Cruisers Forum
 


Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on Cruisers Forums. Advertise Here
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 11-12-2016, 00:49   #1
Registered User

Join Date: Dec 2016
Posts: 7
opencpn weather routing

This plugin needs a Polar Data file for the boat. Does anyone know where I can get a Polar Data file for a Rival 32?
gipsy541 is offline   Reply With Quote
Old 11-12-2016, 06:40   #2
Registered User

Join Date: Aug 2009
Location: oriental
Boat: crowther trimaran 33
Posts: 4,419
Re: opencpn weather routing

Can you measure your boat speed or enter the best values you can guess?
seandepagnier is offline   Reply With Quote
Old 11-12-2016, 06:48   #3
Registered User

Join Date: Dec 2016
Posts: 7
Re: opencpn weather routing

yes. I have gps and a log/speed instrument.
gipsy541 is offline   Reply With Quote
Old 11-12-2016, 07:10   #4
Registered User

Join Date: Aug 2009
Location: oriental
Boat: crowther trimaran 33
Posts: 4,419
Re: opencpn weather routing

You need wind speed/direction.

The actual algorithm used in the plugin to generate polars from nmea logs is understandably undertested as I don't have wind instruments.

The polar plugin also maybe can produce a polar... but if it works it won't do a good job. It isn't very smart/

Maybe you can post your nmea log (must include speed through water, apparent wind, and apparent wind speed) and should cover a range of wind speeds, and all possible angles to the wind. I can improve the weather routing plugin to better support this type of feature.


Otherwise, for now you need to manually enter the boat speed for each true wind angle and true wind speed.
seandepagnier is offline   Reply With Quote
Reply

Tags
enc, opencpn, weather

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
opencpn weather routing plugin not found usodimare OpenCPN 11 31-12-2019 03:27
OpenCPN Weather Routing akkmi OpenCPN 2 08-08-2016 04:07
Opencpn 4.4.0 - Weather Routing "Grib Plugin Not Supported" TiOlivier OpenCPN 7 22-07-2016 06:22
OpenCPN Weather Routing rtace on the land max59 OpenCPN 4 03-03-2016 04:26
Weather Routing Services GordMay The Library 0 28-09-2005 06:15

Advertise Here


All times are GMT -7. The time now is 20:04.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2024, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.