It is a feature that allows the lines under the quarry lines to be selected as the top and bottom line.
Info
By this process, three types of top and bottom lines can be selected.
Option
Description
Make Default Lines Top and Bottom
According to the quarry design direction, the top line of the highest elevation line is the base line of the lowest elevation line. If the top and bottom lines are already defined before, these definitions will be deleted and the new definition specified will be added.
Select Top Line
It allows the selected quarry line to be the top line from the 3D screen.
Select Bottom Line
It allows the selected quarry line to be the bottom line from the 3D screen.
