How can I can I draw multiple circles with figure that have character into them

Question

Milton Vera de la Torre 2022-4-24

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https://ww2.mathworks.cn/matlabcentral/answers/1703950-how-can-i-can-i-draw-multiple-circles-with-figure-that-have-character-into-them

回答： Image Analyst 2022-4-24

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Hello I made a Matlab project where I plotted two circles that represented electrical charges.

And i used this code

figure();
h=rectangle('Position',[xCn-a/2,yCn-a/2,a,a],'curvature',[1 1]);
set(h,'Facecolor',[0 0 0],'Edgecolor',[0 0 0]);
text(0.43,0.05,'-','Color','white','FontSize',30);
h=rectangle('Position',[xCp-a/2,yCp-a/2,a,a],'curvature',[1 1]);
set(h,'Facecolor',[1 0 0],'Edgecolor',[1 0 0]);
text(-0.6,0,'+','Color','white','FontSize',30);