Method ExecuteInformation

IO/Image/vtkMetaImageReader.cxx:65–203

------------------------------------------------------------------------------

//------------------------------------------------------------------------------
void vtkMetaImageReader::ExecuteInformation()
{
  if (!this->FileName)
  {
    vtkErrorMacro(<< "A filename was not specified.");
    return;
  }

  if (!this->MetaImagePtr->Read(this->FileName, false))
  {
    vtkErrorMacro(<< "MetaImage cannot parse file.");
    return;
  }

  this->SetFileDimensionality(this->MetaImagePtr->NDims());
  if (FileDimensionality <= 0 || FileDimensionality >= 4)
  {
    vtkErrorMacro(<< "Only understands image data of 1, 2, and 3 dimensions. "
                  << "This image has " << FileDimensionality << " dimensions");
    return;
  }
  vtkDebugMacro(<< "* This image has " << FileDimensionality << " dimensions");

  int i;

  switch (this->MetaImagePtr->ElementType())
  {
    case vtkmetaio::MET_NONE:
    case vtkmetaio::MET_ASCII_CHAR:
    case vtkmetaio::MET_LONG_LONG:
    case vtkmetaio::MET_ULONG_LONG:
    case vtkmetaio::MET_STRING:
    case vtkmetaio::MET_LONG_LONG_ARRAY:
    case vtkmetaio::MET_ULONG_LONG_ARRAY:
    case vtkmetaio::MET_FLOAT_ARRAY:
    case vtkmetaio::MET_DOUBLE_ARRAY:
    case vtkmetaio::MET_FLOAT_MATRIX:
    case vtkmetaio::MET_OTHER:
    default:
      vtkErrorMacro(<< "Unknown data type: " << this->MetaImagePtr->ElementType());
      return;
    case vtkmetaio::MET_CHAR:
    case vtkmetaio::MET_CHAR_ARRAY:
      this->DataScalarType = VTK_SIGNED_CHAR;
      break;
    case vtkmetaio::MET_UCHAR:
    case vtkmetaio::MET_UCHAR_ARRAY:
      this->DataScalarType = VTK_UNSIGNED_CHAR;
      break;
    case vtkmetaio::MET_SHORT:
    case vtkmetaio::MET_SHORT_ARRAY:
      this->DataScalarType = VTK_SHORT;
      break;
    case vtkmetaio::MET_USHORT:
    case vtkmetaio::MET_USHORT_ARRAY:
      this->DataScalarType = VTK_UNSIGNED_SHORT;
      break;
    case vtkmetaio::MET_INT: