/*
** Util functions which are dependent on ApexCharts instance
*/
class CoreUtils {
constructor(ctx) {
this.ctx = ctx
this.w = ctx.w
}
static checkComboSeries(series, chartType) {
let comboCharts = false
let comboBarCount = 0
let comboCount = 0
if (chartType === undefined) {
chartType = 'line'
}
// Check if user specified a type in series that may make us a combo chart.
// The default type for chart is "line" and the default for series is the
// chart type, therefore, if the types of all series match the chart type,
// this should not be considered a combo chart.
if (series.length && typeof series[0].type !== 'undefined') {
series.forEach((s) => {
if (
s.type === 'bar' ||
s.type === 'column' ||
s.type === 'candlestick' ||
s.type === 'boxPlot'
) {
comboBarCount++
}
if (typeof s.type !== 'undefined' && s.type !== chartType) {
comboCount++
}
})
}
if (comboCount > 0) {
comboCharts = true
}
return {
comboBarCount,
comboCharts,
}
}
/**
* @memberof CoreUtils
* returns the sum of all individual values in a multiple stacked series
* Eg. w.globals.series = [[32,33,43,12], [2,3,5,1]]
* @return [34,36,48,13]
**/
getStackedSeriesTotals(excludedSeriesIndices = []) {
const w = this.w
let total = []
if (w.globals.series.length === 0) return total
for (
let i = 0;
i < w.globals.series[w.globals.maxValsInArrayIndex].length;
i++
) {
let t = 0
for (let j = 0; j < w.globals.series.length; j++) {
if (
typeof w.globals.series[j][i] !== 'undefined' &&
excludedSeriesIndices.indexOf(j) === -1
) {
t += w.globals.series[j][i]
}
}
total.push(t)
}
return total
}
// get total of the all values inside all series
getSeriesTotalByIndex(index = null) {
if (index === null) {
// non-plot chart types - pie / donut / circle
return this.w.config.series.reduce((acc, cur) => acc + cur, 0)
} else {
// axis charts - supporting multiple series
return this.w.globals.series[index].reduce((acc, cur) => acc + cur, 0)
}
}
/**
* @memberof CoreUtils
* returns the sum of values in a multiple stacked grouped charts
* Eg. w.globals.series = [[32,33,43,12], [2,3,5,1], [43, 23, 34, 22]]
* series 1 and 2 are in a group, while series 3 is in another group
* @return [[34, 36, 48, 12], [43, 23, 34, 22]]
**/
getStackedSeriesTotalsByGroups() {
const w = this.w
let total = []
w.globals.seriesGroups.forEach((sg) => {
let includedIndexes = []
w.config.series.forEach((s, si) => {
if (sg.indexOf(w.globals.seriesNames[si]) > -1) {
includedIndexes.push(si)
}
})
const excludedIndices = w.globals.series
.map((_, fi) => (includedIndexes.indexOf(fi) === -1 ? fi : -1))
.filter((f) => f !== -1)
total.push(this.getStackedSeriesTotals(excludedIndices))
})
return total
}
setSeriesYAxisMappings() {
const gl = this.w.globals
const cnf = this.w.config
// The old config method to map multiple series to a y axis is to
// include one yaxis config per series but set each yaxis seriesName to the
// same series name. This relies on indexing equivalence to map series to
// an axis: series[n] => yaxis[n]. This needs to be retained for compatibility.
// But we introduce an alternative that explicitly configures yaxis elements
// with the series that will be referenced to them (seriesName: []). This
// only requires including the yaxis elements that will be seen on the chart.
// Old way:
// ya: s
// 0: 0
// 1: 1
// 2: 1
// 3: 1
// 4: 1
// Axes 0..4 are all scaled and all will be rendered unless the axes are
// show: false. If the chart is stacked, it's assumed that series 1..4 are
// the contributing series. This is not particularly intuitive.
// New way:
// ya: s
// 0: [0]
// 1: [1,2,3,4]
// If the chart is stacked, it can be assumed that any axis with multiple
// series is stacked.
//
// If this is an old chart and we are being backward compatible, it will be
// expected that each series is associated with it's corresponding yaxis
// through their indices, one-to-one.
// If yaxis.seriesName matches series.name, we have indices yi and si.
// A name match where yi != si is interpretted as yaxis[yi] and yaxis[si]
// will both be scaled to fit the combined series[si] and series[yi].
// Consider series named: S0,S1,S2 and yaxes A0,A1,A2.
//
// Example 1: A0 and A1 scaled the same.
// A0.seriesName: S0
// A1.seriesName: S0
// A2.seriesName: S2
// Then A1 <-> A0
//
// Example 2: A0, A1 and A2 all scaled the same.
