[cdavila]

tagtransform.xml file has rule

	<translation>
		<name>add tag to identify mp relations in mapsforge for theme</name>
		<description>add tag to identify mp relations in mapsforge for theme</description>
			<match type="relation" >
				<tag k="type" v="multipolygon"/>
			</match>
		<output>
			<copy-all/>
			<tag k="based_on_rel" v="mp"/>
		</output>
	</translation>

If I understand correctly, this rule only adds based_on_rel=mp tag to type=multipolygon relations. It doesn’t affect way members of those relations. However, Elevate.xml file has rules of type

<rule e="way" k="area|based_on_rel" v="yes|mp">

which are applied to ways, not to relations. What’s the effect of those rules then?

[Tobias]

Relations are not contained in the maps, only the inherited tags on ways that belong to the relation. A multipolygon relation is per definition an area, so those ways don’t contain area=yes. So for those rules to work this tag was created.

Developer of Elevate mapstyle

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JohnPercy

[cdavila]

I must be missing something obvious, sorry. It looks relation tags are not inherited by its way members. I have created a map from attached temp1.osm file with also attached tagmapping-test.xml and rendertheme-test.xml files and only the way with actual based_on_rel=mp tag is rendered

[Tobias]

That’s a question for Christian and/or Emux. Most tags from relations aren’t included, that’s why Christian had to inherit e.g. hiking route relations to ways via scripts.

Developer of Elevate mapstyle

1 user thanked author for this post.

ChristianK

[Author]

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