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



_______________________________________________
Pharo-project mailing list
[email protected]
http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project

Reply via email to