[Gmsh] eps file output with gmsh

[Christophe Geuzaine]

Andre Nicolet wrote:
> Hi,
> 
> I use the eps (or ps) output of gmsh to produce some image of a "filled 
> isovalue map" to include it in a LaTeX document... Unfortunately, a 
> persisting "ghost" triangulation (see the attached file) makes the image 
> quite dirty (I noticed it a long time ago with the secret hope that it 
> would disappear with further releases but it didn't...)! I tried several 
> variants without success, it only disappeared with the "raster" mode but 
> at the price of an unacceptable loss of quality! Is this intrinsic to 
> PostScript (I can not believe it) or a bug (maybe numerical inaccuracies 
> during the conversion computations...)?
> 

Hello Andre - This is actually only due to the fact that most PostScript
previewers nowadays antialias the graphic primitives when they display
the page on screen. (In gv, you can disable antialiasing with the
'State->Antialias' menu.)

You should *not* see this ghost triangulation in the printed output (on
paper).

Best,

Christophe

-- 
Christophe Geuzaine
Applied and Computational Mathematics, Caltech
geuzaine at acm.caltech.edu - http://geuz.org