[postgis-devel] [PostGIS] #595: [raster] Add a series of ST_SetValues functions

[PostGIS]

#595: [raster] Add a series of ST_SetValues functions
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 Reporter:  pracine  |       Owner:  pracine      
     Type:  task     |      Status:  new          
 Priority:  medium   |   Milestone:  PostGIS 2.1.0
Component:  raster   |     Version:  trunk        
 Keywords:  history  |  
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Comment(by pracine):

 Replying to [comment:15 dustymugs]:
 > If the rasters aren't aligned, there isn't much that can be done.

 Why? Just convert the first raster pixel x and y into world coordinates
 (the centroid acutally) and then those world coordinates into the second
 raster x and y coordinates to look for a value. If the world coordinates
 fall outside the second raster extent and keepsourcetnodata is false, just
 leave the destination value unchanged. If keepsourcetnodata  is true, the
 destination becomes nodata. In other word, threat any out of bound
 coordinate as nodata. That's what we should always do.

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Ticket URL: <http://trac.osgeo.org/postgis/ticket/595#comment:16>
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