plotting trajectory direction of a path

Hi,

I have a set of points (lat, long) which I eould like to plot as a trajectory path. on top of that, I'd like to add an arrow for the direction of the movement.

How can I do this?

Note, I'm using MATLAB R14

Note2: I can have small set size (1000 points) and can have huge set size (hundred thousand of points)

Answer 1

[Image Analyst]

See plot and quiver

[michael]

I do use quiver, but It barely seen in figure.

When I do a copy of a figure to populate it in word, instead of arrows I see big black point on the trace :(

[Image Analyst]

Try exportgraphics or copygraphics

Try annotation instead of quiver. Look into options that let you control the size of the arrow's parts.

[michael]

annottation requires tha xand y will be between 0 and 1, however, I'm using lat long which is not so between 0 and 1

the exportgraphics or copygraphics not supported by MATLAB R14

[Image Analyst]

Ok, can you upgrade? And did you check out the options for changing the appearance of the arrows?