Changes between Version 27 and Version 28 of WKTRasterDriver


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Timestamp:
Jul 8, 2009, 10:54:48 AM (15 years ago)
Author:
jorgearevalo
Comment:

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  • WKTRasterDriver

    v27 v28  
    4646== Implementing the Dataset ==
    4747
     48UPDATE: We'll focus in the WKT Raster objects with only one table per coverage. Then, one GDAL Dataset will be created based on a set of tiles reading from one (and only one) table with a WKT Raster column. So, concept explained in the next paragraph is frozen, at least just now...
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    4851One GDAL Dataset will be created based on a set of tiles reading from one or more tables with a WKT Raster column. Yes, we may need to read from more than one table: in the case of tiled images. In this type of images, a single table ''does not represent a complete coverage; other images forming the rest of the coverage are stored as other tables of tiled images. This structure is not very practical from a GIS analytical point of view since any operations applied to the coverage must also be applied to every table.''
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    4954
    5055There are three important methods that must be implemented in the Dataset class: