Re: Rotate NSString... I give up :(
Re: Rotate NSString... I give up :(
- Subject: Re: Rotate NSString... I give up :(
- From: Graham Cox <email@hidden>
- Date: Thu, 7 Aug 2008 09:16:04 +1000
Bear in mind you are moving the co-ordinate system to the object, not
the object around the co-ordinate system...
I find it useful to "read" NSAffineTransform operations in reverse
order. The operations you list in the code are applied to the object
in the opposite order.
cheers, Graham
On 6 Aug 2008, at 6:46 pm, Vitaly Ovchinnikov wrote:
Will test this too, but I don't think it will work.
In my case I moved rectangle from it's real position to zero, then
rotate around zero and then moved back.
In your case I will move it far from zero and then rotate...
But I will give it a try.
On Wed, Aug 6, 2008 at 11:20 AM, Jean-Daniel Dupas
<email@hidden> wrote:
Shouldn't be this instead (check the translations' signs) ?
[tr translateXBy:dx yBy:dy]; // center or rect will be the center of
rotation
[tr rotateByDegrees:90]; // rotate it
[tr translateXBy:-dx yBy:-dy]; // move it back
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