class NMEAPlus::Message::NMEA::STR
STR
- Tracking Reference
Transmitted prior to a sentence containing velocity-based data to indicate when velocity is measured over-the-ground or relative to the water.
The use of appropriate ground or water-referenced approved sentences such as $–VBW, $–VHW or $–VTG is recommended. @see VBW
@see VHW
@see VTG
Public Instance Methods
Source
# File lib/nmea_plus/message/nmea/str.rb, line 21 def tracking_reference NMEA::NMEAMessage._av_boolean(@fields[1]) ? :ground : :water end
Tracking reference @!parse attr_reader :tracking_reference @return [Symbol]
Source
# File lib/nmea_plus/message/nmea/str.rb, line 29 def tracking_reference_description case tracking_reference when :ground then "Ground reference" when :water then "Water reference" end end
Description of tracking reference @!parse attr_reader :tracking_reference_description @return [String]