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44 lines
1.2 KiB
44 lines
1.2 KiB
'use strict';
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import NodeBase from '../util/NodeBase'
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class Ellipse extends NodeBase {
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constructor(options, body, labelModule) {
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super(options, body, labelModule);
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}
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resize(ctx, selected = this.selected, hover = this.hover) {
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if (this.needsRefresh(selected, hover)) {
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var textSize = this.labelModule.getTextSize(ctx, selected, hover);
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this.height = textSize.height * 2;
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this.width = textSize.width + this.height;
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this.radius = 0.5*this.width;
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}
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}
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draw(ctx, x, y, selected, hover, values) {
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this.resize(ctx, selected, hover);
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this.left = x - this.width * 0.5;
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this.top = y - this.height * 0.5;
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this.initContextForDraw(ctx, values);
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ctx.ellipse_vis(this.left, this.top, this.width, this.height);
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this.performFill(ctx, values);
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this.updateBoundingBox(x, y, ctx, selected, hover);
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this.labelModule.draw(ctx, x, y, selected, hover);
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}
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distanceToBorder(ctx, angle) {
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this.resize(ctx);
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var a = this.width * 0.5;
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var b = this.height * 0.5;
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var w = (Math.sin(angle) * a);
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var h = (Math.cos(angle) * b);
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return a * b / Math.sqrt(w * w + h * h);
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}
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}
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export default Ellipse;
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