I'm trying to flatten a small hill using a street. However when I run the align terrain to shapes tool, it just punches a chasm in the raster far below the shape. Changing the maximum distance unfortunately only influences to depth of the chasm but does not prevent it. What's the cause of this?
That seems strange. I just tried to align some terrain to a street shape in 2017.0, and it worked for me.
Does this also happen when trying to align the terrain to polygonal shapes (for example, a rectangle or polygon drawn with the polygon draw tool) instead of street shapes?
Would you mind posting your CityEngine project?