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fix ellipse picking

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This commit is contained in:
Val Erastov 2016-11-30 02:29:02 -08:00
parent 16063c9f56
commit 0dc159eb1f
1 changed files with 2 additions and 2 deletions
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4
web/app/sketcher/shapes/ellipse.js
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@ -45,7 +45,7 @@ export class Ellipse extends SketchObject {
toEllipseCoordinateSystem(point) {
let x = point.x - this.centerX;
let y = point.y - this.centerY;
const angle = Math.atan2(y, x) - this.rotation;
const angle = Math.atan2(y, x) + this.rotation;
const distance = math.distance(0, 0, x, y);
x = distance * Math.cos(angle);
y = distance * Math.sin(angle);
@ -55,7 +55,7 @@ export class Ellipse extends SketchObject {
normalDistance(aim) {
const trInfo = this.toEllipseCoordinateSystem(aim);
const sq = (a) => a * a;
const L = Math.sqrt(1/( sq(Math.sin(trInfo.angle)/this.radiusX) + sq(Math.cos(trInfo.angle)/this.radiusY)));
const L = Math.sqrt(1/( sq(Math.cos(trInfo.angle)/this.radiusX) + sq(Math.sin(trInfo.angle)/this.radiusY)));
return Math.abs(trInfo.distance - L);
}
}