RemoveVertices
VTKExamples/Cxx/PolyData/RemoveVertices
Code
RemoveVertices.cxx
#include <vtkVersion.h>
#include <vtkXMLPolyDataReader.h>
#include <vtkXMLPolyDataWriter.h>
#include <vtkSmartPointer.h>
#include <vtkCellData.h>
#include <vtkCellArray.h>
#include <vtkPolyData.h>
int main ( int argc, char *argv[] )
{
if (argc < 2)
{
std::cout << "Usage: " << argv[0] << " filename.vtp" << std::endl;
return EXIT_FAILURE;
}
std::string filename = argv[1];
// Read all the data from the file
vtkSmartPointer<vtkXMLPolyDataReader> reader = vtkSmartPointer<vtkXMLPolyDataReader>::New();
reader->SetFileName(filename.c_str());
reader->Update();
vtkSmartPointer<vtkPolyData> output = vtkSmartPointer<vtkPolyData>::New();
output->ShallowCopy(reader->GetOutput());
//output->SetVerts(NULL);
vtkSmartPointer<vtkCellArray> verts = vtkSmartPointer<vtkCellArray>::New();
output->SetVerts(verts);
//output->SetPoints(reader->GetOutput()->GetPoints());
//output->SetPolys(reader->GetOutput()->GetPolys());
vtkSmartPointer<vtkXMLPolyDataWriter> writer = vtkSmartPointer<vtkXMLPolyDataWriter>::New();
writer->SetFileName("test.vtp");
#if VTK_MAJOR_VERSION <= 5
writer->SetInput(output);
#else
writer->SetInputData(output);
#endif
writer->Write();
return EXIT_SUCCESS;
}
CMakeLists.txt
cmake_minimum_required(VERSION 2.8)
PROJECT(RemoveVertices)
find_package(VTK REQUIRED)
include(${VTK_USE_FILE})
add_executable(RemoveVertices MACOSX_BUNDLE RemoveVertices.cxx)
target_link_libraries(RemoveVertices ${VTK_LIBRARIES})
Download and Build RemoveVertices
Click here to download RemoveVertices and its CMakeLists.txt file. Once the tarball RemoveVertices.tar has been downloaded and extracted,
cd RemoveVertices/build
If VTK is installed:
cmake ..
If VTK is not installed but compiled on your system, you will need to specify the path to your VTK build:
cmake -DVTK_DIR:PATH=/home/me/vtk_build ..
Build the project:
make
and run it:
./RemoveVertices
WINDOWS USERS PLEASE NOTE: Be sure to add the VTK bin directory to your path. This will resolve the VTK dll's at run time.