chartwerk
/
line-pod
4
0
Fork 0
Code Issues 31 Pull Requests 1 Projects Releases 1 Wiki Activity
Browse Source

my panning

some-tests
vargburz 2 years ago
parent
88074bc683
commit
9aa94a104c
1 changed files with 51 additions and 495 deletions
Whitespace
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Split View
Diff Options
Show Stats Download Patch File Download Diff File
  1. 546
      src/index.ts

546
src/index.ts
Unescape View File

@ -9,520 +9,76 @@ const CROSSHAIR_CIRCLE_RADIUS = 3;
const CROSSHAIR_BACKGROUND_RAIDUS = 9;
const CROSSHAIR_BACKGROUND_OPACITY = 0.3;
export class LinePod extends ChartwerkPod<LineTimeSerie, LineOptions> {
lineGenerator = null;
areaGenerator = null;
export class LinePod {
protected d3Node?: d3.Selection<HTMLElement, unknown, null, undefined>;
protected svg?: d3.Selection<SVGElement, unknown, null, undefined>;
protected chartContainer: d3.Selection<SVGGElement, unknown, null, undefined>;
protected customOverlay?: d3.Selection<SVGRectElement, unknown, null, undefined>;
constructor(_el: HTMLElement, _series: LineTimeSerie[] = [], _options: LineOptions = {}) {
super(_el, _series, _options);
constructor(
protected readonly el: HTMLElement,
protected series: any[] = [],
protected options: any
){
this.d3Node = d3.select(this.el);
this.createSvg();
this.renderCustomOverlay();
this.bindEvents();
}
renderMetrics(): void {
this.clearAllMetrics();
this.updateCrosshair();
this.initLineGenerator();
this.initAreaGenerator();
// TODO: seems that renderMetrics is not correct name
if(this.series.length === 0) {
this.renderNoDataPointsMessage();
return;
}
for(let idx = 0; idx < this.series.length; ++idx) {
if(this.series[idx].visible === false) {
continue;
}
// TODO: use _.defaults same as in core
const confidence = this.series[idx].confidence || 0;
const mode = this.series[idx].mode || Mode.STANDARD;
const target = this.series[idx].target;
const renderDots = this.series[idx].renderDots !== undefined ? this.series[idx].renderDots : false;
const renderLines = this.series[idx].renderLines !== undefined ? this.series[idx].renderLines : true;
this._renderMetric(
this.series[idx].datapoints,
{
color: this.getSerieColor(idx),
confidence,
target,
mode,
serieIdx: idx,
renderDots,
renderLines,
}
);
}
protected createSvg(): void {
this.d3Node.select('svg').remove();
this.svg = this.d3Node
.append('svg')
.style('width', '100%')
.style('height', '100%')
.style('backface-visibility', 'hidden');
this.chartContainer = this.svg
.append('g')
.attr('transform', `translate(${0},${0})`);
}
clearAllMetrics(): void {
// TODO: temporary hack before it will be implemented in core.
