Key:3dmr

3dmr
Description
The ID of the 3D Model Repository's 3D representation of the feature.
Group: Annotations
URL pattern
https://3dmr.eu/model/$1
Used on these elements
See also
wikimedia_commons=*
Status: abandoned
3dmr=* More details at taginfo More details at taginfo
Tools for this tag
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The ID of a 3D model of the feature, hosted on the 3D Model Repository.

The 3D Model Repository is a free and open collection of 3D models, under licenses compatible with OSM data. These can be used by 3D renderers to go beyond what's possible with Simple 3D Buildings and similar tagging schemes, while still relying on OSM data for the rest of the scene.

Usage

Usage of the tag is 3dmr=<id>, where id is the ID of the model in the 3D Model Repository.

A 3D renderer supporting this tag may then ...

• obtain the model from the 3D Model Repository and place it in that location, and
• ignore the tagged OSM elements for 3D rendering, to avoid duplication.

Additional tags

At least the following existing keys are taken into account to scale and rotate a generic model:

• direction=* with cardinal directions or angles as the value
• height=*
• width=*
• length=*

Other tags and conventions (e.g. deriving a bollard's rotation from the way containing it, ...) should also be taken into account by data consumers supporting this tag.

Suitable features

The tag applies to all elements – nodes, ways, areas, and relations. When applied to a relation (e.g. a bridge relation or parking relation) or outline (e.g. a building=*) area), features that semantically belong to these "root" elements should also be replaced with the model.

Creating new elements for the sole purpose of linking a model from the 3D Model Repository should be avoided wherever possible. Usually, this is a sign that the linked model does not have the intended granularity: Instead of creating a single model containing both a castle and the decorative fountains in front of it, for example, the model should be subdivided into separate models for the building and fountains. These can then be easily linked to existing OSM elements.

Examples

Photo	Tagging	Interpretation
	node or area, tagged amenity=fountain 3dmr=42	Link to an external model for an historic fountain. This id will only appear in the database once, as the fountain is unique.
	4 nodes, each tagged amenity=bench 3dmr=42 direction=* The direction key defines the facing of the bench, as usual.	Link to a model for the bench design. There will be four instances of the same model. Example
	area, tagged building=* 3dmr=42	Link to a model of the building. Like the fountain example, but also replaces any building:part=* elements and indoor features of this building. Example
	area, tagged man_made=bridge 3dmr=42	Link to a model of the bridge. Implicitly includes the road(s) and other features on top of the bridge, as well as bridge:support=* and other related elements.

Rendering examples

"Single-Use"

London Eye with tag

• http://www.openstreetmap.org/way/204068874
• http://osmgo.org/go.html?lat=51.50218387816582&lon=-0.11994838714599611&view=-10&ele=100&con=1&tiles=1&opt=0

"Multi-Use"

Four benches with this tag as

• http://www.openstreetmap.org/changeset/54561403
• http://osmgo.org/go.html?lat=41.69230008&lon=-8.82631887&ele=1.50&dir=351&view=-7&con=2&opt=0&name=beton

Police-Box (TARDIS)

• http://www.openstreetmap.org/node/3701919583

See also

• Wikimedia Commons also hosts 3D models for use with the wikimedia_commons=* or wikidata=* keys
• Diary with posts about the repository's development