[postgis-devel] [PostGIS] #514: [wktraster] Some functions are missing in the XML reference

[PostGIS]

#514: [wktraster] Some functions are missing in the XML reference
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  Reporter:  pracine    |       Owner:  robe           
      Type:  defect     |      Status:  new            
  Priority:  medium     |   Milestone:  WKTRaster 0.1.6
 Component:  wktraster  |     Version:  trunk          
Resolution:             |    Keywords:                 
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Comment (by pracine):

 For me there should be two changes:

 -ST_Value should go in a new "Raster Pixel Accessor" section to
 distinguish the function accessing the global raster, the functions
 accessing the band and the ones accessing the pixels. I understand that
 for now there is only one Pixel Accessor and I still have problem
 imagining any other, but that make more sence to me. At last it should go
 with the "Band Accessor" ones but certainly not with the "Raster Accessor"
 ones like it is now.

 The second one, I'm not sure:

 -It seems to me that ST_Envelope and ST_Box2D should go in the "Raster
 Processing Functions" like ST_ConvexHull. I understand that in a geometry
 you really only "access" the value stored in the geometry, but for a
 raster we have to compute it from the georeference like we compute the
 convex hull. There is no Box2D, envelope or convex hull already stored
 that you can access. It is derived information. That's my understanding of
 the "Accessors".

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Ticket URL: <http://trac.osgeo.org/postgis/ticket/514#comment:4>
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