[automation]

function model_open(handles)
% Make sure the diagram is still open
if isempty(find_system('Name','f14')),
open_system('f14'); open_system('f14/Controller')

set_param('f14/Controller/Gain','Position',[275 14 340 56])

figure(handles.F14ControllerEditor)
% Put values of Kf and Ki from the GUI into the Block dialogs
set_param('f14/Controller/Gain','Gain',...
get(handles.KfCurrentValue,'String'))
set_param('f14/Controller/Proportional plus integral compensator',...
'Numerator',...
get(handles.KiCurrentValue,'String'))
end
%endfunction model_open

如上的红字中，‘position’的位置是怎么确定的，要怎么知道是[275 14 340 56]，用什么方法确定的？