vtkTestGraphAlgorithmFilter
VTKExamples/Cxx/Developers/vtkTestGraphAlgorithmFilter
Code¶
vtkTestGraphAlgorithmFilter.cxx
#include "vtkTestGraphAlgorithmFilter.h" #include "vtkObjectFactory.h" #include "vtkStreamingDemandDrivenPipeline.h" #include "vtkInformationVector.h" #include "vtkInformation.h" #include "vtkDataObject.h" #include "vtkSmartPointer.h" #include "vtkMutableUndirectedGraph.h" #include "vtkMutableDirectedGraph.h" #include "vtkMutableGraphHelper.h" vtkStandardNewMacro(vtkTestGraphAlgorithmFilter); int vtkTestGraphAlgorithmFilter::RequestData(vtkInformation *vtkNotUsed(request), vtkInformationVector **inputVector, vtkInformationVector *outputVector) { // get the info objects vtkInformation *inInfo = inputVector[0]->GetInformationObject(0); vtkInformation *outInfo = outputVector->GetInformationObject(0); // get the input and ouptut vtkGraph *input = vtkGraph::SafeDownCast( inInfo->Get(vtkDataObject::DATA_OBJECT())); vtkGraph *output = vtkGraph::SafeDownCast( outInfo->Get(vtkDataObject::DATA_OBJECT())); vtkSmartPointer<vtkMutableDirectedGraph> mdg = vtkSmartPointer<vtkMutableDirectedGraph>::New(); vtkSmartPointer<vtkMutableUndirectedGraph> mug = vtkSmartPointer<vtkMutableUndirectedGraph>::New(); if(input->IsA("vtkMutableUndirectedGraph")) { vtkSmartPointer<vtkMutableUndirectedGraph> ug = vtkSmartPointer<vtkMutableUndirectedGraph>::New(); ug->AddVertex(); output->ShallowCopy(ug); } else if(input->IsA("vtkMutableDirectedGraph")) { vtkSmartPointer<vtkMutableDirectedGraph> dg = vtkSmartPointer<vtkMutableDirectedGraph>::New(); dg->AddVertex(); output->ShallowCopy(dg); } std::cout << "Output is type: " << output->GetClassName() << std::endl; return 1; }
CMakeLists.txt¶
cmake_minimum_required(VERSION 2.8) PROJECT(vtkTestGraphAlgorithmFilter) find_package(VTK REQUIRED) include(${VTK_USE_FILE}) add_executable(vtkTestGraphAlgorithmFilter MACOSX_BUNDLE vtkTestGraphAlgorithmFilter.cxx) target_link_libraries(vtkTestGraphAlgorithmFilter ${VTK_LIBRARIES})
Download and Build vtkTestGraphAlgorithmFilter¶
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 Some tarballs may be missing or out-of-date.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 vtkTestGraphAlgorithmFilter and its CMakeLists.txt file. Once the tarball vtkTestGraphAlgorithmFilter.tar has been downloaded and extracted,
cd vtkTestGraphAlgorithmFilter/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:
./vtkTestGraphAlgorithmFilter
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.