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last-minute

v1.0.0

Published

Course Over Ground, Speed Over Ground and Time To Waypoint between now and one minute before

Downloads

10

Vulnerabilities

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Links

Maintainers

kalymnoskalymnos

Keywords

signalk-node-server-plugin

Readme

When a sailboat sails, it doesn't follow a straight line because it's deviated by wind, waves and current. The SOG and COG values provided by the GPS cannot be used to determine the boat's true course and speed, as they are constantly changing.

The purpose of this plugin is to provide precise, stable values for the boat's actual course. To do this, the plugin uses 'navigation.position' at one-minute intervals to make the calculations.

It generates two new values 'navigation.trackBearing' 'navigation.trackSpeed'

Using 'navigation.courseRhumbline.nextPoint.distance' 'navigation.courseRhumbline.bearingTrackTrue'

the plugin also calculates the time to reach the next waypoint 'navigation.timeToWp'