/usr/share/vtk/Modelling/Cxx/Delaunay3DAlpha.cxx is in vtk-examples 5.8.0-17.5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 | #include <vtkSmartPointer.h>
#include <vtkCleanPolyData.h>
#include <vtkDelaunay3D.h>
#include <vtkXMLDataSetWriter.h>
#include <vtkXMLPolyDataReader.h>
int main ( int argc, char *argv[] )
{
if (argc != 4)
{
cout << "Usage: " << argv[0]
<< " Alpha InputPolyDataFile OutputDataSetFile" << endl;
return EXIT_FAILURE;
}
//Read a file
vtkSmartPointer<vtkXMLPolyDataReader> reader =
vtkSmartPointer<vtkXMLPolyDataReader>::New();
reader->SetFileName (argv[2]);
// 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 mesh from the input points. If Alpha is non-zero, then
// tetrahedra, triangles, edges and vertices that lie within the
// alpha radius are output.
vtkSmartPointer<vtkDelaunay3D> delaunay3D =
vtkSmartPointer<vtkDelaunay3D>::New();
delaunay3D->SetInputConnection (cleaner->GetOutputPort());
delaunay3D->SetAlpha(atof(argv[1]));
// Output the mesh
vtkSmartPointer<vtkXMLDataSetWriter> writer =
vtkSmartPointer<vtkXMLDataSetWriter>::New();
writer->SetFileName ( argv[3] );
writer->SetInputConnection ( delaunay3D->GetOutputPort() );
writer->Write();
return EXIT_SUCCESS;
}
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