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
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.