Key:source:geometry
(Redirected from Key:source:geometry:ref)
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 source:geometry
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| Description |
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Indicates the source of the geometry of an object. 
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| Group: annotations |
| Used on these elements |
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| Documented values: 3 |
| Useful combination |
| See also |
| Status: de facto |
| Tools for this tag |
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Use the source:geometry=* tag to indicate the source of the geometry of objects added to OpenStreetMap. "Geometry" in this case means the shape and position of a node or way. If added to a way, there is no need to add the tag to the individual nodes that make up the way.
- This tag is especially useful when an object's geometry has been imported as it helps to keep a record of where the original data came from.
- The tag can also be used when tracing from aerial imagery, however you may wish to add a source to the changeset instead (which several editors, like iD, already have a place to add it).
Keep in mind that the current recommendation is to add source tags to the changeset instead of individual objects. For more information, see the Key:source page.
For tagging sources of other non-geometry information see source=*.
Other versions of this tag are used for the same purpose:
| source:position=* | |
| source:shape=* | |
| source:outline=* | |
| source:area=* | |
| source:footprint=* |
How to map
- Main article: Key:source
Values and usage are pretty much same as with source=* key:
- source:geometry=Bing + source:geometry:date=2012 — object was traced from Bing'12 imagery. Please note that Bing imagery date is not the same date when you trace it!
- source:geometry=survey + source:geometry:date=2014-11 — you can use current date if you place objects based on current information and your personal observations in OSM.