The opendata tag has no wiki summary.
11
votes
3answers
2k views
Where to download free elevation data for Europe?
Where can I find free elevation data for Europe? Please mention the available resolutions and terms of use when posting a source.
7
votes
2answers
479 views
Can ArcMap 9.3 process sqlite files?
I'm using qgis and grass for my work. I've produced a shapefile which is over 100mbs (s a result of some statistical analysis).
If i convert it to sqlite format (spatially enabled) the data shrinks ...
6
votes
5answers
2k views
Problem loading OS OpenData multipoint shapefile into PostGIS
I am trying to load the OS OpenData Strategi shapefile dataset into a PostGIS database. I have had no problems with the polyline and polygon shapefiles, but I am unable to get the point shapefiles to ...
6
votes
2answers
2k views
Derive WGS84 Longitude & Latitude from British Northings & Eastings
I'm looking for a fairly simple way to append columns with WGS84 longitude and latitude to a table containing northings and eastings. The source data is Ordnance Survey's CodePoint Open, which I is ...
4
votes
3answers
210 views
Open source database of world locations [duplicate]
Possible Duplicate:
Comprehensive list of Latitude and Longitude values of cities round the world
i would like to know if is out there any downloadable database of world locations,
i know ...
3
votes
5answers
1k 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
2answers
756 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 ...
2
votes
3answers
114 views
coordinate definitions from nyc.gov open data SpatialLocation field
The NYC Open Data website has a dataset of street events. The last column is called SpatialLocation, and is defined as a text field. An example is below. It is clearly two points on a physical map. ...
2
votes
4answers
143 views
Where can I get free New Zealand and Melbourne geodata?
I have just installed QGIS. Do any forum users know where I could download or access files and maps for 1) New Zealand, and/or 2) Melbourne/Victoria, Australia. Preferably it would be good to know ...
2
votes
3answers
155 views
What are the licence limitations on the free Ordnance Survey (OS) data sets?
The OS has some “free” map data, but what am I allowed to use it for?
1
vote
1answer
229 views
Direction on OS Meridian data
I've been looking to use the Ordanance Survey's Meridian data (part of the their OpenData suite) for doing vehicle routing.
Whilst I can infer road class from the NUMBER property on each polyline, I ...
