Hi All,
I'm a newbie on PostGIS and GIS in general.
Reading section "Taking Advantages of Indexes" at
http://postgis.refractions.net/docs/ch04.html#id2638955
... I became confused regarding how I could retrieve points which are
distant up to 500 meters from a given point.
The question is actually how I can transform 500 meters onto some some
other figure on a unit I don't understand very well what it is about. I
need this calculation in order to determine a Box3d like the article
suggests.
Thanks a lot and regards,
--
Richard Gomes
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