Ah, the list config got me ... (resending to list) 2010/8/10 Benjamin Root <ben.r...@ou.edu>: > I am working on a function that can take a Colormap object and return a > grayscale form of it. Ideally, I would like to return the same type of > Colormap that was provided, but I am wondering if this is necessary. I > supposed it is sufficient to just create a LinearSegmentedColormap from the > self._lut data? > > The problem I see with that approach is that there is still possibly some > information loss, particularly with the alpha part of the rgba data. > LinearSegmentedColormap has a .from_list() function, but it uses only the > rgb part of the rgba array and does not take alpha data. > > Is the inability of setting alpha a problem? Or maybe I should use > deepcopy() instead?
If you mean me, I really don't know, but I think it is always better to do things properly than to publish something done with the attitute "just working" .... So I think it is probably best to code it into the Colormap object itself, so that each and ever derived class can define its own method of how to create a greyscale version. What do you think about that? Friedrich ------------------------------------------------------------------------------ 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
