We have a set of InRoads Cross Sections and have drawn a line in each section to represent a bedrock layer in the ground. Can these graphics be used to create a DTM for a bedrock surface?
You will need need to add the surface to the cross sections first, then you can extract the surface to create the physical DTM with triangulated features. The features will be a transverse line at the stations represented in the cross section set.
You now have a DTM generated from the manually drawn graphics in the cross sections.