[postgis-users] Great circle as a linestring

Colin Wetherbee cww at denterprises.org
Thu Feb 21 14:57:40 PST 2008


I'm looking for a function to approximate a partial great circle (eg. 
the route taken when flying from London to Tokyo) as a LINESTRING or 
something similar.

Does such a beast exist?  If not, do you have any pointers on how to go 
about implementing that kind of a function in, say, PL/pgSQL?



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