# Plotting x,y coordinates and vectors with octave

I have a data set containing the recorded data from a car's motion (latitude,longitude, and heading). I'd like to plot the (lat,lon) points on a 2D plot with a unit vector pointing in the direction of the car's heading at each point. The heading is given in azimuth degrees so I think I would first have to convert that to radians then calculate the (x,y) point that represents the head of the unit vector.

I don't have any trouble plotting the (lat,lon) points but I have no idea about the vectors. I'm pretty new to Octave but I do know at least basic C/C++. An animated plot would be even better if anyone knows how to set that up.

quiver(x, y, u, v);