Changes between Version 36 and Version 37 of PostGIS_Raster_SoC_Idea_2012/Distance_Analysis_Tools


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Timestamp:
06/18/12 21:35:51 (13 years ago)
Author:
qliu
Comment:

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  • PostGIS_Raster_SoC_Idea_2012/Distance_Analysis_Tools

    v36 v37  
    8585      The Euclidean Distance generates a raster layer that contains the measured distance from every cell to the nearest source.
    8686      [[Image(http://help.arcgis.com/en/arcgisdesktop/10.0/help/009z/GUID-7D94981B-1DBB-40F9-9F3F-B025C9F52BCD-web.png)]]
    87       (Illustration from ArcGIS Online Help)
     87      (Illustration from ArcGIS Online Help)[[BR]]
     88      * Function:[[BR]]
     89      EucDistance (in_source_data, {maximum_distance}, {cell_size}, {out_direction_raster})
     90        * in_source_data: Raster Layer / Feature Layer (vector)
     91          * Identifies the cells(raster) or locations(feature) to which the Euclidean distance for every output cell location is calculated.
     92          * If the source is a raster layer, it must contain only the values of the source cells, while other cells must be NoData.
     93          * If the source is a feature layer, it will internally be transformed into a raster. The resolution of the converted raster can be controlled with the output cell_size parameter.
    8894
    8995----