<div dir="ltr">On Sun, Jul 29, 2018 at 1:57 PM, Warin <span dir="ltr"><<a href="mailto:61sundowner@gmail.com" target="_blank">61sundowner@gmail.com</a>></span> wrote:<br><br><div class="gmail_extra"><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div>I too have created relations for tree areas and made 'holes' in them
for various things. Some of those 'holes' may <br></div></blockquote><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div text="#000000" bgcolor="#FFFFFF"> well be 'bare map'.<br></div></blockquote><div>[...] <br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div text="#000000" bgcolor="#FFFFFF">
The problem with the present data in this area is that;<br>
<br>
a) it does not render so 'we' don't know it is there by looking at
the rendered map.<br></div></blockquote><div><br></div><div>That's the only problem. Your points b and c aren't problems (well, not the problem at immediate issue), they're<br>the reasons why problem "a" exists.<br> <br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">I could add a tag - say a "comment=from HOT contribution, tagged
landuse=clearing" .. that should suffice. <br></blockquote><div><br></div><div>You could do that. You could even retain the landuse=clearing tag, since it does no real harm, and comment that<br></div><div>you've retained it in case it has local meaning that isn't documented on the wiki. Or you could do none of those things<br></div><div>and just incorporate the area, with no tags, into a multipolygon on the basis that is clearly what was intended.<br><br></div><div>If you wanted, you could also add a fixme stating that the nature of the clearing needs to be determined, so that<br></div><div>people who look at validators might be tempted to go and look.<br></div><div text="#000000" bgcolor="#FFFFFF"> <br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
In OSM 'we' try to tag what is on the ground, "landuse=clearing" to
me means a lack of something - not what is there, but what is not
there. And that is not something I'd even think about trying to render. <br></blockquote><div><br></div><div>Landuse=clearing in the middle of woodland means "not trees" and can be rendered by using a multipolygon to prevent<br></div><div>trees rendering in that area. It would be nice to know what actually is there, but at least you can show that trees<br></div><div>aren't there. <br></div><br></div><div text="#000000" bgcolor="#FFFFFF">A rambling diversion here, that will rejoin the main trail at the end. In the 1920s Alfred Korzybski came up with<br></div><div text="#000000" bgcolor="#FFFFFF">a self-improvement/therapy program he called "General Semantics" (nothing I say here should be taken as an<br></div><div text="#000000" bgcolor="#FFFFFF">endorsement of it). It had a key point to remind people that our knowledge and understanding of reality is only<br></div><div text="#000000" bgcolor="#FFFFFF">an approximation to reality: "The map is not the territory." OSM is only an approximation to the real world. I try<br></div><div text="#000000" bgcolor="#FFFFFF">to improve that approximation, where possible.<br><br></div><div text="#000000" bgcolor="#FFFFFF">Sea everywhere is an approximation. An island in the sea is a better approximation. Adding woodland to the island<br></div><div text="#000000" bgcolor="#FFFFFF">is a better approximation than that. Poking a hole in the woodland is an even better approximation. Tagging what<br></div><div text="#000000" bgcolor="#FFFFFF">that clearing is (scrub/grass/rock/whatever) is an even better approximation. I don't let the fact that I can't achieve<br></div><div text="#000000" bgcolor="#FFFFFF">perfection stop me from improving what is there. I'd have changed that landuse=clearing to an inner in a<br></div><div text="#000000" bgcolor="#FFFFFF">multipolygon without bothering to say anything here. If the imagery had contradicted the tagging, I'd have left it<br></div><div text="#000000" bgcolor="#FFFFFF">alone, but if the imagery shows "not trees" then map "not trees."<br><br>-- <br></div><div text="#000000" bgcolor="#FFFFFF">Paul<br><br></div></div></div></div>