[postgis-users] Basic postgis raster questions

[Bryce L Nordgren]

postgis-users-bounces at postgis.refractions.net wrote on 06/15/2011 07:02:46 
PM:

> > 4. ST_Clip(raster, geometry)

If ST_Intersection(raster, geometry) returns a raster having the original 
pixel values inside the geometry, and nodata outside the geometry, I'm not 
sure I see the need for a separate "clip" function. Semantically and 
mathematically, "clip" is "intersection": area common to both arguments.

Bryce
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