vtkTestFilter
VTKExamples/Cxx/Demos/vtkTestFilter
Code¶
vtkTestFilter.cxx
#include "vtkTestFilter.h" #include "vtkObjectFactory.h" #include "vtkCommand.h" #include "vtkStreamingDemandDrivenPipeline.h" #include "vtkInformationVector.h" #include "vtkInformation.h" #include "vtkDataObject.h" #include "vtkSmartPointer.h" #include "vtkAppendPolyData.h" #include "vtkSphereSource.h" vtkStandardNewMacro(vtkTestFilter); vtkTestFilter::vtkTestFilter() { this->SetNumberOfInputPorts(0); this->Output = vtkSmartPointer<vtkPolyData>::New(); this->RefreshEvent = vtkCommand::UserEvent + 1; } int vtkTestFilter::RequestData(vtkInformation *vtkNotUsed(request), vtkInformationVector **inputVector, vtkInformationVector *outputVector) { // Get the info object vtkInformation *outInfo = outputVector->GetInformationObject(0); vtkPolyData *output = vtkPolyData::SafeDownCast( outInfo->Get(vtkDataObject::DATA_OBJECT())); this->Output->DeepCopy(output); for(unsigned int i = 0; i < 10; i++) { Iterate(i); this->InvokeEvent(this->RefreshEvent, NULL); } output->ShallowCopy(this->Output); return 1; } void vtkTestFilter::Iterate(unsigned int iteration) { vtkSmartPointer<vtkSphereSource> sphereSource = vtkSmartPointer<vtkSphereSource>::New(); sphereSource->SetCenter(iteration, 0, 0); sphereSource->SetRadius(0.2); sphereSource->Update(); vtkSmartPointer<vtkAppendPolyData> appendFilter = vtkSmartPointer<vtkAppendPolyData>::New(); appendFilter->AddInputConnection(this->Output->GetProducerPort()); appendFilter->AddInputConnection(sphereSource->GetOutputPort()); appendFilter->Update(); this->Output->DeepCopy(appendFilter->GetOutput()); }
CMakeLists.txt¶
cmake_minimum_required(VERSION 2.8) PROJECT(vtkTestFilter) find_package(VTK REQUIRED) include(${VTK_USE_FILE}) add_executable(vtkTestFilter MACOSX_BUNDLE vtkTestFilter.cxx) target_link_libraries(vtkTestFilter ${VTK_LIBRARIES})
Download and Build vtkTestFilter¶
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 Some tarballs may be missing or out-of-date.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 vtkTestFilter and its CMakeLists.txt file. Once the tarball vtkTestFilter.tar has been downloaded and extracted,
cd vtkTestFilter/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:
./vtkTestFilter
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.