btw, matey, I believe there are strong arguments as why polar coordinate systems (and I mean fully 3-D ones not constrained to an arbitrary spheroid) are the only truly natural means for encoding geodata, one applicable not only at the poles. You guys ever given any thought to this, or is everyone so locked into lat/lon that it's become the QWERTY coordinate system?
cheers --- Gregory Yetman <[EMAIL PROTECTED]> wrote: > Hi, > > I'm working on a project that focuses on polar > metadata and we'd like to > 'enable' the spatial searching for areas that cover > the poles. To do > this properly (avoid false matches), we want to do > the comparison in > spherical coordinates, i.e., > > http://en.wikipedia.org/wiki/Spherical_coordinates#Spherical_coordinates > > rather than lat/long. So we are looking for software > packages > (preferably open source) that will: > > - transform a lat/long box into spherical > coordinates > - intersect the result with a given set of extents > and return the matches > - optionally return the area of overlap in spherical > coordinates & lat/long > > I think that perhaps GeoServer/GeoTools may be able > to do this, but I > couldn't determine if it would be supported from my > admittedly quick > peek at the documentation. > > Any other possibilities? > > Thanks, > > Greg > > -- > -------------------------------------------------------------------- > Gregory Yetman > Center for International Earth Science Information > Network (CIESIN) > Columbia University > URL: http://www.ciesin.columbia.edu/ > e-mail: gyetman (at) ciesin.columbia.edu > tel: (845) 365-8982 > -------------------------------------------------------------------- > > _______________________________________________ > Geowanking mailing list > [email protected] > http://lists.burri.to/mailman/listinfo/geowanking > _______________________________________________ Geowanking mailing list [email protected] http://lists.burri.to/mailman/listinfo/geowanking
