[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
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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>
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