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import * as d3 from "d3"
type VGElement = d3.Selection<SVGSVGElement, unknown, HTMLElement, any>
type GElement = d3.Selection<SVGGElement, unknown, HTMLElement, any>
type Scale = d3.ScaleLinear<number, number>
@Component({
selector: "cc-metric-color-range-diagram",
templateUrl: "./metricColorRangeDiagram.component.html",
styleUrls: ["./metricColorRangeDiagram.component.scss"],
standalone: true
})
export class MetricColorRangeDiagramComponent implements OnChanges {
@Input() minValue: number
@Input() maxValue: number
@Input() colorMetric: string
@Input() values: number[]
@Input() currentLeftValue: number
@Input() currentRightValue: number
@Input() leftColor: string
@Input() middleColor: string
@Input() rightColor: string
@Input() isAttributeDirectionInversed: boolean
private frameWidth: number
private frameBuffer: number
private frameHeight: number
private diagramWidth: number
private diagramHeight: number
private marginTop: number
private marginBottom: number
private marginLeft: number
private marginRight: number
private yLabelYOffset: number
private percentileRanks: { x: number; y: number }[]
ngOnChanges() {
if (this.values.length > 0) {
this.percentileRanks = this.isAttributeDirectionInversed
? this.calculateReversedPercentileRanks(this.values)
: this.calculatePercentileRanks(this.values)
this.renderDiagram()
}
}
private renderDiagram() {
this.initializeDiagramDimesions()
this.clearDiagramContainer()
const svg = this.createSvg()
const group = this.createGroup(svg)
const x = this.createXScale()
const y = this.createYScale()
this.drawAxes(group, x, y)
this.drawFrame(group)
this.drawLabels(group)
this.drawAreas(group, x)
this.drawLine(group)
}
private initializeDiagramDimesions() {
this.frameWidth = 296
this.frameBuffer = 10
this.frameHeight = 80
this.marginTop = 10
this.marginBottom = 10
this.marginLeft = 66
this.marginRight = 54
this.diagramWidth = this.frameWidth - this.marginLeft - this.marginRight
this.diagramHeight = this.frameHeight - this.marginTop - this.marginBottom
this.yLabelYOffset = -47
}
private clearDiagramContainer() {
d3.select("#cc-range-diagram-container").selectAll("*").remove()
}
private createSvg() {
return d3.select("#cc-range-diagram-container").append("svg")
}
private createGroup(svg: VGElement) {
return svg.append("g").attr("transform", `translate(${this.marginLeft}, ${this.marginTop})`)
}
private drawFrame(g: GElement) {
g.append("path")
.attr(
"d",
`M ${-this.frameBuffer} ${-this.frameBuffer} h${this.diagramWidth + 2 * this.frameBuffer} v${
this.diagramHeight + 2 * this.frameBuffer
} h${-this.diagramWidth - 2 * this.frameBuffer} v${-this.diagramHeight - 2 * this.frameBuffer}`
)
.attr("fill", "none")
.attr("stroke", "#888")
.attr("stroke-width", "1px")
}
private drawAxes(g: GElement, x: Scale, y: Scale) {
g.append("g")
.attr("id", "axis-x")
.attr("transform", `translate(0,${this.diagramHeight + this.frameBuffer})`)
.call(d3.axisBottom(x).ticks(5))
.attr("color", "#888")
g.append("g")
.attr("id", "axis-y")
.attr("transform", `translate(${-this.frameBuffer}, 0)`)
.call(
d3
.axisLeft(y)
.ticks(5)
.tickFormat(function (d) {
return (d as number) >= 10_000
? `${d3.format(".0f")((d as number) / 1000)}k`
: (d as number) >= 1000
? `${d3.format(".1f")((d as number) / 1000)}k`
: d.toString()
})
)
.attr("color", "#888")
}
private createXScale() {
return d3
.scaleLinear()
.domain(d3.extent(this.percentileRanks, d => d["x"] as number))
.range([0, this.diagramWidth])
}
private createYScale() {
const domainStandard = [0, d3.max(this.percentileRanks, d => d["y"] as number)]
const domainInversed = [d3.max(this.percentileRanks, d => d["y"] as number), 0]
return d3
.scaleLinear()
.domain(this.isAttributeDirectionInversed ? domainInversed : domainStandard)
.range([this.diagramHeight, 0])
}
private drawLabels(g: GElement) {
const pathStartY = -this.frameBuffer
const pathHeight = this.diagramHeight + 2 * this.frameBuffer
const verticalCenter = pathStartY + pathHeight / 2
g.append("text")
