hello
no need to use meshgrid here (why ??)
try this instead
the centers and circles are plotted with same color here (but different color at each iteration)
N=10;
R= randi ([5 20],1,N); % radii
xc = randi ([-5 10],1,N); % x centers
yc = randi ([8 15],1,N); % y centers
th = linspace(0,2.*pi) ;
% plot
CM = jet(N); % See the help for COLORMAP to see other choices.
figure
hold on
for ck = 1:N
xcircle = xc(ck) + R(ck)*cos(th) ;
ycircle = yc(ck) + R(ck)*sin(th) ;
% a=rand(1,3); % color triplet value , so below the center and the circle are plotted with same color (but different at each iteration)
a=CM(ck,:); % color triplet value , so below the center and the circle are plotted with same color (but different at each iteration)
plot(xc(ck),yc(ck),'Marker','*','color',a,'DisplayName',num2str(ck));
plot(xcircle,ycircle,'color',a,'DisplayName',num2str(ck));
end
axis equal
title(sprintf('Number of circles = %d',N))
