@swimlane/ngx-charts
Version:
Declarative Charting Framework for Angular
157 lines • 17.3 kB
JavaScript
import { Component, Input, ChangeDetectionStrategy } from '@angular/core';
import { line } from 'd3-shape';
import { TextAnchor } from '../common/types/text-anchor.enum';
import * as i0 from "@angular/core";
import * as i1 from "@angular/common";
export class GaugeAxisComponent {
constructor() {
this.rotate = '';
}
ngOnChanges(changes) {
this.update();
}
update() {
this.rotationAngle = -90 + this.startAngle;
this.rotate = `rotate(${this.rotationAngle})`;
this.ticks = this.getTicks();
}
getTicks() {
const bigTickSegment = this.angleSpan / this.bigSegments;
const smallTickSegment = bigTickSegment / this.smallSegments;
const tickLength = 20;
const ticks = {
big: [],
small: []
};
const startDistance = this.radius + 10;
const textDist = startDistance + tickLength + 10;
for (let i = 0; i <= this.bigSegments; i++) {
const angleDeg = i * bigTickSegment;
const angle = (angleDeg * Math.PI) / 180;
const textAnchor = this.getTextAnchor(angleDeg);
let skip = false;
if (i === 0 && this.angleSpan === 360) {
skip = true;
}
if (!skip) {
let text = Number.parseFloat(this.valueScale.invert(angleDeg).toString()).toLocaleString();
if (this.tickFormatting) {
text = this.tickFormatting(text);
}
ticks.big.push({
line: this.getTickPath(startDistance, tickLength, angle),
textAnchor,
text,
textTransform: `
translate(${textDist * Math.cos(angle)}, ${textDist * Math.sin(angle)}) rotate(${-this.rotationAngle})
`
});
}
if (i === this.bigSegments) {
continue;
}
for (let j = 1; j <= this.smallSegments; j++) {
const smallAngleDeg = angleDeg + j * smallTickSegment;
const smallAngle = (smallAngleDeg * Math.PI) / 180;
ticks.small.push({
line: this.getTickPath(startDistance, tickLength / 2, smallAngle)
});
}
}
return ticks;
}
getTextAnchor(angle) {
// [0, 45] = 'middle';
// [46, 135] = 'start';
// [136, 225] = 'middle';
// [226, 315] = 'end';
angle = (this.startAngle + angle) % 360;
let textAnchor = TextAnchor.Middle;
if (angle > 45 && angle <= 135) {
textAnchor = TextAnchor.Start;
}
else if (angle > 225 && angle <= 315) {
textAnchor = TextAnchor.End;
}
return textAnchor;
}
getTickPath(startDistance, tickLength, angle) {
const y1 = startDistance * Math.sin(angle);
const y2 = (startDistance + tickLength) * Math.sin(angle);
const x1 = startDistance * Math.cos(angle);
const x2 = (startDistance + tickLength) * Math.cos(angle);
const points = [
{ x: x1, y: y1 },
{ x: x2, y: y2 }
];
const lineGenerator = line()
.x(d => d.x)
.y(d => d.y);
return lineGenerator(points);
}
}
GaugeAxisComponent.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "13.1.0", ngImport: i0, type: GaugeAxisComponent, deps: [], target: i0.ɵɵFactoryTarget.Component });
GaugeAxisComponent.ɵcmp = i0.ɵɵngDeclareComponent({ minVersion: "12.0.0", version: "13.1.0", type: GaugeAxisComponent, selector: "g[ngx-charts-gauge-axis]", inputs: { bigSegments: "bigSegments", smallSegments: "smallSegments", min: "min", max: "max", angleSpan: "angleSpan", startAngle: "startAngle", radius: "radius", valueScale: "valueScale", tickFormatting: "tickFormatting" }, usesOnChanges: true, ngImport: i0, template: `
<svg:g [attr.transform]="rotate">
<svg:g *ngFor="let tick of ticks.big" class="gauge-tick gauge-tick-large">
<svg:path [attr.d]="tick.line" />
</svg:g>
<svg:g *ngFor="let tick of ticks.big" class="gauge-tick gauge-tick-large">
<svg:text
[style.textAnchor]="tick.textAnchor"
[attr.transform]="tick.textTransform"
alignment-baseline="central"
>
{{ tick.text }}
</svg:text>
</svg:g>
<svg:g *ngFor="let tick of ticks.small" class="gauge-tick gauge-tick-small">
<svg:path [attr.d]="tick.line" />
</svg:g>
</svg:g>
`, isInline: true, directives: [{ type: i1.NgForOf, selector: "[ngFor][ngForOf]", inputs: ["ngForOf", "ngForTrackBy", "ngForTemplate"] }], changeDetection: i0.ChangeDetectionStrategy.OnPush });
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "13.1.0", ngImport: i0, type: GaugeAxisComponent, decorators: [{
type: Component,
args: [{
selector: 'g[ngx-charts-gauge-axis]',
template: `
<svg:g [attr.transform]="rotate">
<svg:g *ngFor="let tick of ticks.big" class="gauge-tick gauge-tick-large">
<svg:path [attr.d]="tick.line" />
</svg:g>
<svg:g *ngFor="let tick of ticks.big" class="gauge-tick gauge-tick-large">
<svg:text
[style.textAnchor]="tick.textAnchor"
[attr.transform]="tick.textTransform"
alignment-baseline="central"
>
{{ tick.text }}
</svg:text>
</svg:g>
<svg:g *ngFor="let tick of ticks.small" class="gauge-tick gauge-tick-small">
<svg:path [attr.d]="tick.line" />
</svg:g>
</svg:g>
`,
changeDetection: ChangeDetectionStrategy.OnPush
}]
}], propDecorators: { bigSegments: [{
