[gdal-dev] Generating Lat, long Cordinates with bearing line and angle

[Phil Scadden]

> I have a *lat, lon* coordinate with a known projection system I assume 
> it a initial point. I want to generate a next Position with the an 
> *angle* with (horizontal/vertical)  and *bearing length*  in lat,lon 
> coordinates and complete it with angles and bearing lengths to form a 
> polygon

Try http://www.movable-type.co.uk/scripts/latlong.html#destPoint


However, you need to be very careful with this as calculations are being 
done assuming a spherical earth. Fine is distances arent large enough 
for the ellipsoidal effects to affect accuracy. For large distances, you 
need to use Vincent' s_formula - 
http://en.wikipedia.org/wiki/Vincenty%27s_formulae which require iteration.


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