this.chartContainer.selectAll('.metric-el').remove();
renderCustomOverlay(): void {
this.customOverlay = this.chartContainer.append('rect')
.attr('class', 'custom-overlay')
.attr('width', this.width)
.attr('height', this.height)
.attr('x', 0)
.attr('y', 0)
.attr('pointer-events', 'all')
.attr('cursor', 'crosshair')
.attr('draggable', 'true')
.attr('fill', 'lightgray');
}
initLineGenerator(): void {
this.lineGenerator = d3.line()
.x(d => this.xScale(d[0]))
.y(d => this.yScale(d[1]));
bindEvents(): void {
this.customOverlay.on('mousedown', this.mouseDown);
this.customOverlay.on('mousemove', this.mouseMove);
this.customOverlay.on('mouseup', this.mouseUp);
}
initAreaGenerator(): void {
this.areaGenerator = d3.area()
.x(d => this.xScale(d[0]))
.y1(d => this.yScale(d[1]))
.y0(d => this.height);
mouseMove(event, i, j) {
console.log('move', d3.event);
}
getRenderGenerator(serieIdx: number): any {
const renderArea = this.series[serieIdx].renderArea;
if(renderArea) {
return this.areaGenerator;
}
return this.lineGenerator;
mouseDown(event, i, j) {
console.log('mouseDown', d3.event);
}
public appendData(data: [number, number][], shouldRerender = true): void {
for(let idx = 0; idx < this.series.length; ++idx) {
if(this.series[idx].visible === false) {
continue;
}
this.series[idx].datapoints.push(data[idx]);
const maxLength = this.series[idx].maxLength;
if(maxLength !== undefined && this.series[idx].datapoints.length > maxLength) {
this.series[idx].datapoints.shift();
}
}
for(let idx = 0; idx < this.series.length; ++idx) {
this.metricContainer.select(`.metric-path-${idx}`)
.datum(this.series[idx].datapoints)
.attr('d', this.getRenderGenerator(idx));
if(this.series[idx].renderDots === true) {
this.metricContainer.selectAll(`.metric-circle-${idx}`)
.data(this.series[idx].datapoints)
.attr('cx', d => this.xScale(d[0]))
.attr('cy', d => this.yScale(d[1]));
this._renderDots([data[idx]], idx);
}
}
if(shouldRerender) {
const rightBorder = _.last(data)[0];
this.state.xValueRange = [this.state.getMinValueX(), rightBorder];
this.renderXAxis();
this.renderYAxis();
this.renderGrid();
}
mouseUp(event, i, j) {
console.log('mouseUp', d3.event);
}
_renderDots(datapoints: number[][], serieIdx: number): void {
const customClass = this.series[serieIdx].class || '';
this.metricContainer.selectAll(null)
.data(datapoints)
.enter()
.append('circle')
.attr('class', `metric-circle-${serieIdx} metric-el ${customClass}`)
.attr('fill', this.getSerieColor(serieIdx))
.attr('r', METRIC_CIRCLE_RADIUS)
.style('pointer-events', 'none')
.attr('cx', d => this.xScale(d[0]))
.attr('cy', d => this.yScale(d[1]));
wheel() {
console.log('wheel', d3.event);
}
_renderLines(datapoints: number[][], serieIdx: number): void {
const dashArray = this.series[serieIdx].dashArray !== undefined ? this.series[serieIdx].dashArray : '0';
const customClass = this.series[serieIdx].class || '';
const fillColor = this.series[serieIdx].renderArea ? this.getSerieColor(serieIdx) : 'none';
const fillOpacity = this.series[serieIdx].renderArea ? 0.5 : 'none';
this.metricContainer
.append('path')
.datum(datapoints)
.attr('class', `metric-path-${serieIdx} metric-el ${customClass}`)
.attr('fill', fillColor)
.attr('fill-opacity', fillOpacity)
.attr('stroke', this.getSerieColor(serieIdx))
.attr('stroke-width', 1)
.attr('stroke-opacity', 0.7)
.attr('pointer-events', 'none')
.style('stroke-dasharray', dashArray)
.attr('d', this.getRenderGenerator(serieIdx));
get width(): number {
return this.d3Node.node().clientWidth;
}
_renderMetric(
datapoints: number[][],
metricOptions: {
color: string,
confidence: number,
target: string,
mode: Mode,
serieIdx: number,
renderDots: boolean,
renderLines: boolean,
}
): void {
if(_.includes(this.seriesTargetsWithBounds, metricOptions.target)) {
return;
}
if(metricOptions.mode === Mode.CHARGE) {
