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
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.