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Fix #2538. Contour grooming problem. #2539

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Merged
akenmorris merged 1 commit into from
Apr 15, 2026
+6 −0
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Fix #2538. Contour grooming problem. #2539

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6 changes: 6 additions & 0 deletions Libs/Mesh/MeshUtils.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1120,6 +1120,12 @@ vtkSmartPointer<vtkPolyData> MeshUtils::recreate_mesh(vtkSmartPointer<vtkPolyDat

//---------------------------------------------------------------------------
vtkSmartPointer<vtkPolyData> MeshUtils::repair_mesh(vtkSmartPointer<vtkPolyData> mesh, bool extract_largest) {
// Line-only / vertex-only polydata (e.g. contours) has no polygons to repair;
// the triangulation and cleanup steps below would discard its cells.
if (mesh->GetNumberOfPolys() == 0) {
return mesh;
}

auto triangle_filter = vtkSmartPointer<vtkTriangleFilter>::New();
triangle_filter->SetInputData(mesh);
triangle_filter->PassLinesOff();
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