For a research project I'm working on a sound model. For the sound model I need the breaklines of the landscape. The breaklines describe a change in the behaviour of the surface. I added a picture of an example on where the breaklines are if you create a 3D model of a surface model. However, I'm not able to create the right breaklines in my model. I have arcGIS 10.6, ArcPro and my dear friend Python available as usable software. As input data, I have a LAS dataset, a DEM and a DTM. Any tips / walkthroughs to create the breaklines?