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//
// Delaunay3D
// Usage: Delaunay3D InputFile(.vtp) OutputFile(.vtu)
// where
// InputFile is an XML PolyData file with extension .vtp
// OutputFile is an XML Unstructured Grid file with extension .vtu
//
#include <vtkSmartPointer.h>
#include <vtkCleanPolyData.h>
#include <vtkDelaunay3D.h>
#include <vtkXMLDataSetWriter.h>
#include <vtkXMLPolyDataReader.h>
int main ( int argc, char *argv[] )
{
if (argc != 3)
{
cout << "Usage: " << argv[0]
<< " InputPolyDataFile OutputDataSetFile" << endl;
return EXIT_FAILURE;
}
//Read the file
vtkSmartPointer<vtkXMLPolyDataReader> reader =
vtkSmartPointer<vtkXMLPolyDataReader>::New();
reader->SetFileName (argv[1]);
// Clean the polydata. This will remove duplicate points that may be
// present in the input data.
vtkSmartPointer<vtkCleanPolyData> cleaner =
vtkSmartPointer<vtkCleanPolyData>::New();
cleaner->SetInputConnection (reader->GetOutputPort());
// Generate a tetrahedral mesh from the input points. By
// default, the generated volume is the convex hull of the points.
vtkSmartPointer<vtkDelaunay3D> delaunay3D =
vtkSmartPointer<vtkDelaunay3D>::New();
delaunay3D->SetInputConnection (cleaner->GetOutputPort());
// Write the mesh as an unstructured grid
vtkSmartPointer<vtkXMLDataSetWriter> writer =
vtkSmartPointer<vtkXMLDataSetWriter>::New();
writer->SetFileName ( argv[2] );
writer->SetInputConnection ( delaunay3D->GetOutputPort() );
writer->Write();
return EXIT_SUCCESS;
}
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