[postgis-devel] [WKT Raster] Regular blocking in gdal2wktraster.py

[Frank Warmerdam]

2009/3/20 Pierre Racine <Pierre.Racine at sbf.ulaval.ca>:
> Mateusz,
>
> As an image is worth a thousand word, I updated the PowerPoint to better express the different raster datasets possibilities. Instead of the three categories ("continuous tiled coverage",
> "vector-like discrete coverage" and "image warehouse") I created five:
>
> 1 - As an incomplete non-overlapping tiled coverage
> 2 - As a complete tiled non-overlapping tiled coverage
> 3 - As a layer of vector like discrete raster objects
> 4 - As a “big raster” (or a series of)
> 5 - As an image warehouse

Pierre,

I would like to encourage treating cases 1 and 2 as the same thing.
It was never my intention that the regular blocking would require a
complete set of tiles.   Missing tiles would just be treated as the
nodata value, or zero if there is no nodata value.

I will attempt to update the RASTER_COLUMNS document to reflect
this.

I'm also still failing to grasp how 4 (big raster) is distinct from
the 1/2 case.

Best regards,
-- 
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