ClipClosedSurface
VTKExamples/Cxx/Meshes/ClipClosedSurface
Question
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Code¶
ClipClosedSurface.cxx
#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(); clipper->SetInputData(polyData); 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(); renWin->Render(); iren->Initialize(); iren->Start(); return EXIT_SUCCESS; }
CMakeLists.txt¶
cmake_minimum_required(VERSION 3.3 FATAL_ERROR) project(ClipClosedSurface) find_package(VTK COMPONENTS vtkCommonCore vtkCommonDataModel vtkFiltersGeneral vtkFiltersSources vtkIOXML vtkInteractionStyle vtkRenderingContextOpenGL2 vtkRenderingCore vtkRenderingFreeType vtkRenderingGL2PSOpenGL2 vtkRenderingOpenGL2 QUIET) if (NOT VTK_FOUND) message("Skipping ClipClosedSurface: ${VTK_NOT_FOUND_MESSAGE}") return () endif() message (STATUS "VTK_VERSION: ${VTK_VERSION}") if (VTK_VERSION VERSION_LESS "8.90.0") # old system include(${VTK_USE_FILE}) add_executable(ClipClosedSurface MACOSX_BUNDLE ClipClosedSurface.cxx ) target_link_libraries(ClipClosedSurface PRIVATE ${VTK_LIBRARIES}) else () # include all components add_executable(ClipClosedSurface MACOSX_BUNDLE ClipClosedSurface.cxx ) target_link_libraries(ClipClosedSurface PRIVATE ${VTK_LIBRARIES}) # vtk_module_autoinit is needed vtk_module_autoinit( TARGETS ClipClosedSurface MODULES ${VTK_LIBRARIES} ) endif ()
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
Be sure to add the VTK bin directory to your path. This will resolve the VTK dll's at run time.