How can i increase the number of circles in a polar grid?

How can i increase the number of circles in a polar grid?

Answer 1

[Youssef Khmou]

In new version , there might be an option for increasing the number, however i made manual example here, in order to use it, try to define the range of your data and apply this technique :

   % Polar plot with increased number of lines 
 r=0:1:10;
 t=0:0.1:2*pi;
 figure; grid off;
 hold on; 
 for n=1:length(r)

    plot(r(n)*cos(t),r(n)*sin(t),'-.');

 end
 % Lines
 R=r(end);
 N=10; % Number of lines 
 for n=1:N
    x=[0 R*cos(2*pi*(n-1)/N)];
    y=[0 R*sin(2*pi*(n-1)/N)];
    h=line(x,y);
    set(h,'LineStyle','-.');
 end
 % Plot the data :  EXAMPLE OF SINUSOIDAL DATA
 z=8*sin(2*pi*t);
 polar(t,z);
 title(' 8 sin(2*\pi*t)');