[Paraview] Rotational Degrees of Freedom

2015-03-04 Thread Teo Ioannis
In many applications particularly engineering ones, structural finite
elements are used such as beams and shells. In the case of beams, in
addition to degrees of freedom representing translations there exist
rotational degrees of freedom. Is there a way to make paraview 'recognize'
these rotational degrees of freedom so that it's able to produce a correct
deformed shape visualization?

Thank you for your help.

Manitaras Theofilos
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[Paraview] Help with 'Plot Selection Over Time' Filter

2015-01-08 Thread Teo Ioannis
I am having the following problem with paraview. I have a .pvd which refers
to 6000-8000 .vtu files one for each time step. Each .vtu file contains
information for a finite element mesh consisting of 4-5 nodes in 3
dimensions and contains vector values for displacement , velocity and
acceleration. I load the .pvd file andi nteract with the model or watch the
animation and everything is fine. The problem starts when I select a
certain node and choose 'plot selection over time'  filter. The moment I
press 'Apply' in the pipeline browser, paraview becomes unresponsive and I
have to wait for about 5 minutes for the chart to appear. My pc has 16gb of
ram and an i7 4970k cpu so I don't think that the problem is lack of
resources . Am I doing something wrong? If show can you give me a hint
where to look for a faster solution (a python script maybe) or is this kind
of performance normal for my case?

Thank you very much.

Manitaras Theofilos
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[Paraview] Mixed Formulation FEM in Paraview

2014-12-09 Thread 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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