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<TITLE>RE: [postgis-users] Re: Polygon and north pole</TITLE>
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<P><FONT SIZE=2>Paul --<BR>
<BR>
> Jørn Vegard Røsnes wrote:<BR>
><BR>
> > If I utilize the PostGIS transform function to transform the search polygon to<BR>
> > a (polar) stereographic geometry (SRID 32661) and execute spatial queries to<BR>
> > match the product geometries in (polar) stereographic.<BR>
> ><BR>
> > Will PostGIS then use the "stereographic space", not the planar/Euclidean<BR>
> > space?<BR>
><BR>
> Yes, but that all your data that is *not* at the poles will be<BR>
> problematic... certainly you won't be able to do two poles at once. If<BR>
> you have truly global data (few do, but you could be one of them) then a<BR>
> truly global system is required. We are proposing a "geography" type<BR>
> for full geodetic support, but looking for funders as it is not a<BR>
> trivial quantity of work.<BR>
><BR>
> P<BR>
<BR>
Paul --<BR>
<BR>
Not being able to commit to anything, you understand -- far too low in the foodchain -- but if the money were to be forthcoming, do you have a rough estimate of how long it might take to deliver a Beta version of this ?<BR>
<BR>
Thanks,<BR>
<BR>
Greg W.<BR>
<BR>
<BR>
Greg Williamson<BR>
Senior DBA<BR>
GlobeXplorer LLC, a DigitalGlobe company<BR>
<BR>
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