[Gmsh] Post processing higher oder triangles in GMSH

[Christophe Geuzaine]

Here's what I get here (don't forget to activate "Adapt visualisation grid" in the options:



> On 19 Apr 2018, at 10:49, Emayavaramban Elango <emayavaramban.elango at eleves.ec-nantes.fr> wrote:
> 
> Dear Gmsh,
> 
> I am trying to post-process the plate element solution. The plate element that I am using has three dofs per node (w , - dw/dx , dw/dy ).  But gmsh does not support writing angular displacement of a node in .POS file. To effectively visualize the plate, I wanted to interpolate the w (displacement) on midside nodes (3,4,5 for Triangle). But when I tried a sample .pos file having w_displacement only on midside nodes, it doesn't seem to be working.it shows zero displacement all over the element. I pasted the .pos file below. Please advise me to rectify this problem. 
> 
> $PostFormat 
> 1.4 0 8 
> $EndPostFormat 
> $View 
> Triangle_n 1 
> 0 0 0 
> 0 0 0 
> 0 0 0 
> 0 0 0 
> 0 0 0 
> 0 0 0 
> 0 0 0 
> 0 0 0 
> 0 0 0 
> 0 1 0 
> 0 0 0 
> 0 0 0 
> 0 0 0 
> 0 0 0 
> 0 0 0 
> 0 0 0 0 
> 1 
> 0.000000 1.000000 0.000000 0.500000 0.500000 0.000000     
> 0.000000 0.000000 1.000000 0.000000 0.500000 0.500000    
> 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000    
> 0.000000 0.000000 0.000000 
> 0.000000 0.000000 0.000000 
> 0.000000 0.000000 0.000000 
> 0.000000 0.000000 1.000000 
> 0.000000 0.000000 1.000000 
> 0.000000 0.000000 1.000000    
> $EndView
> 
> 
> Any help would be greatly appreciated
> 
> regards
> Emayavaramban Elango
> 
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