Hi Chris, The main branch of QLGT does not take the slope into account. There is a branch by Jan Rheinländer. He is using QLGT to design and calculate electrical power networks. In this branch the elevation is used when calculating the distance. Maybe it's ported to the trunk one day.
However the effect of the elevation is quite negligible on hikes. The moment the slop rises over a few degrees the path will be laid as serpentine. And this will have a much larger influence on the total distance than the slope itself. For the power network it's a bit different. Cables go straight up the hill. The influence of the slope must be taken into account. The same discussion pops up now and then in the usual discussion forums. In one of these discussions someone copied a table: http://www.naviboard.de/vb/showpost.php?p=447955&postcount=2 It's German. The first column is the slope in %, the second the slope in degree, the third is the error in %. The other 3 columns are the same with other values. You can see the usual error is something around 1%. Oliver Gesendet: Dienstag, 09. April 2013 um 21:49 Uhr Von: "Chris Chaffey" <[email protected]> An: "[email protected]" <[email protected]> Betreff: [Qlandkartegt-users] Calculating total distance with elevation data Hi, First of all, I would like to thank you for your effort in producing QLandkarte GT. It is a very handy tool to have, especially when I don't run windows. I was wondering, is it possible to calculate the total distance of a track with respect to elevation? I have a track file that I would like to find total distance hiked when elevation is figured into the equation. I can provide you with the track data if that would help! Thanks, Chris ------------------------------------------------------------------------------ Precog is a next-generation analytics platform capable of advanced analytics on semi-structured data. The platform includes APIs for building apps and a phenomenal toolset for data science. Developers can use our toolset for easy data analysis & visualization. Get a free account! http://www2.precog.com/precogplatform/slashdotnewsletter _______________________________________________ Qlandkartegt-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/qlandkartegt-users
