ClipClosedSurface
VTKExamples/Cxx/Meshes/ClipClosedSurface
Code
ClipClosedSurface.cxx
#include <vtkVersion.h>
#include <vtkSmartPointer.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkRenderWindow.h>
#include <vtkRenderer.h>
#include <vtkActor.h>
#include <vtkCamera.h>
#include <vtkDataSetMapper.h>
#include <vtkPolyData.h>
#include <vtkActor.h>
#include <vtkProperty.h>
#include <vtkClipClosedSurface.h>
#include <vtkPlane.h>
#include <vtkPlaneCollection.h>
#include <vtkXMLPolyDataReader.h>
#include <vtkSphereSource.h>
//
// Demonstrate the use of clipping of polygonal data
//
int main (int argc, char *argv[])
{
// PolyData to process
vtkSmartPointer<vtkPolyData> polyData;
if (argc > 1)
{
vtkSmartPointer<vtkXMLPolyDataReader> reader =
vtkSmartPointer<vtkXMLPolyDataReader>::New();
reader->SetFileName(argv[1]);
reader->Update();
polyData = reader->GetOutput();
}
else
{
// Create a sphere
vtkSmartPointer<vtkSphereSource> sphereSource =
vtkSmartPointer<vtkSphereSource>::New();
sphereSource->SetThetaResolution(20);
sphereSource->SetPhiResolution(11);
sphereSource->Update();
polyData = sphereSource->GetOutput();
}
double *center = polyData->GetCenter();
vtkSmartPointer<vtkPlane> plane1 =
vtkSmartPointer<vtkPlane>::New();
plane1->SetOrigin(center[0], center[1], center[2]);
plane1->SetNormal(0.0, -1.0, 0.0);
vtkSmartPointer<vtkPlane> plane2 =
vtkSmartPointer<vtkPlane>::New();
plane2->SetOrigin(center[0], center[1], center[2]);
plane2->SetNormal(0.0, 0.0, 1.0);
vtkSmartPointer<vtkPlane> plane3 =
vtkSmartPointer<vtkPlane>::New();
plane3->SetOrigin(center[0], center[1], center[2]);
plane3->SetNormal(-1.0, 0.0, 0.0);
vtkSmartPointer<vtkPlaneCollection> planes =
vtkSmartPointer<vtkPlaneCollection>::New();
planes->AddItem(plane1);
planes->AddItem(plane2);
planes->AddItem(plane3);
vtkSmartPointer<vtkClipClosedSurface> clipper =
vtkSmartPointer<vtkClipClosedSurface>::New();
#if VTK_MAJOR_VERSION <= 5
clipper->SetInput(polyData);
#else
clipper->SetInputData(polyData);
#endif
clipper->SetClippingPlanes(planes);
clipper->SetActivePlaneId(2);
clipper->SetScalarModeToColors();
clipper->SetClipColor(0.8900, 0.8100, 0.3400); // banana
clipper->SetBaseColor(1.0000, 0.3882, 0.2784); // tomato
clipper->SetActivePlaneColor(0.6400, 0.5800, 0.5000); // beige
vtkSmartPointer<vtkDataSetMapper> clipMapper =
vtkSmartPointer<vtkDataSetMapper>::New();
clipMapper->SetInputConnection(clipper->GetOutputPort());
vtkSmartPointer<vtkActor> clipActor =
vtkSmartPointer<vtkActor>::New();
clipActor->SetMapper(clipMapper);
clipActor->GetProperty()->SetColor(1.0000,0.3882,0.2784);
clipActor->GetProperty()->SetInterpolationToFlat();
// Create graphics stuff
//
vtkSmartPointer<vtkRenderer> ren1 =
vtkSmartPointer<vtkRenderer>::New();
ren1->SetBackground(.3, .4, .6);
vtkSmartPointer<vtkRenderWindow> renWin =
vtkSmartPointer<vtkRenderWindow>::New();
renWin->AddRenderer(ren1);
renWin->SetSize(512,512);
vtkSmartPointer<vtkRenderWindowInteractor> iren =
vtkSmartPointer<vtkRenderWindowInteractor>::New();
iren->SetRenderWindow(renWin);
// Add the actors to the renderer, set the background and size
//
ren1->AddActor(clipActor);
// Generate an interesting view
//
ren1->ResetCamera();
ren1->GetActiveCamera()->Azimuth(120);
ren1->GetActiveCamera()->Elevation(30);
ren1->GetActiveCamera()->Dolly(1.0);
ren1->ResetCameraClippingRange();
iren->Initialize();
iren->Start();
return EXIT_SUCCESS;
}
CMakeLists.txt
cmake_minimum_required(VERSION 2.8)
PROJECT(ClipClosedSurface)
find_package(VTK REQUIRED)
include(${VTK_USE_FILE})
add_executable(ClipClosedSurface MACOSX_BUNDLE ClipClosedSurface.cxx)
target_link_libraries(ClipClosedSurface ${VTK_LIBRARIES})
Download and Build ClipClosedSurface
Click here to download ClipClosedSurface and its CMakeLists.txt file. Once the tarball ClipClosedSurface.tar has been downloaded and extracted,
cd ClipClosedSurface/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:
./ClipClosedSurface
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.