// A0.seriesName: S2
// A1.seriesName: S0
// A2.seriesName: S1
// A0 <-> A2, A1 <-> A0, A2 <-> A1 --->>> A0 <-> A1 <-> A2
let axisSeriesMap = []
let seriesYAxisReverseMap = []
let unassignedSeriesIndices = []
let seriesNameArrayStyle =
gl.series.length > cnf.yaxis.length
|| cnf.yaxis.some((a) => Array.isArray(a.seriesName))
cnf.series.forEach((s, i) => {
unassignedSeriesIndices.push(i)
seriesYAxisReverseMap.push(null)
})
cnf.yaxis.forEach((yaxe, yi) => {
axisSeriesMap[yi] = []
})
let unassignedYAxisIndices = []
// here, we loop through the yaxis array and find the item which has "seriesName" property
cnf.yaxis.forEach((yaxe, yi) => {
let assigned = false
// Allow seriesName to be either a string (for backward compatibility),
// in which case, handle multiple yaxes referencing the same series.
// or an array of strings so that a yaxis can reference multiple series.
// Feature request #4237
if (yaxe.seriesName) {
let seriesNames = []
if (Array.isArray(yaxe.seriesName)) {
seriesNames = yaxe.seriesName
} else {
seriesNames.push(yaxe.seriesName)
}
seriesNames.forEach((name) => {
cnf.series.forEach((s, si) => {
if (s.name === name) {
let remove = si
if (yi === si || seriesNameArrayStyle) {
// New style, don't allow series to be double referenced
if (!seriesNameArrayStyle
|| unassignedSeriesIndices.indexOf(si) > -1
) {
axisSeriesMap[yi].push([yi, si])
} else {
console.warn(
"Series '"
+ s.name
+ "' referenced more than once in what looks like the new style."
+ " That is, when using either seriesName: [],"
+ " or when there are more series than yaxes.")
}
} else {
// The series index refers to the target yaxis and the current
// yaxis index refers to the actual referenced series.
axisSeriesMap[si].push([si, yi])
remove = yi
}
assigned = true
remove = unassignedSeriesIndices.indexOf(remove)
if (remove !== -1) {
unassignedSeriesIndices.splice(remove, 1)
}
}
})
})
}
if (!assigned) {
unassignedYAxisIndices.push(yi)
}
})
axisSeriesMap = axisSeriesMap.map((yaxe, yi) => {
let ra = []
yaxe.forEach((sa) => {
seriesYAxisReverseMap[sa[1]] = sa[0]
ra.push(sa[1])
})
return ra
})
// All series referenced directly by yaxes have been assigned to those axes.
// Any series so far unassigned will be assigned to any yaxes that have yet
// to reference series directly, one-for-one in order of appearance, with
// all left-over series assigned to either the last unassigned yaxis, or the
// last yaxis if all have assigned series. This captures the
// default single and multiaxis config options which simply includes zero,
// one or as many yaxes as there are series but do not reference them by name.
let lastUnassignedYAxis = cnf.yaxis.length - 1
for (let i = 0; i < unassignedYAxisIndices.length; i++) {
lastUnassignedYAxis = unassignedYAxisIndices[i]
axisSeriesMap[lastUnassignedYAxis] = []
if (unassignedSeriesIndices) {
let si = unassignedSeriesIndices[0]
unassignedSeriesIndices.shift()
axisSeriesMap[lastUnassignedYAxis].push(si)
seriesYAxisReverseMap[si] = lastUnassignedYAxis
} else {
break
}
}
unassignedSeriesIndices.forEach((i) => {
axisSeriesMap[lastUnassignedYAxis].push(i)
seriesYAxisReverseMap[i] = lastUnassignedYAxis
})
// For the old-style seriesName-as-string-only, leave the zero-length yaxis
// array elements in for compatibility so that series.length == yaxes.length
// for multi axis charts.
gl.seriesYAxisMap = axisSeriesMap.map((x) => x)
gl.seriesYAxisReverseMap = seriesYAxisReverseMap.map((x) => x)
// Set default series group names
gl.seriesYAxisMap.forEach((axisSeries, ai) => {
axisSeries.forEach((si) => {
// series may be bare until loaded in realtime
if (cnf.series[si] && cnf.series[si].group === undefined) {
// A series with no group defined will be named after the axis that
// referenced it and thus form a group automatically.
