Changes between Version 40 and Version 41 of WKTRaster/SpecificationWorking02


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Timestamp:
Sep 21, 2010, 8:35:35 AM (14 years ago)
Author:
pracine
Comment:

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  • WKTRaster/SpecificationWorking02

    v40 v41  
    8383
    8484----
     85== '''Objective 2.0.03 - Being able to create a raster as the expression of two rasters''' ==
     86
     87'''ST_MapAlgebra'''
     88
     89----
    8590== '''Objective 2.0.04 - Implement better support for NULL, Empty, !HasNoBand(rast), !HasNoBand(rast, band) and !BandIsNoData rasters in all functions.''' ==
    8691
    … …  
    134139== '''Objective 2.0.05 - Being able to set and get values for part of a raster.''' ==
    135140
     141'''ST_SetValues'''
     142
     143 TBD
     144
    136145'''ST_Clip'''
    137146
    … …  
    165174 This function is necessary to optimize ST_Intersection. The raster to be polygonised before proceeding to a vector intersection should first be clipped to the minimal intersecting area using ST_Clip().
    166175
     176----
     177== '''Objective 2.0.06 - Being able to add a band to a raster as a copy of the band of another raster.''' ==
     178
     179'''ST_AddBand(rast1 raster, rast2 raster, band int, index int)'''
     180
     181 Copy band of rast2 into rast1 at the specified index.
     182
     183 This function is useful in a number of plpgsql functions and to optimize ST_MapAlgebra.
     184
     185