Class: GoobyTracksLogParser

Inherits:
GoobyBaseObject show all
Defined in:
lib/gooby_track_log_parser.rb

Overview

Gooby = Google APIs + Ruby. Copyright 2009 by Chris Joakim. Gooby is available under GNU General Public License (GPL) license.

Constant Summary

Constants inherited from GoobyBaseObject

GoobyBaseObject::KILOMETERS_PER_MILE, GoobyBaseObject::METERS_PER_FOOT, GoobyBaseObject::MILES_PER_KILOMETER, GoobyBaseObject::SECONDS_PER_HOUR, GoobyBaseObject::UOM_KILOMETERS, GoobyBaseObject::UOM_MILES, GoobyBaseObject::UOM_YARDS, GoobyBaseObject::YARDS_PER_KILOMETER, GoobyBaseObject::YARDS_PER_MILE

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods inherited from GoobyBaseObject

boolean_config_value, config_value, get_config, set_config

Methods included from GoobyIO

#read_file_as_lines, #write_file, #write_lines

Methods included from GoobyIntrospection

#classname, included

Methods included from GoobyEnvironment

#array_param, #boolean_param, #command_line_arg, #float_param, #integer_param, #string_param

Instance Attribute Details

#logs_file ⇒ Object (readonly)

Returns the value of attribute logs_file.



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# File 'lib/gooby_track_log_parser.rb', line 10

def logs_file
  @logs_file
end

#trackpoints ⇒ Object (readonly)

Returns the value of attribute trackpoints.



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# File 'lib/gooby_track_log_parser.rb', line 10

def trackpoints
  @trackpoints
end

Instance Method Details

#parse(logs_file) ⇒ Object 



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# File 'lib/gooby_track_log_parser.rb', line 12

def parse(logs_file)
  @logs_file, @trackpoints = logs_file, []
  @log_lines = IO.readlines(@logs_file, "\r") # funky line ends on this file; not \n
  puts "#{@log_lines.size} lines read from file #{@logs_file}"
  parse_trackpoints
  post_process_trackpoints
  #  @current_trackpoint = GoobyTrackpoint.new
end

#parse_trackpoints ⇒ Object 



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# File 'lib/gooby_track_log_parser.rb', line 21

def parse_trackpoints
  
  # The input file looks like the following:
  # Format: DDD  M/D/Y H:M:S  -5.00 hrs  Datum[116]: WGS 84
  # ID  Date Time Latitude  Longitude Altitude
  # L ACTIVE LOG
  # T 11/16/2008 08:43:06.000 35.21357  -81.29359 262.6
  # T 11/16/2008 08:44:13.000 35.21363  -81.29353 265.0
  # T 11/16/2008 08:44:16.000 35.21366  -81.29349 262.6
  
  sequence = 0
  @log_lines.each { | line |
    tokens = line.split
    if (tokens.size > 5) && (tokens[0] == 'T')
      sequence  = sequence + 1
      mmddccyy  = tokens[1].strip
      time      = tokens[2].strip
      latitude  = tokens[3].strip
      longitude = tokens[4].strip
      altitude  = tokens[5].strip
      tkpt = GoobyTrackpoint.new
      tkpt.set('ActivityId',       '')
      tkpt.set('LapStartTime',     '')
      tkpt.set('LapSeq',           '1')
      tkpt.set('Seq',              sequence)
      tkpt.set('Time',             reformatDateTime(mmddccyy, time))
      tkpt.set('ElapsedTime',      '')
      tkpt.set('LatitudeDegrees',  latitude)
      tkpt.set('LongitudeDegrees', longitude)
      tkpt.set('AltitudeMeters',   altitude.to_f / METERS_PER_FOOT)
      tkpt.set('Distance',         '')
      tkpt.set('Pace',             '')
      tkpt.set('MPH',              '')
      @trackpoints << tkpt                                     
    end
  }
end

#post_process_trackpoints ⇒ Object 



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# File 'lib/gooby_track_log_parser.rb', line 70

def post_process_trackpoints
  # Trackpoint,"","","","",2008-11-16T08:43:06Z,"",35.21357,-81.29359,262.6,0.0,"",""
  # set('ActivityId',       row[1])
  # set('LapStartTime',     row[2])
  # set('LapSeq',           row[3])
  # set('Seq',              row[4])
  # set('Time',             row[5])
  # set('ElapsedTime',      row[6])
  # set('LatitudeDegrees',  row[7])
  # set('LongitudeDegrees', row[8])
  # set('AltitudeMeters',   row[9])
  # set('Distance',         row[10])
  # set('Pace',             row[11])
  # set('MPH',              row[12])  
  
  cumulative_distance, first_tkpt_dttm, prev_tkpt = 0.0, nil, nil     
  if @trackpoints.size > 0
    activity_id = @trackpoints[0].time
  else
    return
  end
  @trackpoints.each { | tkpt |
    tkpt.set('ActivityId',   activity_id)
    tkpt.set('LapStartTime', activity_id)      
    if prev_tkpt
      incremental_distance = tkpt.proximity(prev_tkpt)
      cumulative_distance = cumulative_distance + incremental_distance
      tkpt.set('Distance', cumulative_distance)
    else
      first_tkpt_dttm = tkpt.dttm
      tkpt.set('Distance', 0.0)
    end
    tkpt.compute_elapsed_time(first_tkpt_dttm)
    tkpt.compute_cumulative_pace_and_mph(first_tkpt_dttm)
    prev_tkpt = tkpt
  }       
end

#reformatDate(mmddccyy) ⇒ Object 



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# File 'lib/gooby_track_log_parser.rb', line 59

def reformatDate(mmddccyy)
  date_tokens = mmddccyy.split('/')
  "#{date_tokens[2]}-#{date_tokens[0]}-#{date_tokens[1]}"
end

#reformatDateTime(mmddccyy, time) ⇒ Object

Return a String value in this format: 2007-03-03T15:58:57Z



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# File 'lib/gooby_track_log_parser.rb', line 65

def reformatDateTime(mmddccyy, time)
  time_tokens = time.split('.')
  "#{reformatDate(mmddccyy)}T#{time_tokens[0]}Z"
end

#trackpoints_to_csv ⇒ Object 



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# File 'lib/gooby_track_log_parser.rb', line 108

def trackpoints_to_csv
  lines = []
  @trackpoints.each { | trackpoint | lines << trackpoint.to_csv }
  lines
end