Staffs LUG 14th January 2020
6. Sources of Data
- Initial
- GPS Devices - Increasing accuracy enabled OSM
- provide .gpx files - industry standard XML
- Photos - (with geotagging) show names etc
- Old Maps - 50 year copyright (Nat Library of Scotland archive
- Local knowledge / surveys
- Aerial Photography - subject to copyright - Yahoo early provider
- 2010 onwards - easier to trace
- OS - Liberalisation - OS Open Street View
- Microsoft provides Bing Aerial photography
- Steve Coast joins M/S for 2/3 years
- OSM Foundation - strict on Copyright
- if in doubt - don't use
- Google ?
- makes maps available but keeps copyright
- doubts on long term consistancy
- Google – limited data – no footpaths
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