<div class="gmail_quote">On Thu, Sep 30, 2010 at 2:25 PM, Nathan Edgars II <span dir="ltr"><<a href="mailto:neroute2@gmail.com">neroute2@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<div><div></div><div class="h5">On Thu, Sep 30, 2010 at 2:47 PM, Ian Dees <<a href="mailto:ian.dees@gmail.com">ian.dees@gmail.com</a>> wrote:<br>
> On Thu, Sep 30, 2010 at 1:41 PM, Nathan Edgars II <<a href="mailto:neroute2@gmail.com">neroute2@gmail.com</a>><br>
> wrote:<br>
>><br>
>> I'm importing the USFS data for the Ocala National Forest boundary.<br>
>> There's the actual forest boundary, and there are private inholdings<br>
>> inside the boundary that are not owned by the USFS. For flexibility,<br>
>> I'm making a multipolygon for each. But which one is the "real"<br>
>> boundary? What tags go on each?<br>
><br>
> You're creating separate multipolygons for each of the private inholdings?<br>
> You should be creating one multipolygon with several internal ring ways as<br>
> "inner" members of the multipolygon relation. The whole multipolygon<br>
> relation should have whatever tags you've decided on and the member ways<br>
> should not have any tags.<br>
<br>
</div></div>That's what I'm doing. But I then have two multipolygons: one for the<br>
"forest boundary" and one for this boundary minus the inholdings. The<br>
difference is nontrivial, since some of the inholdings go right up to<br>
the "forest boundary", implying that the forest actually in some way<br>
includes these inholdings.<br>
</blockquote></div><br><div>Are you manufacturing the "forest boundary" outer ring or is it coming from the shapefile?<br><br></div><div>I don't think you should imply that there is a "natural=forest" boundary logically separate from the National Forest's boundary. Assuming you're using USFS's shapefiles, there should be one thing in there: the boundary of the national forest. If there are "holes in the forest" anywhere (including directly on the external border), then they should be inner polygons of a multipolygon.</div>