[Proj] Any access to geodetic[sic] functions ??

Christopher Barker Chris.Barker at noaa.gov
Wed Nov 12 12:11:48 EST 2008

Gerald I. Evenden wrote:
> If you want to be lazy *and* do it the right way then for a very good 
> procedure to calculate inter point distances see:
> http://www.ngs.noaa.gov/PC_PROD/Inv_Fwd/
> and algorithm details published in:
> www.ngs.noaa.gov/PUBS_LIB/inverse.pdf

> At one time a program called 'geod' was distributed with my versions of proj4 
> but it was based upon a poorer algorithm has has been dropped.

> I made a C version of the Vincente procedures but have not distributed it.
>> I'm not opposed to treating them as a core capability but I do think some
>> consideration should be given to the API before this would occur.  Ideally
>> this would be something someone else than me might take on (possibly with
>> some advice from me).

That would be great -- I think having this bundled up in a library with 
a decent API would be very useful to the community. I know I would use it.

I think I'd rather see it as an independent library, perhaps used by 
Proj, rather than built in to Proj, but it's not a huge difference.

Now we just need someone with a bit of time to take a lead on developing 
the API....


Christopher Barker, Ph.D.

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Chris.Barker at noaa.gov

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