VTK/Examples/Cxx/PolyData/ClosedSurface

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ClosedSurface.cxx

#include <vtkSmartPointer.h>
#include <vtkSphereSource.h>
#include <vtkFeatureEdges.h>
 
int main(int, char *[])
{
  // Create a sphere
  vtkSmartPointer<vtkSphereSource> sphereSource = 
    vtkSmartPointer<vtkSphereSource>::New();
  sphereSource->Update();
 
  vtkSmartPointer<vtkFeatureEdges> featureEdges = 
    vtkSmartPointer<vtkFeatureEdges>::New();
  featureEdges->FeatureEdgesOff();
  featureEdges->BoundaryEdgesOn();
  featureEdges->NonManifoldEdgesOn();
  featureEdges->SetInputConnection(sphereSource->GetOutputPort());
  featureEdges->Update();
 
  int numberOfOpenEdges = featureEdges->GetOutput()->GetNumberOfCells();
 
  if(numberOfOpenEdges > 0)
    {
    std::cout << "Surface is not closed" << std::endl;
    }
  else
    {
    std::cout << "Surface is closed" << std::endl;
    }
 
  return EXIT_SUCCESS;
}

CMakeLists.txt

cmake_minimum_required(VERSION 2.8)
 
PROJECT(ClosedSurface)
 
find_package(VTK REQUIRED)
include(${VTK_USE_FILE})
 
add_executable(ClosedSurface MACOSX_BUNDLE ClosedSurface.cxx)
 
if(VTK_LIBRARIES)
  target_link_libraries(ClosedSurface ${VTK_LIBRARIES})
else()
  target_link_libraries(ClosedSurface vtkHybrid vtkWidgets)
endif()

Download and Build ClosedSurface

Click here to download ClosedSurface. and its CMakeLists.txt file.

Once the tarball ClosedSurface.tar has been downloaded and extracted,

cd ClosedSurface/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:

./ClosedSurface

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.