VTK/Examples/Cxx/GeometricObjects/PlanesIntersection

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PlanesIntersection.cxx

#include <vtkSmartPointer.h>
#include <vtkPoints.h>
#include <vtkPlanesIntersection.h>
#include <vtkSphereSource.h>
 
int main(int, char *[])
{
  vtkSmartPointer<vtkSphereSource> sphereSource =
    vtkSmartPointer<vtkSphereSource>::New();
  sphereSource->Update();
 
  double bounds[6];
  sphereSource->GetOutput()->GetBounds(bounds);
 
  vtkSmartPointer<vtkPoints> box =
    vtkSmartPointer<vtkPoints>::New();
 
  box->SetNumberOfPoints(8);
 
  double xMin, xMax, yMin, yMax, zMin, zMax;
  xMin = bounds[0]; xMax = bounds[1];
  yMin = bounds[2]; yMax = bounds[3];
  zMin = bounds[4]; zMax = bounds[5];
 
  box->SetPoint(0, xMax, yMin, zMax);
  box->SetPoint(1, xMax, yMin, zMin);
  box->SetPoint(2, xMax, yMax, zMin);
  box->SetPoint(3, xMax, yMax, zMax);
  box->SetPoint(4, xMin, yMin, zMax);
  box->SetPoint(5, xMin, yMin, zMin);
  box->SetPoint(6, xMin, yMax, zMin);
  box->SetPoint(7, xMin, yMax, zMax);
 
  vtkSmartPointer<vtkPlanesIntersection> planesIntersection =
      vtkSmartPointer<vtkPlanesIntersection>::New();
  planesIntersection->SetBounds(bounds);
 
  int intersects = planesIntersection->IntersectsRegion(box);
 
  std::cout << "Intersects? " << intersects << std::endl;
 
  return EXIT_SUCCESS;
}

CMakeLists.txt

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