SolidClip
VTKExamples/Cxx/Meshes/SolidClip
Description¶
This example clips a mesh and applies a backface property to that mesh that appears to have a solid interior.
Code¶
SolidClip.cxx
#include <vtkActor.h> #include <vtkCamera.h> #include <vtkPolyData.h> #include <vtkPolyDataMapper.h> #include <vtkRenderer.h> #include <vtkRenderWindow.h> #include <vtkRenderWindowInteractor.h> #include <vtkSmartPointer.h> #include <vtkSuperquadricSource.h> #include <vtkClipPolyData.h> #include <vtkPlane.h> #include <vtkProperty.h> int main(int, char *[]) { // Create a superquadric vtkSmartPointer<vtkSuperquadricSource> superquadricSource = vtkSmartPointer<vtkSuperquadricSource>::New(); superquadricSource->SetPhiRoundness(3.1); superquadricSource->SetThetaRoundness(2.2); // Define a clipping plane vtkSmartPointer<vtkPlane> clipPlane = vtkSmartPointer<vtkPlane>::New(); clipPlane->SetNormal(1.0, -1.0, -1.0); clipPlane->SetOrigin(0.0, 0.0, 0.0); // Clip the source with the plane vtkSmartPointer<vtkClipPolyData> clipper = vtkSmartPointer<vtkClipPolyData>::New(); clipper->SetInputConnection(superquadricSource->GetOutputPort()); clipper->SetClipFunction(clipPlane); //Create a mapper and actor vtkSmartPointer<vtkPolyDataMapper> superquadricMapper = vtkSmartPointer<vtkPolyDataMapper>::New(); superquadricMapper->SetInputConnection(clipper->GetOutputPort()); vtkSmartPointer<vtkActor> superquadricActor = vtkSmartPointer<vtkActor>::New(); superquadricActor->SetMapper(superquadricMapper); // Create a property to be used for the back faces. Turn off all // shading by specifying 0 weights for specular and diffuse. Max the // ambient. vtkSmartPointer<vtkProperty> backFaces = vtkSmartPointer<vtkProperty>::New(); backFaces->SetSpecular(0.0); backFaces->SetDiffuse(0.0); backFaces->SetAmbient(1.0); backFaces->SetAmbientColor(1.0000, 0.3882, 0.2784); superquadricActor->SetBackfaceProperty(backFaces); // Create a renderer vtkSmartPointer<vtkRenderer> renderer = vtkSmartPointer<vtkRenderer>::New(); vtkSmartPointer<vtkRenderWindow> renderWindow = vtkSmartPointer<vtkRenderWindow>::New(); renderWindow->SetWindowName("SolidClip"); renderWindow->AddRenderer(renderer); vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor = vtkSmartPointer<vtkRenderWindowInteractor>::New(); renderWindowInteractor->SetRenderWindow(renderWindow); //Add actors to the renderers renderer->AddActor(superquadricActor); renderWindow->Render(); //Interact with the window renderWindowInteractor->Start(); return EXIT_SUCCESS; }
CMakeLists.txt¶
cmake_minimum_required(VERSION 2.8) PROJECT(SolidClip) find_package(VTK REQUIRED) include(${VTK_USE_FILE}) add_executable(SolidClip MACOSX_BUNDLE SolidClip.cxx) target_link_libraries(SolidClip ${VTK_LIBRARIES})
Download and Build SolidClip¶
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 SolidClip and its CMakeLists.txt file. Once the tarball SolidClip.tar has been downloaded and extracted,
cd SolidClip/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:
./SolidClip
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.