import UE4CtrlAPI as UE4CtrlAPI

#Create a new MAVLink communication instance, UDP sending port (CopterSim’s receving port) is 20100
ue = UE4CtrlAPI.UE4CtrlAPI()

# sendUE4Cmd: RflySim3D API to modify scene display style
# Format: ue.sendUE4Cmd(cmd,windowID=-1), where cmd is a command string, windowID is the received window number (assuming multiple RflySim3D windows are opened at the same time), windowID =-1 means sent to all windows
# Augument: RflyChangeMapbyName command means to switch the map (scene), the following string is the map name, here will switch all open windows to the grass map
ue.sendUE4Cmd('RflyChangeMapbyName Grasslands')