VisualizeGraph
VTKExamples/Cxx/Graphs/VisualizeGraph
Description¶
This example shows how to construct a graph and visualize it. You can select edges and vertices with the mouse.
Code¶
VisualizeGraph.cxx
#include <vtkSmartPointer.h> #include <vtkGraphLayoutStrategy.h> #include <vtkGraphLayoutView.h> #include <vtkGraphWriter.h> #include <vtkMutableUndirectedGraph.h> #include <vtkRenderWindowInteractor.h> #include <vtkSimple2DLayoutStrategy.h> int main(int, char *[]) { vtkSmartPointer<vtkMutableUndirectedGraph> g = vtkSmartPointer<vtkMutableUndirectedGraph>::New(); vtkIdType v1 = g->AddVertex(); vtkIdType v2 = g->AddVertex(); g->AddEdge(v1, v2); g->AddEdge(v1, v2); vtkSmartPointer<vtkGraphLayoutView> graphLayoutView = vtkSmartPointer<vtkGraphLayoutView>::New(); graphLayoutView->AddRepresentationFromInput(g); graphLayoutView->SetLayoutStrategy("Simple 2D"); graphLayoutView->ResetCamera(); graphLayoutView->Render(); vtkSimple2DLayoutStrategy::SafeDownCast(graphLayoutView->GetLayoutStrategy())->SetRandomSeed(0); graphLayoutView->GetInteractor()->Start(); return EXIT_SUCCESS; }
CMakeLists.txt¶
cmake_minimum_required(VERSION 2.8) PROJECT(VisualizeGraph) find_package(VTK REQUIRED) include(${VTK_USE_FILE}) add_executable(VisualizeGraph MACOSX_BUNDLE VisualizeGraph.cxx) target_link_libraries(VisualizeGraph ${VTK_LIBRARIES})
Download and Build VisualizeGraph¶
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 Some tarballs may be missing or out-of-date.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 VisualizeGraph and its CMakeLists.txt file. Once the tarball VisualizeGraph.tar has been downloaded and extracted,
cd VisualizeGraph/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:
./VisualizeGraph
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.