Re: Problem with Grouping the rotated object.
Re: Problem with Grouping the rotated object.
- Subject: Re: Problem with Grouping the rotated object.
- From: Quincey Morris <email@hidden>
- Date: Wed, 2 Apr 2008 09:02:24 -0700
On Apr 2, 2008, at 04:00, Ghufran Ahamad wrote:
NSAffineTransform* xform = [NSAffineTransform transform];
[currentContext saveGraphicsState];
[NSBezierPath clipRect:drawingBounds];
NSPoint center = NSMakePoint(NSMidX(stRect), NSMidY(stRect));
[xform translateXBy:center.x yBy:center.y];
[xform rotateByDegrees:[curGraphic GetAngle]];
[xform translateXBy:-center.x yBy:-center.y];
[xform concat];
This looks kind of wrong. Mathematically, wouldn't you want:
[xform translateXBy:-center.x yBy:-center.y];
[xform rotateByDegrees:[curGraphic GetAngle]];
[xform translateXBy:center.x yBy:center.y];
?
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