Showing Movement Direction

[Ben Madin]

G'day all,

I have been looking and reading, but I'm not sure I'm looking for the  
right thing.

I have a number of points from satellite based tracking, giving me a  
list of longitude, latitude and a timestamp. These are fairly  
regular, and although I can display the points on the map window and  
see where animals have moved to, I can't tell which way they moved  
just by looking. We vets need to know what came first...

So I thought I could convert adjacent points (temporally) into line  
segments, (earliest point first, latter point last), but I can't find  
anywhere in Mapserver that seem to explicitly explain how to do this  
(or whether it can be done).

Can anyone either :

	direct me to the right place, or
	
	give me a set of keywords which might get me to the right place, or
	
	advise me to give up for now?

cheers

Ben


-- 

Ben Madin
REMOTE INFORMATION

t : +61 8 9192 5455
f : +61 8 9192 5535
m : 0448 887 220
Broome   WA   6725

ben at remoteinformation.com.au





					Out here, it pays to know...









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