[postgis-tickets] [PostGIS] #2341: [raster] ST_MapAlgebra mask parameter

[PostGIS]

#2341: [raster] ST_MapAlgebra  mask parameter
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 Reporter:  nclay        |       Owner:  dustymugs    
     Type:  enhancement  |      Status:  assigned     
 Priority:  medium       |   Milestone:  PostGIS 2.2.0
Component:  raster       |     Version:  trunk        
 Keywords:               |  
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Comment(by dustymugs):

 Replying to [comment:5 pracine]:
 > Why you don't just pass the mask as a userargs argument?

 Actually, I already do this for my code. The problem is that the
 conversion from text to whatever datatype is a performance hit.  For
 something as generic as a mask (distancex and distancey basically creates
 a mask), might as well have it in C.

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Ticket URL: <http://trac.osgeo.org/postgis/ticket/2341#comment:7>
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