MATLAB: Getting vertices of patch object after rotation .

patchrotationvertices

Hello all , I am inserting a patch object and then rotating it about some angle . How can I get vertices of patch object after rotation ? thank you

Best Answer

p = patch([0 0 0.1 0.1],[0 0.2 0.2 0],'b')
p.Vertices

p.XData
p.YData

Although I'm not sure how you are rotating it without passing to the XData, YData, or Vertices properties.

The old way (prior to 2014b):

myVerts = get(p,'Vertices');

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MATLAB: Do I get the error “Invalid or deleted object.” for the following code

The reason you're getting the error is because you're updating p.XData where p is the output to polarscatter() however your call to polarplot() overwrites that axis so p is gone.

A solution is to grab the axis handle of polarscatter(), hold the axis, and pass the handle to your two calls to polarplot().

Grab the handle, hold the axis

p = polarscatter(theta(1),rho(1),'o','Filled','red');
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Pass the handle to polarplot()

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I did not entirely see what you precisely meant by "increase the radius" but here I offer you an example of changing the properties. For instance, using the command below, you can double the positions of the nodes horizontally.

p.XData = 2*p.XData;

Likewise, you can double them vertically.

p.YData = 2*p.YData;

Best Answer

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