Hi Frank, On 31/05/2017 21:36, Frank Muldoon wrote:
I have been working with a developer at Tecplot concerning development of a reader for VTU files and have provided him with a number of VTU files generated by PyFR. He informs me that the data in these files is missing connectivity information and hence each cell is an island unto itself and is unaware of the existence of any neighbor cells. As a result post-processing and visualization of the data is greatly degraded. For instance construction of isosurfaces is extremely poor (see attached picture). Could the developers comment on this issue?
PyFR does not include connectivity information inside of our VTU files. This is partly a consequence of the fact that our solutions are inherently discontinuous; at certain points in space we can have multiple solution values from adjoining elements.
The need for connectivity information appears to be a Tecplot related quirk. ParaView has no trouble with processing the VTU files without any connectivity information (and, can to an extent reconstruct it if needed using the clean to grid filter).
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