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Merge rotateAround() and rotate().

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This commit is contained in:
Jürg Lehni 2011-02-21 00:28:13 +01:00
parent 2ebe4a18da
commit dc410b6894
1 changed files with 7 additions and 10 deletions
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17
src/basic/Point.js
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@ -188,20 +188,17 @@ var Point = Base.extend({
}
},
rotate: function(angle) {
// TODO: Add center parameter support back to Scriptographer
rotate: function(angle, center) {
var point = center ? this.subtract(center) : this;
angle = angle * Math.PI / 180;
var s = Math.sin(angle);
var c = Math.cos(angle);
return Point.create(
this.x * c - this.y * s,
this.y * c + this.x * s
point = Point.create(
point.x * c - point.y * s,
point.y * c + point.x * s
);
},
// TODO: Shouldn't center just be the optional 2nd argument to rotate()?
rotateAround: function(angle, center) {
center = new Point(center);
return this.subtract(center).rotate(angle).add(this);
return center ? point.add(center) : point;
},
interpolate: function(point, t) {