From State of the Map US 2012 in Portland — on how to use OpenSeaMap tagging for digital chart data and maritime mapping.

1. Tampa Bay Marine Mapping
with OpenStreetMap
Coleman McCormick
@colemanm

2. Sailing
Boating
Fishing
+
Mapping
osm.org/user/coleman
@colemanm

6. CHARTS

7. GOOD
Artistic
Functional
Information-dense

8. Outdated
Paper & water don’t mix
Data is inherently non-portable
NOT SO GOOD

9. Daymarks

10. Soundings

11. Landmarks

12. Lights

13. Channels

14. How do I map these things?

15. OpenSeaMap
Free & open nautical chart
Uses the OpenStreetMap database
openseamap.org

19. Beacons Buoys Lights Anchorages

20. Tagging Examples

21. seamark:type = beacon_lateral
seamark:name = 44
seamark:beacon_lateral:category = port
seamark:beacon_lateral:colour = red
seamark:beacon_lateral:height = 3
seamark:topmark:shape = cone, up
seamark:topmark:colour = red
Standard daymark

22. seamark:type = notice
seamark:name = No Wake
seamark:notice:category = no_wake
seamark:notice:function = restriction
Notice to boaters

23. seamark:type = light
seamark:light_minor:colour = red
seamark:light_minor:character = Fl
seamark:light_minor:period = 4
seamark:light_minor:range = 3
seamark:light_minor:height = 4
Light

25. Editing Work!ow

26. Dogfooding our own software
Fulcrum

28. geoJSON feature output:
{
"type": "Feature",
"properties": {
"seamark:type": "beacon_lateral",
"seamark:name": "11",
“seamark:beacon_lateral:category”: “starboard”,
“seamark:beacon_lateral:colour”: “green”,
"seamark:beacon_lateral:shape": "pile",
"seamark:beacon_lateral:system": "iala-a"
},
"geometry": {
"type": "Point", "coordinates": [ -82.817967, 28.032795 ]
}
}

30. ./ogr2osm.py openseamap_markers.geojson
openseamap_markers.osm
http://svn.openstreetmap.org/applications/utils/import/ogr2osm/

33. Custom database tables from extracts with imposm
http://imposm.org

34. imposm -U dbuser -d dbname -m spinnaker-mapping.py
--read --write --optimize --deploy-production-tables
florida.osm.pbf

36. Custom Electronic Charts

40. Thanks!
http://j.mp/seamarks
http://openseamap.org/
https://github.com/omniscale/imposm
https://github.com/colemanm/spinnaker
coleman@spatialnetworks.com