opentripplanner/OpenTripPlanner — pull request #1613 by oscarfonts (2014-11-13 11:09:54+00:00)
Title: Graph builder: Support DEM files in GeoTIFF format [0.11 branch]

Detects a GeoTIFF file in the input data directory, and uses it as elevation data when building the graph.
The explicit --elevation command line parameter will take prececende over this default behaviour.