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Connecting to LittleNavMap

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Connecting to LittleNavMap

Postby cporses » Wed Oct 09, 2019 2:13 am

Windows 10 PC
FlightGear 2019.1.1
Nvidia 1050

I run FG and LNM on the same PC, FG on main monitor and LNM on 2nd monitor.
I have so far been unable to get FG to connect to LNM.
I also use P3D and XP11 which connect seamlessly.
I am new to FG and any help would be appreciated
Bob
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Re: Connecting to LittleNavMap

Postby Johan G » Thu Oct 10, 2019 5:32 pm

Would that be Alexander Barthel's Little Navmap? I have never heard of it before,

Unfortunately it looks like it would need some kind of middleware to work with FlightGear. Looking at some readme files in his GitHub repositories it seems like Little Navmap uses a middleware called Little Navconnect to connect with Flight Simulator and Prepar 3D, and a plugin called Little Xpconnect to connect with XPlane.
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Re: Connecting to LittleNavMap

Postby cporses » Mon Oct 14, 2019 6:26 am

Thanks Johan, that is the right program. It has a learning curve, but it is invaluable flying aid. I have Xpconnect and and LittleNavconnect installed. They come default with the program.
As I mentioned, LNM works flawlessly with my other sims. I just would like it to connect to FG.
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Re: Connecting to LittleNavMap

Postby slawekmikula » Mon Oct 14, 2019 9:23 am

Right now LNM does not support connecting to the FlightGear. There is a reference issue on the github: https://github.com/albar965/littlenavmap/issues/138

I was looking at this some time ago and one have to create "connector" to connect FG with LNM like https://github.com/albar965/littlenavconnect and https://github.com/albar965/littlexpconnect. AFAIK one solution is to create this connector to listen to protocol information sent from FG via generic protocol and feed it to LNM via their internal interface. Unfortunately no work has been done on this task.
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Re: Connecting to LittleNavMap

Postby cporses » Tue Oct 15, 2019 7:06 am

I contacted Alexander Barthel directly via his website. He responded very promptly and advised that, at the current time FG and LNM are not compatible. He hopes to rectify this some time in the future, but it will involve a lot of hard work.
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Little Navmap

Postby Robertfm » Tue Oct 15, 2019 6:56 pm

Various articles say this works with FG and yet the manual doesn't mention FG again. Simple question has anyone got this to work.
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Re: Connecting to LittleNavMap

Postby Robertfm » Tue Oct 15, 2019 8:37 pm

I also contacted him, not received a reply yet. Let's hope he sees there is interest. FG misses out on so many things like Logitech add on's. Why do these companies not see there is a market place in FG users
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Re: Little Navmap

Postby Robertfm » Tue Oct 15, 2019 8:39 pm

Thanks not hopeful looking at posts. Why is FG never on any of these add on's. Has someone upset these companies. LNM is open source.
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Re: Little Navmap

Postby WoodSTokk » Tue Oct 15, 2019 11:17 pm

FG can output all datas that LNM needs. The authors of LNM can build a simple interface to receive the data.
The FG developer are not responsible for LNM. Please contact the LNM authors.
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Re: Little Navmap

Postby Robertfm » Wed Oct 16, 2019 10:24 am

WoodSTokk wrote in Tue Oct 15, 2019 11:17 pm:FG can output all datas that LNM needs. The authors of LNM can build a simple interface to receive the data.
The FG developer are not responsible for LNM. Please contact the LNM authors.



Your reply tends to suggest that LNM can do something simple. Their response to other poster says a lot of work was necessary. Now I have no idea which is true. I don't have this type of knowledge. I have read previously that 'we' fell out with Saitek over not allowing FG codes for them to work with. others say Saitek were the problem.

Who knows.
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Re: Little Navmap

Postby Thorsten » Wed Oct 16, 2019 10:28 am

I have read previously that 'we' fell out with Saitek over not allowing FG codes for them to work with


'we' can not do such a thing - the GPL license binds us legally as well as anyone else downloading the code - as soon as we put it on the repository and license it, we can not prevent anyone from using the code - whether we agree with the purpose or not, whether we wish that usage or not.

Your reply tends to suggest that LNM can do something simple.


FG is designed to communicate internals (properties mostly) to 3rd party applications. So yes, this can't be complicated at all.
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Re: Little Navmap

Postby Robertfm » Wed Oct 16, 2019 11:47 am

So Saitek haven't made their products compatible because they choose not to. Why would they turn down potential lucrative market. LNM is open source so can't one of you wizards write a code to make it work. I am genuinely trying to understand.

I am a former Motel owner, suppliers of electronics bent over backwards to facilitate their products into our rooms.
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Re: Little Navmap

Postby wkitty42 » Thu Oct 17, 2019 4:58 pm

first thought on this last statement is: there was $$$ to be had in the motel business... not so much in the FOSS world...

as far as LNM interfacing goes, unless a developer with FG is also using LNM and decides to get involved, it is up to LNM (or someone else with the knowledge) to handle the interfacing... i know a lot of coders that use "really complicated" as an (initial?) excuse... but i also know that one has to know the different systems to do things like this and that's not always easy... LNM may interface with (eg) 10 different simulators... that means they have to know at least some part of those 10 different simulators... ISTR something about a 3rd party middleware tool used between LNM and (some?) simulators... perhaps it is this 3rd party middleware that needs/could be updated? i dunno... i just use Phi's map and don't know why i would need or want LNM at all...
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Re: Little Navmap

Postby Thorsten » Thu Oct 17, 2019 5:03 pm

LNM is open source so can't one of you wizards write a code to make it work.


Lots of people in the team would be able to do that if they wanted I guess. But given that we already have Phi as navigation map / instructor panel / external interface to FG - why would someone spent his time duplicating what it does?

Or is the tool so much better than Phi? If there's functionality missing in Phi, I'm guessing TorstenD would prefer to add it rather than provide a second tool.
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Re: Little Navmap

Postby Johan G » Thu Oct 17, 2019 5:37 pm

Note: I am not a programmer.

wkitty42 wrote in Thu Oct 17, 2019 4:58 pm:ISTR something about a 3rd party middleware tool used between LNM and (some?) simulators... perhaps it is this 3rd party middleware that needs/could be updated?

Yea sort of:
Johan G wrote in Thu Oct 10, 2019 5:32 pm:Looking at some readme files in his GitHub repositories it seems like Little Navmap uses a middleware called Little Navconnect to connect with Flight Simulator and Prepar 3D, and a plugin called Little Xpconnect to connect with XPlane.

Briefly looking into the source code it seems writing that middleware would not be as trivial as a one to one mapping. Also, apart from the relevant middleware repository, his middleware seems to be written using functions spread across two separate additional repositories (one being a library and the other an executable).

See also repositories in https://github.com/albar965/.
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