fix：新增例程

基础使用/e5.RflySim3D载具样式切换实验/code/Grasslands.txt

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+2022.09.14-19.44.54, Unit:m or rad, Frame: NED, MapName:3DDisplay
+CMD:CreateVehicle|Rfly***, copterID, vehicleType, PosE[0], PosE[1], PosE[2], AngEuler[0], AngEuler[1], AngEuler[2] 
+CreateVehicle, 1000, 3, 0.66, -0.11, -8.15, 0.00, 0.00, -0.09 
+CreateVehicle, 1001, 30, 1.88, -0.60, -8.23, 0.00, 0.00, -0.24 
+CreateVehicle, 1002, 50, 3.56, 1.65, -8.12, 0.00, 0.00, 0.10 
+RflyMoveVehiclePosAng 1000 1 0.00 2.00 0.00 0.00 0.00

基础使用/e5.RflySim3D载具样式切换实验/code/LoadModelsByTxt.bat

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+@ECHO OFF
+
+REM Run script as administrator
+REM %1 mshta vbscript:CreateObject("Shell.Application").ShellExecute("cmd.exe","/c %~s0 ::","","runas",1)(window.close)&&exit
+
+REM Set the path of the RflySim tools
+if not defined PSP_PATH (
+    SET PSP_PATH=C:\PX4PSP
+    SET PSP_PATH_LINUX=/mnt/c/PX4PSP
+)
+
+REM UE4Path
+cd /d %PSP_PATH%\RflySim3D
+tasklist|find /i "RflySim3D.exe" || start %PSP_PATH%\Rflysim3D\RflySim3D.exe
+
+if not defined PSP_PATH (
+    SET PSP_PATH=D:\PX4PSP
+    SET PSP_PATH_LINUX=/mnt/d/PX4PSP
+)
+cd /d %PSP_PATH%
+cmd.exe /k "echo Python3.8 environment has been set with openCV+pymavlink+numpy+pyulog etc. && echo You can use pip or pip3 command to install other libraries && echo Put your python scripts 'XXX.py' into the folder '%PSP_PATH%\RflySimAPIs\Python38Scripts' && echo Use the command: 'python XXX.py' to run the script with Python && echo For example, try entering 'python ImgCVShow.py' below to use OpenCV to read and show a image && echo You can also use pyulog (see https://github.com/PX4/pyulog) to convert PX4 log file && echo For example, try entering 'ulog2csv log.ulg' to convert ulg file to excel files for MATLAB && cd /d %PSP_PATH%\RflySimAPIs\Python38Scripts && SET PATH=%PSP_PATH%\Python38;%PSP_PATH%\Python38\Scripts;%PATH%"

基础使用/e5.RflySim3D载具样式切换实验/code/LoadModelsByTxt.py

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+import time
+import math
+import sys
+import os
+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') 
+
+   
+time.sleep(2)  
+imPath = os.path.join(sys.path[0],'Grasslands.txt')
+# 此处使用RflyLoad3DFile命令来加载txt格式场景创建文件
+str = 'RflyLoad3DFile ' + imPath 
+print(str)
+ue.sendUE4Cmd(str.encode())
+print(str.encode())
+