ITK/Examples/Meshes/ReadWrite: Difference between revisions

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itk::Mesh objects may be written and read to and from a variety of file formats.  In this example, a spherical mesh is created, written to file, and read back in in a format specified by the user.
{{warning|1=The media wiki content on this page is no longer maintained.  The examples presented on the https://itk.org/Wiki/* pages likely require ITK version 4.13 or earlier releases.  In many cases, the examples on this page no longer conform to the best practices for modern ITK versions.
}}


Contributed by: Davis Vigneault
[https://itk.org/ITKExamples[ITK Sphinx Examples]]
==ReadWrite.cxx==
<source lang="cpp">
// Include the relevant header files
#include "itkMesh.h"
#include "itkRegularSphereMeshSource.h"
#include "itkMeshFileWriter.h"
#include "itkMeshFileReader.h"
 
// Create convenience typedefs
const unsigned int Dimension = 3;
typedef float TCoordinate;
 
typedef itk::Mesh< TCoordinate, Dimension > TMesh;
typedef itk::RegularSphereMeshSource< TMesh > TSphere;
typedef itk::MeshFileReader< TMesh > TReader;
typedef itk::MeshFileWriter< TMesh > TWriter;
 
int main(int argc, char * argv[] )
{
 
  // The user can choose to provide a commandline argument
  // between 0 and 8, in order to specify the file type.
  // If no argument is provided, zero will be used.
  // If an invalid integer is provided, zero will be used.
  // If the integer is less than zero, zero will be used.
  // If the integer is greater than seven, seven will be used.
  int i = 0;
  if (argc == 2) i = atoi(argv[1]);
  i = std::max(std::min(i,8),0);
 
  // Create a string using the appropriate file extension.
  std::string fileName = "sphere";
 
  switch (i) {
    case 0: fileName += ".vtk"; break;
    case 1: fileName += ".byu"; break;
    case 2: fileName += ".fcv"; break;
    case 3: fileName += ".fsa"; break;
    case 4: fileName += ".fsb"; break;
    case 5: fileName += ".gii"; break;
    case 6: fileName += ".obj"; break;
    case 7: fileName += ".off"; break;
  }
 
  // Print out the file name.
  std::cout << "File Name: " << fileName << std::endl;
 
  // Create the sphere source, writer, and reader.
  TSphere::Pointer sphere = TSphere::New();
  TWriter::Pointer writer = TWriter::New();
  TReader::Pointer reader = TReader::New();
 
  // Set the writer's input and file name, then update.
  writer->SetInput( sphere->GetOutput() );
  writer->SetFileName( fileName );
  writer->Update();
 
  // Set the reader's file name, then update.
  reader->SetFileName( fileName );
  reader->Update();
 
  return EXIT_SUCCESS;
 
}
 
</source>
{{ITKCMakeLists|{{SUBPAGENAME}}}}

Latest revision as of 20:43, 31 May 2019

Warning: The media wiki content on this page is no longer maintained. The examples presented on the https://itk.org/Wiki/* pages likely require ITK version 4.13 or earlier releases. In many cases, the examples on this page no longer conform to the best practices for modern ITK versions.

[ITK Sphinx Examples]