Ugh, ghetto

gistfile1.rb

  def potentially_convert_pois_to_coursepoints_if_necessary(track)
    return if track[:pois].nil? or track[:pois].length == 0
    #if we have both POI and coursepoints, we can assume the POI
    #are legitimate, else they would have been parsed as coursepoints
    return if track[:course_points] && tracl[:course_points].length > 0

    eps = 0.0001 #11 feet
    to_keep = []
    track[:pois].each do |poi|
      next if poi[:n].blank? && poi[:d].blank?
      next if poi[:n] =~ /(turn left|right)|(continue on)/i

      closest = nil
      closest_dist = 999999
      track[:track].each do |pt|
        next unless (pt[:x] - poi[:x] < eps) && (pt[:y] - poi[:y] < eps)
        dist = (pt[:x] - poi[:x])**2 + (pt[:y] - poi[:y])**2
        #dist = Trip.haversine_distance(pt[:y], pt[:x], poi[:y], poi[:x])
        if dist < closest_dist
          closest_dist = dist
          closest = pt
        end
      end
      next if closest.nil? or closest < eps
      to_keep << poi
    end
    track[:pois] = to_keep
    return track
  end