ConstructTree
VTKExamples/Cxx/Graphs/ConstructTree
Code¶
ConstructTree.cxx
#include <vtkSmartPointer.h> #include <vtkGraphLayoutView.h> #include <vtkMutableDirectedGraph.h> #include <vtkRenderWindowInteractor.h> #include <vtkTree.h> int main (int, char *[] ) { vtkSmartPointer<vtkMutableDirectedGraph> graph = vtkSmartPointer<vtkMutableDirectedGraph>::New(); vtkIdType v1 = graph->AddVertex(); vtkIdType v2 = graph->AddChild(v1); graph->AddChild(v1); graph->AddChild(v2); /* //equivalent to: vtkIdType V1 = g->AddVertex(); vtkIdType V2 = g->AddVertex(); vtkIdType V3 = g->AddVertex(); vtkIdType V4 = g->AddVertex(); g->AddEdge ( V1, V2 ); g->AddEdge ( V1, V3 ); g->AddEdge ( V2, V4 ); */ vtkSmartPointer<vtkTree> tree = vtkSmartPointer<vtkTree>::New(); bool success = tree->CheckedShallowCopy(graph); std::cout << "Success? " << success << std::endl; vtkSmartPointer<vtkGraphLayoutView> treeLayoutView = vtkSmartPointer<vtkGraphLayoutView>::New(); treeLayoutView->AddRepresentationFromInput(tree); treeLayoutView->SetLayoutStrategyToTree(); treeLayoutView->ResetCamera(); treeLayoutView->Render(); treeLayoutView->GetInteractor()->Start(); return EXIT_SUCCESS; }
CMakeLists.txt¶
cmake_minimum_required(VERSION 2.8) PROJECT(ConstructTree) find_package(VTK REQUIRED) include(${VTK_USE_FILE}) add_executable(ConstructTree MACOSX_BUNDLE ConstructTree.cxx) target_link_libraries(ConstructTree ${VTK_LIBRARIES})
Download and Build ConstructTree¶
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 Some tarballs may be missing or out-of-date.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 ConstructTree and its CMakeLists.txt file. Once the tarball ConstructTree.tar has been downloaded and extracted,
cd ConstructTree/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:
./ConstructTree
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.