How can I modify the s-function for the XY-Graph in Matlab-Simulink so that it clear the graph periodically or provide a marker for the head of the graph?

I know that I can edit the s-Funktion for the XY-Graph in Matlab-Simulink and change it according to my needs, but I'm not much familiar with the programming of s-function, so does anyone know, how could I change the sfunxy.m to clear the graph periodically or provide a marker for the head of the graph? Thank you!

Answer 1

[Mahfoud Alibrahim]

Hello, I found the following method, which could help:

you can edit the s-function for the XY-Graph in that you type the following instruction On MATLAB Command Window:

edit sfunxy.m

To provide the data-points with a marker you can do the following:

Go to the line(number about 239):

set(ud.XYLine, 'LineStyle','-');

and replace it with:

set(ud.XYLine, 'LineStyle','-', 'Marker','*');

To clear a part of the plot, go to the line (number about 396 in matlab 2015):

new_line = feval(@()hg2sample.ScopeLineAnimator('maxNumVertices',50000));

Here you can change the numbers of the 'maxNumVertices' to got the desired Display on the XY-Graph. For Exempel you can type 10 instead of 50000 to display just the last ten data-points in the XY-Graph.

Regards

Mahfoud