[Gmsh] Plot differences

[Christophe Geuzaine]

On 06 Nov 2012, at 10:32, Torquil Macdonald Sørensen <torquil at gmail.com> wrote:

> Hi!
> 
> I'm currently using Gmsh to get surface plots of real valued functions on a mesh on the unit square (z-value of surface is proportional to function value). Is it possible to tell Gmsh to show the difference between two such functions, so that I can easily see if they are equal by visually inspecting if the difference vanishes?
> 

I would use Plugin(MathEval) or Plugin(ModifyComponent)

> I'm using Gmsh 2.6.1 on Redhat Enterprise Linux 6.3.
> 
> Best regards
> Torquil Sørensen
> 
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-- 
Prof. Christophe Geuzaine
University of Liege, Electrical Engineering and Computer Science 
http://www.montefiore.ulg.ac.be/~geuzaine