Cell Center Filter Doesn't Update During Time Stepping
Cell Centers filter applied to time-dependent cell data does not update for a different grid geometry. Tested on ParaView 5.8.1-1220-g186faf45 using macOS 10.15.6.
- Load attached
cell_center_noupdate.xdmf2and load all data.
- Color by
Iand advance in time. The cell geometry updates correctly and the coloring also updates correctly. That is, timestep 0 has a 3x3x1 grid and timestep 1 has a 3x3x2 grid.
- Go to timestep 0.
Cell Centersfilter, choose 3D Glyphs representation. 3x3 arrows oriented along the $x$ axis should be visible (perhaps colored by
I). This is correct.
- Advance in time.
As a result of advancing in time, I've seen freezes, crashes, or the wrong number of misoriented vectors.
One can also go to timestep 1, apply
Cell Centers, glyphs, etc., and observe the vectors correctly but then moving to timestep 0 causes issues (generally displaying six glyphs of various shading including NaN values).
- My interest is in applying this to vector data; however, for simplicity scalar data is used here. The same sorts of behavior occurs for vector data.
- The "Vertex Cells" toggle in the
Cell Centersfilter appears to have no effect on this (mis)behavior.
- Avoiding the
Cell Centersfilter and explicitly creating a grid with the correct number/position of nodes does update correctly, which is what leads me to believe this is a
Cell Centersfilter issue.
Unclassified per ADC:jmc