VTK/Examples/Cxx/Interaction/TrackballCamera
From KitwarePublic
This example demonstrates the trackball camera mode. When the mouse is clicked and dragged from anywhere in the window, the camera is modified.
Contrast this with Trackball Actor.
TrackballCamera.cxx
#include <vtkSmartPointer.h> #include <vtkPolyDataMapper.h> #include <vtkActor.h> #include <vtkRenderWindow.h> #include <vtkRenderer.h> #include <vtkRenderWindowInteractor.h> #include <vtkPolyData.h> #include <vtkSphereSource.h> #include <vtkConeSource.h> #include <vtkInteractorStyleTrackballCamera.h> int main (int, char *[]) { // Create a sphere vtkSmartPointer<vtkSphereSource> sphereSource = vtkSmartPointer<vtkSphereSource>::New(); sphereSource->SetCenter(1.0, 0.0, 0.0); sphereSource->Update(); // Create a mapper and actor vtkSmartPointer<vtkPolyDataMapper> sphereMapper = vtkSmartPointer<vtkPolyDataMapper>::New(); sphereMapper->SetInputConnection(sphereSource->GetOutputPort()); vtkSmartPointer<vtkActor> sphereActor = vtkSmartPointer<vtkActor>::New(); sphereActor->SetMapper(sphereMapper); // Create a cone vtkSmartPointer<vtkConeSource> coneSource = vtkSmartPointer<vtkConeSource>::New(); // Create a mapper and actor vtkSmartPointer<vtkPolyDataMapper> coneMapper = vtkSmartPointer<vtkPolyDataMapper>::New(); coneMapper->SetInputConnection(coneSource->GetOutputPort()); vtkSmartPointer<vtkActor> coneActor = vtkSmartPointer<vtkActor>::New(); coneActor->SetMapper(coneMapper); // A renderer and render window vtkSmartPointer<vtkRenderer> renderer = vtkSmartPointer<vtkRenderer>::New(); vtkSmartPointer<vtkRenderWindow> renderWindow = vtkSmartPointer<vtkRenderWindow>::New(); renderWindow->AddRenderer(renderer); // An interactor vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor = vtkSmartPointer<vtkRenderWindowInteractor>::New(); renderWindowInteractor->SetRenderWindow(renderWindow); // Add the actors to the scene renderer->AddActor(sphereActor); renderer->AddActor(coneActor); renderer->SetBackground(.1,.2,.3); // Background color dark blue // Render an image (lights and cameras are created automatically) renderWindow->SetWindowName("Trackball Camera"); renderWindow->Render(); vtkSmartPointer<vtkInteractorStyleTrackballCamera> style = vtkSmartPointer<vtkInteractorStyleTrackballCamera>::New(); //like paraview renderWindowInteractor->SetInteractorStyle( style ); // Begin mouse interaction renderWindowInteractor->Start(); return EXIT_SUCCESS; }
CMakeLists.txt
cmake_minimum_required(VERSION 2.6) PROJECT(TrackballCamera) FIND_PACKAGE(VTK REQUIRED) INCLUDE(${VTK_USE_FILE}) ADD_EXECUTABLE(TrackballCamera TrackballCamera.cxx) TARGET_LINK_LIBRARIES(TrackballCamera vtkHybrid)
Color.
