Slides used in a webinar on Roam, a mapping service within Digimap's Ordnance Survey Collection. Service is for UK Further and Higher Education.

1. Digimap: Making the most of Roam
Guy McGarva – Geo User Support
Ian Holmes – Geo User Support
Vivienne Carr – User Support

2. Digimap’s Ordnance Survey Collection
View,
annotate and
print OS maps

3. Roam
Save within
Digimap, Print
A4-A0
Map Content, Map
Information
Search, Map tools,
Overlays, Basemaps
Zoom in/out, 14 fixed
scale map views of
different OS maps

4. Content
• Map 1 Helvellyn
– Search, navigate, select map features, add hillshading
• Map 2 Archaeological dig site
– Change basemap, add polygon & label, save, print
• Map 3 Carlisle Flood Warning areas
– Import your own map data
Digimap Training Workshops

5. Map 1 – Helvellyn
• Place name
search
• Zoom out
• Map Content:
only want to
display water
and land
features
• Overlays – add
hillshading

6. Search
• Can pan/zoom to your
location, or use Search
• Place name/ full
postcode
• Advanced Search
offers British National
Grid reference search
• Coming soon: postcode
districts e.g. EH9,
street names

7. Place name Gazetteer
• Place name search uses
the OS 1: 50000 Scale
Gazetteer
• Same database that is
used on the Landranger
Maps

8. Zoom in/out
• Map
centred
on
Helvellyn
• Now I can
zoom
in/out and
pan
around
Digimap Training Workshops

9. Navigation
• Zoom in/out
– Click on any notch on the scale bar
– Double click to zoom in
– Scroll wheel on mouse
• Pan
– Click and drag the map
– Click on NSEW on the compass
• Full extent / Previous / Next views

10. Zoomed out to Metropolitan View

11. Map Content
• On this map, we are only displaying land and water features
• Removed roads, boundaries, tourist features etc

12. Map Content
• Feature selection available in 8 of
Roam’s 14 views
• When unavailable, you will see the
message ‘View has no layer selection’
• Unavailable when you are viewing a
raster map

13. Raster v Vector map data
• Raster map data is a matrix
of cells (or pixels) in a grid:
– scanned maps, digital aerial
photographs, satellite
images, digital pictures.
– geo-referenced, geographic
coordinates of the location
added.
– useful as background for
displaying other data.
• Vector map data stores data
on individual map features
e.g.
– Points such as train stations.
– Lines such as railway tracks
and rivers.
– Polygons such as buildings or
fields.
– We can view, query and
analyse vector map data.

14. Hillshading
• Will be other overlays available in future

15. Map 2 – Archaeological dig site
• Search
using a
postcode
• Zoom in
• Add a
polygon and
a label
• Basemaps
• Print
• Save
options

16. Search with postcode

17. Zoom in

18. Basemaps
• Basemaps offer maps at
same scale, in a different
cartographic style
• Available in several of
Roam’s map views:
–
–
–
–
Plan, Building and Detailed
Street, Neighbourhood
District
City, Metropolitan
• Tip: in Street and Neighbourhood
views, switching basemap means
you can select features in Map
Content…default is raster,
basemaps are vector.

19. Annotation tools
• Now, we want to add a polygon over the
empty site
• Easier to select colour and line
colour/width before you draw

20. Adding polygon
• Click once on each
point
• Double click at last
point to close it

21. Label the polygon
• Two options: add
standalone label, or add
label to the polygon (if
you move polygon, label
moves with it)
• Again, easier to select
font options before
adding label

22. Add Measurement Label

23. New print interface

24. New print interface
• What’s new?
– Content and
Layout
Previews
– Legend
option

25. Map and legend
• If you add the legend
option, receive a zip file
• Extract the files to see 2
PDF files, map and legend

26. PDF print example

27. Legend extract

28. Save
• Save > My Maps saves your map
within Digimap
– No limit to number of maps you can save
– Available as long as your registration
remains active
• Open > My Maps to retrieve your
saved maps
Digimap Training Workshops

29. Display annotation in another Roam

30. Display annotations in another Roam

31. Export annotations
• Save > Annotations to file, to
export annotations
• Could then use in GIS/CAD,
combine with your own data etc
• Formats:
– Shapefile can be used in most
GIS/CAD software
– KML can be displayed in Google
Earth
– GeoJSON useful for displaying in
web maps
Digimap Training Workshops

32. Map 3 – Carlisle Flood areas
• Import the
flood warning
area polygons
• Change
Basemap
• Map Content
• Label the
rivers

33. Import Flood warning areas
• Possible to import your own
map data to Roam
– Various formats can be imported
– Only importing the point, line or
polygon, not any associated
information
• We have a Shapefile of
polygons of Flood Warning
areas
– Source of this data is the
Environment Agency website

34. Map displaying imported file

35. Zoom out to District View

36. Map Content, Basemaps, Labels for rivers

37. Keep in touch
• EDINA Helpdesk
– email: edina@ed.ac.uk
– telephone: 0131 650 3302
• http://digimap.blogs.edina.ac.uk/
• http://www.facebook.com/EDINADigimap
• http://www.youtube.com/user/EDINADigimap
• http://twitter.com/edina_digimap