Changes between Version 19 and Version 20 of WKTRaster/SpecificationWorking02


Ignore:
Timestamp:
08/27/10 13:47:55 (14 years ago)
Author:
pracine
Comment:

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  • WKTRaster/SpecificationWorking02

    v19 v20  
    2525 The first series of variant return a raster having the same extent as the provided raster.
    2626
    27   Variant 1: ST_Intersection(geometry, val, raster, band) -> raster
     27  Variant 1: ST_Intersection(geometry, val, raster, band, pixeltype, nodatavalue) -> raster
    2828
    29   Variant 2: ST_Intersection(raster, band, geometry, val) -> raster
     29  Variant 2: ST_Intersection(raster, band, geometry, val, pixeltype, nodatavalue) -> raster
    3030
    31   Variant 3: ST_Intersection(geometry, val, raster) -> raster
     31  Variant 3: ST_Intersection(geometry, val, raster, pixeltype, nodatavalue) -> raster
    3232
    33   Variant 4: ST_Intersection(raster, geometry, val) -> raster
     33  Variant 4: ST_Intersection(raster, geometry, val, pixeltype, nodatavalue) -> raster
    3434
    3535 The second series of variant return a raster having the minimal extent.
    3636
    37   Variant 5: ST_Intersection(geometry, val, raster, band, 'TRIM') -> raster
     37  Variant 5: ST_Intersection(geometry, val, raster, band, pixeltype, nodatavalue, 'TRIM') -> raster
    3838
    39   Variant 6: ST_Intersection(raster, band, geometry, val, 'TRIM') -> raster
     39  Variant 6: ST_Intersection(raster, band, geometry, val, pixeltype, nodatavalue, 'TRIM') -> raster
    4040
    41   Variant 7: ST_Intersection(geometry, val, raster, 'TRIM') -> raster
     41  Variant 7: ST_Intersection(geometry, val, raster, pixeltype, nodatavalue, 'TRIM') -> raster
    4242
    43   Variant 8: ST_Intersection(raster, geometry, val, 'TRIM') -> raster
     43  Variant 8: ST_Intersection(raster, geometry, val, pixeltype, nodatavalue, 'TRIM') -> raster
    4444
    45  Return a two bands raster the first band containing only the pixels from the provided raster intersecting with the geometry and the second band containing the same area filled with the provided value. Non intersecting pixels are filled with nodata values. Variant 1 return a raster having the same extent as the provided raster. Variant 3, 4, 7 and 8 defaults the band number to 1. Variant 5 to 8 "trim" or "crop" the raster to the withvalue extent (removing extra nodata value pixels surrounding the extent of the resulting withvalue extent).
     45 Return a two bands raster the first band containing only the pixels from the provided raster intersecting with the geometry and the second band containing the same area filled with the provided value.
     46
     47 The second band gets its pixeltype and nodatavalue from the parameters.
     48
     49 Non intersecting pixels are filled with nodata values.
     50
     51 Variant 1 return a raster having the same extent as the provided raster.
     52
     53 Variant 3, 4, 7 and 8 defaults the band number to 1.
     54
     55 Variant 5 to 8 "trim" or "crop" the raster to the withvalue extent (removing extra nodata value pixels surrounding the extent of the resulting withvalue extent).
    4656
    4757