The governmental national mapping agency of the UK.

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1
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2answers
117 views

How can I find an OSGB six-digit code's bounding box?

How can I convert Ordnance Survey six-digit codes to the latlng bounding box of the related 1km grid square? For example, NH0325: according to Wikipedia this means a 1km square whose south-west ...
2
votes
1answer
122 views

Why might Ordnance Survey codes all be out by 500m?

I've been given a set of UK Ordnance Survey geocodes, but I think they're all off by about 500 metres. Here is an example - please could someone confirm to me that the codes are wrong, not my ...
5
votes
3answers
790 views

Convert Ordnance Survey NTF data to QGIS compatible format

Is there a way of converting Ordnance Survey NTF data to QGIS that will correctly import the data and build polygons? QGIS will read the data as is, but it imports the polygons only as ...
2
votes
1answer
2k views

Convert X Y Pixels to Easting Northing

Hopefully someone can help. I'm trying to find out what the formula would be to convert the X, Y of an image to the Easting and Northing coordinates. I've downloaded some of the raster maps from OS ...
2
votes
0answers
445 views

Is it acceptable to store OSGB36 data as geometry in SQL Server?

I've set myself a project of getting some geo data into SQL Server but before I get started doing any of the big jobs I wanted to see if I was on the right track. All of my data is for the UK and is ...
4
votes
2answers
399 views

Spatial Indexes on OS MasterMap Data

What are the optimal settings for setting up a SQL Server 2008 Spatial database with full UK OS MasterMap data in? Seperate tables for the different feature types, or a single table with everything ...
7
votes
2answers
2k views

QGIS and Raster Mapping in 'Seamless' layer

I would like to use Ordnance Survey base mapping in QGIS. I would like to set up something like a seamless table in MapInfo. I think that the equivalent in QGIS is a Virtual Raster Table. The files ...
1
vote
1answer
210 views

Open Source Challenge: Automated Mastermap update in Oracle Spatial

I've been set a challenge which is a bit out of my comfort zone. I'm an esri developer trying to break into the open source world. I've been asked to automate the update of some oracle SDO datasets. ...
2
votes
2answers
2k views

Converting ASCII grid/NTF to SRTM/DEM

I want to use the Ordnance Survey Land-Form Panorama product in some software called Maperitive, which can read custom SRTM DEM files. The data is provided in the following formats: DXF [Contours] ...
5
votes
2answers
1k views

Converting Ordnance Survey raster maps to WGS84 webmap tiles

I would like to generate Google/Bing-like map tiles from Ordnance Survey's 1:25000 and 1:50000 raster maps, which are provided as 4000x4000 UK national grid tiles (GeoTIFF). A sample tile can be ...
2
votes
0answers
191 views

SharpMap UK OS data

I've downloaded the UK raster and the corresponding tab file from the ordnance survey website and have displayed the image using the GDARaster class. however I am now stuck as I have no idea how to ...
4
votes
2answers
846 views

Looking for a Provider of UK boundary data

I'm working on a web project centered around the input and mapping of GIS data. We have a need to display polygons of town boundaries. The RightMove.co.uk website has and uses this data: ...
3
votes
2answers
114 views

Obtaining OS MasterMap time series data

I am trying to do a research project on changes in Land Cover in a London borough over time. I have access to OS MasterMap data through Digimap (the service that provides this data to universities in ...
2
votes
2answers
273 views

Ordnance Survey No Turn

I have a project that involves porting a lot of information from ordnance survey to a spatial database. From that database I'm going to extract the information I need for a routing application. ...
4
votes
1answer
725 views

UK cities boundries in Ordnance survey

Are there any city boundaries of UK cities in the Ordnance Survey?
4
votes
2answers
596 views

Ordnance Survey data on GeoServer 2.x

Has anyone had any success deploying the Ordnance Survey's free datasets on its open sourced OSGBWebMapTools framework using GeoServer 2.0.2? I've been able to set up the datasets on GeoServer 1.7.6 ...
3
votes
0answers
184 views

Ordnance Survey Grids [duplicate]

Possible Duplicate: Ordnance Survey grids - download or generate? Does anyone know if I can download a grid of the tile locations for the 1:10k, 1:25k and 1:50k Ordnance Survey tile ...
3
votes
2answers
975 views

Using openlayers to render UK National Grid maps

Is there a way I can use Openlayers with a 1 pixel = 1m/2m/4m OS Grid map at high resolutions (i.e. OS Street View), but switching to a Mercator projection when you zoom out (i.e. for Google Maps or ...
3
votes
5answers
2k views

Ways to load OS VectorMap data

Us lucky fellows in the UK have been able to access public geodata from Ordance Survey under an open licence since April this year. Some of the datasets, including VectorMap, are broken into 100 ...
3
votes
4answers
251 views