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FG_run.py
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FG_run.py
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#!/usr/bin/env python3
import json
import sys
import os
import xml.etree.ElementTree as ET
import xml.dom.minidom as minidom
import shutil
import subprocess
exparameters = [
"--enable-terrasync",
"--timeofday=noon",
"--disable-sound",
"--disable-random-objects",
"--prop:/sim/rendering/texture-compression=off",
"--prop:/sim/rendering/quality-level=0",
"--prop:/sim/rendering/shaders/quality-level=0",
"--disable-ai-traffic",
"--prop:/sim/ai/enabled=0",
"--prop:/sim/rendering/random-vegetation=0",
"--prop:/sim/rendering/random-buildings=0",
"--disable-specular-highlight",
"--disable-ai-models",
"--disable-clouds",
"--disable-clouds3d",
"--fog-fastest",
"--visibility=2000",
"--disable-distance-attenuation",
"--disable-real-weather-fetch",
"--prop:/sim/rendering/particles=0",
"--prop:/sim/rendering/multi-sample-buffers=1",
"--prop:/sim/rendering/multi-samples=2",
"--prop:/sim/rendering/draw-mask/clouds=false",
"--prop:/sim/rendering/draw-mask/aircraft=true",
"--prop:/sim/rendering/draw-mask/models=true",
"--prop:/sim/rendering/draw-mask/terrain=true",
"--disable-random-vegetation",
"--disable-random-buildings",
"--disable-horizon-effect"
]
if len(sys.argv)!=3:
print('FG_run.py -- bad argument count')
exit(-1)
filename=sys.argv[1]
px4id=int(sys.argv[2])
if not os.path.exists('./'+filename):
print('FG_run.py -- file not found: '+filename)
exit(-1)
#get FG binary to run
fgbin=os.getenv("FG_BINARY")
if fgbin is None:
fgbin='fgfs'
#pick fgroot (fgdata) from flightgear
fgroot=""
fghelp=subprocess.check_output([fgbin, '--version']).decode("utf-8").split('\n');
for s in fghelp:
if s.find("FG_ROOT")>=0:
fgroot=s.split('=')[1]
if not fgroot:
print('fgroot not found.. abort')
exit(-1)
#get FGFS MODEL dir
fgmodelsdir=os.getenv("FG_MODELS_DIR")
if fgmodelsdir is None:
fgmodelsdir='./models'
#get FGFS EXTRA PARAMS
fgargsex=os.getenv("FG_ARGS_EX")
print(fgargsex)
if fgargsex is None:
fgargsex=" ".join(exparameters);
#get FGFS ADD PARAMS
fgargsadd=os.getenv("FG_ARGS_ADD")
print(fgargsadd)
if fgargsadd is None:
fgargsadd="";
protocols=fgroot+'/Protocol'
if not os.access(protocols, os.W_OK):
print('Cannot Write into direcotry: '+ protocols)
exit(-1)
############################ Parse Config ######################################
with open(filename) as json_file:
data = json.load(json_file)
model=data['FgModel']
url=data['Url']
controls=data['Controls']
print(model)
print(url)
for c in controls:
print(c[0]+' '+c[1]+' '+c[2])
############################ Create FG Input Protocol ###########################
propertyList=ET.Element('PropertyList')
generic= ET.SubElement(propertyList, 'generic')
input=ET.SubElement(generic,'input')
binary_mode=ET.SubElement(input,'binary_mode')
binary_mode.text='true'
for c in controls:
chunk=ET.SubElement(input,'chunk')
name=ET.SubElement(chunk,'name')
name.text=c[0]
type=ET.SubElement(chunk,'type')
type.text='double'
node=ET.SubElement(chunk,'node')
node.text=c[1]
rough_string = ET.tostring(propertyList, 'utf-8')
reparsed = minidom.parseString(rough_string)
xmlstring=reparsed.toprettyxml(indent=" ")
with open(protocols+'/PX4toFG.xml','w') as xml_file:
xml_file.write(xmlstring)
############################ Copy FG Output Protocol ############################
shutil.copy('px4bridge.xml',protocols+'/FGtoPX4.xml' )
############################ Run FG #############################################
baseparameters = [
"--aircraft=" + model,
"--fg-aircraft=" + fgmodelsdir,
"--enable-terrasync",
"--timeofday=noon",
"--disable-sound",
"--telnet="+str(15400+px4id),
"--generic=socket,out,100,127.0.0.1,"+str(15200+px4id)+",udp,FGtoPX4",
"--generic=socket,in,100,,"+str(15300+px4id)+",udp,PX4toFG",
"--model-hz=120",
"--disable-random-objects",
"--prop:/sim/rendering/texture-compression=off",
"--prop:/sim/rendering/quality-level=0",
"--prop:/sim/rendering/shaders/quality-level=0",
"--disable-ai-traffic",
"--prop:/sim/ai/enabled=0",
"--prop:/sim/rendering/random-vegetation=0",
"--prop:/sim/rendering/random-buildings=0",
"--disable-specular-highlight",
"--disable-ai-models",
"--disable-clouds",
"--disable-clouds3d",
"--fog-fastest",
"--visibility=2000",
"--model-hz=500",
"--disable-distance-attenuation",
"--disable-real-weather-fetch",
"--prop:/sim/rendering/particles=0",
"--prop:/sim/rendering/multi-sample-buffers=1",
"--prop:/sim/rendering/multi-samples=2",
"--prop:/sim/rendering/draw-mask/clouds=false",
"--prop:/sim/rendering/draw-mask/aircraft=true",
"--prop:/sim/rendering/draw-mask/models=true",
"--prop:/sim/rendering/draw-mask/terrain=true",
"--disable-random-vegetation",
"--disable-random-buildings",
"--disable-horizon-effect"
]
#with FG output
commnad=fgbin+" "+" ".join(baseparameters)+" "+fgargsex+" "+fgargsadd+" & echo $! > /tmp/px4fgfspid_"+str(px4id)
print(commnad)
os.system(commnad)