Nigel JamesBodleian Library

Online MapsSources 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 adaptedTo suite specific needs

Ptolemy Cosmographia 1492. 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 dataBartholomew 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 andWorld thematic data, for example

Sources of digital map dataOrdnance Survey Digital Data from DIGIMAP

Available free to registered users

Range of datasets available

OS Strategi dataset 1:250 000 OS Land-line dataset 1:1250

Sources of digital map dataOrdnance Survey Digital Data from DIGIMAP

Raster data also available

Georeferenced for use in a GIS

OS 1:25 000 raster datasetOS 1:10 000 raster dataset