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visits member for 2 years, 4 months
seen Nov 15 at 22:50

Aug
11
comment QGIS Contour plugin: Creating complex isolines leads to isolated areas
I have read up on pgrouting's alphashapes. Seems like your team does no interplolation and alphashape returns only the amount of nodes within distance? Interpolation would also interpolate the driving distance on the edge to the queried value.
Aug
11
comment QGIS Contour plugin: Creating complex isolines leads to isolated areas
Thank you. I checked each node and the drive times obtained from pgrouting (Dijkstra) match the expected result sketched in green. Therefore the reason must lie in the Contour mapping. Would you recommend to use GDAL TINs?
Aug
11
asked QGIS Contour plugin: Creating complex isolines leads to isolated areas
May
17
awarded  Commentator
May
17
comment How to implement stopovers in pgrouting?
Ok, I made a simple manual select ... where gid in (x,y) inside the routing statement.
May
17
comment How to implement stopovers in pgrouting?
Ok, it is forbidden for the standard route. Nevertheless, it should still be accessible. If I had increased the costs of the edge, I would change the original data and risk increased traveling times in this area. It is possible, but there must be a nicer way keeping the original network untouched...?
May
17
asked How to implement stopovers in pgrouting?
Jun
2
answered unable to install qgis 1.9 on Lubuntu 13.04
May
18
answered Emergency Services: How to optimize routing by measured travel time?
May
6
comment Emergency Services: How to optimize routing by measured travel time?
@Uffe Kousgaard: yes, you understood my problem. I am on the way to Mathematica.
May
6
revised Emergency Services: How to optimize routing by measured travel time?
Added emergency service as Headline to track more rel. visitors
May
5
revised Improve performances on distance coverage routing - PostgreSQL
added tag emergency services
May
5
revised Performing Network Analysis for Emergency Response using ArcGIS Desktop?
added tag emergency services
May
5
revised GIS for Local Police Department
added tag emergency services
May
5
awarded  Organizer
May
5
revised How to calculate Network Service Areas in QGIS?
added tag emergency services
May
5
suggested approved edit on GIS for Local Police Department
May
5
suggested approved edit on Improve performances on distance coverage routing - PostgreSQL
May
5
suggested approved edit on How to calculate Network Service Areas in QGIS?
May
5
suggested approved edit on Performing Network Analysis for Emergency Response using ArcGIS Desktop?