SphereWidget
VTKExamples/Cxx/Widgets/SphereWidget
Code¶
SphereWidget.cxx
#include <vtkPolyDataMapper.h> #include <vtkActor.h> #include <vtkRenderWindow.h> #include <vtkRenderer.h> #include <vtkRenderWindowInteractor.h> #include <vtkPolyData.h> #include <vtkSmartPointer.h> #include <vtkSphereSource.h> #include <vtkSphereWidget.h> #include <vtkSphereRepresentation.h> #include <vtkCommand.h> class SphereCallback : public vtkCommand { public: static SphereCallback *New() { return new SphereCallback; } SphereCallback(){} virtual void Execute(vtkObject *caller, unsigned long, void*) { vtkSphereWidget *sphereWidget = reinterpret_cast<vtkSphereWidget*>(caller); double center[3]; sphereWidget->GetCenter(center); std::cout << "Center: " << center[0] << " " << center[1] << " " << center[2] << std::endl; } }; int main(int, char *[]) { // 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); vtkSmartPointer<vtkSphereWidget> sphereWidget = vtkSmartPointer<vtkSphereWidget>::New(); sphereWidget->SetInteractor(renderWindowInteractor); sphereWidget->SetRepresentationToSurface(); vtkSmartPointer<SphereCallback> sphereCallback = vtkSmartPointer<SphereCallback>::New(); sphereWidget->AddObserver(vtkCommand::InteractionEvent,sphereCallback); renderWindow->Render(); renderWindowInteractor->Initialize(); renderWindow->Render(); sphereWidget->On(); renderWindowInteractor->Start(); return EXIT_SUCCESS; }
CMakeLists.txt¶
cmake_minimum_required(VERSION 2.8) PROJECT(SphereWidget) find_package(VTK REQUIRED) include(${VTK_USE_FILE}) add_executable(SphereWidget MACOSX_BUNDLE SphereWidget.cxx) target_link_libraries(SphereWidget ${VTK_LIBRARIES})
Download and Build SphereWidget¶
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 Some tarballs may be missing or out-of-date.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 SphereWidget and its CMakeLists.txt file. Once the tarball SphereWidget.tar has been downloaded and extracted,
cd SphereWidget/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:
./SphereWidget
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.