VTK/Examples/Cxx/Graphs/ConstructGraph
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Contents
ConstructGraph.cxx
#include <vtkSmartPointer.h>
#include <vtkMutableUndirectedGraph.h>
#include <vtkCircularLayoutStrategy.h>
#include <vtkDataSetAttributes.h>
#include <vtkDoubleArray.h>
#include <vtkGraphLayoutView.h>
#include <vtkIntArray.h>
#include <vtkMutableUndirectedGraph.h>
#include <vtkRenderWindowInteractor.h>
int main(int, char *[])
{
vtkSmartPointer<vtkMutableUndirectedGraph> g =
vtkSmartPointer<vtkMutableUndirectedGraph>::New();
vtkIdType v1 = g->AddVertex();
vtkIdType v2 = g->AddVertex();
g->AddEdge ( v1, v2 );
std::cout << "Number of vertices: "
<< g->GetNumberOfVertices() << std::endl;
std::cout << "Number of edges: "
<< g->GetNumberOfEdges() << std::endl;
g->AddEdge ( v1, v2 );
std::cout << "Number of vertices: "
<< g->GetNumberOfVertices() << std::endl;
std::cout << "Number of edges: "
<< g->GetNumberOfEdges() << std::endl;
vtkSmartPointer<vtkGraphLayoutView> graphLayoutView =
vtkSmartPointer<vtkGraphLayoutView>::New();
graphLayoutView->AddRepresentationFromInput(g);
graphLayoutView->ResetCamera();
graphLayoutView->Render();
graphLayoutView->GetInteractor()->Start();
return EXIT_SUCCESS;
}
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CMakeLists.txt
cmake_minimum_required(VERSION 2.8)
PROJECT(ConstructGraph)
find_package(VTK REQUIRED)
include(${VTK_USE_FILE})
add_executable(ConstructGraph MACOSX_BUNDLE ConstructGraph.cxx)
if(VTK_LIBRARIES)
target_link_libraries(ConstructGraph ${VTK_LIBRARIES})
else()
target_link_libraries(ConstructGraph vtkHybrid vtkWidgets)
endif()
Download and Build ConstructGraph
Click here to download ConstructGraph. and its CMakeLists.txt file.
Once the tarball ConstructGraph.tar has been downloaded and extracted,
cd ConstructGraph/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:
./ConstructGraph
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.