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 Markus

Markus Neteler , a founding member of (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 to 2016. In 2015 he co-founded the company mundialis (Bonn, Germany), a start-up specialised in open source development and massive data processing. He is the author of several books and chapters on GRASS and various papers on GIS applications. Passionate about open source GIS, he became a GRASS GIS user in 1993 and a developer in 1997, and has been coordinating its development ever since.