undo# view_transf.undo() → int# Undo the last transformation or tool definition. Examples:ensight.view_transf.function("global") ensight.view_transf.rotate(2.510301e+01,7.117291e+01,0.000000e+00) ensight.view_transf.undo() ensight.view_transf.redo() Returns:zero on success, non-zero on error