OpenStreetMap
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UC Davis Mapathon - November 2016
Many, many mobile & web apps...
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Telenav Scout
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OsmAnd
- Social Directions, Group Navigation
- http://www.telenav.com/products/scout/
- Alternative to Maps.ME
- Offline Maps, Android Only
- http://osmand.net/
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- Data Collection Platform
- GIS Rich Functionality
- Alternative to OpenDataKit
- https://www.amigocloud.com
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Apple Maps
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Web Apps
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Editors
iD
Web-based OSM Editor
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JOSM
Desktop Application
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Go Map!!
iOS
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OpenMapKit
OpenDataKit Based Editor
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OSM Data
Where you can get it....
OSM Editing API
The of OpenStreetMap
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Designed by Steve Coast, founder of OpenStreetMap
Planet OSM
Download everything...
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- http://planet.osm.org/
- Good if you are running a mirror.
- Minutely updates
- ~ 53 GB
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Custom query language to explore and find subsets of OSM data.
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Mapzen Metro Extracts
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Interactive Editing, Features for Small Area...
OSM Editing API
The Entire Planet...
planet.osm.org
Custom Queries...
Overpass API
Specific Metro Areas...
Mapzen Metro Extracts
Nodes, Ways, Relations
OSM Data Topology
A more flexible alternative to points, lines, polygons...
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Node
- defining points in space
- equivalent: point
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specific point on the earth's surface defined by its latitude and longitude
may have tags if standalone
Way
- defining linear features and area boundaries
- equivalent: line, polygon
- Way has ≥ 2 nodes
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open way (polyline)
closed way (closed polyline)
area (polygon)
Relation
- documents a relationship between two or more data elements
- equivalent: multi feature
- Relation has ≥ 1 nodes, ways, or relations
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multipolygon several closed ways
polygon with holes several closed ways
super relation several relations
Nodes, Ways, Relations
OSM Elements (Entity)
Tags
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Flexible, key/value attributes for nodes, ways relations.
If a node, way, or relation table had a column for each attribute....
Tags for a given element are not consistent. But, they follow a convention...
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OpenStreetMap
By Nicholas Hallahan
OpenStreetMap
- 1,226