Class: Natour::GPXFile

Inherits:
GPSTrack show all
Defined in:
lib/natour/gpx_file.rb

Constant Summary collapse

GPX_XMLNS = 
{
  'xmlns' => 'http://www.topografix.com/GPX/1/1',
  'xmlns:gpxtrkx' => 'http://www.garmin.com/xmlschemas/TrackStatsExtension/v1'
}.freeze

Instance Attribute Summary collapse

Attributes inherited from GPSTrack

#ascent, #date, #descent, #distance, #duration, #end_point, #path, #start_point

Instance Method Summary collapse

Methods inherited from GPSTrack

load_file, #round_effective_km!, #save_gpx

Constructor Details

#initialize(filename) ⇒ GPXFile

Returns a new instance of GPXFile.



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# File 'lib/natour/gpx_file.rb', line 14

def initialize(filename)
  @doc = Nokogiri.XML(File.read(filename, mode: 'r:utf-8'))

  @types = []
  @types << :waypoint if @doc.at('/xmlns:gpx/xmlns:wpt', GPX_XMLNS)
  @types << :route if @doc.at('/xmlns:gpx/xmlns:rte', GPX_XMLNS)
  @types << :track if @doc.at('/xmlns:gpx/xmlns:trk', GPX_XMLNS)

  stats = @doc.at('/xmlns:gpx/xmlns:trk/xmlns:extensions/gpxtrkx:TrackStatsExtension', GPX_XMLNS)
  if stats
    ascent = stats.at('./gpxtrkx:Ascent', GPX_XMLNS).text.to_i
    descent = stats.at('./gpxtrkx:Descent', GPX_XMLNS).text.to_i
    distance = stats.at('./gpxtrkx:Distance', GPX_XMLNS).text.to_i
    duration = Duration.new(stats.at('./gpxtrkx:TotalElapsedTime', GPX_XMLNS).text.to_i)
  end

  start_point = to_track_point(@doc.at('/xmlns:gpx/xmlns:trk/xmlns:trkseg[1]/xmlns:trkpt[1]', GPX_XMLNS))
  end_point = to_track_point(@doc.at('/xmlns:gpx/xmlns:trk/xmlns:trkseg[last()]/xmlns:trkpt[last()]', GPX_XMLNS))

  super(filename, start_point&.time&.to_date, ascent, descent, distance, duration, start_point, end_point)
end

Instance Attribute Details

#types ⇒ Object (readonly)

Returns the value of attribute types.



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# File 'lib/natour/gpx_file.rb', line 12

def types
  @types
end

Instance Method Details

#to_gpx ⇒ Object 



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# File 'lib/natour/gpx_file.rb', line 36

def to_gpx
  @doc.to_xml
end