- reader_params[ "FileName" ].second = input_mesh_file;
- reader_params[ "PixelType" ].second = pixel_type;
- reader_params[ "MeshDimension" ].second = dimensions;
+ reader_params.SetValueAsString( "FileName", input_mesh_file );
+ reader_params.SetValueAsString( "PixelType", pixel_type );
+ reader_params.SetValueAsUint( "MeshDimension", dimensions );