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30-05-2012, 01:59
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#1
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Registered User
Join Date: Dec 2009
Location: Perros-Guirec, France
Boat: Jeanneau Sunshine 36
Posts: 999
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Plug-in: Radar AIS View
Works fine: I was just puzzled for a few seconds that I had no display with the Course up option, as opposed to North up, as my boat is at dock, and the COG is not defined.
A note on the display such as 'COG not defined' might help
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09-09-2013, 19:23
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#2
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Registered User
Join Date: Mar 2012
Location: Boston, MA
Boat: 1981 Bristol 32 Sloop
Posts: 18,221
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Re: Plug-in: Radar AIS View
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AIS Tracker
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14-12-2013, 05:22
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#3
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Registered User
Join Date: May 2013
Location: Netherlands
Boat: Matthiesen & Paulsen, 40' Seefahrtkreuzer 50m2, 1935
Posts: 12
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Hi,
I had this myself when docked. I may a fix and commited it to github
All other targets also dissapear, but there is no cog.
It fixed this by making "no cog" equal to 0, which is the same as northup.
I'll see if I can display a no cog message.
I'll put the compiled windows and arm linux plugins on sourceforge in the next few days.
Johan
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15-12-2013, 05:26
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#4
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Registered User
Join Date: Feb 2010
Posts: 619
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Re: Plug-in: Radar AIS View
I put a feature request into flyspray, asking to make the targets appear in the same way in radar view and the main chart. E.g. it would be nice to have green mean the same thing on both, and the icons show similar alignment.
If this is not possible, then I would probably prefer a completely different picture, with different icons (a small circle with the COG vector?) and a different color code. Some AIS plotters just do it this way.
I was not able to upload a full screenshot to flyspray, so I attach it here, I think it shows what I mean.
Thanks a lot,
Piotr
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29-01-2014, 02:03
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#5
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Registered User
Join Date: Mar 2010
Location: France
Boat: 10.50 mètres
Posts: 3,067
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Re: Plug-in: Radar AIS View
hello,
ASUS EeePC 1015. 10'. O 331328.
Trying AIS radar plugin I choice north up and I tick EBL checkbox.
What is exactly this EBL ?
If I understood correctly, choosing up north, this line should show the course followed by the boat user.
Looking at the two screenshots attached below, this is not the case.
Is it a bug in the plugin?
Or is it because OpenCPN is not able to track and update the same screen?
BB.R. Gilletarom.
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29-01-2014, 04:03
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#6
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Registered User
Join Date: Feb 2010
Posts: 619
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Re: Plug-in: Radar AIS View
Quote:
Originally Posted by Gilletarom
What is exactly this EBL ?
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EBL is the Electronic Bearing Line, an arbitrary line that can be persistently set to any angle. The primary use is to see if an approaching target stays on the same bearing over time. Normal radar functionality, usually with 2 independent lines. It should keep the bearing, regardless of screen orientation...
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10-07-2014, 05:58
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#7
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Registered User
Join Date: May 2013
Location: Netherlands
Boat: Matthiesen & Paulsen, 40' Seefahrtkreuzer 50m2, 1935
Posts: 12
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Re: Plug-in: Radar AIS View
Hi Piotr,
I changed the icon for the various ais targets.
Ships and yachts are depicted like in the main program.
However I do not differentiate between the different classes, like tagboat, tanker etc.
Code is available on github
Regards
Johan
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10-07-2014, 14:36
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#8
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Registered User
Join Date: Aug 2009
Location: oriental
Boat: crowther trimaran 33
Posts: 4,455
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Re: Plug-in: Radar AIS View
This is obviously not a bug of the plugin, but makes it not possible to use.
When I try to resize the radar window my x server crashes. Anyone else see this?
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18-07-2014, 10:20
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#9
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Registered User
Join Date: Mar 2012
Location: Boston, MA
Boat: 1981 Bristol 32 Sloop
Posts: 18,221
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Re: Plug-in: Radar AIS View
Sean, In windows I can resize the AIS radar and also the program v3.2.0 without crashing. This is when I am running files in VDR for nmea input. What is puzzling is some of the AIS files I have do not show in the AIS radar, but they show fine ovverlayed on Ocpn charts... I have tried to move the boat etc. but the AIS Radar does not seem to pick the targets up. I have zoomed out thinking it would allow me to see the AIS targets....How do you locate this AIS Radar to get it to see the AIS Targets. On Opencpn Beta File thing there are some files under Nmea. Adriatic-AIS-NoGps-rausch.txt works, but some of the others don't. I've always wondered about that.
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18-07-2014, 12:59
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#10
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Registered User
Join Date: May 2013
Location: Netherlands
Boat: Matthiesen & Paulsen, 40' Seefahrtkreuzer 50m2, 1935
Posts: 12
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Re: Plug-in: Radar AIS View
Do you have a screen shot as an example?
I usually test with live traffic at Flushing. The ais radar inherits the option not to display moored or slow (<0.2knt) targets.
Maybe that feature is causing this behaviour?
Johan
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18-07-2014, 13:17
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#11
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Registered User
Join Date: Mar 2012
Location: Boston, MA
Boat: 1981 Bristol 32 Sloop
Posts: 18,221
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Re: Plug-in: Radar AIS View
Johan,
Try running AIS Radar with the two attached files running in VDR, maybe you can actually see the difference. I can see AIS targets moving in the the AIS chart overlay, but not in the AIS Radar window. I try clicking on Own boat etc and find it on the world chart, and AIS radar sill does not find Own boat for some reason. -
-Maybe the files Nmea is not right?
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18-07-2014, 13:47
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#12
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Registered User
Join Date: Mar 2012
Location: Boston, MA
Boat: 1981 Bristol 32 Sloop
Posts: 18,221
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Re: Plug-in: Radar AIS View
Here are two shots:
First one with VDR running
Adriatic-AIS-rausch.txt
Second one with VDR running
Harmut-Netherlands-Markermeer-Wind-AIS.txt
the AIS is blank. VDR does not seem to be able to handle this 30mb file?
Third with NavmonPC running
Harmut-Netherlands-Markermeer-Wind-AIS.txt
with Virtual Port A = Com14 and Reciving in Opencpn...
Shows the AIS Targets in the radar.
Why the difference?
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18-07-2014, 14:00
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#13
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Registered User
Join Date: Feb 2010
Location: Tierra del Fuego
Boat: Phantom 19
Posts: 6,295
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Re: Plug-in: Radar AIS View
Rick...
The difference is obvious - in one of the streams there is no ownship position info so the plug-in has no idea what to show. The manually placed boat position is not transferred to the plug-ins in any way as it is kind of useless.
Pavel
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19-07-2014, 08:19
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#14
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Registered User
Join Date: May 2013
Location: Netherlands
Boat: Matthiesen & Paulsen, 40' Seefahrtkreuzer 50m2, 1935
Posts: 12
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Re: Plug-in: Radar AIS View
Rick,
Pavel is right. The ais radar view assumes the own ship in the middle of the rings.
Based on the ships own position it calculates the relative positions of the other targets.
So if there is no own position the targets can still be shown on the map based on their absolute positions, but not relative to the own boat.
Johan
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