Contents

require 'time'

# a facade which presents a CSV::row as a v900 waypoint
class V900Waypoint
  def initialize row
    @row = row
  end

  def index
    @row["INDEX"].to_i
  end

  def tag
    @row["TAG"]
  end

  def time
    date = @row["DATE"]
    time = @row["TIME"]
    # make sure it is understood as ZULU time (UTC) and pad time to six numbers 75858 -> 075858
    # http://stackoverflow.com/questions/1543171/how-can-i-output-leading-zeros-in-ruby
    Time.parse("#{date}T" + time.to_s.rjust(6, "0") + "Z") 
  end

  def lon
    value = @row["LONGITUDE E/W"]
    value.match(/(N|E)/) ? value[0..-2].to_f : -1 * value[0..-2].to_f
  end

  def lat
    value = @row["LATITUDE N/S"]
    value.match(/(N|E)/) ? value[0..-2].to_f : -1 * value[0..-2].to_f
  end

  # return an array with lat and lon: [lat, lon]
  def lat_lon
    [lat, lon]
  end

  # ... and since many prefer the other way around ..
  def lon_lat
    [lon, lat]
  end

  def height
    @row["HEIGHT"].to_i
  end

  def speed
    @row["SPEED"].to_i
  end

  def heading
    @row["HEADING"].to_i
  end

  def to_s
    "#{@row["INDEX"]},T,#{@row["DATE"]},#{@row["TIME"]},#{@row["LATITUDE N/S"]},#{@row["LONGITUDE E/W"]},#{@row["HEIGHT"]},#{@row["SPEED"]},#{@row["HEADING"]},0"
  end

end

Version data entries

3 entries across 3 versions & 1 rubygems

Version	Path
columbus3-0.5.1	lib/columbus3/v900track/v900waypoint.rb
columbus3-0.6.0	lib/columbus3/v900track/v900waypoint.rb
columbus3-0.5.0	lib/columbus3/v900track/v900waypoint.rb