[postgis-tickets] [PostGIS] #2211: [raster]: need more pictures and possibly also PL/Javascript

PostGIS trac at osgeo.org
Fri Feb 22 18:22:51 PST 2013


#2211: [raster]: need more pictures and possibly also PL/Javascript
---------------------------+------------------------------------------------
 Reporter:  robe           |       Owner:  robe         
     Type:  enhancement    |      Status:  new          
 Priority:  medium         |   Milestone:  PostGIS 2.1.0
Component:  documentation  |     Version:  trunk        
 Keywords:                 |  
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 I'll try to find some to demonstrate particularly with the ST_MapAlgebra
 and ST_Reclass which I seem to use a lot of.  It just irritates me a bit
 that we have all this great functionality and not flaunting it in a more
 dramatic way.

 I'd also like to experiment with using plv8 for writing Map Algebra arg
 reference functions.

 http://www.postgresonline.com/journal/archives/280-PLV8-1.3-windows-
 binaries-for-PostgreSQL-9.2.html

 I suspect it will be faster than plpgsql in many cases. My sample tests
 seem to suggest for numeric processing it can be orders of magnitude
 faster than plpgsql and will be more appealing to your standard programmer
 crowd than plpgsql.  I just haven't grokked how to handle arrays in it
 yet.  Or if it is doable with 1.3.

 Bborie and Pierre -- would you mind me throwing some PL/Javascript
 function examples in the docs.  Thinking of putting it in:

 http://postgis.net/docs/manual-dev/using_raster_dataman.html

 With link to it from ST_MapAlgebra.

-- 
Ticket URL: <http://trac.osgeo.org/postgis/ticket/2211>
PostGIS <http://trac.osgeo.org/postgis/>
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