parse_log_hdf5.py
Go to the documentation of this file.
00001 #! /usr/bin/python
00002 import roslib
00003 roslib.load_manifest("biotac_log_parser")
00004 import rospy
00005 import rosbag
00006 import numpy
00007 import glob
00008 import sys
00009 import cPickle
00010 from optparse import OptionParser
00011 import itertools
00012 import h5py
00013 from biotac_sensors.msg import BioTacHand
00014 
00015 from collections import defaultdict
00016 
00017 def main():
00018     """ Usage
00019     First log the data using rosbag:
00020     rosbag record /biotac_pub [other topics] -o file_prefix
00021     
00022     Many topics can be recorded, but this file only parses biotac msgs.
00023     The call rosrun rosrun biotac_log_parser parse_log_json.py -i bag_file -o output.hdf5
00024     
00025     Multiple bag files can be specified on the command line using wildcards, but they need to be
00026     enclosed in quotes:
00027     The call rosrun rosrun biotac_log_parser parse_log_json.py -i "*.bag" -o output.hdf5
00028     """    
00029     
00030     parser = OptionParser()
00031     parser.add_option("-i", "--input_file", dest="input_file",
00032                       help="input bag FILEs. Use wildcards for multiple files",
00033                       metavar="FILE", action="store")
00034     parser.add_option("-o", "--output_file", dest="output_file",
00035                       help="output FILE", metavar="FILE")
00036 
00037     (options, _) = parser.parse_args()
00038 
00039     if options.input_file is None:
00040         rospy.logerr("The input bag has to be specified")
00041         sys.exit()
00042     if options.output_file is None:
00043         rospy.logerr("The output file has to be specified")
00044         sys.exit()
00045 
00046 
00047     f = h5py.File(options.output_file, "w")
00048 
00049     gen = (glob.glob(f) for f in options.input_file.split())
00050     traj_num = 0
00051 
00052     for filename in itertools.chain.from_iterable(gen):
00053 
00054         rospy.loginfo("Opening bag %s"% filename)        
00055         bag = rosbag.Bag(filename)
00056 
00057         tdc_data = defaultdict(list)
00058         tac_data = defaultdict(list)
00059         pdc_data = defaultdict(list)
00060         pac_data = defaultdict(list)
00061         electrode_data = defaultdict(list)
00062         time_stamp = []
00063 
00064         num_fingers = 0
00065         for _, msg, _ in bag.read_messages(topics="/biotac_pub"):
00066             isinstance(msg, BioTacHand)            
00067             tdc = []
00068             num_fingers = len(msg.bt_data)
00069             for finger_index in xrange(num_fingers):                
00070                 tdc.append( finger.tdc_data)
00071                 tac.append( finger.tac_data)
00072                 pdc.append( finger.pdc_data)
00073                 pac.append( finger.pac_data)
00074                 electrode.append( finger.electrode_data)
00075                 
00076                 tdc_data[finger_index].append( msg.bt_data[finger_index].tdc_data)
00077                 tac_data[finger_index].append( msg.bt_data[finger_index].tac_data)
00078                 pdc_data[finger_index].append( msg.bt_data[finger_index].pdc_data)
00079                 pac_data[finger_index].append( msg.bt_data[finger_index].pac_data)
00080                 electrode_data[finger_index].append( msg.bt_data[finger_index].electrode_data)
00081                 
00082             time_stamp.append( msg.header.stamp.to_sec())
00083 
00084         
00085         #group_name = "trajectory_" + str(traj_num)        
00086         group_name = filename
00087         f[group_name + "/timestamps"] = time_stamp
00088         for finger_index in xrange(num_fingers):
00089             finger_name = "/finger_" + str(finger_index)
00090             f[group_name + finger_name + "/tdc_data"] = tdc_data[finger_index]
00091             f[group_name + finger_name + "/tac_data"] = tac_data[finger_index]
00092             f[group_name + finger_name + "/pdc_data"] = pdc_data[finger_index]
00093             f[group_name + finger_name + "/pac_data"] = pac_data[finger_index]
00094             f[group_name + finger_name + "/electrode_data"] = electrode_data[finger_index]
00095 
00096         traj_num += 1
00097     f.close()
00098 
00099 
00100 if __name__ == "__main__":
00101     main()


biotac_log_parser
Author(s): Lorenzo Riano
autogenerated on Thu Aug 27 2015 12:35:32