My articles

Catchment Area Calculation with pgRouting
April 21, 2017

This post is written as response to Michal Zimmermann’s article “Routing with pgRouting: Catchment Area Calculation ”. Michal’s article was interesting to read, and it definitely contains some valid points of criticism.

pgRouting preview: the new VRP solver
December 5, 2013

This is a guest post of “St. Nikolaus”. It is written for the Japanese FOSS4G Advent Calendar 2013 and it’s probably again the only one in English as in 2012 .

FOSS4G Presentation about pgRouting
November 15, 2013

In 2013 pgRouting was presentated at three FOSS4G events, in Nottingham , Tokyo and Osaka . In case you have missed them all, take a look at the presentation slides:

pgRouting announces pgRouting 2.0.0 release
September 27, 2013

This 2.0 release brings a number of major new features: All Pairs Shortest Path, Johnson’s Algorithm NEW All Pairs Shortest Path, Floyd-Warshall Algorithm NEW Shortest Path A* Bi-directional Dijkstra Shortest Path NEW Bi-directional A* Shortest Path NEW Shortest Path Dijkstra Driving Distance K-Shortest Path, Multiple Alternative Paths NEW K-Dijkstra, One to Many Shortest Path NEW Traveling Sales Person NEW Implementation Turn Restriction Shortest Path (TRSP) NEW New functions for creating routing topology New functions for analyzing a graph for problems pgRouting 2.

pgRouting 2.0 is coming soon
August 5, 2013

With the (inofficial) alpha, beta and rc1 release of the new pgRouting 2.0.0 lots of smaller and bigger issues have been fixed: for example TSP now accepts a start and also an end point, the “develop” branch is checked on Travis CI with every commit and tested with different versions of PostgreSQL/PostGIS, the documentation can be translated with Transifex , etc.

Georepublic at FOSS4G in Notthingham
August 4, 2013

In September the annual FOSS4G will take place in Nottingham, and beside being a sponsor Georepublic will attend the event with three of us travelling from Tokyo and Osaka. We are also planning to attend State of the Map in Birmingham, UK and the Quantum GIS Developer Meeting in Brighton before heading to FOSS4G.