VTK/Examples/Cxx/Meshes/CellEdges

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CellEdges.cxx

#include <vtkSmartPointer.h>
#include <vtkTriangle.h>
#include <vtkCellArray.h>
#include <vtkPolyData.h>
#include <vtkIdList.h>
 
int main(int, char *[])
{
  vtkSmartPointer<vtkTriangle> triangle = 
    vtkSmartPointer<vtkTriangle>::New();
  triangle->GetPoints()->SetPoint(0, 1.0, 0.0, 0.0);
  triangle->GetPoints()->SetPoint(1, 0.0, 0.0, 0.0);
  triangle->GetPoints()->SetPoint(2, 0.0, 1.0, 0.0);
  triangle->GetPointIds()->SetId ( 0, 0 );
  triangle->GetPointIds()->SetId ( 1, 1 );
  triangle->GetPointIds()->SetId ( 2, 2 );
 
  std::cout << "The cell has " << triangle->GetNumberOfEdges() 
            << " edges." << std::endl;
 
  for(vtkIdType i = 0; i < triangle->GetNumberOfEdges(); i++)
    {
    vtkCell* edge = triangle->GetEdge(i);
 
    vtkIdList* pointIdList = edge->GetPointIds();
    std::cout << "Edge " << i << " has " << pointIdList->GetNumberOfIds() 
              << " points."  << std::endl;
 
    for(vtkIdType p = 0; p < pointIdList->GetNumberOfIds(); p++)
      {
      std::cout << "Edge " << i << " uses point " << pointIdList->GetId(p) 
                << std::endl;
      }
 
    }
 
 
  return EXIT_SUCCESS;
}

CMakeLists.txt

cmake_minimum_required(VERSION 2.8)
 
PROJECT(CellEdges)
 
find_package(VTK REQUIRED)
include(${VTK_USE_FILE})
 
if (APPLE)
  add_executable(CellEdges MACOSX_BUNDLE CellEdges.cxx)
else()
  add_executable(CellEdges CellEdges.cxx)
endif()
 
if(VTK_LIBRARIES)
  target_link_libraries(CellEdges ${VTK_LIBRARIES})
else()
  target_link_libraries(CellEdges vtkHybrid )
endif()
Retrieved from "http://batchmake.org/Wiki/VTK/Examples/Cxx/Meshes/CellEdges"
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