[postgis-devel] [PostGIS] #1267: [raster] Add manual height/weight support to ST_Resample

[PostGIS]

#1267: [raster] Add manual height/weight support to ST_Resample
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 Reporter:  serveralex      |       Owner:  pracine              
     Type:  enhancement     |      Status:  new                  
 Priority:  medium          |   Milestone:  PostGIS Raster Future
Component:  postgis raster  |     Version:  trunk                
 Keywords:                  |  
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Comment(by pracine):

 Resampling a raster to the dimensions of another raster does not make much
 sense to me.

 You might want to align a raster to another one in which case you need to
 borrow its scales, its skew and its upperleft corner to determine the new
 grid on which to align the new resampled raster. We offer the possibility
 to borrow them from another raster because they are generally cumbersome
 to write by hand. You may also want to explicitly pass those parameters.

 You may want to explicitly pass a new width and a new height for the
 resampled raster but since a height and a width are generally easy to
 write (being integers) it seems useless to have the possibility to get
 them from another raster. This is also a dangerous operation to do on the
 many rasters of a single table as you might end with rasters having
 different pixel size. Always better to specify pixel size.

 I would prefer the addition of a new signature accepting width and height
 than having one borrowing of dimensions from another raster.

-- 
Ticket URL: <http://trac.osgeo.org/postgis/ticket/1267#comment:2>
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