[postgis-devel] [PostGIS] #1245: [raster] ST_AddMultiBand that can add multiple bands to an existing raster
PostGIS
trac at osgeo.org
Mon Oct 17 08:57:53 PDT 2011
#1245: [raster] ST_AddMultiBand that can add multiple bands to an existing raster
----------------------------+-----------------------------------------------
Reporter: robe | Owner: pracine
Type: enhancement | Status: new
Priority: medium | Milestone: PostGIS Raster Future
Component: postgis raster | Version: trunk
Keywords: |
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Comment(by robe):
I was thinking along the lines of lets say I have a 2 band raster I
created with same dimensions, srid etc. of an existing and I want to add 3
more bands to this raster from an existing. ST_Band works great if I want
a subset of a raster but doesn't allow me to create a superset.
In current model, I'd have to do
ST_AddBand(ST_AddBand(newrast,ST_Band(oldrast,1)),ST_Band(oldrast,2))
etc.
Which seems silly considering we already have an ST_Band that can take an
array of band numbers and return me a multi band unless that is what this
is for:
raster ST_AddBand(raster torast, raster fromrast);
But come to think of it, not sure why that one is there if it just returns
band 1 of fromrast.
--
Ticket URL: <http://trac.osgeo.org/postgis/ticket/1245#comment:2>
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