location == Geometry Control File (.tgc)

command == Read GIS Code

description == Used to set the code status of a cell (1 = active or 0 = inactive).

wiki link == https://wiki.tuflow.com/TUFLOW_Empty_Files#TUFLOW_Geometry_Control_file_.28TGC.29

manual link == https://docs.tuflow.com/classic-hpc/manual/2026.0/TwoD-Domains-1.html#CellCodes-3