Skip to content

Identify Network Nodes

Coverage Status Report an issue

Summary

Identify the nodes of a LineString network.

Tags:
hydrography, graph, stream order, network, identification

Usage

Identify the nodes of an input LineString network. Identified nodes

Parameters

Parameter Description Type
Input linestrings
INPUT 		Stream network, oriented from upstream to downstream.
MutliLineStrings are not supported.
 LineString(ZM)
Quantization Factor for Node Coordinates
QUANTIZATION 		Tolerance for node pairing (in number of decimal).
Nodes are considered identical if their coordinates are within this tolerance.
Default is 1e8.
Default value: 100000000.0 		Number
Lines With Identified Nodes
OUTPUT 		LineString with nodes identified.
with fields:
  • NODEA: unique identifier of the FROM node
  • NODEB: unique identifier of the TO node
 LineString(ZM)
Nodes
NODES 		Point features representing the nodes of the network.
with fields:
  • GID: node unique identifier
 Point(ZM)