Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 01-04-2013, 16:39   #1
Marine Service Provider

Join Date: Oct 2009
Location: In the U.S.
Boat: FP Tobago 35 [sold]
Posts: 402
My Ship Icon Orientation Heading/COG

On 3.2, the orientation my ship icon displays on OpenCPN seems to be more associated with the COG than Heading.

Is this a change?

So, while at anchor, the icon in OpenCPN is facing the COG as we swing around our anchor, not the heading we are actually faced.

Sometimes I notice it swaps back and forth between the 2 directions (COG and HDG) rapidly, changing the orientation on the screen by 180 degrees....

I am pretty sure with 3.02 the orientation of the boat was always set to the Heading, at least when at anchor.

Anyone know about this?
__________________

__________________
Mark (It's Irie - Sailing Blog)
The Wirie AP+ and The Wirie pro - Long Range Marine WiFi and 2/3/4G Systems
kiltym is offline   Reply With Quote
Old 02-04-2013, 11:05   #2
Registered User
 
hwecken's Avatar

Join Date: Feb 2012
Location: Germany
Boat: HR382
Posts: 110
I discovered the same behavior
__________________

__________________
hwecken is offline   Reply With Quote
Old 02-04-2013, 11:11   #3
Marine Service Provider
 
bdbcat's Avatar

Join Date: Mar 2008
Posts: 4,884
Re: My Ship Icon Orientation Heading/COG

kiltym....

May we see a screenshot of the NMEA debug Window?

The ship's heading is determined from $xxHDG or $xxHDT messages on the NMEA bus, if present. If not present, ships head is derived from GPS sentence, e.g.$GPRMC

Thanks
Dave
__________________
bdbcat is online now   Reply With Quote
Old 02-04-2013, 11:31   #4
Marine Service Provider

Join Date: Oct 2009
Location: In the U.S.
Boat: FP Tobago 35 [sold]
Posts: 402
Re: My Ship Icon Orientation Heading/COG

Dave,

Here is a screen shot showing the boat facing the COG (002), but the heading value is about 180 degrees different (177). As stated, sometimes the ship will do 180 while watching the screen, and return back to COG direction.

Also attached a VDR with some data that behaved this way when watching the screen.

Hopefully this helps. There are HDG sentences in the file.

Let me know if you need more data from me.
Attached Thumbnails
Click image for larger version

Name:	Orientation Incorrect.jpg
Views:	101
Size:	98.0 KB
ID:	58451  
Attached Files
File Type: pdf Orientation.vdr.pdf (16.0 KB, 21 views)
__________________
Mark (It's Irie - Sailing Blog)
The Wirie AP+ and The Wirie pro - Long Range Marine WiFi and 2/3/4G Systems
kiltym is offline   Reply With Quote
Old 02-04-2013, 12:01   #5
Marine Service Provider
 
bdbcat's Avatar

Join Date: Mar 2008
Posts: 4,884
Re: My Ship Icon Orientation Heading/COG

kiltym....

Ooops, you have stumbled onto this bug:
No HDG Data Display In OpenCPN

Sorry
Dave
__________________
bdbcat is online now   Reply With Quote
Old 02-04-2013, 12:14   #6
Marine Service Provider

Join Date: Oct 2009
Location: In the U.S.
Boat: FP Tobago 35 [sold]
Posts: 402
Thanks, and sorry for the duplication.
__________________

__________________
Mark (It's Irie - Sailing Blog)
The Wirie AP+ and The Wirie pro - Long Range Marine WiFi and 2/3/4G Systems
kiltym is offline   Reply With Quote
Reply

Thread Tools
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




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 08:18.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.