VTK/Examples/Cxx/PolyData/DataBounds

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This examples gets the bounds of a dataset. Note that Update() must be applied to create the output of the filter.

Bounds.cxx

#include <vtkSphereSource.h>
#include <vtkSmartPointer.h>
#include <vtkPolyData.h>
#include <vtkXMLPolyDataReader.h>
 
int main(int argc, char *argv[])
{
  vtkSmartPointer<vtkPolyData> polyData =
    vtkSmartPointer<vtkPolyData>::New();
 
  if (argc > 1)
    {
    vtkSmartPointer<vtkXMLPolyDataReader> reader =
      vtkSmartPointer<vtkXMLPolyDataReader>::New();
    reader->SetFileName ( argv[1] );
    reader->Update();
    polyData = reader->GetOutput();
    }
  else
    {
    vtkSmartPointer<vtkSphereSource> modelSource =
      vtkSmartPointer<vtkSphereSource>::New();
    modelSource->Update();
    polyData = modelSource->GetOutput();
    }
 
  double bounds[6];
  polyData->GetBounds(bounds);
 
  std::cout  << "xmin: " << bounds[0] << " " 
             << "xmax: " << bounds[1] << std::endl
             << "ymin: " << bounds[2] << " " 
             << "ymax: " << bounds[3] << std::endl
             << "zmin: " << bounds[4] << " " 
             << "zmax: " << bounds[5] << std::endl;
 
  return EXIT_SUCCESS;
}

CMakeLists.txt

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