisY()
.setTickStrategy(AxisTickStrategies.Numeric, (ticks) => ticks.setFormattingFunction(FormattingFunctions.NumericUnits))
const seriesLiquidity = chartLiquidity
.addLineSeries({ dataPattern: { pattern: 'ProgressiveX' } })
.setName(`${name} Liquidity $`)
.add(coinData.map((p) => ({ x: p.date, y: p.liquidity })))
.setCursorResultTableFormatter((builder, series, x, y, dataPoint) =>
builder
.addRow(series.getName())
.addRow(timeAxis.formatValue(dataPoint.x))
.addRow(`$${series.axisY.formatValue(dataPoint.y)}`),
)
const chartCap = dashboard
.createChartXY({ columnIndex: 1, rowIndex: 3 })
.setTitle(`${name} Market Cap $`)
.setTitlePosition('series-left-top')
.setTitleMargin(0)
.forEachAxis((axis) => axis.setAnimationScroll(false))
chartCap.getDefaultAxisX().setTickStrategy(AxisTickStrategies.DateTime, (ticks) => ticks.setGreatTickStyle(emptyTick))
chartCap
.getDefaultAxisY()
.setTickStrategy(AxisTickStrategies.Numeric, (ticks) => ticks.setFormattingFunction(FormattingFunctions.NumericUnits))
const seriesCap = chartCap
.addLineSeries({ dataPattern: { pattern: 'ProgressiveX' } })
.setName(`${name} Market Cap $`)
.add(coinData.map((p) => ({ x: p.date, y: p.cap })))
.setCursorResultTableFormatter((builder, series, x, y, dataPoint) =>
builder
.addRow(series.getName())
.addRow(timeAxis.formatValue(dataPoint.x))
.addRow(`$${series.axisY.formatValue(dataPoint.y)}`),
)
const charts = [chartRate, chartVolume, chartLiquidity, chartCap]
const seriesList = [seriesRate, seriesVolume, seriesLiquidity, seriesCap]
const timeAxis = chartCap.getDefaultAxisX()
const axesX = charts.map((chart) => chart.getDefaultAxisX())
synchronizeAxisIntervals(...axesX)
const axesY = charts.map((chart) => chart.getDefaultAxisY())
axesY.forEach((axis) => axis.setThickness(60).setChartInteractionZoomByWheel(false).setChartInteractionPanByDrag(false))
charts.forEach((chart) => chart.setAutoCursor((cursor) => cursor.setTickMarkerXVisible(false)))
const dispose = () => {
charts.forEach((chart) => chart.dispose())
}
activeDrillDown = { info: coinInfo, dispose }
}
})()
setTimeout(async () => {
const dataGrid = dashboard.createDataGrid({ columnIndex: 0, rowIndex: 0, rowSpan: 4 })
const gridColHighlight = 0
const gridColCoin = 1
const gridColPrice = 3
const gridColMarketCap = 4
const gridColVolume = 5
const gridColAllTimeHigh = 6
const gridCol1h = 7
const gridCol24h = 8
const gridCol1w = 9
const theme = dataGrid.getTheme()
const fontHeader = theme.header2Font
const fontSymbol = theme.header1Font
const fontSymbolLong = theme.header3Font
const textFillHeader = theme.chartTitleFillStyle
const textFillGood = theme.examples.positiveTextFillStyle
const textFillBad = theme.examples.negativeTextFillStyle
const backgroundFillGood = theme.examples.positiveBackgroundFillStyle
const backgroundFillBad = theme.examples.negativeBackgroundFillStyle
const areaFillGood = theme.examples.positiveAreaFillStyle
const areaFillBad = theme.examples.negativeAreaFillStyle
const strokeGood = new SolidLine({ fillStyle: theme.examples.positiveFillStyle, thickness: 2 })
const strokeBad = new SolidLine({ fillStyle: theme.examples.negativeFillStyle, thickness: 2 })
const bgHighlightFill = new SolidFill({ color: theme.examples.highlightDataGridColor })
const bgNormalFill = theme.examples.dataGridCellBackgroundFillStyle
dataGrid
.setTitle('Crypto Watch')
.setCellsBorders({})
.setCellsPaddings(0)
.setCellContent(gridColHighlight, 0, ' ')
.setCellContent(gridColCoin, 0, 2, 1, 'Coin')
.setCellContent(gridColPrice, 0, 'Price')
.setCellContent(gridCol1h, 0, '1h')
.setCellContent(gridCol24h, 0, '24h')
.setCellContent(gridCol1w, 0, '1 week')
