gis - Mixedbredie's Ghosts

Geeking out on a GIS

A couple of months ago Paul Wilson asked a question on KnowledgeHub about the best way to organise data in a GIS. Well, that got the GIS folk out of their data loading torpor and provided some interesting discussion. It highlighted the many different approaches but all seemed to agree

gis

QGIS 2.12 Lyon

QGIS 2.12 Lyon has just been released with a ton of new features. I particularly like the new rule based labeling options giving fine grained control. The change log has a very comprehensive list of all the other new features. Download the latest version for your Windows, Mac or

pgrouting

Using pgRouting with OS Meridian2

A quick guide to building a pgRouting network from Ordnance Survey's Meridian2 dataset. It assumes you have a working PostgreSQL/PostGIS database. The most current information will be on Github: https://github.com/mixedbredie/meridian2-for-pgrouting Get the data Download the Meridian2 shapefiles for the UK from https://www.ordnancesurvey.co.

pgrouting

Building ITN for pgRouting

This document and repository explains how to load Ordnance Survey ITN GML into a PostGIS database with Loader and then build a network suitable for use with pgRouting. The network will have one way streets, no entry and no turn restrictions, mandatory turns and grade separations for over- and underpasses.