Conversation
refs libMesh#4555 VTKIO::read() now handles VTK_POLYHEDRON cells, which VTK describes by a face stream rather than an ordered node list. Each such cell is built as a C0Polyhedron from C0Polygon faces (obtained via vtkUnstructuredGrid::GetFaceStream), mirroring the Exodus NFACED reader; the interior mid-element node the C0Polyhedron construction may create is added to the mesh. Adds a testVTKReadPolyhedra unit test that reads a hexagonal-prism polyhedron .vtu fixture and checks the element type, side and face connectivity. Co-Authored-By: Claude <noreply@anthropic.com>
GiudGiud
marked this pull request as ready for review
September 17, 2026 13:29
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
2 participants
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
refs #4555
did not do polygons
VTKIO::read() now handles VTK_POLYHEDRON cells, which VTK describes by a face stream rather than an ordered node list. Each such cell is built as a C0Polyhedron from C0Polygon faces (obtained via
vtkUnstructuredGrid::GetFaceStream), mirroring the Exodus NFACED reader; the interior mid-element node the C0Polyhedron construction may create is added to the mesh.
Adds a testVTKReadPolyhedra unit test that reads a hexagonal-prism polyhedron .vtu fixture and checks the element type, side and face connectivity.