Carol Blackwood – Geo User Support

Vivienne Mayo – User Support

Digimap Roam webinar

12th November 2014

Digimap’s Ordnance Survey Collection

What can I do with Roam?

• View current OS maps

• Customise your map:– Add annotations– Select map features– Select different basemap– Add hillshading

• Measure lines and shapes

• Save map within Roam

• Import your own map data – points, lines or polygons

• Print A4 – A0

Roam

Zoom in/out, 14 fixed scale map views of different OS maps

Save within Digimap, Print

A4-A0Search, Map tools,

Overlays, Basemaps

Map Content, Map Information

Content

Look at all Roam features:

1. Helvellyn– Search, navigate, select map features, measure, add hillshading

2. Archaeological dig site– Change basemap, add polygon & label, save, print

3. Carlisle Flood Warning areas– Import your own map data

Map 1 – Helvellyn• Place name

search• Zoom out • Map Content:

only want to display water and land features

• Measure shape• Overlays – add

hillshading

Search

• Can pan/zoom to your location, or use Search

• Tab 1: place name/ road / postcode

• Tab 2: British National Grid reference or Lat/Long

Place name Gazetteer

• Place name search uses the OS 1: 50000 Scale Gazetteer

• Same database that is used on the Landranger Maps

Zoom in/out• Map

centred on Helvellyn

• Now I can zoom in/out and pan around

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 NSEW on the compass

• Full extent / Previous / Next views

Zoomed out to Metropolitan View

Map Information

Details:• Map product• Data licence – 2 possibilities:

– OS Licence (Digimap licence, educational use only)

– OS OpenData (wider use permitted, see OS Open Data website for full details)

• Date of creation by OS• Default print scale• Grid references

Map Content

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

Map Content

• Feature selection available in 8 of Roam’s 14 views

• Unavailable when you are viewing a raster map - when unavailable, you will see the message ‘View has no layer selection’

• TIP: check the basemaps for alternative maps where feature selection may be possible

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.

Measurements

• Available under Map tools

• Measure distances or areas

• Not possible to save the measurements or print on your map

Hillshading

• Will be other overlays available in future

Map 2 – Archaeological dig site• Search

using a postcode

• Zoom in• Add a

polygon and a label

• Basemaps• Print• Save

options

Search with postcode

Zoom in

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 map, some of basemaps are vector.

Annotation tools• Now, we want to add a polygon over the

empty site• Easier to select colour and line

colour/width before you draw

Adding polygon

• Click once on each point

• Double click at last point to close it

Label the polygon

• Two options: 1. add standalone

label, 2. add label to the

polygon (if you move polygon, label moves with it)

• Again, easier to select font options before adding label

Add Measurement Label

Print

Print

Note 2 tabs:1. Content shows

type of map2. Layout shows

area covered by map (changes if select different scale or paper size)

Map and legend• If you select Add Legend

option, receive a zip file

• Zip file contains 2 PDF files, map and legend

PDF print example

Legend extract

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

Display annotation in another Roam

Display annotations in another Roam

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

Map 3 – Carlisle Flood areas

• Import the flood warning area polygons

• Change basemap

• Map Content• Label the rivers

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

• For our map, we will import a shapefile of polygons of Flood Warning areas– Source of this data is the

Environment Agency website

Map displaying imported file

Zoom out to District View

Map Content, basemap, labels for rivers

Resources• Chat tool – users

can chat to staff in office hours. Well used.

• Digimap Resource centre:– Working to

streamline and organise.

– New YouTube videos.

• What do you need?

Training

• We can run a course at your institution.• Materials to run your own workshops available in Digimap

Resource Centre:

Questions

• Ask us anything!