RemoveIsolatedVertices
VTKExamples/Cxx/Graphs/RemoveIsolatedVertices
Code¶
RemoveIsolatedVertices.cxx
#include <vtkSmartPointer.h> #include <vtkMutableUndirectedGraph.h> #include <vtkPoints.h> #include <vtkRemoveIsolatedVertices.h> int main(int, char *[]) { vtkSmartPointer<vtkMutableUndirectedGraph> g = vtkSmartPointer<vtkMutableUndirectedGraph>::New(); // Create 3 vertices vtkIdType v1 = g->AddVertex(); vtkIdType v2 = g->AddVertex(); g->AddVertex(); g->AddEdge ( v1, v2 ); std::cout << "Graph has " << g->GetNumberOfVertices() << " vertices and " << g->GetNumberOfEdges() << " edge before." << std::endl; vtkSmartPointer<vtkRemoveIsolatedVertices> filter = vtkSmartPointer<vtkRemoveIsolatedVertices>::New(); filter->SetInputConnection(g->GetProducerPort()); filter->Update(); std::cout << "Graph has " << filter->GetOutput()->GetNumberOfVertices() << " vertices and " << filter->GetOutput()->GetNumberOfEdges() << " edge after." << std::endl; return EXIT_SUCCESS; }
CMakeLists.txt¶
cmake_minimum_required(VERSION 2.8) PROJECT(RemoveIsolatedVertices) find_package(VTK REQUIRED) include(${VTK_USE_FILE}) add_executable(RemoveIsolatedVertices MACOSX_BUNDLE RemoveIsolatedVertices.cxx) target_link_libraries(RemoveIsolatedVertices ${VTK_LIBRARIES})
Download and Build RemoveIsolatedVertices¶
Danger
The generation of tar files has not been ported to the new VTKExamples. Some tarballs may be missing or out-of-date.
Click here to download RemoveIsolatedVertices and its CMakeLists.txt file. Once the tarball RemoveIsolatedVertices.tar has been downloaded and extracted,
cd RemoveIsolatedVertices/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:
./RemoveIsolatedVertices
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.