# RandomGraphSource

VTKExamples/Cxx/Graphs/RandomGraphSource

### Code

RandomGraphSource.cxx

    #include <vtkSmartPointer.h>

    #include <vtkGraphLayoutView.h>
    #include <vtkGraphWriter.h>
    #include <vtkRandomGraphSource.h>
    #include <vtkRenderWindowInteractor.h>

    int main(int, char *[])
    {
      vtkSmartPointer<vtkRandomGraphSource> randomGraphSource =
        vtkSmartPointer<vtkRandomGraphSource>::New();
      randomGraphSource->SetNumberOfVertices(5);
      randomGraphSource->SetNumberOfEdges(4);
      randomGraphSource->SetSeed(0); // This ensures repeatable results for testing. Turn this off for real use.
      randomGraphSource->Update();

      vtkSmartPointer<vtkGraphLayoutView> graphLayoutView =
        vtkSmartPointer<vtkGraphLayoutView>::New();
      graphLayoutView->AddRepresentationFromInput(
        randomGraphSource->GetOutput());
      graphLayoutView->ResetCamera();
      graphLayoutView->Render();
      graphLayoutView->GetInteractor()->Start();

      return EXIT_SUCCESS;
    }

### CMakeLists.txt

    cmake_minimum_required(VERSION 2.8)

    PROJECT(RandomGraphSource)

    find_package(VTK REQUIRED)
    include(${VTK_USE_FILE})

    add_executable(RandomGraphSource MACOSX_BUNDLE RandomGraphSource.cxx )

    target_link_libraries(RandomGraphSource ${VTK_LIBRARIES})

### Download and Build RandomGraphSource

Click here to download RandomGraphSource and its CMakeLists.txt file. Once the tarball RandomGraphSource.tar has been downloaded and extracted,

    cd RandomGraphSource/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:

    ./RandomGraphSource

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.