const dataPairs = d3.pairs(datapoints);
this.metricContainer.selectAll(null)
.data(dataPairs)
.enter()
.append('line')
.attr('x1', d => this.xScale(d[0][0]))
.attr('x2', d => this.xScale(d[1][0]))
.attr('y1', d => this.yScale(d[0][1]))
.attr('y2', d => this.yScale(d[1][1]))
.attr('stroke-opacity', 0.7)
.style('stroke-width', 1)
.style('stroke', d => {
if(d[1][0] > d[0][0]) {
return 'green';
} else if (d[1][0] < d[0][0]) {
return 'red';
} else {
return 'gray';
}
});
return;
}
if(metricOptions.renderLines === true) {
this._renderLines(datapoints, metricOptions.serieIdx);
}
if(metricOptions.renderDots === true) {
this._renderDots(datapoints, metricOptions.serieIdx);
}
}
updateCrosshair(): void {
this.crosshair.selectAll('circle').remove();
// Core doesn't know anything about crosshair circles, It is only for line pod
this.appendCrosshairCircles();
}
appendCrosshairCircles(): void {
// circle for each serie
this.series.forEach((serie: LineTimeSerie, serieIdx: number) => {
this.appendCrosshairCircle(serieIdx);
});
}
appendCrosshairCircle(serieIdx: number): void {
// TODO: cx, cy - hacks to hide circles after zoom out(can be replaced with display: none)
this.crosshair.append('circle')
.attr('class', `crosshair-circle-${serieIdx} crosshair-background`)
.attr('r', CROSSHAIR_BACKGROUND_RAIDUS)
.attr('cx', -CROSSHAIR_BACKGROUND_RAIDUS)
.attr('cy', -CROSSHAIR_BACKGROUND_RAIDUS)
.attr('clip-path', `url(#${this.rectClipId})`)
.attr('fill', this.getSerieColor(serieIdx))
.style('opacity', CROSSHAIR_BACKGROUND_OPACITY)
.style('pointer-events', 'none');
this.crosshair
.append('circle')
.attr('cx', -CROSSHAIR_CIRCLE_RADIUS)
.attr('cy', -CROSSHAIR_CIRCLE_RADIUS)
.attr('class', `crosshair-circle-${serieIdx}`)
.attr('clip-path', `url(#${this.rectClipId})`)
.attr('fill', this.getSerieColor(serieIdx))
.attr('r', CROSSHAIR_CIRCLE_RADIUS)
.style('pointer-events', 'none');
}
public renderSharedCrosshair(values: { x?: number, y?: number }): void {
this.onMouseOver(); // TODO: refactor to use it once
const eventX = this.xScale(values.x);
const eventY = this.yScale(values.y);
this.moveCrosshairLine(eventX, eventY);
const datapoints = this.findAndHighlightDatapoints(values.x, values.y);
if(this.options.eventsCallbacks === undefined || this.options.eventsCallbacks.sharedCrosshairMove === undefined) {
return;
}
this.options.eventsCallbacks.sharedCrosshairMove({
datapoints: datapoints,
eventX, eventY
});
}
public hideSharedCrosshair(): void {
this.crosshair.style('display', 'none');
}
moveCrosshairLine(xPosition: number, yPosition: number): void {
switch(this.options.crosshair.orientation) {
case CrosshairOrientation.VERTICAL:
this.crosshair.select('#crosshair-line-x')
.attr('x1', xPosition)
.attr('x2', xPosition);
return;
case CrosshairOrientation.HORIZONTAL:
this.crosshair.select('#crosshair-line-y')
.attr('y1', yPosition)
.attr('y2', yPosition);
return;
case CrosshairOrientation.BOTH:
this.crosshair.select('#crosshair-line-x')
.attr('x1', xPosition)
.attr('x2', xPosition);
this.crosshair.select('#crosshair-line-y')
.attr('y1', yPosition)
.attr('y2', yPosition);
return;
default:
throw new Error(`Unknown type of crosshair orientaion: ${this.options.crosshair.orientation}`);
}
}
moveCrosshairCircle(xPosition: number, yPosition: number, serieIdx: number): void {
this.crosshair.selectAll(`.crosshair-circle-${serieIdx}`)
.attr('cx', xPosition)
.attr('cy', yPosition)
.style('display', null);
}
hideCrosshairCircle(serieIdx: number): void {
// hide circle for singe serie
this.crosshair.selectAll(`.crosshair-circle-${serieIdx}`)
.style('display', 'none');
}
getClosestDatapoint(serie: LineTimeSerie, xValue: number, yValue: number): [number, number] {
// get closest datapoint to the "xValue"/"yValue" in the "serie"
const datapoints = serie.datapoints;
const closestIdx = this.getClosestIndex(datapoints, xValue, yValue);
