Changes between Version 49 and Version 50 of WKTRaster/Documentation01


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Timestamp:
Dec 10, 2009, 10:56:45 AM (14 years ago)
Author:
pracine
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  • WKTRaster/Documentation01

    v49 v50  
    291291You can inform PostGIS that the raster layer you are loading meets certain useful criteria by adding the –k option to the gdal2wktraster.py Python loader. This will set the "regular_blocking" attribute of the raster_columns table to ''true''. It implies that:
    292292
    293 1. All loaded tiles have the same width and height,[[BR]]
    294 2. All tiles do not overlap and their upper left corners follow a regular block grid,[[BR]]
    295 3. The global extent of the layer is rectangular and not rotated.
     293 * All loaded tiles have the same width and height,[[BR]]
     294 * All tiles do not overlap and their upper left corners follow a regular block grid,[[BR]]
     295 * The global extent of the layer is rectangular and not rotated.
    296296
    297297Some blocks (or tiles) can be missing in a regularly blocked table. Missing tiles are assumed to be filled with the proper nodata value for each band as determined in the raster_columns table.