Anchor Watch

[deepthought]

I have 2 questions related to Anchor Watch.



1. Is there some way I can run a script/program or call something if the anchor drags?


2. I see in the opencpn.conf which contains "AnchorWatch1GUID=" a guid when a watch is set and nothing when not set. But it does not change until you quiet OpenCPN is there somewhere else I can check for the Anchor Watch if it is set or not?


TIA

[Hakan]

TIA.
Check the plugin Watchdog and the "Command" function for a Anchor alarm->"Alarm action"

[deepthought]

@Hakan: thanks but would be nice if I can send the info to the script this seems to just let me run a program is there way to send some variable with it or something?



I am trying to get the anchor locate and if its set to another app.



Thanks

[Hakan]

Use the command function as you like. To start a script of yours for example. Use A RPi and any GPIO and trig a big horn or whatever you need?

BTW: What's wrong with OCPN and available plugins?

[deepthought]

@Hakan: Its not I need to trigger a script as much as I would like the anchor drop location. Do you know if there is some way I can get the gps location of the actual anchor watch somehow?



There is nothing wrong with OCPN and or its plugins. I am trying to get this info to somewhere else.


Thanks

[nohal]

You currently can't get this information. It would be an easy code addition (~one line) that would send a JSON message to the plugin API with the GUID of the waypoint used, which you then could retrieve in eg. JavaScript plugin and do whatever you want...

[deepthought]

Would you care to share a patch or the line to add where?



Thanks

Originally Posted by nohal

You currently can't get this information. It would be an easy code addition (~one line) that would send a JSON message to the plugin API with the GUID of the waypoint used, which you then could retrieve in eg. JavaScript plugin and do whatever you want...

[nohal]

I have prepared a pull request implementing this, https://github.com/OpenCPN/OpenCPN/pull/3049/files

[deepthought]

@nohal: thank you very much

[nohal]

BTW, the patch has already been merged, so you can now simply use the CI builds of OpenCPN from https://cloudsmith.io/~david-registe...able/packages/

[ray122]

I had the same question but I don't understand the answers here ;-)
Is there a way to execute a command / script from openCPN when a anchor alarm is raised?

(Alternatively, is there a way to set up a signal K notification when the anchor alarm is raised?)

[rgleason]

Nice that Pavel and Hakan responded to you in various ways, when a review of the features in Watchdog would have answered your persistent question.

Perhaps reading the watchdog manual would inform you about the wealth of functions in watchdog? User Manual Plugins

In particular, notice the Command checkbox and the fields associated with that. If you want particular improvements (RFE requests for enhancement) please post in the Issues section of the particular plugin.

[ray122]

Thanks! Maybe my post was not clear, after hours searching the Internet. The question concerned the internal OpenCPN Anchor watch, not the Watchdog. I'm aware of the command feature of the Watchdog pluggin. But I don't think the watchdog anchor watch is practial to use. Because it takes the boat position when you create the alarm. The Boat position is not the anchor position, and you need to make a manual calculation to center the watch circle. OpenCPN internal anchor watch doesn't do it either, but with the Ruler tool you can pretty much adjust the actual position of the anchor

I'm open that someone explains me how s/he actually use Watchdog in real life (I'm single handled), especiallly the instruction #1 of the documentation (very good btw):
"1 - Set the Anchor Alert at the same time and place as the Anchor!"

I'll take your advice from another post and submit an enhancement request in github. Thanks and sorry for the bothering

[rgleason]

Originally Posted by ray122

Thanks! Maybe my post was not clear, after hours searching the Internet. The question concerned the internal OpenCPN Anchor watch, not the Watchdog. I'm aware of the command feature of the Watchdog pluggin. But I don't think the watchdog anchor watch is practial to use. Because it takes the boat position when you create the alarm. The Boat position is not the anchor position, and you need to make a manual calculation to center the watch circle. OpenCPN internal anchor watch doesn't do it either, but with the Ruler tool you can pretty much adjust the actual position of the anchor

I'm open that someone explains me how s/he actually use Watchdog in real life (I'm single handled), especiallly the instruction #1 of the documentation (very good btw):
"1 - Set the Anchor Alert at the same time and place as the Anchor!"

I'll take your advice from another post and submit an enhancement request in github. Thanks and sorry for the bothering

Many thanks Ray, for your persistence and post in github watchdog Issues. It is very clear and concise. The sketch is perfect. Now we just need to find the programming resources to get it done. This will be an excellent enhancement to the alarm.