[postgis-tickets] [PostGIS] #2281: multiband raster burning (braindump)

[PostGIS]

#2281: multiband raster burning (braindump)
-------------------------+--------------------------------------------------
 Reporter:  strk         |       Owner:  dustymugs     
     Type:  enhancement  |      Status:  new           
 Priority:  medium       |   Milestone:  PostGIS Future
Component:  raster       |     Version:  trunk         
 Keywords:               |  
-------------------------+--------------------------------------------------

Comment(by robe):

 From what strk was saying I thought he was looking for an

 ST_Union (that for each band could take a different function MEAN, COUNT
 etc because he wants one band to be MEAN, one to be COUNT, and one to be
 LAST for example and untop of that could take user defined behavior like
 ST_MapAlgebra (essentially an aggregrate form of ST_MapAlgebra).

 As I recall right now though 2.1 ST_Union is multi-band it only takes one
 operation
 and in fact only if you choose LAST is it really multiband.

 and on top of that he could apply directly to geometries.
 So ya the ST_AsRaster wrapper is one part of that to convert his geomval[]
 fantasy into a raster.

-- 
Ticket URL: <http://trac.osgeo.org/postgis/ticket/2281#comment:3>
PostGIS <http://trac.osgeo.org/postgis/>
The PostGIS Trac is used for bug, enhancement & task tracking, a user and developer wiki, and a view into the subversion code repository of PostGIS project.