Randomly moving circles in a graph

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passioncoding
passioncoding 2019-5-1
评论： Walter Roberson 2019-5-4
I have created circles by the help of fill command. how can I make them movingly linearly.
fill(xobs(k)+robs(k)*cos(theta),yobs(k)+robs(k)*sin(theta),[1 0 0]);
They can be moving in circular motion.

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Walter Roberson
Walter Roberson 2019-5-1
You can record the handles returned by fill(), which will be handles of patch objects. The patch objects that are created will have a Vertices property which will be an N x 2 array. You can change the Vertices property to update the locations, such as
rot = makehgtform('zrotate', 15*180/pi);
V = h.Vertices;
temp = [V,zeros(size(V,1),2)] * rot;
h.Vertices = temp(:,1:2);
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passioncoding
passioncoding 2019-5-4
the code doesnot recognize 'Vertices' it says Invalid or deleted object. Plus there is no motion in circles. only a single circle is plot
Walter Roberson
Walter Roberson 2019-5-4
Code enclosed to prove that it does work. Also enclosed is a movie with proof that it works.

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