[postgis-devel] How are these concepts managed in PostGIS?

Jorge Arévalo jorge.arevalo at deimos-space.com
Thu Aug 26 03:52:48 PDT 2010


Hi,

I'd like to know if these two concepts are taken into account in
PostGIS, and where to find information on how are they managed. They
are concepts used in Oracle Spatial:

- Tolerance (distance that two points can be apart and still be
considered the same):
http://download.oracle.com/docs/cd/B28359_01/appdev.111/b28400/sdo_intro.htm#i884589

- Unit of measurement support (particularly, creating an user-defined
unit of measurement):
http://download.oracle.com/docs/cd/B28359_01/appdev.111/b28400/sdo_objrelschema.htm#i1010145

I'm not finding this information in PostGIS manual
(http://postgis.refractions.net/documentation/manual-svn/).

Many thanks in advance, and best regards,

--
Jorge Arévalo
Internet & Mobilty Division, DEIMOS
jorge.arevalo at deimos-space.com
http://mobility.grupodeimos.com/
http://gis4free.wordpress.com



More information about the postgis-devel mailing list