geology digimap 29 june 2010 vivienne carr. geology digimap jisc funded collection of geological...
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Geology Digimap
29 June 2010
Vivienne Carr
Geology Digimap
• JISC funded collection of geological maps and data, from British Geological Survey
• Available since January 2007
• 3 data products, most detailed is 1:50000 scale
• Complete coverage of Great Britain
Geology Digimap Home Page
Session Objectives
Geology Roam Creating maps Storing maps Printing maps Future developments Screen sharing
Geology Download Data available Downloading data Using data Screen sharing
Questions
Geology Roam
Several improvements over existing facility:
larger map area, slippy maps, enhanced printing
Geology Roam
Navigation, Print and
Help
Task menu:
Search, customise,
get map info., save
maps
Map fade slider
Search – place name
Enter place name,
click Find
Search - place name
•List of matches for Liverpool returned
•Click once on your choice to generate a map centred on that location
Search - place name
• Place name database - 1:50000 Scale Gazetteer
• Any place name on OS Landranger maps can be used
• Street names cannot be used
Search – place name
Plot view returned
Postcode search
• Input full postcode
• Click Find
Postcode search
Detailed view
returned
Grid reference search
Grid reference search
Detailed view
returned with 8 fig grid ref.
Map Views
Panning
Click and drag on the map to move in any
direction
Or use compass to pan NSEW
Zooming
Use the scale bar to zoom in or out to next
view
•Double click to zoom in to that point•Use scroll bar to zoom in/out
Map fade slider
Map fade slider
Map fade slider
Map Information
Map Information:
•Current BGS map product•Current map extent•Cursor coordinates•Current print scale
Map details
Click once on any rock for
info.
My Maps
Click Save Current
Map
My Maps
•Enter a title•Click OK
My Maps
Map is now permanently available in My Maps
Click Print icon at top right
Check satisfied with print area selected – can click and drag on map to change it
Input title, select NG lines, layout (A3/A4, portrait/landscape)
PDF print generated, with copyright statement, date and time created
Future development
• September 2010 release:– Polygon highlighting
when retrieving map details
– Map-based links to a Geology Photography Collection (JIDI Images)
– Introduction of BGS Rock Lexicon as an independent application
• Existing map application will run in parallel until it is withdrawn in December 2010
Session Objectives
Geology Roam Creating maps Storing maps Printing maps Future developments Screen sharing
Geology Download Data available Downloading data Using data Screen sharing
Questions
Geology Download
Geology Download interface
Step-by-step download process:1. Identify the product/format2. Search for your location3. Choose the required tiles4. Make download settings5. Download data files
Step 1: Select product/format
• Select product• Choose data format: Shape (ArcGIS), or MID/MIF (MapInfo)
Step 2: Search for data
Step 3. Results list
Step 4: Choose data
• Select the required tiles from the list or map
• Select the required layers for those tiles
Step 4: Download settings
• Archiving and compression – Unix, PC, Mac?
• Large numbers of component files mean no individual file downloads
• All downloads delivered in .zip or .tar archives
Step 5: Downloading
• Use your browser's ‘Save link as..’ or ‘Save Target As…’ option
• Click the link to go to the download page
Unzip data.zip file
Download file contents
1 AVL file included with each layer of data
AVL files used to apply BGS data style in GIS
Data imported to ArcGIS, no data style applied
Data imported to ArcGIS, BGS style applied using AVL file(s)
Session Objectives
Geology Roam Creating maps Storing maps Printing maps Future developments Screen sharing
Geology Download Data available Downloading data Using data Screen sharing
Questions