ShareCamera
VTKExamples/Cxx/Utilities/ShareCamera
Code¶
ShareCamera.cxx
#include <vtkSphereSource.h> #include <vtkProperty.h> #include <vtkPolyData.h> #include <vtkSmartPointer.h> #include <vtkPolyDataMapper.h> #include <vtkActor.h> #include <vtkRenderWindow.h> #include <vtkRenderer.h> #include <vtkRenderWindowInteractor.h> int main(int, char *[]) { vtkSmartPointer<vtkRenderWindow> renderWindow = vtkSmartPointer<vtkRenderWindow>::New(); vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor = vtkSmartPointer<vtkRenderWindowInteractor>::New(); renderWindowInteractor->SetRenderWindow(renderWindow); // Define viewport ranges double xmins[4] = {0,.5,0,.5}; double xmaxs[4] = {0.5,1,0.5,1}; double ymins[4] = {0,0,.5,.5}; double ymaxs[4]= {0.5,0.5,1,1}; vtkCamera* camera; for(unsigned i = 0; i < 4; i++) { vtkSmartPointer<vtkRenderer> renderer = vtkSmartPointer<vtkRenderer>::New(); renderWindow->AddRenderer(renderer); if(i == 0) { camera = renderer->GetActiveCamera(); } else { renderer->SetActiveCamera(camera); } renderer->SetViewport(xmins[i],ymins[i],xmaxs[i],ymaxs[i]); // Create a sphere vtkSmartPointer<vtkSphereSource> sphereSource = vtkSmartPointer<vtkSphereSource>::New(); sphereSource->SetCenter(0.0, 0.0, 0.0); sphereSource->SetRadius(5); sphereSource->Update(); // Create a mapper and actor vtkSmartPointer<vtkPolyDataMapper> mapper = vtkSmartPointer<vtkPolyDataMapper>::New(); mapper->SetInputConnection(sphereSource->GetOutputPort()); vtkSmartPointer<vtkActor> actor = vtkSmartPointer<vtkActor>::New(); actor->SetMapper(mapper); renderer->AddActor(actor); renderer->ResetCamera(); renderWindow->Render(); renderWindow->SetWindowName("Multiple ViewPorts"); } renderWindowInteractor->Start(); return EXIT_SUCCESS; }
CMakeLists.txt¶
cmake_minimum_required(VERSION 2.8) PROJECT(ShareCamera) find_package(VTK REQUIRED) include(${VTK_USE_FILE}) add_executable(ShareCamera MACOSX_BUNDLE ShareCamera.cxx) target_link_libraries(ShareCamera ${VTK_LIBRARIES})
Download and Build ShareCamera¶
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 Some tarballs may be missing or out-of-date.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 ShareCamera and its CMakeLists.txt file. Once the tarball ShareCamera.tar has been downloaded and extracted,
cd ShareCamera/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:
./ShareCamera
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.