.attr("id", "y-label")
.attr("class", "y label")
.attr("transform", `rotate(-90)`)
.attr("x", -verticalCenter)
.attr("y", this.yLabelYOffset)
.attr("text-anchor", "middle")
.attr("fill", "#888")
.text(`${this.colorMetric}`)
g.append("text")
.attr("id", "x-label")
.attr("class", "x label")
.attr("text-anchor", "middle")
.attr("x", this.diagramWidth / 2)
.attr("y", this.diagramHeight + this.marginTop + this.marginBottom + 2 * this.frameBuffer)
.attr("fill", "#888")
.text(`Quantiles (% of ${this.colorMetric})`)
}
private drawAreas(g: GElement, x: Scale) {
const leftValue = x(
this.isAttributeDirectionInversed
? this.calculateReversedPercentileFromMetricValue(this.currentRightValue)
: this.calculatePercentileFromMetricValue(this.currentLeftValue)
)
const rightValue = x(
this.isAttributeDirectionInversed
? this.calculateReversedPercentileFromMetricValue(this.currentLeftValue)
: this.calculatePercentileFromMetricValue(this.currentRightValue)
)
g.append("rect")
.attr("class", "left-area")
.attr("x", 0)
.attr("y", -this.frameBuffer)
.attr("width", leftValue)
.attr("height", this.diagramHeight + 2 * this.frameBuffer)
.style("fill", this.isAttributeDirectionInversed ? this.rightColor : this.leftColor)
.style("fill-opacity", "0.3")
g.append("rect")
.attr("class", "middle-area")
.attr("x", leftValue)
.attr("y", -this.frameBuffer)
.attr("width", rightValue - leftValue)
.attr("height", this.diagramHeight + 2 * this.frameBuffer)
.style("fill", this.middleColor)
.style("fill-opacity", "0.3")
g.append("rect")
.attr("class", "right-area")
.attr("x", rightValue)
.attr("y", -this.frameBuffer)
.attr("width", this.diagramWidth - rightValue)
.attr("height", this.diagramHeight + 2 * this.frameBuffer)
.style("fill", this.isAttributeDirectionInversed ? this.leftColor : this.rightColor)
.style("fill-opacity", "0.3")
}
private drawLine(g: GElement) {
g.append("path")
.attr("id", "diagram-path")
.datum(this.percentileRanks)
.attr("fill", "none")
.attr("stroke", "#888")
.attr("stroke-width", 1)
.attr(
"d",
d3
.line<{ x: number; y: number }>()
.curve(d3.curveStepBefore)
.x(d => this.createXScale()(d["x"]))
.y(d => this.createYScale()(d["y"]))
)
}
private calculatePercentileRanks(array: number[]) {
const uniqueSortedNumbers = [...new Set(array)].sort((a, b) => a - b)
const totalNumbers = array.length
const percentileRanks = [{ x: 0, y: uniqueSortedNumbers[0] }]
for (const value of uniqueSortedNumbers) {
const countLessThanOrEqualToUniqueNumber = array.filter(number_ => number_ <= value).length
const percentileRank = (countLessThanOrEqualToUniqueNumber / totalNumbers) * 100
percentileRanks.push({ x: percentileRank, y: value })
}
return percentileRanks
}
private calculateReversedPercentileRanks(array: number[]) {
const uniqueSortedNumbers = [...new Set(array)].sort((a, b) => a - b).reverse()
const totalNumbers = array.length
const percentileRanks = [{ x: 0, y: uniqueSortedNumbers[0] }]
for (const value of uniqueSortedNumbers) {
const countGreaterThanOrEqualToUniqueNumber = array.filter(number_ => number_ >= value).length
const percentileRank = (countGreaterThanOrEqualToUniqueNumber / totalNumbers) * 100
percentileRanks.push({ x: percentileRank, y: value })
}
return percentileRanks.sort((a, b) => a.x - b.x)
}
private calculatePercentileFromMetricValue(metricValue: number) {
if (metricValue === this.minValue) {
return 0
}
if (metricValue === this.maxValue) {
return 100
}
let maxPercentile = null
for (const percentileRank of this.percentileRanks) {
if (percentileRank["y"] < metricValue) {
maxPercentile = percentileRank["x"]
} else {
return maxPercentile
}
}
}
private calculateReversedPercentileFromMetricValue(metricValue: number) {
Iif (metricValue === this.maxValue) {
return 0
}
Iif (metricValue === this.minValue) {
return 100
}
let minPercentile = null
for (const percentileRank of this.percentileRanks) {
if (percentileRank["y"] > metricValue) {
minPercentile = percentileRank["x"]
} else {
return minPercentile
}
}
}
}
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