ordnance survey - Mixedbredie's Ghosts

Blender Landscapes: Skye

Another attempt at Blender landscapes using the Ordnance Survey Terrain50 DTM and Meridian2 datasets. The Meridian2 features are draped over the DTM which is vertically exaggerated by 150%. Water features and a sea layer are used to create an image texture. This is used in a UVmap to create the

pgrouting

Building Highways for pgRouting

A copy-and-paste post to help you build the new OS Highways for pgRouting. It is still a work in progress so things may change and break. Requires PostgreSQL with PostGIS and pgRouting and a licensed copy of Safe Software's FME Desktop. 1. Load the data If you have Safe Software’

pgrouting

pgRouting webinar with OS

I recorded a webinar with the Ordnance Survey about the different ways we've been using pgRouting with OS datasets. If you've got 30 minutes spare you can watch it or just read my other blog posts about pgRouting.

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

pgrouting

The QGIS Road Graph plugin

QGIS offers a plugin that will solve a shortest path problem across any vector polyline layer in any format - the Road Graph plugin. The advantage of using this plugin over pgRouting is that you don't need to do anything special to your polyline layer to route across it. As

pgrouting

Improving pgRouting Performance

The Network I've loaded up the new Open Roads network dataset from Ordnance Survey into PostGIS and got it working with pgRouting. I can route successfully from A to B across the network. The problem is that it is so slow. There are 3.18 million road links and 2.

ordnance survey

pgRouting and OS Open Roads

Get the data you need from OS: http://www.ordnancesurvey.co.uk/business-and-government/products/os-open-roads.html Load the data into PostGIS using QGIS or pgAdmin or ogr2ogr - your choice. This takes some time to process as there are a large number links making up the network: 3.6 million

ordnance survey

OS Open Map Brinjal style

It's dark. It's brooding. Is it bruised? No, it's a simple dark rendering of the Ordnance Survey's Open Map Local product. The style sheets were created in QGIS and are available from Github. I only used the roads, buildings, surface and tidal water layers, and a very muted styling of

ordnance survey

OS Open Map Camper style

Here's another set of QML files for QGIS for styling up the new open data Open Map Local from Ordnance Survey. It's a little bit retro and uses nice clean colours and some different fonts. It doesn't use all the layers from Open Map (that's the beauty of working with

ordnance survey

QGIS styles for OS Open Map

Ordnance Survey recently released beta versions of new open datasets - Open Map, Open Roads, Open Rivers and Open Names. Along with the data there are some associated stylesheets to let you recreate to classy OS styles in your favourite desktop GIS. Using the OS stylesheets as a starting point

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.