[OpenFOAM] Cubic Line Cell not showing in Paraview?

Woggy · December 6, 2012, 08:32

Hey.

I'm trying to get a cubic line cell (ID = 35) to show up in Paraview. Its not CFD related but I'm sure someone here could help me out.

Here is the VTK file ... it just wont show up! I dont get an error message or anything. Any ideas?

Code:

# vtk DataFile Version 2.0
Unstructured Grid Example
ASCII
DATASET UNSTRUCTURED_GRID

POINTS 4 float
0 0 0
1 0 0
0.333333 0 0
0.666667 0 0

CELLS 1 5
4 0 1 2 3

CELL_TYPES 1
35

POINT_DATA 4
VECTORS translation float
0 0 0 
2.22031e-016 -0.333333 0 
0 -0.154622 0
0 -0.271159 0

VECTORS appliedForces float
0 0 0
0 -1 0
0.0 0.0 0.0
0.0 0.0 0.0

VECTORS reactionForces float
1.39403e-020 1 0 
-1.39403e-020 -1.77636e-015 0 
0.0 0.0 0.0
0.0 0.0 0.0

Edit: Sorry guys, I should have posted this in the general Paraview fourm.

Woggy · December 8, 2012, 21:45

Gee, figured it out :/

For anyone reading this with the same problem, you need a tessellate filter to render the cubic line correctly.

This didn't occur to me at first because a QuadraticEdge cell renders (as two straight lines) without the need for a tessellate filter.

Hope that helps someone.

December 6, 2012, 08:32	Cubic Line Cell not showing in Paraview?	#1
Woggy New Member Join Date: Mar 2011 Posts: 2 Rep Power: 0	Hey. I'm trying to get a cubic line cell (ID = 35) to show up in Paraview. Its not CFD related but I'm sure someone here could help me out. Here is the VTK file ... it just wont show up! I dont get an error message or anything. Any ideas? Code: # vtk DataFile Version 2.0 Unstructured Grid Example ASCII DATASET UNSTRUCTURED_GRID POINTS 4 float 0 0 0 1 0 0 0.333333 0 0 0.666667 0 0 CELLS 1 5 4 0 1 2 3 CELL_TYPES 1 35 POINT_DATA 4 VECTORS translation float 0 0 0 2.22031e-016 -0.333333 0 0 -0.154622 0 0 -0.271159 0 VECTORS appliedForces float 0 0 0 0 -1 0 0.0 0.0 0.0 0.0 0.0 0.0 VECTORS reactionForces float 1.39403e-020 1 0 -1.39403e-020 -1.77636e-015 0 0.0 0.0 0.0 0.0 0.0 0.0 Edit: Sorry guys, I should have posted this in the general Paraview fourm. Last edited by Woggy; December 6, 2012 at 16:41.

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December 8, 2012, 21:45		#2
Woggy New Member Join Date: Mar 2011 Posts: 2 Rep Power: 0	Gee, figured it out :/ For anyone reading this with the same problem, you need a tessellate filter to render the cubic line correctly. This didn't occur to me at first because a QuadraticEdge cell renders (as two straight lines) without the need for a tessellate filter. Hope that helps someone.