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Calculate Length Downstream for Lines

Description

Populate LengthDown field in DrainageLine features with the sum of length of downstream lines, including the length of the original line. The connectivity is read from the field HydroID/NextDownID.

Usage

Parameters

Parameter NameTypeDirectionData TypeDialog Reference
Input Line Feature ClassRequiredInputFeature LayerInput lines features for which the field LenghtDown will be populated. Must contain the fields HydroID and NextDownID which are used to identify the main downstream paths. LengthDown is calculated by adding up the shape length of the original feature with the total length of all downstream features.