Aswin Comments - Answer Overflow

About roll and pitch. The angular speed (in 3D) of the boat is calculated from its attitude change between two wind Delta's. Using the height of the sensor this is transformed into a lineair speed (also in 3D). This speed is then substracted from the apparent wind speed.

5 replies

SKSignal K

•Created by barnaclebill on 12/18/2024 in #plugins-and-webapps

barnaclebill - Question for @Aswin, although it...

Leeway is not calculated from the difference between heading and course over ground. It is based on an approximation.

5 replies

SKSignal K

•Created by barnaclebill on 12/18/2024 in #plugins-and-webapps

barnaclebill - Question for @Aswin, although it...

The readme and the plugin config show the formulas and parameters for each approximation.

5 replies

SKSignal K

•Created by barnaclebill on 12/18/2024 in #plugins-and-webapps

barnaclebill - Question for @Aswin, although it...

The code is public: https://github.com/Asw1n/advancedwind

5 replies

SKSignal K

•Created by Aswin on 12/15/2024 in #plugins-and-webapps

Aswin - How to handle duplicate paths? My advan...

I don't know. I have never used them. But reading about them it seems that it is not the plugin that defines source priority.

8 replies

SKSignal K

•Created by Aswin on 12/7/2024 in #plugins-and-webapps

Aswin - I published a new plugin that calculate...

The advancedwind plugin uses the normal environment.wind.speedTrue path to write true wind to. So there is no need to make the path configurable. It is however possible that multiple plugins (derived data and advancedwind) calculate true wind. So, we would need a configurable source id instead.

6 replies

SKSignal K

•Created by Aswin on 12/7/2024 in #plugins-and-webapps

Aswin - I published a new plugin that calculate...

That would be handy when users alo use true wind from the derived data plugin.

6 replies

SKSignal K

•Created by Greg Johnson on 11/17/2024 in #questions

is there a reference key for mast rotation?

I just published a plugin that incorperates mast rotation for calculating true wind. Look for advancedwind plugin. You would still need to add mast rotation to the (meta) data.

4 replies

SKSignal K

•Created by Aswin on 11/29/2024 in #plugins-and-webapps

Aswin - Location of wind sensor. I would like t...

BTW. I am very pleased with the timely respones from both Teppo and Scott

10 replies

SKSignal K

•Created by Aswin on 11/29/2024 in #plugins-and-webapps

Aswin - Location of wind sensor. I would like t...

I will use existing paths for the true wind speeed and direction I calculate.

10 replies

SKSignal K

•Created by Aswin on 11/29/2024 in #plugins-and-webapps

Aswin - Location of wind sensor. I would like t...

I think I am the first, that's why I need to write a new plugin. The reason is that I want windspeed corrected for mast movement. And then normalised to 10 meters above sea level as this is the height polars are based on. But sensor location is not only usefull to GPS and AIS or Wind. Also the location of the depth transdurer is needed (and used) to calculate depth of the water. And I saw that for electrical appliences location is also in use. So it is not that weird a thought.

10 replies

SKSignal K

•Created by Aswin on 11/29/2024 in #plugins-and-webapps

Aswin - Location of wind sensor. I would like t...

So, there is not something like a committee that approves proposals for new paths? Not even a discussion group where things like this are being discussed? I do find the sensor location/position information very inconsistant in

10 replies

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