ECG signal in my GUI

I want to make an ECG simulator in MATLAB GUIDE. How can i see running ECG signals in my GUI. I do not want plot, drawnow or comet function because they will not help me plot waveforms as exactly we seen in an ECG machine.

A sample ecg simulator link https://www.skillstat.com/tools/ecg-simulator

Answer 1

[Rik]

If you don't want to use those functions, you'll have to generate an image, which will be very slow.

A good idea might be to use plot to plot the signal itself, set the graphics the way you want them, and simulate movement by changing the xlim. That way you can create the loop. You can also just delete the line object plot returns and replot that every loop.

[Gopika Akhil]

I tried to put the ECG signal in a loop. But it is not working. Kindly can you give some suggestions to improve the code. A portion of the code is added.

fid= fopen('E:\ecg.txt'); s = textscan(fid,'%f'); fclose(fid); x=s{1}; x=x(1:1:40000); len = 40000;

        for(inx = 1:40000)
             plotSig(inx) = x(1);

             numInc=2;
             if inx~=1

             for(j = inx-1:-1:1)
                  plotSig(j) = x(numInc);
                  numInc=numInc+1 ;

             end
             end

             plot(plotSig);
             hold on;
 plotSig = 0;
        end

[Gopika Akhil]

Thanks, The issue got resolved.