cnf.series[si].group = 'apexcharts-axis-'.concat(ai.toString())
}
})
})
}
isSeriesNull(index = null) {
let r = []
if (index === null) {
// non-plot chart types - pie / donut / circle
r = this.w.config.series.filter((d) => d !== null)
} else {
// axis charts - supporting multiple series
r = this.w.config.series[index].data.filter((d) => d !== null)
}
return r.length === 0
}
seriesHaveSameValues(index) {
return this.w.globals.series[index].every((val, i, arr) => val === arr[0])
}
getCategoryLabels(labels) {
const w = this.w
let catLabels = labels.slice()
if (w.config.xaxis.convertedCatToNumeric) {
catLabels = labels.map((i, li) => {
return w.config.xaxis.labels.formatter(i - w.globals.minX + 1)
})
}
return catLabels
}
// maxValsInArrayIndex is the index of series[] which has the largest number of items
getLargestSeries() {
const w = this.w
w.globals.maxValsInArrayIndex = w.globals.series
.map((a) => a.length)
.indexOf(
Math.max.apply(
Math,
w.globals.series.map((a) => a.length)
)
)
}
getLargestMarkerSize() {
const w = this.w
let size = 0
w.globals.markers.size.forEach((m) => {
size = Math.max(size, m)
})
if (w.config.markers.discrete && w.config.markers.discrete.length) {
w.config.markers.discrete.forEach((m) => {
size = Math.max(size, m.size)
})
}
if (size > 0) {
size += w.config.markers.hover.sizeOffset + 1
}
w.globals.markers.largestSize = size
return size
}
/**
* @memberof Core
* returns the sum of all values in a series
* Eg. w.globals.series = [[32,33,43,12], [2,3,5,1]]
* @return [120, 11]
**/
getSeriesTotals() {
const w = this.w
w.globals.seriesTotals = w.globals.series.map((ser, index) => {
let total = 0
if (Array.isArray(ser)) {
for (let j = 0; j < ser.length; j++) {
total += ser[j]
}
} else {
// for pie/donuts/gauges
total += ser
}
return total
})
}
getSeriesTotalsXRange(minX, maxX) {
const w = this.w
const seriesTotalsXRange = w.globals.series.map((ser, index) => {
let total = 0
for (let j = 0; j < ser.length; j++) {
if (
w.globals.seriesX[index][j] > minX &&
w.globals.seriesX[index][j] < maxX
) {
total += ser[j]
}
}
return total
})
return seriesTotalsXRange
}
/**
* @memberof CoreUtils
* returns the percentage value of all individual values which can be used in a 100% stacked series
* Eg. w.globals.series = [[32, 33, 43, 12], [2, 3, 5, 1]]
* @return [[94.11, 91.66, 89.58, 92.30], [5.88, 8.33, 10.41, 7.7]]
**/
getPercentSeries() {
const w = this.w
w.globals.seriesPercent = w.globals.series.map((ser, index) => {
let seriesPercent = []
if (Array.isArray(ser)) {
for (let j = 0; j < ser.length; j++) {
let total = w.globals.stackedSeriesTotals[j]
let percent = 0
if (total) {
percent = (100 * ser[j]) / total
}
seriesPercent.push(percent)
}
} else {
const total = w.globals.seriesTotals.reduce((acc, val) => acc + val, 0)
let percent = (100 * ser) / total
seriesPercent.push(percent)
}
return seriesPercent
})
}
getCalculatedRatios() {
let w = this.w
let gl = w.globals
let yRatio = []
let invertedYRatio = 0
let xRatio = 0
let invertedXRatio = 0
let zRatio = 0
let baseLineY = []
let baseLineInvertedY = 0.1
let baseLineX = 0
gl.yRange = []
if (gl.isMultipleYAxis) {
for (let i = 0; i < gl.minYArr.length; i++) {
gl.yRange.push(Math.abs(gl.minYArr[i] - gl.maxYArr[i]))
baseLineY.push(0)
}
} else {
gl.yRange.push(Math.abs(gl.minY - gl.maxY))
}
gl.xRange = Math.abs(gl.maxX - gl.minX)
gl.zRange = Math.abs(gl.maxZ - gl.minZ)
// multiple y axis
for (let i = 0; i < gl.yRange.length; i++) {
yRatio.push(gl.yRange[i] / gl.gridHeight)
}
xRatio = gl.xRange / gl.gridWidth
invertedYRatio = gl.yRange / gl.gridWidth
invertedXRatio = gl.xRange / gl.gridHeight
zRatio = (gl.zRange / gl.gridHeight) * 16
if (!zRatio) {
zRatio = 1
}
if (gl.minY !== Number.MIN_VALUE && Math.abs(gl.minY) !== 0) {
// Negative numbers present in series
gl.hasNegs = true
}
// Check we have a map as series may still to be added/updated.
