tim waters openhistoricalmap geomob london july 2015
TRANSCRIPT
What it isn't (quite)
Historical Objects in OSM
What is it? (The logo is a hint)
OpenHistoricalMap.org
Most modest mapping project EVER!
Everything that has ever existed
World's most out of date map.
OSM StackSeparate Server
Separate Database
Planet
Overpass API
http://overpass.openhistoricalmap.org
Examples
Hunterston Scotland 19C
Hunterston Scotland Now
Saeby – Denmark 18C
Saeby – Denmark Now
Roman Roads
Roman Mainz
WWI Trenches, Artillery positions etc
Paris 19C
Snows Infected Pump
Snows Infected Pump
in OHM
Burning Man 2008/9
OHM OSM
20C Treasure Island - SF Bay
Manhattan 1854
How to add stuff to OHM
A very old garmin
Imports
Archive from OSM
Tracing from Historical Maps
WikiMedia Commons - Wikimaps
Wikimaps
Editing
● Tags – normal OSM ones● start_date end_date
– YYYY / YYYY-MM-DD
● Note of source map would be nice
Simple?
● Rabbit hole● Cart before horse?● Gregorian dates.● Vagueness / fuzzy
imho
● OSM way - – good enough is better than perfect.
● Contributors not historical GIS “experts”● Do whatever and let the renderers sort it out!
Future● More Map layers ● Timesliders everywhere!● Vector tiles● Better tracing tools
OpenHistoricalMap.org#ohm on irc.oftc.nethttps://lists.openstreetmap.org/listinfo/historichttps://github.com/openhistoricalmap/
“Chippy” @tim_waters [email protected]