vtkTestMultipleInputPortsFilter
VTKExamples/Cxx/Developers/vtkTestMultipleInputPortsFilter
Code¶
vtkTestMultipleInputPortsFilter.cxx
#include "vtkTestMultipleInputPortsFilter.h" #include "vtkObjectFactory.h" #include "vtkStreamingDemandDrivenPipeline.h" #include "vtkInformationVector.h" #include "vtkInformation.h" #include "vtkDataObject.h" #include "vtkSmartPointer.h" vtkStandardNewMacro(vtkTestMultipleInputPortsFilter); vtkTestMultipleInputPortsFilter::vtkTestMultipleInputPortsFilter() { this->SetNumberOfInputPorts(2); } int vtkTestMultipleInputPortsFilter::FillInputPortInformation( int port, vtkInformation* info ) { if ( port == 0 ) { info->Set(vtkDataObject::DATA_TYPE_NAME(), "vtkPolyData" ); return 1; } else if(port == 1) { info->Set(vtkDataObject::DATA_TYPE_NAME(), "vtkPolyData" ); return 1; } return 0; } int vtkTestMultipleInputPortsFilter::RequestData(vtkInformation *vtkNotUsed(request), vtkInformationVector **inputVector, vtkInformationVector *outputVector) { // get the info objects vtkInformation *inInfo0 = inputVector[0]->GetInformationObject(0); vtkInformation *inInfo1 = inputVector[1]->GetInformationObject(0); vtkInformation *outInfo = outputVector->GetInformationObject(0); // get the input and ouptut vtkPolyData *input0 = vtkPolyData::SafeDownCast( inInfo0->Get(vtkDataObject::DATA_OBJECT())); std::cout << "input0 has " << input0->GetNumberOfPoints() << " points." << std::endl; vtkPolyData *input1 = vtkPolyData::SafeDownCast( inInfo1->Get(vtkDataObject::DATA_OBJECT())); std::cout << "input1 has " << input1->GetNumberOfPoints() << " points." << std::endl; vtkPolyData *output = vtkPolyData::SafeDownCast( outInfo->Get(vtkDataObject::DATA_OBJECT())); output->ShallowCopy(input0); return 1; }
CMakeLists.txt¶
cmake_minimum_required(VERSION 2.8) PROJECT(vtkTestMultipleInputPortsFilter) find_package(VTK REQUIRED) include(${VTK_USE_FILE}) add_executable(vtkTestMultipleInputPortsFilter MACOSX_BUNDLE vtkTestMultipleInputPortsFilter.cxx) target_link_libraries(vtkTestMultipleInputPortsFilter ${VTK_LIBRARIES})
Download and Build vtkTestMultipleInputPortsFilter¶
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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 Some tarballs may be missing or out-of-date.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 vtkTestMultipleInputPortsFilter and its CMakeLists.txt file. Once the tarball vtkTestMultipleInputPortsFilter.tar has been downloaded and extracted,
cd vtkTestMultipleInputPortsFilter/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:
./vtkTestMultipleInputPortsFilter
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.