On 08.07.2010 00:26, Henrik Sperre Johansen wrote:
On 08.07.2010 00:11, Stéphane Ducasse wrote:
Hi
(1...@20) rotateBy: #left centerAt: 0 @0
returns
20@ -10
and my math tells me that this is a rotation to the right.
Am I correct?
Then why I'm wrong? screen coordinates vs. math coordinate?
Stef
You rotate around the center, left is compared to the center -> point
vector, not the other way around.
Cheers,
Henry
... assuming you use screen coordinates of course, starting at top left :)
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