RegularPolygonSource
VTKExamples/Cxx/GeometricObjects/RegularPolygonSource
Description¶
This example creates a pentagon.
Code¶
RegularPolygonSource.cxx
#include <vtkRegularPolygonSource.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 *[]) { // Create a pentagon vtkSmartPointer<vtkRegularPolygonSource> polygonSource = vtkSmartPointer<vtkRegularPolygonSource>::New(); //polygonSource->GeneratePolygonOff(); polygonSource->SetNumberOfSides(5); polygonSource->SetRadius(5); polygonSource->SetCenter(0,0,0); polygonSource->Update(); vtkSmartPointer<vtkPolyDataMapper> mapper = vtkSmartPointer<vtkPolyDataMapper>::New(); mapper->SetInputConnection(polygonSource->GetOutputPort()); vtkSmartPointer<vtkActor> actor = vtkSmartPointer<vtkActor>::New(); actor->SetMapper(mapper); 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(actor); renderer->SetBackground(.3,.3,.5); // Background color purple renderWindow->Render(); renderWindowInteractor->Start(); return EXIT_SUCCESS; }
CMakeLists.txt¶
cmake_minimum_required(VERSION 2.8) PROJECT(RegularPolygonSource) find_package(VTK REQUIRED) include(${VTK_USE_FILE}) add_executable(RegularPolygonSource MACOSX_BUNDLE RegularPolygonSource.cxx) target_link_libraries(RegularPolygonSource ${VTK_LIBRARIES})
Download and Build RegularPolygonSource¶
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 Some tarballs may be missing or out-of-date.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 RegularPolygonSource and its CMakeLists.txt file. Once the tarball RegularPolygonSource.tar has been downloaded and extracted,
cd RegularPolygonSource/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:
./RegularPolygonSource
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.