I don’t think this is possible. You should postprocess the image in an Image Manipulation Program (e.g. `gimp`). However, you can automatize the procedure if you install the `Imagemagick` toolset. It comes with the `convert` utility.
On the command line, simply run convert -transparent white in.png out.png Otherwise, you can try to use the `pgf` output<http://geuz.org/pipermail/gmsh/2014/008927.html>, which does this internally (but only if `convert` is found). From: gmsh [mailto:[email protected]] On Behalf Of Alexis PACHOLIK Sent: 23 June, 2014 16:45 To: [email protected] Subject: [Gmsh] Transparent background Hello, I'd like to know if there is a way to have a transparent background when I save a .msh under a .png file. I went through the options, but even when I don't use General.Color.Background, my png has a white background. Have you any idea? Thanks a lot and best regards, Alexis -- Alexis PACHOLIK +33(0) 605 001 471 2ème Année Cycle Ingénieur Option Calcul et Modélisation Scientifiques Institut Supérieur d'Informatique, de Modélisation et de leurs Applications University Blaise Pascal, Aubière, France
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