[Paraview] Mixed Formulation FEM in Paraview

[Teo Ioannis]

I would like to ask if it is possible to display scalar, vector or tensor
values at distinct nodes in a finite element mesh.

To make things clearer, there exist finite element formulations where not
all nodes have the same number of degrees of freedom. Consider the case of
a 20 node hexahedral element. In a so called u-p formulation all 20 nodes
have 3 displacement degrees of freedom (one for each x, y, z axis) but only
the 8 corner nodes have pressure degrees of freedom.

For this particular case, i know how to display the vector of displacements
for all the nodes. But since only the corner nodes of each hexahedron have
pressure degrees of freedom how can I instruct paraview to 'see' that only
these nodes have the pressure scalar values and make the correct color
interpolation?

Thank you very much.
Theofilos Manitaras
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