wlan_pioneer/src/export-data.py

34 lines
910 B
Python
Executable file

#!/usr/bin/python2
import rosbag
import sys
import os
from wlan_pioneer.msg import WlanSignalMsg
from geometry_msgs.msg import Point
import datetime
inFileName = os.path.abspath(sys.argv[1])
outFileName = os.path.join(os.path.dirname(inFileName), os.path.basename(inFileName).split(".")[0] + ".csv")
count = 0
pos = Point()
bag = rosbag.Bag(inFileName)
outFile = open(outFileName, "w")
outFile.write("SecsSinceEpoch;xPos;yPos;level2G4;level5G\n")
for topic, msg, timestamp in bag.read_messages(topics=['/wlan_signal', '/pose']):
if (topic == "/pose"):
pos = msg.pose.pose.position
if (topic == "/wlan_signal"):
timeStr = datetime.datetime.fromtimestamp(msg.timestamp.secs).isoformat()
outFile.write("%s;%f;%f;%d;%d\n"
% (timeStr, pos.x, pos.y, msg.level_2G4, msg.level_5G))
count += 1
print "%d rows written to %s" % (count, outFileName)
outFile.close()
bag.close()