I haven't had a look at Fisicalab yet, but something which may or may not be related is the artifacting I get in GSTest/ImageSelection-test. It happens when moving the sliders to adjust the image size; the image can leave lines as it's being resized, but the same code works fine on OS X.
The artifacting seems to to come from calling [aView setNeedsDisplayInRect:] with a non-integral rect. I suspect at some point the rect coordinates are being floor()'ed, which would be incorrect. If we mark a (possibly non-integral) region of a view as needing to be redrawn, at some point we'll need to compute a pixel aligned version that completely encloses the original rect. -Eric On 2011-09-05, at 3:47 AM, Fred Kiefer wrote: > On 05.09.2011 02:26, Germán Arias wrote: >> Currently when I select an element in FisicaLab an ugly lines appears. >> See attached image. I'm using cairo backend. > > I tried to reproduce this behaviour with Fisicalab 0.2.1 and current SVN > GNUstep code and failed to get these artefacts. I am using the cairo backend > as well. > > Could you please give some more details on how to reproduce this? > > _______________________________________________ > Gnustep-dev mailing list > [email protected] > https://lists.gnu.org/mailman/listinfo/gnustep-dev _______________________________________________ Gnustep-dev mailing list [email protected] https://lists.gnu.org/mailman/listinfo/gnustep-dev
