Nigel James Bodleian Library Online Maps Sources of digital mapping
What is digital mapping? Raster mapping – scanned paper maps Digital map data – viewed with specialist software Choice depends user’s requirements
Raster mapping No special software required Can be inserted directly into a document Limited modification possible
Raster mapping Widely available on the WWW Both historic and modern mapping Remote sensing imagery available Free access does not mean free to use!
Digital map data Controlled access – most data is licenced No charge to university members Can be extensively modified and adapted To suite specific needs
Ptolemy Cosmographia Source: Map History website
Source: The World Factbook website
Source: David Rumsey Map Collection website
Source: The World Factbook website Resizing raster mapping
Source: Global Insight digital dataset Resizing digital map data
Source: Global Insight digital dataset Resizing digital map data
Sources of digital map data Bartholomew digital data - available in the Bodleian Map Room and on OXLIP Global Insight world dataset - available in the Bodleian Map Room only 3 world datasets Europe dataset Great Britain dataset London dataset Various other datasets – GB census boundaries and World thematic data, for example
Sources of digital map data Ordnance Survey Digital Data from DIGIMAP Available free to registered users Range of datasets available OS Strategi dataset 1: OS Land-line dataset 1:1250
Sources of digital map data Ordnance Survey Digital Data from DIGIMAP Raster data also available Georeferenced for use in a GIS OS 1: raster dataset OS 1: raster dataset