I need code to sketch circle with interfaces (interior arcs)

Question

Lawrence Tom 2021-5-5

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https://ww2.mathworks.cn/matlabcentral/answers/822420-i-need-code-to-sketch-circle-with-interfaces-interior-arcs

编辑： Image Analyst 2021-5-13

Circle with interfaces.PNG

Hi all,

Can someone please help with code that can create the plot in the figure below?

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Answer 1

Image Analyst 2021-5-5

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See the FAQ to plot the circle:

https://matlab.fandom.com/wiki/FAQ#How_do_I_create_a_circle.3F

For the other curves, you'd need their coordinates, which you can get if you have an equation for them.

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Answer 2

Kartikay Sapra 2021-5-12

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编辑：Image Analyst 2021-5-13

在 MATLAB Online 中打开

function plotcircle(r,x,y)
    plot(r*exp(j*(0:pi/100:2*pi))+x+j*y);
end

Use this method to plot the main circle with radius 0.5.

There is a pattern for inner segments.

The centre becomes (0.5, 0) and the radius increments by 0.1

Then for the final circles the centre changes to (0.5, 1).

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Image Analyst 2021-5-13

编辑：Image Analyst 2021-5-13

Certainly the radii of the arcs are different, but I'm not sure all those arcs have the same center. I'm pretty sure they aren't centered at the same two points. But the tricky part is how to get the inner circle segments to stop exactly at the outer circle. How do you do that? Hint: I'd use inpolygon().

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