I cannot get preview/offsets to work for projected elevations, should
they, the thbooks seems to say any map!! So yes, I checked a projected elevation. Both offset and preview work OK, just like plan projections. The difficulty I recalled may have been associated with 'map-level'. In the diagram below, the shaded passage is 'preview below', and the outline is 'offset 100m above'. The definition is like this. map AblutionInceptionElev020Map \ -title "Greenlink System Elevation looking 020 deg" \ -projection [elevation 020 deg] #in front JM-DigiPlusElev020@MiddleEarth [000 100 m] above IK-LuckyCowboyElev020@MiddleEarth [000 100 m] above break JG-TrainElev020@MiddleEarth . break preview below IJ-CarpeDiemElev020@MiddleEarth . endmap and in the th-config the map is invoked directly with select AblutionInceptionElev020Map Hope that helps Bruce
