[Scilab-users] GIF with transparent color

[Samuel Gougeon]

Le 04/11/2013 17:01, SCHULZ Wolfgang a écrit :
> Hello,
> I'm creating contour plots and it would be nice to have certain regions (colors) of a GIF file transparent.
By the way, as far as i know, GIF and PNG allow to define only /one/ 
transparent color.
So, if you want several regions of distinct colors of the same plot 
being transparent,
PNG and GIF would not allow that. I don't know any other common image 
formats
able to do that.
If you are looking for transparency of the foreground in order to see 
the figure's background
instead of the image's one, tricks given by Christophe and Antoine will 
certainly work.

In the end, you may have a look at /help pixel_drawing_mode/ . This 
feature for instance
used to help plotting stacked objects without hidding stacked parts.
But Scilab 5.4 has killed it : 
http://bugzilla.scilab.org/show_bug.cgi?id=12017

Best regards
Samuel

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