@visactor/vrender-core/es/graphic/builtin-symbol/wedge.js

## Description

import { BaseSymbol } from "./base";

export function wedge(ctx, r, transX, transY) {
    const h = 2 * r;
    return ctx.moveTo(transX, -r + transY), ctx.lineTo(h / 3 / 2 + transX, r + transY), 
    ctx.lineTo(-h / 3 / 2 + transX, r + transY), ctx.closePath(), !0;
}

export class WedgeSymbol extends BaseSymbol {
    constructor() {
        super(...arguments), this.type = "wedge", this.pathStr = "M0,-0.5773502691896257L-0.125,0.28867513459481287L0.125,0.28867513459481287Z";
    }
    draw(ctx, size, transX, transY) {
        return wedge(ctx, this.parseSize(size) / 2, transX, transY);
    }
    drawOffset(ctx, size, transX, transY, offset) {
        return wedge(ctx, this.parseSize(size) / 2 + offset, transX, transY);
    }
}

export default new WedgeSymbol;
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