VTK/Examples/Cxx/PolyData/Hull

From KitwarePublic
Jump to: navigation, search

Hull.cxx

#include <vtkPoints.h>
#include <vtkXMLPolyDataReader.h>
#include <vtkXMLPolyDataWriter.h>
#include <vtkSmartPointer.h>
#include <vtkHull.h>
 
int main(int argc, char *argv[])
{
  // Parse command line arguments
  if(argc != 2)
    {
    std::cout << "Required arguments: Filename" << std::endl;
    return EXIT_FAILURE;
    }
 
  vtkSmartPointer<vtkXMLPolyDataReader> reader = 
    vtkSmartPointer<vtkXMLPolyDataReader>::New();
  reader->SetFileName(argv[1]);
  reader->Update();
 
  vtkSmartPointer<vtkHull> hullFilter = 
    vtkSmartPointer<vtkHull>::New();
  hullFilter->SetInputConnection(reader->GetOutputPort());
  hullFilter->AddCubeFacePlanes ();
  hullFilter->Update();
 
  vtkSmartPointer<vtkXMLPolyDataWriter> writer = 
    vtkSmartPointer<vtkXMLPolyDataWriter>::New();
  writer->SetInputConnection(hullFilter->GetOutputPort());
  writer->SetFileName("hull.vtp");
  writer->Write();
 
  return EXIT_SUCCESS;
}

CMakeLists.txt

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

Download and Build Hull

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

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

cd Hull/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:

./Hull

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.