Changes between Version 14 and Version 15 of WKTRaster/FAQ


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Timestamp:
Mar 22, 2010, 11:30:15 AM (14 years ago)
Author:
pracine
Comment:

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  • WKTRaster/FAQ

    v14 v15  
    1111The major advantage of one-georeference-by-raster over one-georeference-by-layer is to allow:
    1212
    13  * coverages to be not necessarily rectangular (which is often the case of raster coverage covering large extents. See the possible raster arrangments in the documentation)
     13 * coverages to be not necessarily rectangular (which is often the case of raster coverage covering large extents. See the possible raster arrangements in the documentation)
    1414 * rasters to overlaps (which is necessary to implement lossless vector to raster conversion)
     15
     16These arrangement are possible in Oracle as well, but they implies the storage of multiple SDO_GEORASTER objects linked to as many SDO_RASTER table. A complex coverage can lead to hundreds of table in the database. With WKT Raster you can store a similar raster arrangement into a unique table.
    1517
    1618'''3 - Why do you say "WKT Raster goal is to implement the RASTER type as much as possible like the GEOMETRY type is implemented in PostGIS"? Vector and raster are very different and have always been threated differently in GIS packages.'''