ardupilot/libraries/AP_Scripting/applets/Aerobatics/FixedWing/dual_log.py

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#!/usr/bin/env python
'''
combined two aerobatics logs to generate a new log for showing the combined
path of more than one aircraft
'''
import os
from argparse import ArgumentParser
parser = ArgumentParser(description=__doc__)
parser.add_argument("log1", metavar="LOG1")
parser.add_argument("log2", metavar="LOG2")
parser.add_argument("logout", metavar="LOGOUT")
parser.add_argument("--decimate", type=int, default=1)
args = parser.parse_args()
os.environ['MAVLINK20'] = '1'
from pymavlink import mavutil
mlog1 = mavutil.mavlink_connection(args.log1)
mlog2 = mavutil.mavlink_connection(args.log2)
output = open(args.logout, mode='wb')
types1 = ['ORGN','VEH','PARM','MSG','FMT','FMTU','MULT','MODE','EVT']
types2 = ['VEH']
m1 = None
m2 = None
veh_fmt = None
def write_VEH(m, veh_fmt):
buf = bytearray(m.get_msgbuf())
if veh_fmt is None:
return
buf[2] = veh_fmt
output.write(buf)
m1_count = 0
m2_count = 0
while True:
if m1 is None:
m1 = mlog1.recv_match(type=types1)
if m2 is None:
m2 = mlog2.recv_match(type=types2)
if m1 is not None and m1.get_type() != 'VEH':
output.write(m1.get_msgbuf())
m1 = None
continue
if m2 is not None and m2.get_type() != 'VEH':
continue
if veh_fmt is None and m1 is not None:
veh_fmt = m1.get_msgbuf()[2]
if m1 is None and m2 is None:
break
if m1 is None:
write_VEH(m2, veh_fmt)
m2 = None
continue
if m2 is None:
write_VEH(m1, veh_fmt)
m1 = None
continue
if hasattr(m1,'TSec'):
# old format
t1 = m1.TSec + m1.TUSec*1.0e-6
t2 = m2.TSec + m2.TUSec*1.0e-6
else:
t1 = m1.GWk*7*24*60*60 + m1.GMS*0.001
t2 = m2.GWk*7*24*60*60 + m2.GMS*0.001
if t1 <= t2:
m1_count += 1
if m1_count % args.decimate == 0:
write_VEH(m1, veh_fmt)
m1 = None
else:
m2_count += 1
if m2_count % args.decimate == 0:
write_VEH(m2, veh_fmt)
m2 = None