ordnance survey Prepping OS rasters for Geoserver Prepping Ordnance Survey's raster products for use within Geoserver takes a bit of manipulation to get the best performance and quality out of the image tiles. Combine this with some tweaks to Geoserver and you can get fast, slippy, good looking tiles in your favourite mapping software. I use GDAL
openlayers3 Combining pgRouting functions in OpenLayers3 In my previous post about getting the Turn Restricted Shortest Path (TRSP) function working in the Geoserver/OpenLayers3 web application I outlined the two functions used to calculate the shortest and quickest paths. In this post I will show the web parts that let me combine both functions to calculate
pgrouting pgRouting TRSP in OpenLayers3 I've managed, after some hacking, to write a wrapper to the pgr_trsp function in pgRouting that allows me to use the Turn Restricted Shortest Path to route between two points on the map. It is in the same structure as the Dijkstra Shortest Path wrapper with just a few
pgrouting pgRouting in OpenLayers3 with reverse costs The previous post looked at implementing the basic pgRouting workshop OpenLayers3 examples in EPSG:27700. This post adds reverse costs to the mix to take advantage of the road routing information (RRI) supplied with Ordnance Survey's ITN dataset. The changes to the two functions I created are minor - I
pgrouting pgRouting in OpenLayers3 This collection of notes covers my foray into using pgRouting in OpenLayers3 in EPSG:27700, or British National Grid, rather than the usual Google or Spherical Web Mercator projections. This part looks at simply tweaking the tutorial to work in EPSG:27700. The pgRouting workshop (http://workshop.pgrouting.org/) includes
