How can I plot a graph on a circumference?

Question

Riccardo Panza 2016-6-29

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https://ww2.mathworks.cn/matlabcentral/answers/292967-how-can-i-plot-a-graph-on-a-circumference

编辑： José-Luis 2016-6-29

Hi everybody, I would like to ask you how to draw a graph on a circumference. I have the displacement on the y axes and the angle on the x axes. I would transform that plot into the circumferential plot that I draw myself and I attache it to the file in the message. Thank you all! Riccardo

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Answer 1

José-Luis 2016-6-29

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https://ww2.mathworks.cn/matlabcentral/answers/292967-how-can-i-plot-a-graph-on-a-circumference#answer_227137

编辑：José-Luis 2016-6-29

在 MATLAB Online 中打开

Assuming the circle is centered on [0,0]:

 angle = 0:0.1:360;
 displacement = sind(6.*angle + 4);
 radius = 1;
 circx = radius*cosd(angle);
 circy = radius*sind(angle);
 plot(circx,circy); hold on;
 dispx = circx .* (radius + displacement)/radius;
 dispy = circy .* (radius + displacement)/radius;
 plot(dispx,dispy)
 axis equal