GRASS GIS: Vector network analysis significantly easier now

Also getting mad to connect your vector points to the graph? Stuff like “node is unreachable”? Same thing here, till last week. In GRASS 6.3 (still CVS), the tool was extended to easily connect nodes to a graph. Just specify the vector network map and the nodes map along with a distance threshold to only connect in a reasonable way.

Screenshot examples for GRASS vector networking can be seen here: travelling salesman analysis, Steiner Trees, and Iso-distances. Enjoy.

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About neteler

Markus Neteler , a founding-member of the (D-A-CH), (Italy), and the Open Source Geospatial Foundation (OSGeo), was head of the GIS and Remote Sensing Unit at the Research and Innovation Centre of the Fondazione Edmund Mach, Trento, Italy from 2008-2016. He then co-founded the mundialis company (Bonn, Germany), a startup specialized in open source development and massive data processing. He is author of several books and chapters on GRASS and various papers on GIS applications. Being passionate about Open Source GIS, he became a GRASS GIS user in 1993 and a developer in 1997, coordinating its development since then.