Update plot on Axes in a Matlab GUI

Hi, I´m simulating a SIMULINK model and in this model I store some variables in the Worskspace.

I have a GUI and if AFTER the simulation I click on some buttons I have the plot of a certain variable.

An example of the plot of the 'Force' variable is this one:

% --- Executes on button press in plot_force_button.
function plot_force_button_Callback(hObject, eventdata, handles)
% hObject    handle to plot_force_button (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
force = evalin('base', 'force');
axes(handles.axes7)
plot(force.time, force.signals.values,'r','LineWidth',2)
% xlabel('Time [s]')
ylabel('Force [N]')
grid on
title('Force Applied to the DE')

I would like to update the plot as the simulation runs.

I know it´s possible to do it with the Timer of MATLAB but I didn´t understand how :(.

Can you help me please?

Fab.

Answer 1

[David Sanchez]

Take a look at the drawnow command. You will need it to draw your plot as the simulation goes.

doc drawnow

Answer 2

[chef13]

With drawnow it´s not working in real time!

I wrote in the run_button callback:

function run_button_Callback(hObject, eventdata, handles)
set_param('DEGREEN_Model_backup_3','SimulationCommand','start');
force = evalin('base', 'force');
axes(handles.axes7)
plot(force.time, force.signals.values,'r','LineWidth',2)
drawnow
% xlabel('Time [s]')
ylabel('Force [N]')
grid on
title('F_{ext} Applied to the DE')

But it is only drawing the last values stored in 'force' variable.

I´m quite sure that I have to use the timer objects but I have no clue how to do it!

[ahasan ratul]

could you find the solution? I am having a same problem with drawnow command in a gui axes. don't know how to solve it.