Changelog History
-
v1.3.0 Changes
August 26, 2020๐ New features
๐ท TAG Block struct
type TagBlock struct { Timeint64// TypeUnixTime unix timestamp (unit is likely to be s, but might be ms, YMMV), parameter: -cRelativeTime int64// TypeRelativeTime relative time, parameter: -rDestinationstring // TypeDestinationID destination identification 15 char max, parameter: -dGroupingstring // TypeGrouping sentence grouping, parameter: -gLineCountint64// TypeLineCount line count, parameter: -nSourcestring // TypeSourceID source identification 15 char max, parameter: -sTextstring // TypeTextString valid character string, parameter -t}
Ref.: https://github.com/adrianmo/go-nmea/blob/master/tagblock.go#L10
Code example
NMEA 4.10 TAG Block values can be accessed via the message's
TagBlock
struct:package mainimport ( "fmt""log""time""github.com/adrianmo/go-nmea")func main() { sentence := "\\s:Satelite\_1,c:1553390539\*62\\!AIVDM,1,1,,A,[email protected]`K6`nV00Sv,0\*52"s, err := nmea.Parse(sentence) if err != nil { log.Fatal(err) } parsed := s.(nmea.VDMVDO) fmt.Printf("TAG Block timestamp: %v\n", time.Unix(parsed.TagBlock.Time, 0)) fmt.Printf("TAG Block source: %v\n", parsed.TagBlock.Source) }
Output (locale/time zone dependent):
$ go run main/main.go TAG Block timestamp: 2019-03-24 14:22:19 +1300 NZDT TAG Block source: Satelite_1
Thank you!
-
v1.2.0 Changes
May 11, 2020๐ Deprecation
๐ Message parsing is now talker-agnostic, i.e., it is based on the sentence data type only. For a sentence like
$XXYYY,220516,A,23,5133.82,W*42
, whereXX
is the talker andYYY
is the sentence data type, the parser will only account for theYYY
data type, which is what defines the structure and format of the sentence.In your code, given a sentence like the following:
sentence := "$GPRMC,220516,A,5133.82,N,00042.24,W,173.8,231.8,130694,004.2,W\*70"
๐ Instead of using the old, deprecated prefixes (e.g.
nmea.PrefixGPRMC
) that included the talked ID and the data type:s, \_ := nmea.Parse(sentence)// Deprecated nmea.PrefixGPRMC, use nmea.TypeRMC insteadif s.Prefix() == nmea.PrefixGPRMC { m := s.(nmea.GPRMC) fmt.Printf("Validity: %s\n", m.Validity) ... }
๐ Use the
DataType()
sentence method to determine the parsed sentence data type and then cast it to the right type:s, \_ := nmea.Parse(sentence)if s.DataType() == nmea.TypeRMC { m := s.(nmea.RMC) fmt.Printf("Validity: %s\n", m.Validity) ... }
๐ New features
- ๐ Ability to register custom message parsers to allow parsing of sentence types that are currently not supported by the library [link].
๐ New sentences
- GNS - Combined GPS fix for GPS, Glonass, Galileo, and BeiDou
- THS - Actual vessel heading in degrees True and status
- ๐ฐ VDM/VDO - Encapsulated binary payload
- WPL - Waypoint location
- RTE - Route
- ๐ VHW - Water Speed and Heading
- DPT - Depth of Water
- DBS - Depth Below Surface
- DBT - Depth below transducer
Thank you!
@icholy @bmurray @sthorshaug @BertoldVdb @kvartborg @krasi-georgiev @krawczyk87 @yavosh
-
v1.1.0 Changes
June 20, 2018๐ New Sentences
- GPHDT - Actual vessel heading in degrees True (#34)
-
v1.0.0 Changes
April 16, 2018๐ Supported sentences
- GPRMC - Recommended Minimum Specific GPS/Transit data
- GNRMC - Recommended Minimum Specific GNSS data
- GPGGA - GPS Positioning System Fix Data
- GNGGA - GNSS Positioning System Fix Data
- GPGSA - GPS DOP and active satellites
- GPGSV - GPS Satellites in view
- GLGSV - GLONASS Satellites in view
- GPGLL - Geographic Position, Latitude / Longitude and time
- GPVTG - Track Made Good and Ground Speed
- GPZDA - Date & time data
- PGRME - Estimated Position Error (Garmin proprietary sentence)