On 08/13/2010 12:30 PM, Benjamin Root wrote: > [...] > > Notice that both stroke and fill are checking for alpha != 0.0. > > > Yeah, well, try out my attached script. Then view the two files. > Something is wrong...
I think I have that fixed now, along with a temporary fix for the original "none" problem. The better fix for the latter, involving to_rgb_array, can be done in the trunk. The handling of alpha, and colors in general, is still confusing, providing abundant hiding places for bugs and opportunities for inefficiency. I hope that over time we can clarify and codify it. For example, in some cases in the backends, the alpha value of an rgba does serve as a flag; in other cases, it is simply ignored, and the flag value is python None. As far as I can see, at least for a Patch, one can explicitly set different alpha for the outline and for the face, but the backends can't render them that way. I don't see any reason why we can't fix that, but it would take some backend work. It might be fairly simple to factor it out into a pre_draw_path() that would call the backend separately for the edge and for the face if they have different alpha values, but could use the present single call otherwise. I suspect this could simplify the backends, relieving them of some of the checking they are doing now. Eric > > Ben Root ------------------------------------------------------------------------------ This SF.net email is sponsored by Make an app they can't live without Enter the BlackBerry Developer Challenge http://p.sf.net/sfu/RIM-dev2dev _______________________________________________ Matplotlib-devel mailing list Matplotlib-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-devel