.setCellContent(gridColMarketCap, 0, 'Market Cap')
.setCellContent(gridColVolume, 0, 'Volume')
.setCellContent(gridColAllTimeHigh, 0, 'All-time High')
.setColumnWidth(gridColHighlight, 6)
.setColumnWidth(gridCol1h, 100)
.setColumnWidth(gridCol24h, 100)
.setColumnWidth(gridCol1w, 100)
.setRowTextFont(0, fontHeader)
.setRowBorders(0, { bottom: true })
.setRowTextFillStyle(0, textFillHeader)
const coinsInfo = await fetch(`${assetsUrl}/coins-list.json`).then((r) => r.json())
const coinsData = new Array(coinsInfo.length).fill(0)
const dNow = new Date(2022, 7, 8)
const tNow = dNow.getTime()
for (let iCoin = 0; iCoin < coinsInfo.length; iCoin += 1) {
const coinInfo = coinsInfo[iCoin]
const { code, name, rate, cap, volume, allTimeHighUSD } = coinInfo
const coinData = await fetch(`${assetsUrl}/${code}.json`).then((r) => r.json())
coinsData[iCoin] = coinData
const coinRowTop = 1 + iCoin * 2
const coinRowBottom = coinRowTop + 1
const coinIconUrl = `${assetsUrl}/${code}.png`
const coinIconImage = new Image()
coinIconImage.crossOrigin = '*'
coinIconImage.src = coinIconUrl
const icon = dataGrid.engine.addCustomIcon(coinIconImage, { height: 32 })
const dataGlance1h = calcDataAtAGlance(coinData, tNow - 1 * 60 * 60 * 1000, tNow)
const dataGlance24h = calcDataAtAGlance(coinData, tNow - 24 * 60 * 60 * 1000, tNow)
const dataGlance1w = calcDataAtAGlance(coinData, tNow - 7 * 24 * 60 * 60 * 1000, tNow)
dataGrid
.setRowHeight(coinRowTop, 30)
.setRowHeight(coinRowBottom, 30)
// NOTE: First column just used for highlighting active row.
.setCellContent(gridColHighlight, coinRowTop, 1, 2, ' ')
.setCellContent(gridColCoin, coinRowTop, 1, 2, icon)
.setCellPadding(gridColCoin, coinRowTop, { left: 5, right: 5 })
.setCellPadding(gridColCoin, coinRowTop, { left: 5 })
.setCellContent(gridColCoin + 1, coinRowTop, 1, 1, code)
.setCellTextFont(gridColCoin + 1, coinRowTop, fontSymbol)
.setCellTextFillStyle(gridColCoin + 1, coinRowTop, textFillHeader)
.setCellContentAlignment(gridColCoin + 1, coinRowTop, 'left-bottom')
.setCellContent(gridColCoin + 1, coinRowBottom, 1, 1, name)
.setCellContentAlignment(gridColCoin + 1, coinRowBottom, 'left-top')
.setCellTextFont(gridColCoin + 1, coinRowBottom, fontSymbolLong)
.setCellTextFillStyle(gridColCoin + 1, coinRowBottom, textFillHeader)
.setCellContent(gridColPrice, coinRowTop, 1, 2, `$${rate.toFixed(2)}`)
.setCellContent(gridColMarketCap, coinRowTop, 1, 2, `$${(cap / 10 ** 9).toFixed(2)}B`)
.setCellContent(gridColVolume, coinRowTop, 1, 2, `$${(volume / 10 ** 9).toFixed(2)}B`)
.setCellContent(gridColAllTimeHigh, coinRowTop, 1, 2, `$${allTimeHighUSD.toFixed(2)}`)
.setCellContent(gridCol1h, coinRowTop, `${dataGlance1h.delta >= 0 ? '+' : ''}${dataGlance1h.delta.toFixed(2)}%`)
.setCellTextFillStyle(gridCol1h, coinRowTop, dataGlance1h.delta > 0 ? textFillGood : textFillBad)
.setCellContent(gridCol1h, coinRowBottom, 'yo bro')
.setCellContent(gridCol1h, coinRowBottom, {
type: 'spark-area',
data: dataGlance1h.dataPoints,
strokeStyle: dataGlance1h.delta > 0 ? strokeGood : strokeBad,
fillStyle: dataGlance1h.delta > 0 ? areaFillGood : areaFillBad,
})
.setCellBackgroundFillStyle(gridCol1h, coinRowTop, dataGlance1h.delta > 0 ? backgroundFillGood : backgroundFillBad)
.setCellBackgroundFillStyle(gridCol1h, coinRowBottom, dataGlance1h.delta > 0 ? backgroundFillGood : backgroundFillBad)
.setCellContent(gridCol24h, coinRowTop, `${dataGlance24h.delta >= 0 ? '+' : ''}${dataGlance24h.delta.toFixed(2)}%`)
.setCellTextFillStyle(gridCol24h, coinRowTop, dataGlance24h.delta > 0 ? textFillGood : textFillBad)
.setCellContent(gridCol24h, coinRowBottom, {
type: 'spark-area',
data: dataGlance24h.dataPoints,
