Im trying to create topographic surveys using georeferenced images from a drone and a DEM/orthomosaic which has been created using Photoscan. I've managed to create contours and label them with elevations but for the purposes of architectural design i need to show height levels at individual points which im hoping to chose myself. Below is a screenshot of my DEM, a screenshot of what i've managed to do so far and then an example of what im looking to achieve. Im fairly new to QGIS so my skills are limited (to say the least!) but can anyone tell me if this is possible using QGIS? I'd like to use open source or freeware software on Mac as i don't earn any money from the topos that i do. Finally i'd like to export the product as a .DXF for import into AutoCAD.