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Update Axis Length and Measure

Summary

Compute a new measure attribute as the distance of each link to the network outlet.

This algorithm also sets the M coordinate of input geometries. When there are anabranches or parallel branches, diffluence nodes are attributed the maximum distance to outlet, so as to minimize overlap in M coordinate.

Input must be a preprocessed, downslope directed stream network, with single part geometries.

Tags:
hydrography, graph, linear referencing

Usage

No Description Yet.

Parameters

Parameter Description Type
Stream Network
INPUT
QgsProcessingParameterFeatureSource
From Node Field
FROM_NODE_FIELD
Default value: NODEA QgsProcessingParameterField
To Node Field
TO_NODE_FIELD
Default value: NODEB QgsProcessingParameterField
Hack Order Field
HACK_FIELD
Default value: HACK QgsProcessingParameterField
Measure Field
MEASURE_FIELD
Default value: MEASURE QgsProcessingParameterField
Updated
OUTPUT
QgsProcessingParameterFeatureSink