[postgis-devel] [PostGIS] #903: [raster] ST_Reclass

PostGIS trac at osgeo.org
Tue Apr 19 08:19:34 PDT 2011


#903: [raster] ST_Reclass
----------------------------+-----------------------------------------------
 Reporter:  dustymugs       |       Owner:  dustymugs            
     Type:  task            |      Status:  assigned             
 Priority:  medium          |   Milestone:  PostGIS Raster Future
Component:  postgis raster  |     Version:  trunk                
 Keywords:                  |  
----------------------------+-----------------------------------------------

Comment(by pracine):

 I don't understand what is the advantage of having an extra argument for
 nodata value over supporting "NULL" in reclassexpr. e.g.

 ST_Reclass(rast, 1, '0-100:1-10, 101-500:11-150,501 - 10000: 151-254, 255:
 NULL', '8BUI')

 instead of:

 ST_Reclass(rast, 1, '0-100:1-10, 101-500:11-150,501 - 10000: 151-254',
 '8BUI', 255)

-- 
Ticket URL: <http://trac.osgeo.org/postgis/ticket/903#comment:11>
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