Changes between Version 70 and Version 71 of WKTRaster/SpecificationWorking01


Ignore:
Timestamp:
12/16/09 13:50:40 (15 years ago)
Author:
pracine
Comment:

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  • WKTRaster/SpecificationWorking01

    v70 v71  
    229229 This polygon geometry might contain holes if some internal areas of the raster contain pixels with NODATA values. By opposition ST_ConvexHull(raster) never contains holes.
    230230
    231   '''Implementation details'''
     231 '''Implementation details'''
    232232
    233233 This function could be roughly implemented as a SQL or PL/pgSQL function looking like 'SELECT ST_Collect(ST_AsPolygon(raster))'. For sure a more specialised version could be faster than ST_AsPolygon.