VTK/Examples/Cxx/IO/GenericDataObjectReader

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GenericDataObjectReader.cxx

#include <vtkGenericDataObjectReader.h>
#include <vtkStructuredGrid.h>
#include <vtkSmartPointer.h>
#include <vtkPolyData.h>
#include <string>
 
int main ( int argc, char *argv[] )
{
  // Ensure a filename was specified
  if(argc != 2)
    {
    std::cerr << "Usage: " << argv[0] << " InputFilename" << endl;
    return EXIT_FAILURE;
    }
 
  // Get the filename from the command line
  std::string inputFilename = argv[1];
 
  // Get all data from the file
  vtkSmartPointer<vtkGenericDataObjectReader> reader = 
      vtkSmartPointer<vtkGenericDataObjectReader>::New();
  reader->SetFileName(inputFilename.c_str());
  reader->Update();
 
  // All of the standard data types can be checked and obtained like this:
  if(reader->IsFilePolyData())
    {
    std::cout << "output is a polydata" << std::endl;
    vtkPolyData* output = reader->GetPolyDataOutput();
    std::cout << "output has " << output->GetNumberOfPoints() << " points." << std::endl;
    }
 
  return EXIT_SUCCESS;
}

CMakeLists.txt

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