Inverse 3D geodetic distance calculation

Hi,

 

 

As in most things FME you will need to spend some time and create the tool yourself. For this kind of calculations a number of transformers come to mind, most probably the ExpressionEvaluator is something you should look into.

 

 

Itay

I really don't think the ExpressionEvaluator will be enough.  I need to transform from an arbitrary planar coordinate system to a spherical system mapped to the GRS80 ellipsoid, measure the difference in straight line lengh to account for the curvature of the earth at that particular location, and convert the result back into the units of the first coordinate system.