function dotsInCircles(d, c)
% Draw d random dots in each of c concentric rings

% Set up figure window
close all;  figure(1);  axis('equal');  axis([-c c -c c])
hold on

% Put dots in the area between circles with radii r and (r-1)
for r= 1:c
    % Draw d dots
    for count= 1:d
        theta= randDouble(0, 360);
        radius= randDouble(r-1, r);
        [x, y]= polar2xy(radius, theta);
        drawColorDot(x, y, rem(r,2));
        pause(0.01);
    end
end

hold off