I have a polylinezm imported from data put together from various sources. One issue I have is that some parts of the line are missing the Z value for the vertices:
To the left, a profile graph showing the Z values along the line, to the right sketch properties showing some vertices with a dummy -9999 Z value.
I've been looking for a way to interpolate the values for the missing vertices, but have not managed to find a way. Anyone got a tip on how to do this?