Hi,
I try to visualize a P2 scalar field. I created a '.msh' file including a mesh made of second order triangles and of node data at the mesh vertices and edges (P2 degrees of freedom). It seems that gmsh performs a P1 interpolation by considering only the vertex data. Here is an example on the reference triangle where the vertex values are set to 0 whereas the edge values are set to 1. Running 'gmsh P2.vtk' only displays a blue triangle corresponding to the 0-value.
Is there a way to visualise the P2 funstion without P1 interpolation ? (and to truly see the quadratic function defined in the '.msh' file) ?
If yes is it also possible with higher order data (P3) ? Best regards; Charles PIERRE. ---------------------- $MeshFormat 2.2 0 8 $EndMeshFormat $Nodes 6 1 0.0 0.0 0.0 2 1.0 0.0 0.0 3 0.0 1.0 0.0 4 0.5 0.0 0.0 5 0.5 0.5 0.0 6 0.0 0.5 0.0 $EndNodes $Elements 1 1 9 0 1 2 3 4 5 6 $EndElements $NodeData 1 "Function f" 1 0.0 3 0 1 6 1 0.0 2 0.0 3 0.0 4 1.0 5 1.0 6 1.0 $EndNodeData --- Charles PIERRE Laboratoire de Mathématiques et de leurs Applications de Pau Université de Pau et des Pays de l'Adour, France 05 59 40 75 27 http://cpierre1.perso.univ-pau.fr/
P2.msh
Description: Mesh model
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