GraphPoints
VTKExamples/Cxx/InfoVis/GraphPoints
Code¶
GraphPoints.cxx
#include <vtkMutableUndirectedGraph.h> #include <vtkPoints.h> #include <vtkSmartPointer.h> #include <vtkGraphLayoutView.h> #include <vtkRenderWindowInteractor.h> int main(int, char *[]) { vtkSmartPointer<vtkMutableUndirectedGraph> g = vtkSmartPointer<vtkMutableUndirectedGraph>::New(); // Create 3 vertices vtkIdType v1 = g->AddVertex(); vtkIdType v2 = g->AddVertex(); vtkIdType v3 = g->AddVertex(); g->AddEdge(v1, v2); g->AddEdge(v1, v3); vtkSmartPointer<vtkPoints> points = vtkSmartPointer<vtkPoints>::New(); points->InsertNextPoint(0.0, 0.0, 0.0); points->InsertNextPoint(1.0, 0.0, 0.0); points->InsertNextPoint(0.0, 1.0, 0.0); g->SetPoints(points); std::cout << "Number of output points: " << g->GetPoints()->GetNumberOfPoints() << std::endl; vtkSmartPointer<vtkGraphLayoutView> graphLayoutView = vtkSmartPointer<vtkGraphLayoutView>::New(); graphLayoutView->AddRepresentationFromInput(g); graphLayoutView->SetLayoutStrategy("Pass Through"); graphLayoutView->ResetCamera(); graphLayoutView->Render(); graphLayoutView->GetInteractor()->Start(); return EXIT_SUCCESS; }
CMakeLists.txt¶
cmake_minimum_required(VERSION 2.8) PROJECT(GraphPoints) find_package(VTK REQUIRED) include(${VTK_USE_FILE}) add_executable(GraphPoints MACOSX_BUNDLE GraphPoints.cxx) target_link_libraries(GraphPoints ${VTK_LIBRARIES})
Download and Build GraphPoints¶
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 Some tarballs may be missing or out-of-date.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 GraphPoints and its CMakeLists.txt file. Once the tarball GraphPoints.tar has been downloaded and extracted,
cd GraphPoints/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:
./GraphPoints
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.