[gdal-dev] Re: Looking for advice on finding neighboring features

Joaquim Luis jluis at ualg.pt
Wed Dec 3 14:00:11 EST 2008

Kenn Sebesta wrote:
> Based on some conversations of the list, I've come to understand a
> little better what I'm looking for, so I'll update my original
> question here so it's a bit clearer.
> I need to write a program that automatically determines elevation
> profiles based on a predetermined path/route. This data needs to come
> be in some form that it automatically can be read by further functions
> in my controls package. I plan to do everything in C, but any other
> processing language would be acceptable.

If you release the shapefile constraint, GMT's grdtrack program is lightning fast
in interpolating a grid into a series of x,y positions.

Joaquim Luis

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