How to use patch/fill on a polarplot

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Jakob Sievers
Jakob Sievers 2019-3-21
评论： Adam Danz 2025-9-30
Hi all
I can't seem to get this right, so I figure I better ask someone with more experience:
How do I use patch/fill to fill in a polygon in a polarplot setting?
Based on the example listed in the help for polarplot: How do I fill in this triangle with e.g. the color red?
t = 0 :pi/1.5: 2*pi;
pp=polarplot(t, sin(2*t).*cos(2*t), '--r');

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Divyajyoti Nayak
Divyajyoti Nayak 2025-6-18
Hi @Jakob Sievers,
From MATLAB R2025a, the 'patch' function now works on polar axes. Here's some sample code for it and the documentation to help out:
clc
clear
p = polaraxes;
r = [0;1;1];
theta = [0;pi/3;2*pi/3];
patch(p,theta,r,'red');
'patch' : https://www.mathworks.com/help/releases/R2025a/matlab/ref/patch.html

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