How would I change the color of the angular axes without changing the color of the grid lines in polar plot

How would I change the color of the angular axes without changing the color of the grid lines in polar plot, Fig. 1. So, I can clearly see the color difference between the edge line and grid lines, as shown in Fig. 2.

[Jan]

What about simply drawing a circle on top of the wanted line?

[irfan Ullah]

Thank you Jan for the reply.

Don't worry about the circles. I just want to know how can I change the color of the theta line and grid lines.

[Jan]

You asked "change color of the angular axes without changing the color of the grid lines" at first. Now you want to change the grid lines also? What exactly is "the theta line"?

[irfan Ullah]

Sorry, I just want to change the color of the angular axes to black!

Answer 1

[Jan]

AxesH = polaraxes;

theta = 0:0.01:2*pi;
rho   = sin(2*theta).*cos(2*theta);
polarplot(AxesH, theta, rho)

AxesH.GridColor = [1, 0, 0];

You can modify the Properties of AxesH.RAxis and AxesH.ThetaAxis also.