i have to convert an UTM coordinate to cartesian coordinate. how i can do this?
I have to do that to convert an coordiante in specific datum (SAD69) to datum (WGS 84).
thx
i have to convert an UTM coordinate to cartesian coordinate. how i can do this?
I have to do that to convert an coordiante in specific datum (SAD69) to datum (WGS 84).
thx
You can try proj4. It can do many conversion.
UTM coordinates are already the best approximation of a cartesian X,Y plane you will achieve. Just directly use the coordinates for your follow up cartesian calculations.
But this is valid only for two coordinates withing the same UTM zone.
Don't do inter zone calculations. (This is the draw back of UTM)
UTM coordinates are in meters.
Looks like theres a similar question here : convert GPS latitude longitude to Cartesian X and Y
with a link to a wiki page which has all you need to know - probably