Class: NMEAPlus::Message::AIS::VDMPayload::VDMMsg8
- Defined in:
- lib/nmea_plus/message/ais/vdm_payload/vdm_msg8.rb
Overview
AIS Type 8: Binary Broadcast Message
Instance Attribute Summary collapse
-
#designated_area_code ⇒ Object
readonly
The field defined by the 10 bits starting at payload bit 40, formatted with the function Payload#_u(, , ).
-
#dp ⇒ VDMMsg8DynamicPayload
readonly
Dynamic Payload containing fields for the appropriate message 8 subtype.
-
#functional_id ⇒ Object
readonly
The field defined by the 6 bits starting at payload bit 50, formatted with the function Payload#_u(, , ).
Attributes inherited from VDMMsg
#message_type, #repeat_indicator, #source_mmsi, #source_mmsi_info
Attributes inherited from Payload
#fill_bits, #payload_bitstring
Instance Method Summary collapse
-
#_dynamic_payload_container ⇒ Object
Dynamically calculate what message subtype to use which depends on the designated_area_code and functional_id.
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
#designated_area_code ⇒ Object (readonly)
Returns The field defined by the 10 bits starting at payload bit 40, formatted with the function Payload#_u(, , ).
16 |
# File 'lib/nmea_plus/message/ais/vdm_payload/vdm_msg8.rb', line 16 payload_reader :designated_area_code, 40, 10, :_u |
#dp ⇒ VDMMsg8DynamicPayload (readonly)
Dynamic Payload containing fields for the appropriate message 8 subtype. This is a factory method for the container class
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# File 'lib/nmea_plus/message/ais/vdm_payload/vdm_msg8.rb', line 23 def dp ret = _dynamic_payload_container ret.payload_bitstring = payload_bitstring ret.fill_bits = fill_bits ret end |
#functional_id ⇒ Object (readonly)
Returns The field defined by the 6 bits starting at payload bit 50, formatted with the function Payload#_u(, , ).
17 |
# File 'lib/nmea_plus/message/ais/vdm_payload/vdm_msg8.rb', line 17 payload_reader :functional_id, 50, 6, :_u |
Instance Method Details
#_dynamic_payload_container ⇒ Object
Dynamically calculate what message subtype to use which depends on the designated_area_code and functional_id
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# File 'lib/nmea_plus/message/ais/vdm_payload/vdm_msg8.rb', line 33 def _dynamic_payload_container class_identifier = "NMEAPlus::Message::AIS::VDMPayload::VDMMsg8d#{designated_area_code}f#{functional_id}" ret = _object_by_name(class_identifier) return ret unless ret.nil? # 316 / 366 if designated_area_code == 316 class_identifier = "NMEAPlus::Message::AIS::VDMPayload::VDMMsg8d366f#{functional_id}" ret = _object_by_name(class_identifier) return ret unless ret.nil? end _object_by_name("NMEAPlus::Message::AIS::VDMPayload::VDMMsg8Undefined") # generic end |