Multipolygons as members not highlighted when relation is selected.

[skyper]

What steps will reproduce the problem?

1. add a multipolygon as member to a relation
2. select the relation via relation list toggle dialog

What is the expected result?

All members are highlighted in pink

What happens instead?

Only ways and nodes with membership are highlighted but no relations.

Please provide any additional information below. Attach a screen shot if possible.

I did test it with a route and a associatedStreet relation. Please have a look at attached example file​.

Repository Root: http://josm.openstreetmap.de/svn
Build-Date: 2014-05-20 01:35:44
Last Changed Author: simon04
Revision: 7146
Repository UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
URL: http://josm.openstreetmap.de/svn/trunk
Last Changed Date: 2014-05-19 18:17:18 +0200 (Mon, 19 May 2014)
Last Changed Rev: 7146

Identification: JOSM/1.5 (7146 en) Linux Debian GNU/Linux 7.5 (wheezy)
Memory Usage: 314 MB / 882 MB (186 MB allocated, but free)
Java version: 1.7.0_55, Oracle Corporation, OpenJDK 64-Bit Server VM
Java package: openjdk-7-jre:amd64-7u55-2.4.7-1~deb7u1
VM arguments: [-Djosm.home=/tmp/.josm]
Program arguments: [--language=en]
Dataset consistency test: No problems found

[skyper]

example file

[akks]

Actulally, the relation itself can not be highlighted, only its members.

If needed, I can add recursive highlight as an option. Not sure if should be defalut (highlighted relation can not be distinguished from highlighted member ways).

[skyper]

A multipolygon is always an area and it could be highlighted with or without its members (ways).

From a user's point of view a highlighting is needed. Otherwise you do not get any visual information and you need to take a look at every relation.

[akks]

So the area highlighting is needed (and not implemented), not the recusive-relation-highlighting.

[stoecker]

I don't understand that. JOSM does not support multipolygons with relations as members at all and also I fear nobody else does so.

[skyper]

Replying to stoecker:

I don't understand that. JOSM does not support multipolygons with relations as members at all and also I fear nobody else does so.

Are polygons in general supported ? Some areas are only mappable as multipolygons.

It might work for route relations as you can simply use an extra way, but for associatedStreet it is needed as there are buildings with holes and also areas mapped as multipolygon.

[stoecker]

Hmms, somehow this is confusing.

• JOSM supports relations as relation members when creating and managing relations.
• JOSM does not support relations as relation members when using such relations (i.e. when displaying polygons, ...)

Also most other software does not support relations inside relations (maybe routes could be an exception).

So encouraging display of such constructs is not such a good idea - Users will assume it works, but nobody can use it.

[skyper]

Replying to stoecker:

Hmms, somehow this is confusing.

• JOSM supports relations as relation members when creating and managing relations.
• JOSM does not support relations as relation members when using such relations (i.e. when displaying polygons, ...)

Also most other software does not support relations inside relations (maybe routes could be an exception).

It is needed for associatedStreet and Street relations as houses with inside holes cannot be drawn in a different way.

[Don-vip]

In 7555/josm:

fix #10054 - Multipolygons as members not highlighted when relation is selected

[Don-vip]

Ticket #6657 has been marked as a duplicate of this ticket.

[aceman]

It is probably also used in administrative boundary relations where the "subarea" members are relations again.