strokeStyle: dataGlance24h.delta > 0 ? strokeGood : strokeBad,
fillStyle: dataGlance24h.delta > 0 ? areaFillGood : areaFillBad,
})
.setCellBackgroundFillStyle(gridCol24h, coinRowTop, dataGlance24h.delta > 0 ? backgroundFillGood : backgroundFillBad)
.setCellBackgroundFillStyle(gridCol24h, coinRowBottom, dataGlance24h.delta > 0 ? backgroundFillGood : backgroundFillBad)
.setCellContent(gridCol1w, coinRowTop, `${dataGlance1w.delta >= 0 ? '+' : ''}${dataGlance1w.delta.toFixed(2)}%`)
.setCellTextFillStyle(gridCol1w, coinRowTop, dataGlance1w.delta > 0 ? textFillGood : textFillBad)
.setCellContent(gridCol1w, coinRowBottom, {
type: 'spark-area',
data: dataGlance1w.dataPoints,
strokeStyle: dataGlance1w.delta > 0 ? strokeGood : strokeBad,
fillStyle: dataGlance1w.delta > 0 ? areaFillGood : areaFillBad,
})
.setCellBackgroundFillStyle(gridCol1w, coinRowTop, dataGlance1w.delta > 0 ? backgroundFillGood : backgroundFillBad)
.setCellBackgroundFillStyle(gridCol1w, coinRowBottom, dataGlance1w.delta > 0 ? backgroundFillGood : backgroundFillBad)
.setRowBorders(coinRowBottom, { bottom: true })
.setColumnBorders(gridColAllTimeHigh, { right: true })
.setColumnBorders(gridCol1h, { right: true })
.setColumnBorders(gridCol24h, { right: true })
}
let selectedCoinIndex = 0
dataGrid.onCellMouseEnter((cell, event) => {
const iCoin = Math.floor((cell.row - 1) / 2)
if (iCoin < 0) {
return
}
dataGrid
.setRowHighlight(1 + iCoin * 2, highlightIntensity)
.setRowHighlight(1 + iCoin * 2 + 1, highlightIntensity)
.setCellBackgroundFillStyle(gridColHighlight, 1 + iCoin * 2, bgHighlightFill)
})
dataGrid.onCellMouseLeave((cell, event) => {
const iCoin = Math.floor((cell.row - 1) / 2)
dataGrid
.setRowHighlight(1 + iCoin * 2, selectedCoinIndex === iCoin ? highlightIntensity : 0)
.setRowHighlight(1 + iCoin * 2 + 1, selectedCoinIndex === iCoin ? highlightIntensity : 0)
.setCellBackgroundFillStyle(gridColHighlight, 1 + iCoin * 2, selectedCoinIndex === iCoin ? bgHighlightFill : bgNormalFill)
})
dataGrid.onCellMouseClick((cell, event) => {
const iCoin = Math.floor((cell.row - 1) / 2)
if (iCoin < 0) {
return
}
dataGrid
.setRowHighlight(1 + selectedCoinIndex * 2, false)
.setRowHighlight(1 + selectedCoinIndex * 2 + 1, false)
.setCellBackgroundFillStyle(gridColHighlight, 1 + selectedCoinIndex * 2, bgNormalFill)
selectedCoinIndex = iCoin
dataGrid
.setRowHighlight(1 + iCoin * 2, highlightIntensity)
.setRowHighlight(1 + iCoin * 2 + 1, highlightIntensity)
.setCellBackgroundFillStyle(gridColHighlight, 1 + iCoin * 2, bgHighlightFill)
setDrillDown(coinsInfo[iCoin], coinsData[iCoin])
})
dataGrid
.setRowHighlight(1 + selectedCoinIndex * 2, highlightIntensity)
.setRowHighlight(1 + selectedCoinIndex * 2 + 1, highlightIntensity)
.setCellBackgroundFillStyle(gridColHighlight, 1 + selectedCoinIndex * 2, bgHighlightFill)
setDrillDown(coinsInfo[selectedCoinIndex], coinsData[selectedCoinIndex])
}, 1000)
JavaScript Data Grid Crypto Dashboard - Editor Example showcasing LightningChart Data Grid in a cryptocurrency dashboard use case.
In this example, we can see a handful of the commonly used features of Data Grid:
IconsCurrencies are identified with Icons. Spark ChartsA lot of data can be put into small spaces with these small miniature charts. In this case, for each currency the valuation history is displayed for the last hour, day and week. Drill downClicking on a Data Grid row changes the drill down view on the right. HighlightingActively focused row is highlighted. Data Grid is a dynamic component, meaning that all its cell content can be changed at any point during runtime.
To learn more of Data Grid, click here
The data used in this example is from Live coin watch