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import { PerformanceDataItem } from '@reflex/shared-types';
import * as d3 from 'd3';
@Component({
selector: 'app-performance-visualization',
templateUrl: './performance-visualization.component.html',
styleUrls: ['./performance-visualization.component.scss']
})
export class PerformanceVisualizationComponent implements OnChanges {
@ViewChild('panel')
public d3Panel!: ElementRef;
public readonly data = input<Array<PerformanceDataItem>>([]);
public readonly groups = input<Array<string>>([]);
public readonly visId = input('defaultVis');
public readonly refreshRate = input(10);
public readonly numSamples = input(200);
public readonly isProcessingGraph = input(false);
public width = 200;
public height = 150;
private showTooltip = false;
private mousePosition = 0;
private updateIdx = 0;
private average = 0;
public ngOnChanges(): void {
this.updateIdx++;
Iif (this.updateIdx % this.refreshRate() !== 0) {
return;
}
// skip changes accroding to refresh rate
this.updateIdx = 0;
const entries = this.data().length;
const isProcessingGraph = this.isProcessingGraph();
if (isProcessingGraph) {
// const prep = this.data.map((item) => item.processingPreparation ?? 0).reduce((prev, curr) => prev + curr, 0) / entries;
// const upd = this.data.map((item) => item.processingUpdate ?? 0).reduce((prev, curr) => prev + curr, 0) / entries;
// const conv = this.data.map((item) => item.processingConvert ?? 0).reduce((prev, curr) => prev + curr, 0) / entries;
// const smooth = this.data.map((item) => item.processingSmoothing ?? 0).reduce((prev, curr) => prev + curr, 0) / entries;
// const extr = this.data.map((item) => item.processingExtremum ?? 0).reduce((prev, curr) => prev + curr, 0) / entries;
this.average = entries > 0
? this.data().map((item) => item.totalProcessing ?? 0).reduce((prev, curr) => prev + curr, 0) / entries
: 0;
} else {
this.average = entries > 0
? this.data().map((item) => item.totalFilter ?? 0).reduce((prev, curr) => prev + curr, 0) / entries
: 0;
}
d3.selectAll(`#${this.visId()} > *`).remove();
this.width = this.d3Panel.nativeElement.clientWidth;
this.height = this.d3Panel.nativeElement.clientHeight;
const svg = d3.select(`#${this.visId()}`)
.append('svg')
.attr('viewBox', [0, 0, this.width, this.height])
.attr('id', `${this.visId()}_svg`)
.attr('width', this.width)
.attr('height', this.height)
.style('-webkit-tap-highlight-color', 'transparent')
.style('overflow', 'visible')
.on('pointerenter pointermove', (event: Event) => this.pointermoved(event))
.on('pointerleave', () => this.pointerleft())
.on('touchstart', (event) => event.preventDefault());
const colors = ['#002338', '#225473', '#005b94', '#0071B7', '#3f99d1'];
const stackedData = d3.stack<PerformanceDataItem>().keys(this.groups())(this.data());
// Add X axis --> scale to number of samples
const x = d3.scaleLinear()
.domain([0, this.numSamples()])
.range([0, this.width]);
const y = d3.scaleLinear()
.range([this.height, 0])
.domain([0, d3.max(this.data(), (d) => this.isProcessingGraph() ? d.totalProcessing : d.totalFilter) ?? 100]);
svg.append('g')
.call(d3.axisLeft(y).ticks(5))
.call((g) => g.select('.domain').remove())
.call((g) => g.selectAll('.tick line').clone()
.attr('x2', this.width)
.attr('stroke-opacity', 0.2));
const area = d3.area()
.x((d, i) => x(i))
.y0((d) => y(d[0]))
.y1((d) => y(d[1]));
// Show the areas
const valueGroups = svg.selectAll('.valgroup')
.data(stackedData)
.enter()
.append('g')
.attr('class', 'valgroup')
.style('fill', (d, i) => colors[i]);
// @ts-ignore
valueGroups.append('path').attr('d', (d) => area(d));
const yAvg = y(this.average);
// draw average line
svg.append('g')
.append('line')
.attr('stroke', '#aaa')
.attr('stroke-dasharray', '8 4')
.attr('x1', x(0))
.attr('y1', yAvg)
.attr('x2', x(this.numSamples()))
.attr('y2', yAvg);
// darw background for average label
const avgBg = svg.append('rect')
.attr('width', x(0.15 * this.numSamples()))
.attr('height', 20)
.attr('x', x(0.85 * this.numSamples()))
.attr('y', 0)
.attr('fill', '#ffffff66');
// draw averabe label
const avgText = svg.append('g')
.append('text')
.call((text) => text
.append('tspan')
.data([`${this.average.toFixed(2)} ms`])
.append('tspan')
.attr('x', 0)
.attr('y', (n, i) => `${i * 1.1}em`)
.attr('font-weight', (n, i) => i ? null : 'bold')
.text((d) => d));
avgText.attr('transform', `translate(${x(0.9 * this.numSamples())},${yAvg - 12})`);
avgBg.attr('transform', `translate(${0},${yAvg - 25})`);
Iif (this.showTooltip) {
// const bisect = d3.bisector((d: PerformanceDataItem) => d.frameId).center;
const i = Math.round(x.invert(this.mousePosition));
Iif (i >= this.data().length) {
return;
}
// const i = bisect(this.data, x.invert(this.mousePosition));
// Create the tooltip container.
const tooltip = svg.append('g');
tooltip.style('display', null);
const yValue = isProcessingGraph ? this.data()[i].totalProcessing ?? 0 : this.data()[i].totalFilter ?? 0;
const posX = x(i);
const posY = y(yValue);
tooltip.attr('transform', `translate(${posX},${posY})`);
const path = tooltip.selectAll('path')
.join('path')
.attr('fill', '#ffffffaa')
.attr('stroke', 'black');
const text = tooltip.selectAll('text')
.join('text')
.call((tooltiptext) => tooltiptext
.selectAll('tspan')
.data(['Total: ', `${yValue.toFixed(2)} ms`])
.join('tspan')
.attr('x', 0)
.attr('y', (n, ttidx) => `${ttidx * 1.1}em`)
.attr('font-weight', (n, ttidx) => ttidx ? null : 'bold')
.text((d) => d));
const ttWidth = 50;
const ttHeight = 25;
// move the text upwards
text.attr('transform', `translate(${-ttWidth / 2},${-ttHeight - 5})`);
// draw the box
path.attr('d', `M${(-ttWidth / 2) - 10},-5H-5l5,5l5,-5H${(ttWidth / 2) + 10}v${-ttHeight - 20}h-${ttWidth + 20}z`);
}
}
private pointermoved(event: Event): void {
this.showTooltip = true;
this.mousePosition = d3.pointer(event)[0];
}
private pointerleft(): void {
this.showTooltip = false;
}
}
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