Class: NMEAPlus::Message::AIS::VDMPayload::VDMMsgClassBCSPosition

Inherits:
VDMMsg
  • Object
show all
Defined in:
lib/nmea_plus/message/ais/vdm_payload/vdm_msg_class_b_cs_position.rb

Overview

Base class for “Class B CS Position Report” messages (18 and 19)

See Also:

Direct Known Subclasses

VDMMsg18, VDMMsg19

Instance Attribute Summary collapse

Attributes inherited from VDMMsg

#message_type, #repeat_indicator, #source_mmsi, #source_mmsi_info

Attributes inherited from Payload

#fill_bits, #payload_bitstring

Method Summary

Methods inherited from VDMMsg

#auxiliary_craft?, #get_navigational_status_description, #get_ship_cargo_type_description

Methods inherited from Payload

#_2b_data_string, #_6b_ascii, #_6b_boolean, #_6b_integer, #_6b_integer_scaled, #_6b_integer_scaled_shifted, #_6b_negated_boolean, #_6b_string, #_6b_string_nullterminated, #_6b_unsigned_integer, #_6b_unsigned_integer_scaled, #_6b_unsigned_integer_scaled_shifted, #_8b_data_string, #_access, #_bit_slices, #_get_date_mdhm, #_object_by_name, #initialize, payload_reader

Constructor Details

This class inherits a constructor from NMEAPlus::Message::AIS::VDMPayload::Payload

Instance Attribute Details

#course_over_ground ⇒ Object (readonly)

Returns The field defined by the 12 bits starting at payload bit 112, formatted with the function Payload#_U(10, , ).

Returns:

  • The field defined by the 12 bits starting at payload bit 112, formatted with the function Payload#_U(10, , )



16
 
# File 'lib/nmea_plus/message/ais/vdm_payload/vdm_msg_class_b_cs_position.rb', line 16

payload_reader :course_over_ground, 112, 12, :_U, 10

#latitude ⇒ Object (readonly)

Returns The field defined by the 27 bits starting at payload bit 85, formatted with the function Payload#_I(60 * 10**4, 91, ).

Returns:

  • The field defined by the 27 bits starting at payload bit 85, formatted with the function Payload#_I(60 * 10**4, 91, )



15
 
# File 'lib/nmea_plus/message/ais/vdm_payload/vdm_msg_class_b_cs_position.rb', line 15

payload_reader :latitude, 85, 27, :_I, 60 * 10**4, 91

#longitude ⇒ Object (readonly)

Returns The field defined by the 28 bits starting at payload bit 57, formatted with the function Payload#_I(60 * 10**4, 181, ).

Returns:

  • The field defined by the 28 bits starting at payload bit 57, formatted with the function Payload#_I(60 * 10**4, 181, )



14
 
# File 'lib/nmea_plus/message/ais/vdm_payload/vdm_msg_class_b_cs_position.rb', line 14

payload_reader :longitude, 57, 28, :_I, 60 * 10**4, 181

#position_10m_accuracy? ⇒ Object (readonly)

Returns The field defined by the 1 bits starting at payload bit 56, formatted with the function Payload#_b(, , ).

Returns:

  • The field defined by the 1 bits starting at payload bit 56, formatted with the function Payload#_b(, , )



13
 
# File 'lib/nmea_plus/message/ais/vdm_payload/vdm_msg_class_b_cs_position.rb', line 13

payload_reader :position_10m_accuracy?, 56, 1, :_b

#speed_over_ground ⇒ Object (readonly)

Returns The field defined by the 10 bits starting at payload bit 46, formatted with the function Payload#_U(10, , ).

Returns:

  • The field defined by the 10 bits starting at payload bit 46, formatted with the function Payload#_U(10, , )



12
 
# File 'lib/nmea_plus/message/ais/vdm_payload/vdm_msg_class_b_cs_position.rb', line 12

payload_reader :speed_over_ground, 46, 10, :_U, 10

#time_stamp ⇒ Object (readonly)

Returns The field defined by the 6 bits starting at payload bit 133, formatted with the function Payload#_u(, , ).

Returns:

  • The field defined by the 6 bits starting at payload bit 133, formatted with the function Payload#_u(, , )



18
 
# File 'lib/nmea_plus/message/ais/vdm_payload/vdm_msg_class_b_cs_position.rb', line 18

payload_reader :time_stamp, 133, 6, :_u

#true_heading ⇒ Object (readonly)

Returns The field defined by the 9 bits starting at payload bit 124, formatted with the function Payload#_u(511, , ).

Returns:

  • The field defined by the 9 bits starting at payload bit 124, formatted with the function Payload#_u(511, , )



17
 
# File 'lib/nmea_plus/message/ais/vdm_payload/vdm_msg_class_b_cs_position.rb', line 17

payload_reader :true_heading, 124, 9, :_u, 511