Inserting a circle at specific coordinates

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Rasmus
Rasmus 2014-2-19
编辑： Mischa Kim 2014-2-19
I have a group of data, which when plotting gives me a circle. I want to have the circles center to be at (-1,1)in another plot of data.
How do i do this?
I hope someone can help me, thank you :)

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Mischa Kim
Mischa Kim 2014-2-19
编辑：Mischa Kim 2014-2-19
Rasmus, for the general case (circle with noise) check out this entry in the File Exchange. The app will give you radius R and the center of the circle (xc,yc). With this data you can then simply
t = linspace(0,2*pi,100);
x_new = R*cos(t) + xc_new;
y_new = R*sin(t) + yc_new;
plot(x_new,y_new)
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Mischa Kim
Mischa Kim 2014-2-19
If your add-on question is about adding the circle to another plot then use
hold on
before the plot commands.

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Rasmus
Rasmus 2014-2-19
sorry I just edited the question, as I forgot to mention something.

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