[gdal-dev] Lat/long & distance/heading calculation

[Ray Gardener]

If you can use UTM or similar coords, then

x = cos(heading) * distance + start_pos_x
y = sin(heading) * distance + start_pos_y

Assuming heading in clockwise radians with north = up.

Then you can inverse transform (x, y) from UTM to lat/lon.

Ray


Meek, Allan (Contractor) wrote:
> This is a bit of a long shot, but I'm hoping I might find some help
> here. 
> 
> I have a start lat/long position, a distance, and a heading. Is there an
> easy way (in OGR or elsewhere) to calculate the end lat/long position
> (after travelling the given distance on the given heading)?
> 
> I have a working formula for calculating the distance and heading
> between two lat/long positions, but I wanted to see if I can get around
> having to rework this to solve my problem.
> 
> Any help would be appreciated!
> 
> Thanks,
> Allan
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