const datapoint = serie.datapoints[closestIdx];
return datapoint;
}
getClosestIndex(datapoints: [number, number][], xValue: number, yValue: number): number {
let columnIdx; // 0 for x value, 1 for y value,
let value; // xValue to y Value
switch(this.options.crosshair.orientation) {
case CrosshairOrientation.VERTICAL:
columnIdx = 0;
value = xValue;
break;
case CrosshairOrientation.HORIZONTAL:
columnIdx = 1;
value = yValue;
break;
case CrosshairOrientation.BOTH:
// TODO: maybe use voronoi
columnIdx = 1;
value = yValue;
default:
throw new Error(`Unknown type of crosshair orientaion: ${this.options.crosshair.orientation}`);
}
// TODO: d3.bisect is not the best way. Use binary search
const bisectIndex = d3.bisector((d: [number, number]) => d[columnIdx]).left;
let closestIdx = bisectIndex(datapoints, value);
// TODO: refactor corner cases
if(closestIdx < 0) {
return 0;
}
if(closestIdx >= datapoints.length) {
return datapoints.length - 1;
}
// TODO: do we realy need it? Binary search should fix it
if(
closestIdx > 0 &&
Math.abs(value - datapoints[closestIdx - 1][columnIdx]) <
Math.abs(value - datapoints[closestIdx][columnIdx])
) {
closestIdx -= 1;
}
return closestIdx;
}
getValueInterval(columnIdx: number): number | undefined {
// columnIdx: 1 for y, 0 for x
// inverval: x/y value interval between data points
// TODO: move it to base/state instead of timeInterval
const intervals = _.map(this.series, serie => {
if(serie.datapoints.length < 2) {
return undefined;
}
const start = _.head(serie.datapoints)[columnIdx];
const end = _.last(serie.datapoints)[columnIdx];
const range = Math.abs(end - start);
const interval = range / (serie.datapoints.length - 1);
return interval;
});
return _.max(intervals);
}
onMouseMove(): void {
const eventX = d3.mouse(this.chartContainer.node())[0];
const eventY = d3.mouse(this.chartContainer.node())[1];
const xValue = this.xScale.invert(eventX); // mouse x position in xScale
const yValue = this.yScale.invert(eventY);
// TODO: isOutOfChart is a hack, use clip path correctly
if(this.isOutOfChart() === true) {
this.crosshair.style('display', 'none');
return;
}
this.moveCrosshairLine(eventX, eventY);
const datapoints = this.findAndHighlightDatapoints(xValue, yValue);
if(this.options.eventsCallbacks === undefined || this.options.eventsCallbacks.mouseMove === undefined) {
return;
}
// TDOO: is shift key pressed
// TODO: need to refactor this object
this.options.eventsCallbacks.mouseMove({
x: d3.event.pageX,
y: d3.event.pageY,
xVal: xValue,
yVal: yValue,
series: datapoints,
chartX: eventX,
chartWidth: this.width
});
}
findAndHighlightDatapoints(xValue: number, yValue: number): { value: [number, number], color: string, label: string }[] {
if(this.series === undefined || this.series.length === 0) {
return [];
}
let points = []; // datapoints in each metric that is closest to xValue/yValue position
this.series.forEach((serie: LineTimeSerie, serieIdx: number) => {
if(
serie.visible === false ||
_.includes(this.seriesTargetsWithBounds, serie.target)
) {
this.hideCrosshairCircle(serieIdx);
return;
}
const closestDatapoint = this.getClosestDatapoint(serie, xValue, yValue);
if(closestDatapoint === undefined || this.isOutOfRange(closestDatapoint, xValue, yValue, serie.useOutOfRange)) {
this.hideCrosshairCircle(serieIdx);
return;
}
const xPosition = this.xScale(closestDatapoint[0]);
const yPosition = this.yScale(closestDatapoint[1]);
this.moveCrosshairCircle(xPosition, yPosition, serieIdx);
points.push({
value: closestDatapoint,
color: this.getSerieColor(serieIdx),
label: serie.alias || serie.target
});
});
return points;
}
isOutOfRange(closestDatapoint: [number, number], xValue: number, yValue: number, useOutOfRange = true): boolean {
// find is mouse position more than xRange/yRange from closest point
// TODO: refactor getValueInterval to remove this!
