[Proj] how to convert between long-lat-depth coordinates to Cartisian coordinates

[support.mn at elisanet.fi]

> I need to convert data from longitudinal,latitudes and depth coordinates
> to the Cartesian Coordinates. what is the command to use?
> 

Are you using proj-4 as a library or just wanting to convert some coordinate
data file to projected coordinates?

There is the "cs2cs", wihich can be used to convert coordinates

http://proj.maptools.org/man_cs2cs.html

Basicly what ever, just follow the documentation that was included in the
proj-4 package.

Regards: Janne