Slides used in a webinar for Digimap users. Digimap is a service for UK higher education that provides maps and map data to registered users. Webinar provided some tips on use of map data.

1. Digimap data in GIS
23 October 2013
James Crone, Edina Geo User Support
Vivienne Carr, Edina User Support

2. Content
• Roam
• Data Download
• Issues for users:
•
•
•
•
Unzipping
Formats
Tile sizes
Styling vector data
• Demo:
• View vector and raster data to ArcMap
• Digimap OpenStream
• Copyright and Resources

3. Digimap OS Collection
• Roam –
view, annotate,
print OS maps at
a range of fixed
scales
• Data Download
– download OS
mapping data
for use in
GIS/CAD

4. Roam
Save & open
maps, Print, Map
Content, Map
Info.
Search, scale bar,
overlays, annotate,
measure, change
basemap

5. Annotation tools
• Toolbar appears at the top of the screen – can be moved around
• Main options to add annotations in the Draw & Create area – add
symbols, text, lines, polygons, pre-defined shapes
• Options:
•
•
•
•
Make visible on PDF map print
Save map and annotations within Digimap (can display annotations in any Digimap
Roam service e.g. Ancient Roam)
Export annotations – available formats: Shapefile, KML, GeoJSON
Import annotations – following formats: Shapefile, KML, GPX, CVS, GeoJSON

6. Data Download
• All available OS
map data in Data
Download
• Download several
map products in
one order
• 5 categories of
map data
• 3 steps to order
map data
• Maps provided for
context only

7. Data Download
Click + or on category name to open
and see available map data products:
• OS MasterMap – most detailed
topographic mapping of
GB, transport network map data
• Background Mapping – raster
maps at range of scales, all in TIFF
format
• Land and Height data – contours
and Digital Terrain Models
• Vector data – range of scales and
formats
• Boundary and Location data –
administrative
boundaries, postcode
data, gazetteers

8. Using Data Download
3 step process:
1. Select area
2. Choose maps
3. Add to basket
– Options to change
format, date and
layers

9. Basket options
• Click Change to select format, layers and map date
• Options vary between map data products

10. Available datasets and dates
http://digimap.edina.ac.uk/webh
elp/os/data_information/os_data
_issues/os_update_dates.htm#

11. Issues for Digimap users
• Formats - some vector map data formats available from
Digimap may not be compatible with your GIS/CAD software
• Unzipping – all data is provided in a zip archive file.
Sometimes data is zipped within the zip archive!
• Tile sizes - map data products are provided in different tile
sizes
• Styling of data – vector map data downloaded from Digimap
will not have a cartographic style, when viewed in GIS/CAD

12. Poll
What software do you use most often with geospatial
data?
A. ArcGIS
B. CAD
C. QGIS or other open source software
D. I don’t use any software
E. Other

13. Unzip standard Digimap zip files
• You will download 1 zip archive file for each
order you place in Data Download
• Use the standard Windows unzip facility to
unzip and extract the file contents to a
location on your computer

14. Unzip standard Digimap zip files
Zip archive file contents:
• Sub-folder for each map product in your order
• Citations and contents text documents at top level

15. Sub-folder contents
• Within each sub-folder, data files and conditions of use text file.
• Data from Digimap OS is covered by the Digimap licence OR the OS
OpenData licence. So each data folder has a conditions document that
specifies which conditions apply.
• NOTE: for some products, the map data will be zipped in the sub-folder.
Image of Vector Map District data. Check before you try to add it to your
software!

16. OS MasterMap zip files
• OS MasterMap vector data is delivered in GZip file - GML data
within the GZip
• Can extract the GML file from the GZip file…but generally not
necessary to do this.
• Note: standard windows unzip will not extract the Gzip. Use
WinZip, 7Zip, Gzip.

17. Formats and conversion guidance
http://digimap.edina.ac.uk/webhelp/os/data_information/data_formats/new_data_translators.htm

18. Data formats
Format
Compatibility
DXF, DWG
Drawing Exchange, or Drawing, format, AutoCAD
MIF/MID
MapInfo format
NTF
National Transfer format, non-proprietary. Older format,
developed in 1990s.
GML
Geography Markup Language, non-proprietary
SHP
Shape file, ArcGIS format
TIFF
TIFF image format, used for background mapping products.