if (w.globals.seriesYAxisReverseMap.length > 0) {
let scaleBaseLineYScale = (y, i) => {
let yAxis = w.config.yaxis[w.globals.seriesYAxisReverseMap[i]]
let sign = y < 0 ? -1 : 1
y = Math.abs(y)
if (yAxis.logarithmic) {
y = this.getBaseLog(yAxis.logBase, y)
}
return -sign * y / yRatio[i]
}
if (gl.isMultipleYAxis) {
baseLineY = []
// baseline variables is the 0 of the yaxis which will be needed when there are negatives
for (let i = 0; i < yRatio.length; i++) {
baseLineY.push(scaleBaseLineYScale(gl.minYArr[i], i))
}
} else {
baseLineY = []
baseLineY.push(scaleBaseLineYScale(gl.minY, 0))
if (gl.minY !== Number.MIN_VALUE && Math.abs(gl.minY) !== 0) {
baseLineInvertedY = -gl.minY / invertedYRatio // this is for bar chart
baseLineX = gl.minX / xRatio
}
}
} else {
baseLineY = []
baseLineY.push(0)
baseLineInvertedY = 0
baseLineX = 0
}
return {
yRatio,
invertedYRatio,
zRatio,
xRatio,
invertedXRatio,
baseLineInvertedY,
baseLineY,
baseLineX,
}
}
getLogSeries(series) {
const w = this.w
w.globals.seriesLog = series.map((s, i) => {
let yAxisIndex = w.globals.seriesYAxisReverseMap[i]
if (w.config.yaxis[yAxisIndex] && w.config.yaxis[yAxisIndex].logarithmic) {
return s.map((d) => {
if (d === null) return null
return this.getLogVal(w.config.yaxis[yAxisIndex].logBase, d, i)
})
} else {
return s
}
})
return w.globals.invalidLogScale ? series : w.globals.seriesLog
}
getBaseLog(base, value) {
return Math.log(value) / Math.log(base)
}
getLogVal(b, d, seriesIndex) {
if (d <= 0) {
return 0 // Should be Number.NEGATIVE_INFINITY
}
const w = this.w
const min_log_val =
w.globals.minYArr[seriesIndex] === 0
? -1 // make sure we dont calculate log of 0
: this.getBaseLog(b, w.globals.minYArr[seriesIndex])
const max_log_val =
w.globals.maxYArr[seriesIndex] === 0
? 0 // make sure we dont calculate log of 0
: this.getBaseLog(b, w.globals.maxYArr[seriesIndex])
const number_of_height_levels = max_log_val - min_log_val
if (d < 1) return d / number_of_height_levels
const log_height_value = this.getBaseLog(b, d) - min_log_val
return log_height_value / number_of_height_levels
}
getLogYRatios(yRatio) {
const w = this.w
const gl = this.w.globals
gl.yLogRatio = yRatio.slice()
gl.logYRange = gl.yRange.map((yRange, i) => {
let yAxisIndex = w.globals.seriesYAxisReverseMap[i]
if (w.config.yaxis[yAxisIndex] && this.w.config.yaxis[yAxisIndex].logarithmic) {
let maxY = -Number.MAX_VALUE
let minY = Number.MIN_VALUE
let range = 1
gl.seriesLog.forEach((s, si) => {
s.forEach((v) => {
if (w.config.yaxis[si] && w.config.yaxis[si].logarithmic) {
maxY = Math.max(v, maxY)
minY = Math.min(v, minY)
}
})
})
range = Math.pow(gl.yRange[i], Math.abs(minY - maxY) / gl.yRange[i])
gl.yLogRatio[i] = range / gl.gridHeight
return range
}
})
return gl.invalidLogScale ? yRatio.slice() : gl.yLogRatio
}
// Some config objects can be array - and we need to extend them correctly
static extendArrayProps(configInstance, options, w) {
if (options?.yaxis) {
options = configInstance.extendYAxis(options, w)
}
if (options?.annotations) {
if (options.annotations.yaxis) {
options = configInstance.extendYAxisAnnotations(options)
}
if (options?.annotations?.xaxis) {
options = configInstance.extendXAxisAnnotations(options)
}
if (options?.annotations?.points) {
options = configInstance.extendPointAnnotations(options)
}
}
return options
}
// Series of the same group and type can be stacked together distinct from
// other series of the same type on the same axis.
drawSeriesByGroup(typeSeries, typeGroups, type, chartClass) {
let w = this.w
let graph = []
if (typeSeries.series.length > 0) {
// draw each group separately
typeGroups.forEach((gn) => {
let gs = []
let gi = []
typeSeries.i.forEach((i, ii) => {
if (w.config.series[i].group === gn) {
gs.push(typeSeries.series[ii])
gi.push(i)
}
})
gs.length > 0 && graph.push(chartClass.draw(gs, type, gi))
})
}
return graph
}
}
export default CoreUtils
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