void SetDirectory(std::string const & dir);
void OrderGdcmFileList();
/// \warning Assumes all elements in the list have the same global infos.
/// Assumes the list is not empty.
void SetDirectory(std::string const & dir);
void OrderGdcmFileList();
/// \warning Assumes all elements in the list have the same global infos.
/// Assumes the list is not empty.