Adam is correct here in that the natural=land tags I was talking about are on single nodes on islands in lakes. All have had a way surrounding them tagged as inner. None of the nodes that I have come across and deleted have had a name tag attached and so didn't seem to be serving any purpose. The name thing is good to know though and so I will be sure to check to see if any other tag is attached to them before deleting.
Sam ----Original Message----- From: Adam Dunn <dunna...@gmail.com> To: Bégin, Daniel <daniel.be...@rncan-nrcan.gc.ca> Cc: Samuel Longiaru <longi...@shaw.ca>, talk-ca <talk-ca@openstreetmap.org> Subject: Re: [Talk-ca] CanVec natural=land tags and untagged ways Date: Wed, 18 May 2011 08:38:48 -0700 The natural=island tag that Daniel is referring to used to be applied to the way of the island. This is the old way of doing things (pre-Canvec 7). I think the natural=land tag that Samuel is referring to is a single node at the centre of the island (Canvec 7). The natural=land node is there for the purpose of retaining toponymy (naming). Many islands don't have names and you can just delete the node, but some of these nodes will have the name of the island, so you should either keep the node or transfer the name of the island over to the island's outer way. For water body relations (not coastal), it is sufficient to have just a closed inner way polygon; you don't need a natural=land tag (or any other tags). I'm not that experienced with coastal tagging, but I think having a way going the correct direction around the island and tagged as natural=coastline is how to tag an island in the ocean/sea. One shouldn't need a natural=land in that case either (in fact, according to the wiki, having natural=land as the sole tag on a costal island is not the correct way of doing things [1]). The two cases where natural=land is required is when the island is only a node (too small to be a way polygon), or when you aren't using relations and need to have an island way polygon (but this is obsoleted by using relations). I thought the tagless "ghost" ways were a byproduct of how JOSM deletes relations, I didn't know it was part of the Canvec export's construction. They can be tossed. Adam
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