[postgis-tickets] [PostGIS] #3044: [raster] raster2pgsql should have an option to align tiles

[PostGIS]

#3044: [raster] raster2pgsql should have an option to align tiles
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 Reporter:  pracine      |       Owner:  dustymugs
     Type:  enhancement  |      Status:  new      
 Priority:  medium       |   Milestone:           
Component:  raster       |     Version:  trunk    
 Keywords:               |  
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Description changed by pracine:

Old description:

> We should have the possibility to provide gridx and gridy coordinates of
> an arbitrary grid corner to tell the loader on which grid to align the
> tiles produced when using the -t option. This would allow rasters having
> different upperleft corner alignment to be tiled on the same grid in the
> same table.
>
> Some tiles would have to be padded not only on the right and lower sides
> but also on the left and upper sides.
>
> Could be -A 0.0x0.0

New description:

 We should have the possibility to provide gridx and gridy coordinates of
 an arbitrary grid corner to tell the loader on which grid to align the
 tiles produced when using the -t option. This would allow rasters having
 different upperleft corner alignment to be tiled on the same grid in the
 same table.

 Some tiles would have to be padded not only on the right and lower sides
 but also on the left and upper sides.

 The gridx and gridy must be aligned with the pixel grid. Otherwise we
 would have to resample the raster before tiling which is time consuming.
 Pixel alignment is normally done with gdalwarp or gdal_translate as a
 preloading process.

 ST_Tile() should also get those two extra gridx and gridy parameters.

 Could be -A 0.0x0.0

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Ticket URL: <http://trac.osgeo.org/postgis/ticket/3044#comment:1>
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