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46 lines
1.2 KiB
46 lines
1.2 KiB
4 weeks ago
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import { __extends } from "tslib";
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import Path from '../Path.js';
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var PI = Math.PI;
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var sin = Math.sin;
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var cos = Math.cos;
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var IsogonShape = (function () {
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function IsogonShape() {
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this.x = 0;
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this.y = 0;
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this.r = 0;
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this.n = 0;
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}
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return IsogonShape;
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}());
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export { IsogonShape };
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var Isogon = (function (_super) {
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__extends(Isogon, _super);
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function Isogon(opts) {
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return _super.call(this, opts) || this;
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}
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Isogon.prototype.getDefaultShape = function () {
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return new IsogonShape();
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};
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Isogon.prototype.buildPath = function (ctx, shape) {
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var n = shape.n;
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if (!n || n < 2) {
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return;
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}
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var x = shape.x;
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var y = shape.y;
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var r = shape.r;
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var dStep = 2 * PI / n;
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var deg = -PI / 2;
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ctx.moveTo(x + r * cos(deg), y + r * sin(deg));
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for (var i = 0, end = n - 1; i < end; i++) {
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deg += dStep;
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ctx.lineTo(x + r * cos(deg), y + r * sin(deg));
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}
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ctx.closePath();
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return;
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};
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return Isogon;
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}(Path));
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Isogon.prototype.type = 'isogon';
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export default Isogon;
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