How can I fill the inside circle with any color?

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Shreen El-Sapa 2023-12-17

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2061432-how-can-i-fill-the-inside-circle-with-any-color

评论： Star Strider 2023-12-17

st1.jpg

too long code

回答（1 个）

Star Strider 2023-12-17

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2061432-how-can-i-fill-the-inside-circle-with-any-color#answer_1372987

在 MATLAB Online 中打开

st1.jpg

Try something like this —

imshow(imread('st1.jpg'))

a = linspace(0, 2*pi, 500).';

r = [1 2];

x = r.*cos(a);

y = r.*sin(a);

figure

hp1 = plot(x, y);

hold on

patch(hp1(1).XData, hp1(1).YData, [0.1 0.5 0.9])

hold off

axis('equal')

You will need to choose the correct (x,y) data for the inner circle. Then use the patch function to fill it.

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Shreen El-Sapa 2023-12-17

thanks

Star Strider 2023-12-17

My pleasure!

The entire code may be too long, however saving the data that created that plot to a .mat file, and posting the code that plotted it from those data might be enough.

A less favorable option for me would be to upload the .jpg image as a .fig file instead. I may be able to work with it in that context, since I might be able to get the data from it. Some plots are relatively straightforward to work with and others can be incredibly difficult.

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