Changes between Version 16 and Version 17 of WKTRaster/SpecificationWorking02


Ignore:
Timestamp:
08/27/10 13:19:48 (14 years ago)
Author:
pracine
Comment:

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  • WKTRaster/SpecificationWorking02

    v16 v17  
    2323'''ST_Intersection(geometry, raster, band) -> raster'''
    2424
     25 Variant 1: ST_Intersection(geometry, val, raster, band) -> raster with the same metadatada as the provided raster. Non intersecting pixels are filled with nodata values.
     26
     27 Variant 2: ST_Intersection(geometry, val, raster, band, 'TRIM') -> raster with the same metadatada as the provided raster but the extent is reduced to the geometry extent. Non intersecting pixels are filled with nodata values.
     28
    2529 Rasterize the geometry as a new raster (ST_AsRaster(geometry, pixeltype, val, nodataval, raster)) and then copy only pixels for which both raster bands have a value. Optionally trim the raster to withvalue extent.
    26 
    27  Variants
    28 
    29   ST_Intersection(geometry, val, raster, band) -> raster with the same metadatada as the provided raster. Non intersecting pixels are filled with nodata values.
    30 
    31   ST_Intersection(geometry, val, raster, band, “TRIM”) -> raster with the same metadatada as the provided raster but the extent is reduced to the geometry extent. Non intersecting pixels are filled with nodata values.
    3230
    3331----