type: Input
}], smallSegments: [{
type: Input
}], min: [{
type: Input
}], max: [{
type: Input
}], angleSpan: [{
type: Input
}], startAngle: [{
type: Input
}], radius: [{
type: Input
}], valueScale: [{
type: Input
}], tickFormatting: [{
type: Input
}] } });
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{ Component, Input, OnChanges, SimpleChanges, ChangeDetectionStrategy } from '@angular/core';\nimport { line } from 'd3-shape';\nimport { TextAnchor } from '../common/types/text-anchor.enum';\n\ninterface Big {\n  line: string;\n  text: string;\n  textAnchor: string;\n  textTransform: string;\n}\n\ninterface Ticks {\n  big: Big[];\n  small: Array<{ line: string }>;\n}\n\n@Component({\n  selector: 'g[ngx-charts-gauge-axis]',\n  template: `\n    <svg:g [attr.transform]=\"rotate\">\n      <svg:g *ngFor=\"let tick of ticks.big\" class=\"gauge-tick gauge-tick-large\">\n        <svg:path [attr.d]=\"tick.line\" />\n      </svg:g>\n      <svg:g *ngFor=\"let tick of ticks.big\" class=\"gauge-tick gauge-tick-large\">\n        <svg:text\n          [style.textAnchor]=\"tick.textAnchor\"\n          [attr.transform]=\"tick.textTransform\"\n          alignment-baseline=\"central\"\n        >\n          {{ tick.text }}\n        </svg:text>\n      </svg:g>\n      <svg:g *ngFor=\"let tick of ticks.small\" class=\"gauge-tick gauge-tick-small\">\n        <svg:path [attr.d]=\"tick.line\" />\n      </svg:g>\n    </svg:g>\n  `,\n  changeDetection: ChangeDetectionStrategy.OnPush\n})\nexport class GaugeAxisComponent implements OnChanges {\n  @Input() bigSegments: number;\n  @Input() smallSegments: number;\n  @Input() min: number;\n  @Input() max: number;\n  @Input() angleSpan: number;\n  @Input() startAngle: number;\n  @Input() radius: number;\n  @Input() valueScale: any;\n  @Input() tickFormatting: any;\n\n  ticks: Ticks;\n  rotationAngle: number;\n  rotate: string = '';\n\n  ngOnChanges(changes: SimpleChanges) {\n    this.update();\n  }\n\n  update(): void {\n    this.rotationAngle = -90 + this.startAngle;\n    this.rotate = `rotate(${this.rotationAngle})`;\n    this.ticks = this.getTicks();\n  }\n\n  getTicks(): Ticks {\n    const bigTickSegment = this.angleSpan / this.bigSegments;\n    const smallTickSegment = bigTickSegment / this.smallSegments;\n    const tickLength = 20;\n    const ticks = {\n      big: [],\n      small: []\n    };\n\n    const startDistance = this.radius + 10;\n    const textDist = startDistance + tickLength + 10;\n\n    for (let i = 0; i <= this.bigSegments; i++) {\n      const angleDeg = i * bigTickSegment;\n      const angle = (angleDeg * Math.PI) / 180;\n\n      const textAnchor = this.getTextAnchor(angleDeg);\n\n      let skip = false;\n      if (i === 0 && this.angleSpan === 360) {\n        skip = true;\n      }\n\n      if (!skip) {\n        let text = Number.parseFloat(this.valueScale.invert(angleDeg).toString()).toLocaleString();\n        if (this.tickFormatting) {\n          text = this.tickFormatting(text);\n        }\n        ticks.big.push({\n          line: this.getTickPath(startDistance, tickLength, angle),\n          textAnchor,\n          text,\n          textTransform: `\n            translate(${textDist * Math.cos(angle)}, ${textDist * Math.sin(angle)}) rotate(${-this.rotationAngle})\n          `\n        });\n      }\n\n      if (i === this.bigSegments) {\n        continue;\n      }\n\n      for (let j = 1; j <= this.smallSegments; j++) {\n        const smallAngleDeg = angleDeg + j * smallTickSegment;\n        const smallAngle = (smallAngleDeg * Math.PI) / 180;\n\n        ticks.small.push({\n          line: this.getTickPath(startDistance, tickLength / 2, smallAngle)\n        });\n      }\n    }\n\n    return ticks;\n  }\n\n  getTextAnchor(angle: number): TextAnchor {\n    // [0, 45] = 'middle';\n    // [46, 135] = 'start';\n    // [136, 225] = 'middle';\n    // [226, 315] = 'end';\n\n    angle = (this.startAngle + angle) % 360;\n    let textAnchor = TextAnchor.Middle;\n    if (angle > 45 && angle <= 135) {\n      textAnchor = TextAnchor.Start;\n    } else if (angle > 225 && angle <= 315) {\n      textAnchor = TextAnchor.End;\n    }\n    return textAnchor;\n  }\n\n  getTickPath(startDistance: number, tickLength: number, angle: number): any {\n    const y1 = startDistance * Math.sin(angle);\n    const y2 = (startDistance + tickLength) * Math.sin(angle);\n    const x1 = startDistance * Math.cos(angle);\n    const x2 = (startDistance + tickLength) * Math.cos(angle);\n\n    const points = [\n      { x: x1, y: y1 },\n      { x: x2, y: y2 }\n    ];\n    const lineGenerator = line<any>()\n      .x(d => d.x)\n      .y(d => d.y);\n    return lineGenerator(points);\n  }\n}\n"]}