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How to plot a circle of some radius on a polar plot ?

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L K
L K 2017-3-18
编辑： Ron Beck 2018-3-2
eg. i want a small circle with origin as center of some radius...ON the POLAR plot

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采纳的回答

Walter Roberson
Walter Roberson 2017-3-18
th = linspace(0,2*pi,50);
r = 10;
polar(th,r+zeros(size(th)))
  2 个评论
Ron Beck
Ron Beck 2018-3-2
编辑：Ron Beck 2018-3-2
I have used this script and it works (changed polar to polarPlot) but can't run it as a function. Any ideas?

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更多回答（1 个）

Gabriel Malagon Carvajal
When is not center in the origen?
  1 个评论
Walter Roberson
Walter Roberson 2017-9-9
%need centres for demo purposes
xc = randn() * 5; yc = randn() * 5;
%the work
th = linspace(0,2*pi,50);
r = 10;
[x,y] = pol2cart(th,r);
[th1, r1] = cart2pol( x+xc, y+yc );
polar(th1, r1);

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