Re: 4x4 matrices in Cairo
Uli Schlachter <[email protected]>
| Newsgroups | gmane.comp.lib.cairo |
|---|---|
| Message-ID | <[email protected]> |
On 13.11.2013 14:15, AD wrote: > Hey guys, > Is there a way to use 4x4 matrices in cairo? No. Cairo has to be able to invert the transformation that it uses and projective transformations aren't always invertible. AFAIK / AFAIR. > Or alternatively a may to decompose a 4x4 matrix into several 3x3 matrices? Nope. I guess you will have to implement this part yourself. You could generate the untransformed image with cairo and then apply the transformation "by hand". > I'm trying to distort an image as in pic attached. [...] Uli -- "Why make things difficult, when it is possible to make them cryptic and totally illogical, with just a little bit more effort?" -- A. P. J. -- cairo mailing list [email protected] http://lists.cairographics.org/mailman/listinfo/cairo