Using relations
To create a new Relation in Potlatch v1, click on a way or node, then click on the button at the bottom-right of the screen with two intersecting circles. It's a good idea to have looked at a similar relation before, and taken notes of the tags on the relation (to access the tags on a relation, go to any member, and click on the "tag" for that relation). You'll have to type them in (no hints provided by the editor!)
To add a new member to a relation in Potlatch, first find an existing member (preferably one that is a member only of that relation). Then click on the new member. Then shift-click on the button with the two intersecting circles (this copies the relation memberships from the previously selected way or node to the currently selected way or node). It also copies the role, which you may need to change. You also can pick the relation from a list of nearby relations, but that is unwieldy if there are a lot of nearby relations.
To create a new relation in JOSM:
- In the Relations panel click on the "Create a new relation" button
- In the "Create new relation" window add the appropriate tags
- Click OK to close the "Create new relation" window
To add new members to a relation in JOSM:
- In the main window select the ways/nodes to be added to the relation
- Select the required relation from the list of relations in the Relations panel
- Click on the "Open an editor for the selected relation" button
- In the "Edit relation" window select the existing member (if present) that the new node/way is next to and click on the appropriate "Add all primitives..." button in the Selection area
- Click OK to close the "Edit relation" window
JOSM allows you to sort members, and this is recommended for route relations. Sorting the members allows you to ensure the members are connected, and to locate any "holes" in the route. To sort the members click the A-Z button in the relation editor.
Tools
- Information about a relation: Example id=11
- History of a relation: Example id=11
- Render a relation:Example id=11
- Visualise a relation on a map
- OSM Relation Analyzer
- Relation Check
- Relation Diff
- Relation lists
- Rel2gpx
