[postgis-tickets] [PostGIS] #2312: [raster] st_circle

[PostGIS]

#2312: [raster] st_circle
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 Reporter:  nclay        |       Owner:  dustymugs     
     Type:  enhancement  |      Status:  new           
 Priority:  medium       |   Milestone:  PostGIS Future
Component:  raster       |     Version:  trunk         
 Keywords:               |  
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Comment(by nclay):

 So, we will need a function that returns a Mask of appropriate resolution
 for use in _st_focal to create convenience functions such as st_circle or
 st_annulus. Something like:
 {{{
 double precision [][][] ST_Mask(ST_CLIP(RASTER,GEOMETRY,BITMAP or WEIGHT))
 }}}

 That way we could also implement weighted masks, along with bit map masks.


 Thanks,

 Nathan

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Ticket URL: <http://trac.osgeo.org/postgis/ticket/2312#comment:6>
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