[postgis-devel] [PostGIS] #1268: [raster] ST_MapAlgebraExpr for 2 rasters

[PostGIS]

#1268: [raster] ST_MapAlgebraExpr for 2 rasters
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 Reporter:  dustymugs       |       Owner:  dustymugs    
     Type:  task            |      Status:  assigned     
 Priority:  medium          |   Milestone:  PostGIS 2.0.0
Component:  postgis raster  |     Version:  trunk        
 Keywords:                  |  
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Comment(by bnordgren):

 I notice that the expression defaults to null. What does that mean?
 "rast1+rast2"? I think it may make more sense to say "expression text NOT
 NULL".

 PS: What time I spent on PostGIS this past month was spent writing unit
 tests for the raster iterator/spatial collection framework. If you'd like
 to kick the tires, it's the "ri-gen2-svn" branch of my postgis repo on
 github. If the code you mention above is C it should be a relatively
 simple task to recast it in terms of an Evaluator.

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Ticket URL: <http://trac.osgeo.org/postgis/ticket/1268#comment:2>
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