TransformActorCollection
VTKExamples/Cxx/Visualization/TransformActorCollection
Code¶
TransformActorCollection.cxx
#include <vtkSmartPointer.h> #include <vtkConeSource.h> #include <vtkSphereSource.h> #include <vtkCubeSource.h> #include <vtkTransform.h> #include <vtkPolyData.h> #include <vtkPolyDataMapper.h> #include <vtkActor.h> #include <vtkRenderWindow.h> #include <vtkRenderer.h> #include <vtkRenderWindowInteractor.h> #include <vtkActorCollection.h> int main(int, char *[]) { vtkSmartPointer<vtkRenderer> renderer = vtkSmartPointer<vtkRenderer>::New(); // Create a cone vtkSmartPointer<vtkConeSource> coneSource = vtkSmartPointer<vtkConeSource>::New(); coneSource->SetHeight(3); vtkSmartPointer<vtkPolyDataMapper> coneMapper = vtkSmartPointer<vtkPolyDataMapper>::New(); coneMapper->SetInputConnection(coneSource->GetOutputPort()); vtkSmartPointer<vtkActor> coneActor = vtkSmartPointer<vtkActor>::New(); coneActor->SetMapper(coneMapper); // Create a cube vtkSmartPointer<vtkCubeSource> cubeSource = vtkSmartPointer<vtkCubeSource>::New(); vtkSmartPointer<vtkPolyDataMapper> cubeMapper = vtkSmartPointer<vtkPolyDataMapper>::New(); cubeMapper->SetInputConnection(cubeSource->GetOutputPort()); vtkSmartPointer<vtkActor> cubeActor = vtkSmartPointer<vtkActor>::New(); cubeActor->SetMapper(cubeMapper); // Create a sphere vtkSmartPointer<vtkSphereSource> sphereSource = vtkSmartPointer<vtkSphereSource>::New(); vtkSmartPointer<vtkPolyDataMapper> sphereMapper = vtkSmartPointer<vtkPolyDataMapper>::New(); sphereMapper->SetInputConnection(sphereSource->GetOutputPort()); vtkSmartPointer<vtkActor> sphereActor = vtkSmartPointer<vtkActor>::New(); sphereActor->SetMapper(sphereMapper); renderer->AddActor(sphereActor); vtkSmartPointer<vtkActorCollection> actorCollection = vtkSmartPointer<vtkActorCollection>::New(); actorCollection->AddItem(cubeActor); actorCollection->AddItem(coneActor); actorCollection->InitTraversal(); vtkSmartPointer<vtkTransform> transform = vtkSmartPointer<vtkTransform>::New(); transform->PostMultiply(); //this is the key line transform->Translate(5.0, 0, 0); //actorCollection->SetUserTransform(transform); for(vtkIdType i = 0; i < actorCollection->GetNumberOfItems(); i++) { vtkActor* actor = actorCollection->GetNextActor(); actor->SetUserTransform(transform); renderer->AddActor(actor); } // Create a renderer, render window, and interactor vtkSmartPointer<vtkRenderWindow> renderWindow = vtkSmartPointer<vtkRenderWindow>::New(); renderWindow->AddRenderer(renderer); vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor = vtkSmartPointer<vtkRenderWindowInteractor>::New(); renderWindowInteractor->SetRenderWindow(renderWindow); // Add the actor to the scene renderer->SetBackground(.2, .3, .4); // Render and interact renderWindow->Render(); renderWindowInteractor->Start(); return EXIT_SUCCESS; }
CMakeLists.txt¶
cmake_minimum_required(VERSION 2.8) PROJECT(TransformActorCollection) find_package(VTK REQUIRED) include(${VTK_USE_FILE}) add_executable(TransformActorCollection MACOSX_BUNDLE TransformActorCollection.cxx) target_link_libraries(TransformActorCollection ${VTK_LIBRARIES})
Download and Build TransformActorCollection¶
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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 TransformActorCollection and its CMakeLists.txt file. Once the tarball TransformActorCollection.tar has been downloaded and extracted,
cd TransformActorCollection/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:
./TransformActorCollection
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.