Remove scaling in quiver plot (Octave)

Question

I'm want to plot electric field of two point charges with Octave. I have managed to do that with quiver() function. But since I am more interested in the direction of the field than actual size I want to scale all arrows of the quiver plot to the same size and keep only their direction.

My question is how to scale arrows on the quiver() plot to same length? I found this topic in documentation but don't know how to use it.

Here is my code responsible for plotting:

h = quiver(xx, yy, Ex, Ey);

Answer 1

I managed to scale arrows to same size with definition of unit vector. I divided each component of an arrow, x and y (in my case Ex and Ey) with length of an arrow which is defined as sqrt(x^2 + y^2).

Here is the code:

Exx = ((Ex)./(Ex.^2 + Ey.^2).^0.5);
Eyy = ((Ey)./(Ex.^2 + Ey.^2).^0.5);