GUI (static text display question)

    percentage_complete=(1-(mxn-i)/mxn)*100;
    if percentage_complete > 0 && percentage_complete < 25
        set(handles.sonar_sali ent_percentage,'string','0')
    elseif percentage_complete> 25 && percentage_complete < 50 
        set(handles.sonar_salient_percentage,'string','25')
    elseif percentage_complete > 50 && percentage_complete < 75
        set(handles.sonar_salient_percentage,'string','50')
    elseif percentage_complete > 75 && percentage_complete < 100
        set(handles.sonar_salient_percentage, 'string','75')
    else 
        set(handles.sonar_salient_percentage,'string','100')
    end

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Sorry not familiar with matlab coding.

I am trying to use static text in matlab GUI. i changed the tag to sonar_salient_percentage

and I want the static text to change in the GUI once a condition is met.

Right now the static text is not even updating? any idea what to do.

I am trying to display the percentage of completeness so i know when the code will finish running.

[per isakson]

Your code look ok to me. Is the code snippet executed?

BTW: percentage_complete equal to 0, 25, 50, or 75 will display 100

[Bryce]

I have a similar question that I am about to ask. My question though is how to make a handle for static text boxes because handles are not automatically created (at least that is my understanding) through GUIDE. Are you sure that the static text box does in fact have the handle: "handles.sonar_salient_percentage"?

When I look at my code, by the static text box it says "empty - handles not created until after all CreateFcns called"

Answer 1

[Image Analyst]

You have a space in this line:

set(handles.sonar_sali ent_percentage,'string','0')

but the main problem is that this is in a loop where things are probably changing so fast that the GUI doesn't get a chance to update/repaint/refresh. To force it to do that, put this line after your if block:

drawnow;

That will force it to change the static text immediately. If it were me, I'd do this:

percentage_complete = (1-(mxn-i)/mxn)*100;
caption = sprintf('Percent done = %.1f %%', percentage_complete);
set(handles.sonar_salient_percentage, 'String', caption);
drawnow;