72 lines
1.9 KiB
JavaScript
72 lines
1.9 KiB
JavaScript
import { __extends } from "tslib";
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import Path from '../Path.js';
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var cos = Math.cos;
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var sin = Math.sin;
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var TrochoidShape = (function () {
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function TrochoidShape() {
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this.cx = 0;
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this.cy = 0;
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this.r = 0;
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this.r0 = 0;
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this.d = 0;
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this.location = 'out';
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}
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return TrochoidShape;
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}());
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export { TrochoidShape };
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var Trochoid = (function (_super) {
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__extends(Trochoid, _super);
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function Trochoid(opts) {
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return _super.call(this, opts) || this;
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}
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Trochoid.prototype.getDefaultStyle = function () {
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return {
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stroke: '#000',
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fill: null
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};
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};
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Trochoid.prototype.getDefaultShape = function () {
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return new TrochoidShape();
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};
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Trochoid.prototype.buildPath = function (ctx, shape) {
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var R = shape.r;
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var r = shape.r0;
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var d = shape.d;
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var offsetX = shape.cx;
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var offsetY = shape.cy;
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var delta = shape.location === 'out' ? 1 : -1;
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var x1;
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var y1;
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var x2;
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var y2;
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if (shape.location && R <= r) {
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return;
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}
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var num = 0;
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var i = 1;
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var theta;
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x1 = (R + delta * r) * cos(0)
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- delta * d * cos(0) + offsetX;
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y1 = (R + delta * r) * sin(0)
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- d * sin(0) + offsetY;
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ctx.moveTo(x1, y1);
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do {
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num++;
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} while ((r * num) % (R + delta * r) !== 0);
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do {
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theta = Math.PI / 180 * i;
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x2 = (R + delta * r) * cos(theta)
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- delta * d * cos((R / r + delta) * theta)
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+ offsetX;
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y2 = (R + delta * r) * sin(theta)
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- d * sin((R / r + delta) * theta)
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+ offsetY;
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ctx.lineTo(x2, y2);
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i++;
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} while (i <= (r * num) / (R + delta * r) * 360);
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};
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return Trochoid;
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}(Path));
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Trochoid.prototype.type = 'trochoid';
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export default Trochoid;
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