// // 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; }