location == Geometry Control File (.tgc)

command == Read GIS Variable Z Shape

description == Used to define the final 3D shape of the Zpts at the completion of a breach, or other change in topographic shape, during a simulation.

wiki link == https://wiki.tuflow.com/index.php?title=TUFLOW_Empty_Files#TUFLOW_Geometry_Control_file_.28TGC.29

manual link == https://www.tuflow.com/Download/TUFLOW/Releases/2017-09/TUFLOW%20Manual.2017-09-AC.pdf
manual page == 248