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Fix issues with _angle caching in Point.

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This commit is contained in:
Jürg Lehni 2011-02-13 16:24:39 +00:00
parent 0ac19a8e82
commit 4f4261488e
1 changed files with 4 additions and 5 deletions
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9
src/basic/Point.js
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@ -11,17 +11,14 @@ var Point = Base.extend({
} else if(first.x !== undefined) {
this.x = first.x;
this.y = first.y;
this._angle = first.angle;
} else if(first.width !== undefined) {
this.x = first.width;
this.y = first.height;
this._angle = null;
} else if(first.length !== undefined) {
this.x = first[0];
this.y = first.length > 1 ? first[1] : first[0];
} else if(typeof first === 'number') {
this.x = this.y = first;
this._angle = null;
} else {
this.x = this.y = 0;
}
@ -166,7 +163,9 @@ var Point = Base.extend({
angle = Math.acos(this.dot(point) / div);
}
} else {
angle = this._angle = Math.atan2(this.y, this.x);
if (this._angle == null)
this._angle = Math.atan2(this.y, this.x);
angle = this._angle;
}
return angle * 180 / Math.PI;
},
@ -298,4 +297,4 @@ var Point = Base.extend({
return new Point(Math.random(), Math.random());
}
}
});
});