Method ReadMINCFileAttributes

IO/MINC/vtkMINCImageReader.cxx:314–686

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

//------------------------------------------------------------------------------
int vtkMINCImageReader::ReadMINCFileAttributes()
{
  // If the filename hasn't changed since the last time the attributes
  // were read, don't read them again.
  if (!this->FileNameHasChanged)
  {
    return 1;
  }

  // Reset the MINC information for the file.
  this->MINCImageType = 0;
  this->MINCImageTypeSigned = 1;

  this->NumberOfTimeSteps = 1;
  this->DirectionCosines->Identity();

  // Orientation set tells us which direction cosines were found
  int orientationSet[3] = { 0, 0, 0 };

  this->ImageAttributes->Reset();

  // Miscellaneous NetCDF variables
  int status = 0;
  int ncid = 0;
  int dimid = 0;
  int varid = 0;
  int ndims = 0;
  int nvars = 0;
  int ngatts = 0;
  int unlimdimid = 0;

  if (this->OpenNetCDFFile(this->GetFileName(), ncid) == 0)
  {
    return 0;
  }

  // Get the basic information for the file.  The ndims are
  // ignored here, because we only want the dimensions that
  // belong to the image variable.
  status = nc_inq(ncid, &ndims, &nvars, &ngatts, &unlimdimid);
  if (status != NC_NOERR)
  {
    vtkMINCImageReaderFailAndClose(ncid, status);
    return 0;
  }
  if (ndims > VTK_MINC_MAX_DIMS)
  {
    vtkErrorMacro("MINC file has " << ndims
                                   << ", but this reader"
                                      " only supports "
                                   << VTK_MINC_MAX_DIMS << ".");
    return 0;
  }

  // Go through all the variables in the MINC file.  A varid of -1
  // is used to signal global attributes.
  for (varid = -1; varid < nvars; varid++)
  {