19. TIFF files
•Raster data (backdrop mapping) all
supplied in TIFF image format, with a
TFW file
•TIFF World Files contains
location, scale and rotation of TIFF
map. Keep in same folder as TIFF
files!

20. Shape files
•
•
•
ArcGIS
format, can be
used in other
software too.
Remember to
keep all
constituent
parts together SHP, DBF, SHX, P
RJ.
Image of folder
containing
VectorMap Local
shape files

21. Using OS MasterMap
• OS MasterMap supplied in GML format (within a GZip file)
• Possible to import directly to many software packages, may get better
results if convert to a compatible format.
• Conversion options?

22. Conversion tools
ESRI Productivity Suite
• Converts OS MasterMap data in
GML format to ESRI Personal
Geodatabase format
• Converts NTF data to ESRI Personal
Geodatabase format
• Free if your institution has a licence
for ArcGIS – ask your Eduserv CHEST
rep.
• Evaluation version:
http://www.esriuk.com/software/arcgis/pr
oductivitysuite/download

23. Conversion tools
• Free download, which converts MasterMap GML data to ArcGIS, CAD and
MapInfo formats
• http://misoportal.com/data/interpose-for-digimap/

24. InterpOSe output formats

25. Tile sizes
•
Map data from Digimap is typically provided in
tiles that have been referenced to the British
National Grid - exceptions are OS MasterMap
vector data, gazetteers, products provided with
national coverage such as Boundary-Line.
•
Data from Digimap is in a range of sizes, from 1
x 1 km tiles to 100 x 100 km tiles.
•
Typically the more detailed the map data, the
smaller the tile size, e.g.:
Product
Tile size
1:50000 raster
20 x 20 km
1:250000 raster
10 x 10km
Vector Map Local 5 x 5km
1:10000
Vector Map
District 1:50000
100 x 100 km

26. Merging tiles
• Where tiles are provided in
smaller sizes, e.g. 5 x 5 km,
possible to merge them into one
Image: OS Terrain contours in
ArcMap, for area of South East England

27. Clipping tiles
• Where tiles are provided
in large sizes e.g. 100 x
100 km, possible to clip
them to smaller area
Image: Vector Map District clipped to
smaller area in ArcMap

28. Styling vector data
• Vector data (e.g. OS MasterMap, OS VectorMap Local) will not have
the same appearance as it does in Digimap, when viewed in ArcGIS

29. Styling options
In ArcGIS – do this in
Symbology tab of map
layer properties:
1.Generate your own style
using layer attributes
2. Apply a layer file that
contains styling
information – find available
files in OS and Marine Help
pages. Geology
Digimap, layer files
provided in download file.
3. Match to symbols in a
pre-installed style, e.g.
from InterpOSe

30. OS MasterMap symbology
• Productivity Suite:
– symbology files available with the evaluation software:
http://www.esriuk.com/software/arcgis/productivitysuite/download#
• InterpOse – provide a style file for ArcGIS with the InterpOSe installer
• AutoCAD – template file available from AutoCAD website. Load the template
file, then the OS MasterMap data:
http://www.autodesk.co.uk/adsk/servlet/item?siteID=452932&id=7986865
• Digimap guides on all of the above processes here:
http://digimap.edina.ac.uk/webhelp/training/training.htm

31. Demo
• ArcGIS v10
• Map data for
Cumbria area
• Add raster data,
point data,
Digital Terrain
Models and
contours
• Plus annotation
from Roam

32. Data Download
• Data
categories

33. 1. OS MasterMap
•
Vector map product
•
Most detailed mapping available of GB
•
Digimap offers 2 layers from the 4 layers of OS
MasterMap - Topography and ITN. Others are Imagery
and Address Layer.
•
Change Only updates available

34. 2. Backdrop mapping
•Largest scale at top

35. 2. Backdrop mapping
• Information boxes
indicate:
–
–
–
–
–
Scale
Format availability
Version
Data Allowance
Terms of use

