CODEWITHSUNDEEP
polygonparaview
user2260180
user2260180

Reputation: 275

Paraview with polydata

Trying to plot a "cylinder" (modification of the paraview->source->alphabetical->cylinder) but can not figure out why is not the last polygon (end cap) plotted. enter image description here # vtk DataFile Version 5.1 vtk output ASCII DATASET POLYDATA POINTS 16 float 0.5 0.5 0 0.353553 0.5 -0.353553 0. 0.5 -0.5 -0.353553 0.5 -0.353553 -0.5 0.5 0. -0.353553 0.5 0.353553 0. 0.5 0.5 0.353553 0.5 0.353553 0.353553 -0.5 0.353553 0. -0.5 0.5 -0.353553 -0.5 0.353553 -0.5 -0.5 0. -0.353553 -0.5 -0.353553 0. -0.5 -0.5 0.353553 -0.5 -0.353553 0.5 -0.5 0 POLYGONS 10 48 OFFSETS vtktypeint64 0 8 12 16 20 24 28 32 36 40
CONNECTIVITY vtktypeint64 0 1 2 3 4 5 6 7 0 15 14 1
1 14 13 2
2 13 12 3
3 12 11 4
4 11 10 5
5 10 9 6
6 9 8 7
7 8 15 0
8 9 10 11 12 13 14 15

Upvotes: 0

Views: 449

Answers (1)

Nico Vuaille
Nico Vuaille

Reputation: 2498

Your file is not correctly formatted to define the last polygonal face.

You should add the last point index in the OFFSETS list and thus increment the number of indices declared in POLYGONS. See here:

POLYGONS 11 48
OFFSETS vtktypeint64
0 8 12 16 20 24 28 32 36 40 48

The full correct file:

# vtk DataFile Version 5.1
vtk output 
ASCII
DATASET POLYDATA
POINTS 16 float
0.5 0.5 0
0.353553 0.5 -0.353553
0. 0.5 -0.5
-0.353553 0.5 -0.353553
-0.5 0.5 0.
-0.353553 0.5 0.353553
0. 0.5 0.5
0.353553 0.5 0.353553
0.353553 -0.5 0.353553
0. -0.5 0.5
-0.353553 -0.5 0.353553
-0.5 -0.5 0.
-0.353553 -0.5 -0.353553
0. -0.5 -0.5
0.353553 -0.5 -0.353553
0.5 -0.5 0

POLYGONS 11 48
OFFSETS vtktypeint64
0 8 12 16 20 24 28 32 36 40 48
CONNECTIVITY vtktypeint64
0 1 2 3 4 5 6 7
0 15 14 1
1 14 13 2
2 13 12 3
3 12 11 4
4 11 10 5
5 10 9 6
6 9 8 7
7 8 15 0
8 9 10 11 12 13 14 15

Upvotes: 1

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