CameraActor
VTKExamples/Cxx/Visualization/CameraActor
Code¶
CameraActor.cxx
#include <vtkSphereSource.h> #include <vtkPolyDataMapper.h> #include <vtkSmartPointer.h> #include <vtkCamera.h> #include <vtkPlanes.h> #include <vtkMapper.h> #include <vtkCameraActor.h> #include <vtkRenderWindow.h> #include <vtkRenderer.h> #include <vtkRenderWindowInteractor.h> int main(int, char *[]) { // Sphere vtkSmartPointer<vtkSphereSource> sphereSource = vtkSmartPointer<vtkSphereSource>::New(); sphereSource->SetRadius(400); sphereSource->Update(); vtkSmartPointer<vtkPolyDataMapper> sphereMapper = vtkSmartPointer<vtkPolyDataMapper>::New(); sphereMapper->SetInputConnection(sphereSource->GetOutputPort()); vtkSmartPointer<vtkActor> sphereActor = vtkSmartPointer<vtkActor>::New(); sphereActor->SetMapper(sphereMapper); // Camera vtkSmartPointer<vtkCamera> camera = vtkSmartPointer<vtkCamera>::New(); vtkSmartPointer<vtkCameraActor> cameraActor = vtkSmartPointer<vtkCameraActor>::New(); cameraActor->SetCamera(camera); // (Xmin,Xmax,Ymin,Ymax,Zmin,Zmax). double* bounds = new double[6]; bounds = cameraActor->GetBounds(); std::cout << "bounds: " << bounds[0] << " " << bounds[1] << " " << bounds[2] << " " << bounds[3] << " " << bounds[4] << " " << bounds[5] << std::endl; // Visualize vtkSmartPointer<vtkRenderer> renderer = vtkSmartPointer<vtkRenderer>::New(); vtkSmartPointer<vtkRenderWindow> renderWindow = vtkSmartPointer<vtkRenderWindow>::New(); renderWindow->AddRenderer(renderer); vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor = vtkSmartPointer<vtkRenderWindowInteractor>::New(); renderWindowInteractor->SetRenderWindow(renderWindow); renderer->AddActor(cameraActor); renderer->AddActor(sphereActor); renderer->SetBackground(1,1,1); // Background color white renderWindow->Render(); renderWindowInteractor->Start(); return EXIT_SUCCESS; }
CMakeLists.txt¶
cmake_minimum_required(VERSION 2.8) PROJECT(CameraActor) find_package(VTK REQUIRED) include(${VTK_USE_FILE}) add_executable(CameraActor MACOSX_BUNDLE CameraActor.cxx) target_link_libraries(CameraActor ${VTK_LIBRARIES})
Download and Build CameraActor¶
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 Some tarballs may be missing or out-of-date.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 CameraActor and its CMakeLists.txt file. Once the tarball CameraActor.tar has been downloaded and extracted,
cd CameraActor/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:
./CameraActor
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.