[mgp-users 01386] Re: Limitations in showing png images ?

[nishida@csl.sony.co.jp]

Hi, 

Doing configure with --enable-imlib might be a solution.
Since the png alpha channel support in mgp is trivial.

Thanks,
--
Yoshifumi Nishida
nishida@csl.sony.co.jp


From: Marc Baaden <baaden@smplinux.de>
Subject: [mgp-users 01385] Limitations in showing png images ?
Date: Wed, 26 Jan 2005 23:54:53 +0100
Message-ID: <>

 > Dear All,
 > 
 > Still playing with transparent images, I noticed something
 > strange using images prepared with Gimp and saved as PNG.
 > A nice effect can be obtained for example by dropping a
 > shadow on a transparent graph, eg to highlight text or something.
 > Now when I save this and display the PNG image within mgp, the
 > shadow region, which should be a blurred area of varying opacity
 > is not visible as such. Instead part of it is completely invisible
 > ("transparent") and another part completely black.
 > 
 > My guess is that it has something to do with how mgp handles
 > transparency, right ? Because other programs displaying PNG images
 > don't seem to have this problem.
 > 
 > Can this be fixed or is there a workaround ?
 > 
 > Thanks in advance,
 >   Marc Baaden
 > 
 > 
 > NB: Concerning the previously raised issue with eps file transparency/
 >     antialiasing I tried Terry Browns' tip on defining xdefaults for
 >     ghostscript, but it didn't work :(  (no effect on the aa color)
 > 
 > -- 
 >  Dr. Marc Baaden  - Institut de Biologie Physico-Chimique, Paris
 >  mailto:baaden@smplinux.de      -      http://www.marc-baaden.de
 >  FAX: +33 15841 5026  -  Tel: +33 15841 5176  ou  +33 609 843217
 > 
 >