>a waypoint-block per line in the surface statement should be >enougth to create manually something and still control it free. >I've attached an idea.
Your sketched idea looks nice. Now for someone who can write the code! I expect it is not a small task to write that and integrate it into Therion. :) Of course there is a work around you could use, with current Therion capabilities. http://therion.speleo.sk/wiki/doku.php/contrib:terrainmodelling#surface_prof iles ie using GPS Visualizer to create a profile or create your own gps trail by walking the route, then creating a surface survey as described on the wiki link above. Now you can draw scraps on the surface survey to create pdf representations and label it as you wish. Maybe a new line type is needed, u:ground that would look similar to wall:sand or wall:clay, to distinguish between 'above ground' and 'below ground'. That would go a small way to working around the problem you mentioned of the background colour filling in the sky. Bruce
