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signalk-polar-performance

v0.1.1

Published

Sailing polar diagrams with live performance calculations for SignalK. Includes sail wardrobe management, polar tables per sail combination, crossover charts, and real-time performance metrics.

Vulnerabilities

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Links

Git

Maintainers

mendelamsmendelams

Keywords

signalk-node-server-pluginsignalk-webappsignalk-category-instrumentspolarperformancesailingpolar-diagramVMGsail-wardrobe

Readme

signalk-polar-performance

Sailing polar diagrams with live performance calculations for SignalK.

Features

  • Sail wardrobe management — configure mainsail reef states and headsails (genua, gennaker, spinnaker)
  • Polar tables per sail combination — auto-generated from sail wardrobe, each with its own polar data
  • Live performance metrics — polar speed, polar performance %, optimal VMG, target TWA
  • Crossover charts — compare sail combinations to find optimal sail selection per TWA/TWS
  • NMEA replay — replay logged data for polar building and analysis
  • SignalK webapp — integrated into SignalK's admin UI

Installation

From npm (recommended)

In the SignalK admin UI: Appstore → Available → search "polar" → Install

Or via command line:

cd ~/.signalk
npm install signalk-polar-performance

From source

cd ~/.signalk/node_modules
git clone https://github.com/TinkerSailor/signalk-polar-performance.git
cd ~/.signalk
npm install --save file:node_modules/signalk-polar-performance

Configuration

  1. Enable the plugin in SignalK → Server → Plugin Config
  2. Configure your sail wardrobe (mainsail reef stages, headsails)
  3. Sail! Polar data is collected automatically from live wind and speed data

SignalK paths used

| Path | Description | |---|---| | environment.wind.speedTrue | True wind speed | | environment.wind.angleTrueWater | True wind angle | | navigation.speedThroughWater | Boat speed (STW) | | navigation.courseOverGroundTrue | Course over ground |

Data files

Polar data is stored in ~/.signalk/plugin-config-data/signalk-polar-performance/.

Default polar files (genua.json, gennaker.json) are included as starting templates.

License

MIT