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If VTU reader fails parsing file as XML, try with legacy reader #203

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Merged
tarcila merged 1 commit into from
Jan 26, 2026
Merged

If VTU reader fails parsing file as XML, try with legacy reader #203

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20 changes: 17 additions & 3 deletions tsd/src/tsd/io/importers/import_VTU.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -17,6 +17,7 @@
#include <vtkPointData.h>
#include <vtkSmartPointer.h>
#include <vtkUnstructuredGrid.h>
#include <vtkUnstructuredGridReader.h>
#include <vtkXMLUnstructuredGridReader.h>
#endif
// std
Expand Down Expand Up @@ -47,13 +48,26 @@ static ArrayRef makeFloatArray1D(

SpatialFieldRef import_VTU(Scene &scene, const char *filepath)
{
vtkUnstructuredGrid *grid{nullptr};

// Read .vtu file
vtkSmartPointer<vtkXMLUnstructuredGridReader> reader =
vtkSmartPointer<vtkXMLUnstructuredGridReader>::New();
reader->SetFileName(filepath);
reader->Update();

vtkUnstructuredGrid *grid = reader->GetOutput();
vtkSmartPointer<vtkUnstructuredGridReader> legacyReader =
vtkSmartPointer<vtkUnstructuredGridReader>::New();

if (reader->CanReadFile(filepath)) {
reader->SetFileName(filepath);
reader->Update();
grid = reader->GetOutput();
} else {
// legacy reader has no CanReadFile
legacyReader->SetFileName(filepath);
legacyReader->Update();
grid = legacyReader->GetOutput();
}

if (!grid) {
logError("[import_VTU] failed to load .vtu file '%s'", filepath);
return {};
Expand Down