<html><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:10pt">Greg what you mention about paths is particularly true for various regions were there is almost no road. I see that often in various countries. The link below shows the Manang valley, Nepal, in the himalyas, where we dont see anything before zoom level 14.<br>http://www.openstreetmap.org/#map=10/28.6550/84.0516&layers=H<br><br>For these areas, we can say that this is in a sense the main road. <br><br>We have the same problem with tracks. For this map portion of Afghanistan, you see almost nothing at level 9. You have to wait al level 13 to see some tracks. Then, we can says that we have no perspective. <br>http://www.openstreetmap.org/#map=9/33.1594/65.5101&layers=H<br><br>In this particular case, if there was a hierarchy of roads, it would be less a problem if
the rule that I proposed was followed. See https://wiki.openstreetmap.org/wiki/Highway_Tag_Africa<br><br><div style="color: rgb(0, 0, 0); font-size: 13.3333px; font-family: HelveticaNeue,Helvetica Neue,Helvetica,Arial,Lucida Grande,sans-serif; background-color: transparent; font-style: normal;">An automatic rendering rule will not take care of these particular contexts. Distance could be one rule, or absence of roads.<br></div><div> </div><div><span style="font-style:italic;color:rgb(0, 0, 191);font-weight:bold;">Pierre <br></span><br></div> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 10pt;"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 12pt;"> <div dir="ltr"> <hr size="1"> <font face="Arial" size="2"> <b><span style="font-weight:bold;">De :</span></b> Greg Troxel <gdt@ir.bbn.com><br> <b><span
style="font-weight: bold;">À :</span></b> Martin Koppenhoefer <dieterdreist@gmail.com> <br><b><span style="font-weight: bold;">Cc :</span></b> "dev@openstreetmap.org" <dev@openstreetmap.org> <br> <b><span style="font-weight: bold;">Envoyé le :</span></b> Mardi 7 janvier 2014 19h17<br> <b><span style="font-weight: bold;">Objet :</span></b> Re: [OSM-dev] Renderer issue: highway=service and service=driveway?<br> </font> </div> <div class="y_msg_container"><br><div class="yqt8159835663" id="yqtfd41968"><br clear="none">Martin Koppenhoefer <<a shape="rect" ymailto="mailto:dieterdreist@gmail.com" href="mailto:dieterdreist@gmail.com">dieterdreist@gmail.com</a>> writes:<br clear="none"><br clear="none">> service roads are there, it is only the driveways which are<br clear="none">> (deliberately I guess) rendered only in high zooms.</div><br clear="none"><br clear="none">I think the real issue is that what should be
rendered at highish zoom<br clear="none">is complicated. For a footway that only goes 20m, having it disappear<br clear="none">fairly soon makes sense. But a 3 km footway through a forest is far<br clear="none">more important. Same for driveway, which is not really that inferior to<br clear="none">"service road", but is more important than "parking_aisle".<br clear="none"><br clear="none">So to really do this right, I think some notion of characteristic<br clear="none">distance of the way needs to be calculated, and that used in the<br clear="none">suppression decision.<div class="yqt8159835663" id="yqtfd20989"><br clear="none"></div><br><div class="yqt8159835663" id="yqtfd38473">_______________________________________________<br clear="none">dev mailing list<br clear="none"><a shape="rect" ymailto="mailto:dev@openstreetmap.org" href="mailto:dev@openstreetmap.org">dev@openstreetmap.org</a><br clear="none"><a shape="rect"
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