MATLAB: Unwanted circles in graph (Simulink)

dc motorsimulink

I am trying to analyze a DC motor but in one of my graphs I get circles on all my data points (sample time 0.001)
The only graph where this happens is after the multiplication of the voltage with a discrete transfer function. (see pictures 1, 2 and 3)
Even weirder is the fact that after a saturation the circles apear gone (see picture 4)
Does anyboy have an idea what causes the circles to appear because i don't see how the are created and they don't seem to influence the rest of my simulation
Simulink blocks.PNG Picture 1
Graph with circles.PNG Picture 2
Graph with circles zoomed in.PNG Picture 3
Graph after saturation.PNG Picture 4

Best Answer

You have enabled markers in your scope window. You can change line and marker styles by going to the 'View' and then 'Style...' button in the scope window. If you want to disable the Markers, select 'none'.
This is purely a visual option and has no effect on your simulation. For your reference, when enabling markers, the scope window will use one marker on each data sample. This can be helpful when analysing sample-by-sample behaviour in discrete simulation models.
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