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Cover shapes in background with filled shapes in foreground

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Saeid
Saeid on 2 Apr 2020
Edited: Saeid on 2 Apr 2020
I would like to draw shapes using the polyshape function, e.g. by writing:
x0=[0 0 200 200]; y0=[10 0 0 10]
SquareShape=polyshape(x0,y0)
plot(SquareShape)
hold on
ElmX=[0 5 10 20 25 30 40 40 60 70 85 95]
ElmY=[12 -2 12 -2 12 -2 12 -2 12 -2 12 -2]
plot(ElmX,ElmY)
hold on
x1=[10 10 20 20]; y1=[10 0 0 10]
SquareShape=polyshape(x1,y1)
plot(SquareShape)
but when I run the routine it generates transparent pictures, whereas I want the last shape created last (in this case the one created in the line before last) to cover the surface beneath itself.

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