[postgis-devel] [PostGIS] #497: [wktraster] Start testing displaying PostGIS raster with Mapserver

[PostGIS]

#497: [wktraster] Start testing displaying PostGIS raster with Mapserver
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 Reporter:  robe       |       Owner:  pracine        
     Type:  task       |      Status:  new            
 Priority:  medium     |   Milestone:  WKTRaster 0.1.6
Component:  wktraster  |     Version:  trunk          
 Keywords:             |  
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 The good news is that I started to test wktraster in Mapserver and got
 something to show up and was in the right spot and about the right size.
 The bad news is I just got a black box where my raster should have been.

 I suspect this is just user error on my part since I haven't tried
 displaying rasters in mapserver in a really long time.

 Couple of questions -- should the standard pixel syntax supposed to work.
 Was going to try that next.  Also not sure how to create overlays -- I
 tried with my particular example and got some gdal2wktraster errors in
 line such and such.  I presume will need this to improve speed.

 I'm going to try next with a simpler image since the one I was using I got
 a black box too when using gdal_translate to export it out to jpeg.

 Anyrate this is the connection string construct I used in case anyone is
 interested in  trying.  I presume that part is okay.  The other stuff
 below I actually haven't tried yet, but copied from one of Frank W's
 examples.  Should that syntax work okay or you don't know.


 {{{
 LAYER
         NAME maraster
         TYPE raster
         STATUS ON
         DATA "PG:host=localhost port=5432 dbname='postgis_in_action'
 user='postgres' password='whatever' schema='ch13' table='maraster'"
         PROCESSING "NODATA=500"
         PROCESSING "SCALE=-100.5,100.5"
         PROCESSING "SCALE_BUCKETS=201"
         CLASS
                 NAME "red"
                 EXPRESSION ([pixel] < 20)
                 COLOR 255 0 0
         END
         CLASS
                 NAME "green"
                 EXPRESSION ([pixel] >= 1000 and [pixel] < 2000)
                 COLOR 0 255 0
         END
 END

 }}}

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Ticket URL: <http://trac.osgeo.org/postgis/ticket/497>
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