Relations/Proposed/Label

From OpenStreetMap

This relation should allow the renderer to place the label or icon describing an area in a manually specified position.

Contents 1 Tags 2 Members 3 Rendering 4 Notes 5 References

Tags

Key	Value	Discussion
type	label	defines the type of the relation

Members

Way or Node	Role	Recurrence?	Discussion
	label	1	node at which icon/label should be placed
	object	1	the area that is being labeled

Rendering

If the renderer wants to place a label or icon in an area, it checks whether that area is member of a label-relation. If so, it places the icon at the label-node, else it places it in some ad hoc manner (barycenter, ...).

Notes

• The specifics are very much open for discussion.
• Would it make sense to allow more general objects? We might want to allow labelling ways or composite areas -- can roles be members of roles?
• This might be merged with Relations/Proposed/Site as a one-object site, but then we should rethink the naming.
• Do we want to include a mechanism for stating that there shouldn't be a label/icon?
• should this go into a rendering namespace (type=rendering:label)?

References

• [1] osm-talk discussion on parking area icon placement
• [2] proposal of use of labelling relation