[postgis-devel] [PostGIS] #502: [raster] Optimize ST_Intersection to return ST_Value when intersecting with points

PostGIS trac at osgeo.org
Thu Jan 13 13:26:44 PST 2011


#502: [raster] Optimize ST_Intersection to return ST_Value when intersecting with
points
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  Reporter:  pracine         |       Owner:  pracine      
      Type:  enhancement     |      Status:  assigned     
  Priority:  low             |   Milestone:  PostGIS 2.0.0
 Component:  postgis raster  |     Version:  trunk        
Resolution:                  |    Keywords:               
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Comment(by robe):

 Pierre,

 Actually I rather liked the way ST_Value worked returning only one value.
 Its convenient in many cases.  If you are going to have it return multiple
 -- then call it ST_values and please leave ST_Value alone.  Like for
 example when I'm grabbing an elevation as a rule of thumb -- I really only
 want one value.  If you must consider all pixels then average them.

-- 
Ticket URL: <http://trac.osgeo.org/postgis/ticket/502#comment:9>
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