I have a high resolution digital elevation model (DEM) and a line shapefile displaying a bicycle track. The DEM has 1 meter resolution. The line shape is something like 25 km long.
What I need is a detailed elevation profile of that track, let's say one coordinate every 1 meter.
What I've tried so far is to convert the
shp file to
gpx files and used tools like gpsvisualizer or gpxplot to plot elevation profiles of the track. I used a great circle calculation afterwards to find out the distances between the points.
The distance between single points varies from 3 to 700 meters which makes this plot useless. The main problem is that the conversion of line shape to GPS coordinates only generates the corners of the line but not points in-between somewhere on the edge of the line.
I'm wondering is there an easy way how to use my elevation model (available in AutoCAD files format
adf) to intersect it somehow with the line shape to plot some detailed elevation profile both in numerical (lat, lon & elev. or x, y & z) and graphical ways?
I need this to do further analysis on the given bicycle track.