Network Topology
Toolkit to clean and build the topology of line networks (roads, rivers, pipelines, railways).
Adds a Processing provider with tools to clean and build the topology of a line
network — roads, rivers, pipelines, railways: (1) Topology split — node the layer at
every crossing (X) and endpoint-touch (T), extending dangles along their direction up
to a tolerance; (2) Resolve dangles — directionally extend undershoots and trim
overshoots; (3) Collapse pseudo-nodes — merge chains of lines through degree-2 nodes;
(4) Connected components — label independent sub-networks; (5) Cluster extents —
hull/bbox polygon per cluster; (6) Network nodes — points with degree and type.
Output is single-part, geometry and attributes preserved. Built for QGIS 4.0 (Qt6 / PyQt6).