Statusbar parallel with computation and motors

Hellow, my programm works with two motors that acquite data and while this happens i want a statusbar in my gui to see how much time is already done an how mutch is remaining. I downloaded a statusbar at http://www.mathworks.com/matlabcentral/fileexchange/5912-status-progress-indicator but can't get it worked in parallel. It works always in serial way :(

Here is my code:

    function StartRecon_Callback(hObject, eventdata, handles)
    % hObject    handle to StartRecon (see GCBO)
    % eventdata  reserved - to be defined in a future version of MATLAB
    % handles    structure with handles and user data (see GUIDATA)
    t = serial('COM1','BaudRate',57600,'DataBits',8,'Stopbits',1,'ErrorFcn','Fout opgetreden!','Parity','none','FlowControl','none'); % rotations- motor
    u = serial('COM3','BaudRate',112500,'DataBits',8,'Stopbits',1,'ErrorFcn','Fout opgetreden!','Parity','none','FlowControl','none'); % microprocessor
    fopen(t)
    fopen(u)
    set(u,'TimeOut',1)
    load(['variables/meet.mat'])
    stappen = round(ang/0.9); % 1 step = 0.9° => calculate steps
    step = rotations/120; % divide 120 for 1 second per projection
    data_inten = zeros(as,1);
    inten = zeros(rotations,16)
    s=0;

    % for every slice
    for i=1:as
        %set statusbar for every slice
        stat = [ 'Scanning Layer ' int2str(i) ' ...'] %
        f=statusbar(stat);
        for p=0:0.01:1
           pause(stp); %wait
           if isempty(statusbar(p,f))
              break;
           end
        end
        i=0;
        % hier komt inlezen en verdraaien van de motor en micorcontroller
        for r=1:rotations
            fwrite(u,'5') % send 5 to receive data
            data = fread(u,34) % receive 34 bytes
            j=0;
            for k=2:2:32 % convert binary data to intensitys
                str = dec2hex(data(k))
                st = dec2hex(data(k+1))
                string = strcat(st,str)
                c = hex2dec(string)
                inten(r,j+1) = c*610*10^-6
                j=j+1
            end 
            s=s+stappen;
            if r < rotations % if r smaller than max rotate
                strm = [ 'p' int2str(s) '.' ] ;
                fprintf(t,strm) 
            end
        end
       data_inten{as}=inten; %set all data in data_inten

        % if end statusbar ask new slice 
        if ishandle(f)
            delete(f);
            text = [ 'Change height for ' int2str(ls) ' mm']
            if ( i < as)
                uiwait(msgbox(text,'Wait','modal'));
            end
            if i == as
                uiwait(msgbox('Acquisition successfully done!','Acquisition Done','Help Icon'))
            end
        end
    end
    save(['variables/meet.mat'],'data_inten','-append')
    fclose(t)
    fclose(u)
    delete(t)
    delete(u)
    open('DA_done.fig')
    close(gcbf)

Answer 1

[Ivan van der Kroon]

I addapted the example in the statusbar.m to show you can have them active simultaniously:

f=statusbar('Wait some seconds ...');
g=statusbar('Second wait ...');
for p=0:0.01:1
  pause(0.2);
  if isempty(statusbar(p,f))
      break;
  end
  if isempty(statusbar(p,g))
      break;
  end
end
if ishandle(f)
  delete(f);
  delete(g);
end

Just remeber to call the correct figure handle. Also note that they will be plotted at the same position, so if you want to see them in different positions, change the positions.

Btw, nice to keep your Dutch comments!

Answer 2

[Fiboehh]

I tried to set my code for the motor and microcontroller between for p=0:0.01:1 and pause(0.2); but it doesn't work... Please someone who helps me and say where my code has to stand. And sorry for the dutch comment :p

Answer 3

[Ivan van der Kroon]

To clarify a few things:

1) you have 3 for-loops (indexes i, r and p) where the first includes the others. Where exactly doe you want to have a statusbar?

2) the pause in the example in statusbar.m is just some arbitrary thing that takes time. The process what you want to monitor goes instead of that. Right now, your m-file is just waiting 0.2s every iteration.

3) i is changed inside its loop. To 0 (!) so it will never end. What do you want to do here?

If I correctly guess what you want here is to put two bars next to each other. Next introduce 3 for-loops (i,r and p) with the first including the others. The first bar will manage i and the second r.

I=4;P=1;R=10;

f=statusbar('Wait some seconds ...');
fpos=get(f,'position');

for i=1:I
  %     process#1
  pause(rand(i))

    for p=1:P
        %         process#2
    end

    g=statusbar('Second wait ...',g);
    set(g,'position',fpos+[fpos(3) 0 0 0])
    for r=1:R
        %         process#3
        pause(0.1)
        if isempty(statusbar(r/R,g))
            break;
        end
    end
    if isempty(statusbar(i/I,f))
        break;
    end
end

if ishandle(f) && ishandle(g)
  delete(f);delete(g);
end

Replace '% process#' by what you want to do there and remove the pauses because it is just an example of a matlab process be going on there. Note that the input to statusbar should be between 0 and 1.

Veel succes!