Class: NMEAPlus::Message::NMEA::HVD

Inherits:

NMEAMessage

• Object
• Base
• NMEAMessage
• NMEAPlus::Message::NMEA::HVD

Defined in:

lib/nmea_plus/message/nmea/hvd.rb

Overview

HVD - Magnetic Variation, Automatic

Magnetic variation, automatically derived (calculated or from a data base)

The use of $–HDG is recommended.

See Also:

• HDG

Direct Known Subclasses

HVM

Instance Attribute Summary

• #magnetic_variation_degrees ⇒ Float readonly

  Magnetic variation, degrees E/W.

Attributes inherited from NMEAMessage

#message_type, #talker

Attributes inherited from Base

#checksum, #data_type, #fields, #interpreted_data_type, #message_number, #next_part, #original, #payload, #prefix, #total_messages

Method Summary

Methods inherited from NMEAMessage

_10_boolean, _av_boolean

Methods inherited from Base

_float, _hex_to_integer, #_highest_contiguous_index, _integer, _interval_hms, _string, _utc_date_time, _utctime_hms, #add_message_part, #all_checksums_ok?, #all_messages_received?, #calculated_checksum, #checksum_ok?, degrees_minutes_to_decimal, field_reader, #highest_contiguous_index, nsew_signed_float

Instance Attribute Details

#magnetic_variation_degrees ⇒ Float (readonly)

Magnetic variation, degrees E/W

Returns:

• (Float)

# File 'lib/nmea_plus/message/nmea/hvd.rb', line 16

def magnetic_variation_degrees
  self.class.nsew_signed_float(@fields[1], @fields[2])
end