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Ellipsoid based proximity #30

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chrisnatali opened this issue Mar 24, 2015 · 0 comments
Open

Ellipsoid based proximity #30

chrisnatali opened this issue Mar 24, 2015 · 0 comments

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@chrisnatali
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If we really want be precise, when using a longlat based spatial reference system (e.g. "'+proj=longlat +datum=WGS84'"), proximity calculations should be done based on the ellipsoid (with radius at the equator > radius at the poles).

Currently, the R-Tree and KD-Tree are based on euclidean proximity.
@chrisnatali chrisnatali changed the title Ellipsoid based distances Ellipsoid based proximity May 5, 2015
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@chrisnatali