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CLaRiNet 0.1 beta >> Raster analysis > GetFlowDirValue

GetFlowDirValue

Gets the values of a flow direction grid at specified locations (records).

Calling Sequence

VALUES = GetRasterValue ( handle_fdr , CELLS , DirCodes )

Arguments

handle_fdrras

integer: handle on the flow direction grid to be sampled

CELLS

Matrix containing the record numbers (absolute reference in the flow direction grid, as returned by XY2rec) to be read

DirCodes

3 x 3 matrix containing the codification of the 8 possible flow directions. ESRI convention is [ 32 , 64 , 128 ; 16 , -9999 , 1 ; 8 , 4 , 2 ]

VALUES

Output: matrix of size size(CELLS) containing the values of the flow direction grid at the requested locations

Description

Gets the values of a flow direction grid at specified locations (records).

Examples

See Also

Authors

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