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EDINA Digimap’s OS Collection: Boundary Download Vivienne Carr James Crone.

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Presentation on theme: "EDINA Digimap’s OS Collection: Boundary Download Vivienne Carr James Crone."— Presentation transcript:

1 EDINA Digimap’s OS Collection: Boundary Download Vivienne Carr James Crone

2 Digimap Training Workshops Meeting content Digimap’s OS Collection Data Download Services Digimap’s OS Collection Boundary Download: –What’s available? Code-point Code-point Polygons OS Boundary Line GB National Boundaries and GB National Grids –Onward use of data Unzip data files Data formats & conversion –Desktop sharing

3 Digimap Training Workshops Meeting content Digimap’s OS Collection Data Download Services Digimap’s OS Collection Boundary Download: –What’s available? Code-point Code-point Polygons OS Boundary Line GB National Boundaries and GB National Grids –Onward use of data Unzip data files Data formats & conversion –Desktop sharing

4 Digimap Training Workshops Data Download Services Accessed from Digimap’s OS Collection Home page

5 Digimap Training Workshops Data Download Services Data Download MasterMap Download Boundary Download Gazetteer Download Gazetteer Plus

6 Digimap Training Workshops OS Products available

7 Digimap Training Workshops Meeting content Digimap’s OS Collection Data Download Services Digimap’s OS Collection Boundary Download: –What’s available? Code-point Code-point Polygons OS Boundary Line GB National Boundaries and GB National Grids –Onward use of data Unzip data files Data formats & conversion –Desktop sharing

8 Digimap Training Workshops Boundary Download Home Page OS Code-Point – postcode listings or postcode polygons OS Boundary lines – e.g. counties, unitary authorities, electoral areas National GB boundaries

9 Digimap Training Workshops Date of last updates by OS Code-Point, March 2009 Boundary Line: –April 2009, NTF format –May 2009, other formats Put into Digimap service in September 2009

10 Digimap Training Workshops Meeting content Digimap’s OS Collection Data Download Services Digimap’s OS Collection Boundary Download: –What’s available? Code-point Code-point Polygons OS Boundary Line GB National Boundaries and GB National Grids –Onward use of data Unzip data files Data formats & conversion –Desktop sharing

11 Digimap Training Workshops Code-Point OS Code-Point: National Grid co-ordinates for a point within each postcode unit in Great Britain OS Code-Point Polygons: Digital postcode unit boundaries Available at area level (e.g. AB, CF) or district level (AB1, AB2 etc). District level not available in NTF format.

12 Digimap Training Workshops Code-Point at Area level Can select up to 5 postal areas Vertical streets included in area files

13 Digimap Training Workshops Code-Point at District level First, select an area

14 Digimap Training Workshops Code-Point at District level Then select the districts of interest Separate vertical street file provided for entire area, when you download district files

15 Digimap Training Workshops Code-Point data Also provided: NHS region, NHS authority, County, District, Ward, Postcode Type

16 Digimap Training Workshops Code-Point Code-point data, on 1:10000 Scale Raster background

17 Digimap Training Workshops Code-Point Polygons Code-Point data and Code-Point Polygons, on 1:10000 Scale Raster background

18 Digimap Training Workshops Meeting content Digimap’s OS Collection Data Download Services Digimap’s OS Collection Boundary Download: –What’s available? Code-point Code-point Polygons OS Boundary Line GB National Boundaries and GB National Grids –Onward use of data Unzip data files Data formats & conversion –Desktop Sharing

19 Digimap Training Workshops Boundary Line Available: County, European constituencies, Greater London Authority, Metropolitan districts, Scottish parliamentary electoral region, Unitary Authorities, Westminster constituencies, Extent of the realm Boundary datasets for use with census datasets, available in UKBORDERS :

20 Digimap Training Workshops OS Boundary Line – SHP or MIF/MID Select boundary type > Receive one chosen boundary type for all areas

21 Digimap Training Workshops OS Boundary Line - NTF Select area > Receive all boundary types for one area

22 Digimap Training Workshops Boundary Line Scotland and Wales Constituencies, 1:25000 Raster background of Edinburgh area

23 Digimap Training Workshops Boundary Line Greater London Constituencies, labelled, 1:25000 Raster background

24 Digimap Training Workshops Meeting content Digimap’s OS Collection Data Download Services Digimap’s OS Collection Boundary Download: –What’s available? Code-point Code-point Polygons OS Boundary Line GB National Boundaries and GB National Grids –Onward use of data Unzip data files Data formats & conversion –Desktop sharing

25 Digimap Training Workshops GB National Boundaries & Grids National Boundaries have been derived from Ordnance Survey’s Strategi data National Grids have been created by Ordnance Survey

26 Digimap Training Workshops GB National Boundaries 4 options – GB, England, Scotland, Wales

27 Digimap Training Workshops GB National Grids 4 options – 1km, 5km, 10km, 100km

28 Digimap Training Workshops Meeting content Digimap’s OS Collection Data Download Services Digimap’s OS Collection Boundary Download: –What’s available? Code-point Code-point Polygons OS Boundary Line GB National Boundaries and GB National Grids –Onward use of data Unzip data files Data formats & conversion –Desktop sharing

29 Digimap Training Workshops Unzip process 1. Data.zip 2. Unzip Data.zip: 1.Contents.txt, 2.Conditions.txt, 3.Data files

30 Digimap Training Workshops Contents of Code-point download

31 Digimap Training Workshops Meeting content Digimap’s OS Collection Data Download Services Digimap’s OS Collection Boundary Download: –What’s available? Code-point Code-point Polygons OS Boundary Line GB National Boundaries and GB National Grids –Onward use of data Unzip data files Data formats & conversion –Desktop sharing

32 Digimap Training Workshops Data formats CSV – Comma Separated Values DXF – Drawing Exchange Format SHP – ArcView Shapefile MIF/MID – Map Info Interchange format NTF – National Transfer Format

33 Digimap Training Workshops CSV format Necessary to convert a CSV file to a DBF 4 file, prior to import to ArcGIS Can do this in MS Office 2003, but not in MS Office 2007 –A possible workaround is to open the CSV file with Open Office, then save as DBF

34 Digimap Training Workshops Save CSV as DBF4

35 Digimap Training Workshops Save CSV as DBF4

36 Digimap Training Workshops Shape files Shape files do not require any conversion prior to use in ArcGIS Remember to keep all files together - SHP, PRJ, DBF, SHX:

37 Digimap Training Workshops NTF format Conversion will be required before use in ArcGIS ESRI Productivity Suite (ArcGIS V9.2 or later) – this must be requested from CHEST separately, via your institutional CHEST representative. Map Manager (ArcGIS V9.1 or earlier) Either of these tools can be used to convert NTF files to ESRI Personal Geodatabase format

38 Digimap Training Workshops Meeting content Digimap’s OS Collection Data Download Services Digimap’s OS Collection Boundary Download: –What’s available? Code-point Code-point Polygons OS Boundary Line GB National Boundaries and GB National Grids –Onward use of data Unzip data files Data formats & conversion –Desktop sharing

39 Digimap Training Workshops Resources Digimap OS Collection Help pages – Boundary Download: –Download instructions –Code-Point and Code-Point Polygons user guides –Using NTF data with ArcGIS v3.x –Using NTF data with ArcGIS v9.x EDINA Training guides: Ordnance Survey website: – General product information:


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