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

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

"Multi-Use"

Four benches with this tag as

Police-Box (TARDIS)

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