CylinderRenderingProperties
VTKExamples/Cxx/Rendering/CylinderRenderingProperties
This example creates a minimal visualization program, demonstrating VTK's basic rendering and pipeline creation.
Code¶
CylinderRenderingProperties.cxx
#include "vtkCylinderSource.h" #include "vtkPolyDataMapper.h" #include "vtkActor.h" #include "vtkRenderer.h" #include "vtkRenderWindow.h" #include "vtkRenderWindowInteractor.h" #include "vtkProperty.h" #include "vtkCamera.h" #include "vtkSmartPointer.h" int main(int, char *[]) { // This creates a polygonal cylinder model with eight circumferential facets // (i.e, in practice an octagonal prism). vtkSmartPointer<vtkCylinderSource> cylinder = vtkSmartPointer<vtkCylinderSource>::New(); cylinder->SetResolution(8); // The mapper is responsible for pushing the geometry into the graphics library. // It may also do color mapping, if scalars or other attributes are defined. vtkSmartPointer<vtkPolyDataMapper> cylinderMapper = vtkSmartPointer<vtkPolyDataMapper>::New(); cylinderMapper->SetInputConnection(cylinder->GetOutputPort()); // The actor is a grouping mechanism: besides the geometry (mapper), it // also has a property, transformation matrix, and/or texture map. // Here we set its color and rotate it around the X and Y axes. vtkSmartPointer<vtkActor> cylinderActor = vtkSmartPointer<vtkActor>::New(); cylinderActor->SetMapper(cylinderMapper); cylinderActor->GetProperty()->SetColor(1.0000, 0.3882, 0.2784); cylinderActor->RotateX(30.0); cylinderActor->RotateY(-45.0); // The renderer generates the image // which is then displayed on the render window. // It can be thought of as a scene to which the actor is added vtkSmartPointer<vtkRenderer> renderer = vtkSmartPointer<vtkRenderer>::New(); renderer->AddActor(cylinderActor); renderer->SetBackground(0.1, 0.2, 0.4); // Zoom in a little by accessing the camera and invoking its "Zoom" method. renderer->ResetCamera(); renderer->GetActiveCamera()->Zoom(1.5); // The render window is the actual GUI window // that appears on the computer screen vtkSmartPointer<vtkRenderWindow> renderWindow = vtkSmartPointer<vtkRenderWindow>::New(); renderWindow->SetSize(200, 200); renderWindow->AddRenderer(renderer); // The render window interactor captures mouse events // and will perform appropriate camera or actor manipulation // depending on the nature of the events. vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor = vtkSmartPointer<vtkRenderWindowInteractor>::New(); renderWindowInteractor->SetRenderWindow(renderWindow); // This starts the event loop and as a side effect causes an initial render. renderWindowInteractor->Start(); return EXIT_SUCCESS; }
CMakeLists.txt¶
cmake_minimum_required(VERSION 2.8) PROJECT(CylinderRenderingProperties) find_package(VTK REQUIRED) include(${VTK_USE_FILE}) add_executable(CylinderRenderingProperties MACOSX_BUNDLE CylinderRenderingProperties.cxx) target_link_libraries(CylinderRenderingProperties ${VTK_LIBRARIES})
Download and Build CylinderRenderingProperties¶
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 CylinderRenderingProperties and its CMakeLists.txt file. Once the tarball CylinderRenderingProperties.tar has been downloaded and extracted,
cd CylinderRenderingProperties/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:
./CylinderRenderingProperties
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.