On Wed, 23 Apr 2008, Andy Robinson (blackadder) wrote: > For a climbing route it's normally the distance of assent that is of > interest is it not and I guess for most traditional climbing routes this is > known? Much easier to state the length of the route than the top and bottom > elevations? Accepted that you might want to converge on an elevation for the > start of the route as accuracy of the position is improved with time.
Yes. There is a climbing:length tag in my proposal, but this is not the same as top_elevation-bottom_elevation since the elevations are purely a vertical component whereas the length is the total length from top to bottom of the (possibly not entirely vertical) route. For example, some multi-pitch routes have scrambles in the middle, but would still be considered a single route so the length would include the scrambles (which are nowhere near vertical). At the moment I don't think we have enough data to be able to render a 3D map. Adding SRTM3 data wouldn't help a great deal for this purpose because it isn't nearly high enough resolution to represent a cliff properly. Whilst having good elevation data would be a nice thing to have, the equipment is a bit too specialist for now. Does anyone happen to know how well Gallileo is expected to perform in terms of vertical accuracy? - Steve xmpp:[EMAIL PROTECTED] sip:[EMAIL PROTECTED] http://www.nexusuk.org/ Servatis a periculum, servatis a maleficum - Whisper, Evanescence _______________________________________________ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/talk