if(useOutOfRange === false) {
return false;
}
let columnIdx; // 1 for y value, 0 for x value
let value; // xValue ot y Value
switch(this.options.crosshair.orientation) {
case CrosshairOrientation.VERTICAL:
columnIdx = 0;
value = xValue;
break;
case CrosshairOrientation.HORIZONTAL:
columnIdx = 1;
value = yValue;
break;
case CrosshairOrientation.BOTH:
// TODO: maybe use voronoi
columnIdx = 1;
value = yValue;
default:
throw new Error(`Unknown type of crosshair orientaion: ${this.options.crosshair.orientation}`);
}
const range = Math.abs(closestDatapoint[columnIdx] - value);
const interval = this.getValueInterval(columnIdx); // interval between points
// do not move crosshair circles, it mouse to far from closest point
return interval === undefined || range > interval / 2;
}
onMouseOver(): void {
this.crosshair.style('display', null);
this.crosshair.selectAll('.crosshair-circle')
.style('display', null);
}
onMouseOut(): void {
if(this.options.eventsCallbacks !== undefined && this.options.eventsCallbacks.mouseOut !== undefined) {
this.options.eventsCallbacks.mouseOut();
}
this.crosshair.style('display', 'none');
}
isDoubleClickActive(): boolean {
if(this.options.zoomEvents.mouse.doubleClick === undefined) {
return false;
}
return this.options.zoomEvents.mouse.doubleClick.isActive;
}
// methods below rewrite cores, (move more methods here)
protected zoomOut(): void {
// TODO: test to remove, seems its depricated
if(this.isOutOfChart() === true) {
return;
}
if(d3.event.type === 'dblclick' && !this.isDoubleClickActive()) {
return;
}
// TODO: its not clear, why we use this orientation here. Mb its better to use separate option
const orientation: BrushOrientation = this.options.zoomEvents.mouse.zoom.orientation;
const xInterval = this.state.xValueRange[1] - this.state.xValueRange[0];
const yInterval = this.state.yValueRange[1] - this.state.yValueRange[0];
switch(orientation) {
case BrushOrientation.HORIZONTAL:
this.state.xValueRange = [this.state.xValueRange[0] - xInterval / 2, this.state.xValueRange[1] + xInterval / 2];
break;
case BrushOrientation.VERTICAL:
this.state.yValueRange = [this.state.yValueRange[0] - yInterval / 2, this.state.yValueRange[1] + yInterval / 2];
break;
case BrushOrientation.RECTANGLE:
this.state.xValueRange = [this.state.xValueRange[0] - xInterval / 2, this.state.xValueRange[1] + xInterval / 2];
this.state.yValueRange = [this.state.yValueRange[0] - yInterval / 2, this.state.yValueRange[1] + yInterval / 2];
break;
case BrushOrientation.SQUARE:
this.state.xValueRange = [this.state.xValueRange[0] - xInterval / 2, this.state.xValueRange[1] + xInterval / 2];
this.state.yValueRange = [this.state.yValueRange[0] - yInterval / 2, this.state.yValueRange[1] + yInterval / 2];
break;
default:
throw new Error(`Unknown type of orientation: ${orientation}, path: options.zoomEvents.mouse.zoom.orientation`);;
}
// TODO: it shouldn't be here. Add smth like vue watchers in core components. Optimize!
this.renderMetrics();
this.renderXAxis();
this.renderYAxis();
this.renderGrid();
this.onMouseOver();
if(this.options.eventsCallbacks !== undefined && this.options.eventsCallbacks.zoomOut !== undefined) {
let xAxisMiddleValue: number = this.xScale.invert(this.width / 2);
let yAxisMiddleValue: number = this.yScale.invert(this.height / 2);
const centers = {
x: xAxisMiddleValue,
y: yAxisMiddleValue
}
this.options.eventsCallbacks.zoomOut(centers);
}
get height(): number {
return this.d3Node.node().clientHeight;
}
}

Write Preview
Loading…
Cancel
Save