36. 3. Land and Height data
Created
Scale
Formats
2009
1:10000
DXF, NTF
Terrain 50 2013
contours
1:50000
Shape,
GML3
Panorama 1996
contours
1:50000
DXF, NTF
Profile
contours

37. Land and Height data
• DTM? Digital Terrain
Model, useful for 3D
modelling of terrain.
• DTMs available in
DXF, NTF, ASC, TIFF
formats

38. 4. Vector Data
• Largest scale at top, VectorMap Local
1:10000
• Smallest scale is Strategi, 1:250000
• Formats available for products not
consistent, e.g.:
– Vector Map Local – GML, DWG, SHP
– Strategi – SHP, DXF, TAB, NTF, MIFMID

39. 5. Boundary and Location Data
• Boundary-Line - administrative
boundaries e.g. counties, unitary
authorities, electoral areas. Shape
format.
• Code-Point – coordinates for
postcodes, boundaries for postcodes.
CSV, NTF (Code-Point). Shape, MIFMID (Code-Point Polygons).
• OS Locator – gazetteer of road names.
CSV.
• Entire 1:50000 Scale Gazetteer,
260,000 entries. CSV.
• National Grid square outlines, GB
National outlines – Shape, MIFMID,
DXF.

40. 1:50000 Scale Gazetteer
• Place name searches in Digimap
use the OS 1: 50000 Scale
Gazetteer
• Same database that is used on
OS Landranger Map
• Download entire Gazetteer from
Data Download, CSV format

41. Gazetteer Plus
• Or download selected
records using Gazetteer
Plus – CSV, TAB or XML
formats

42. OpenStream
•
Service open to anyone
with .ac.uk email
address
•
Stream following OS
map data direct to GIS:
• MiniScale®
• 1:250,000 Scale
Colour Raster
• OS Vector Map™
District (Raster)
• OS Street View®
http://openstream.edina.ac.
uk/terms

43. OpenStream

44. OpenStream API key
• Add my API key to the OpenStream URL:
http://openstream.edina.ac.uk/openstream/wms?toke
n=[your_apikey]
• Setup this URL in my GIS > allows me to stream OS data

45. Permitted Uses
Summarised as for Educational Purposes:
• Teaching, academic research, limited internal business use
–
–
–
–
Includes institutional publicity
Public lectures
Conference demonstrations
Private study/personal development including student societies
work
– Teaching practice (B.Ed. PGCE etc)
Excludes:
– Institutional estate management
– Running the institution as a business
– Courses for commercial gain

46. Publication
• You can publish Licensed Data and materials which contain
Licensed Data
• Subject to some restrictions which are detailed in the Licence
• Includes various publications
• Copyright acknowledgement required:
‘© Crown Copyright and Database Right [Year of supply or
date of publication].Ordnance Survey (Digimap Licence)’
– Copyright acknowledgement is included on all maps printed from
Digimap Collections.
– Remember to include copyright acknowledgement if you download
data from Digimap and create maps!

47. Sharing Licensed Data
• You may only share Licensed Data with:
– other Authorised Users
– Public Sector Mapping Agreement (PSMA) members
– One Scotland Mapping Agreement (OSMA) members
– Sponsors who have their own licence for the same data (type and
coverage)
• Sponsored research:
– Results must be published widely and immediately
– Hard copy plots can be supplied to sponsors
– DATA cannot be supplied to sponsors
– Excludes Research Council funded research centres with their own
Ordnance Survey licence e.g.:
 Institute of Hydrology
 British Geological Survey

48. Support with copyright
• Lists of Frequently Asked Questions:
http://digimap.edina.ac.uk/webhelp/digimapsupport/access/licence_ag
reements.htm
• Your site representative:
http://digimap.edina.ac.uk/webhelp/digimapsupport/service_info/site_r
ep_list.htm
• EDINA Help Desk:
edina@ed.ac.uk
0131 650 3302

49. Resources
• Digimap Resource
centre – access
help pages,
guides, FAQs,
videos, case
studies and more.