TSR2 collaboration

11 Jun 2017 22:23 - 11 Jun 2017 22:27 #34493 by alan
Scott

This morning I copied my TSR2 photo library to my Raspberry pi, which doubles as local web server and secure (SSH authenticated) git server.

Unfortunately the SD car fried in the process, so I have spent the rest of the day setting up a replacement git server on my Synology box.

Then this evening my laptop power supply stopped working. This time it was not the stupid plug which goes into the PC, but the little black box.

My photos are mostly gathered from the net, so it is not wise to make them publicly available. I use them as reference and most of my textures are generated with svg.

I will be at Warton (BAe Heritage) at the beginning of July and will try to come to some agreement with them about copyright. GPL is out of the question, but that does not rule out making a free, but still copyrighted version of my work. An alternative, non Flightgear, form of distribution is needed.

Alan

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12 Jun 2017 07:45 #34494 by enrogue
Hi Alan - apologies if you know all of this already - I'm not a lawyer, and certainly wouldn't like to have to stand up in court regarding the finer points of copyright law, but what follows is my limited understanding of the issues:

There are alternative free licences to the GPL - the different variants of Creative Commons (see creativecommons.org/choose/ to pick a license that suits) come to mind first as alternatives that are commonly used to licence models/fdms/content in the FlightGear world as an alternative to GPL - Dave Culp has all of his licensed CC-BY-NC-SA here www.daveshangar.org/

Some of the CC licenses are considered 'compatible' with the GPL in that you can distribute content licensed with the 2 licenses together - the NC component of the above license is considered incompatible with the GPL, but there are arguments about whether distributing something together constitutes being a 'derivative', so sometimes you will find CC licensed aircraft out there with some GPL content (models for instance) embedded within. This is usually considered bad form, but I have yet to see anyone get sued over it.

I think you've seen the arguments on the main FlightGear forum about licensing - it can get a bit shrill at times, but the rule for FlightGear & the GPL is that content that is hosted in FlightGear repositories and site released as official FlightGear has to be GPL only.

There is one other thing though - as far as I'm aware there is a catch regarding using some of the effects & nasal code released as GPL in FGDATA (the flightgear data repository) in non-GPL aircraft. The core of Nasal is LGPLed, but I think it's safe to assume anything not in the core is GPLed, and I think all of the shader effects code is GPL - as these 2 sections are 'code', it can be considered that using them makes your aircraft a 'derivative', and hence subject to the GPL.

*sigh*

I'm using probably what is considered the loosest definition of derivative in this case, some in the project have a much more encompassing definition of derivative, and therefore prefer all content to be GPLed - there is a whole spectrum of views on this, but as none of us are lawyers (that I'm aware of) it all just ends up being a long running argument on the forums (which I stay well away from).

I think that the authors of the GPLed code, and users in general are ok with a free license being used, and the tendency is to turn a blind eye to small misuse as long as a free licence is in play - where it has all got nasty in the past is where authors have blatantly used a non free license to release their work, and depended on GPLed code in flightgear to do it.

Once again - I am not a lawyer, this is just my observation from reading the arguments on the forum - I'm hoping no one shoots me!

There is of course also Public Domain as a license alternative - somehow I don't see BAe agreeing to that though :)

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12 Jun 2017 11:11 - 12 Jun 2017 11:12 #34500 by ScottBouch

alan wrote: Scott

This morning I copied my TSR2 photo library to my Raspberry pi, which doubles as local web server and secure (SSH authenticated) git server.

Unfortunately the SD car fried in the process, so I have spent the rest of the day setting up a replacement git server on my Synology box.

Then this evening my laptop power supply stopped working. This time it was not the stupid plug which goes into the PC, but the little black box.

Alan


Oh no! I feel your pain! It never rains, but it pours... seems like every computer I've touched recently has some sort of meltdown.. 2x dead servers (one repairable, one for scrap), one misbehaving PC, and one PC just surviving on it's last legs....

After reading about your setup, I had a little look at setting up a git server at home on a spare Pi to keep track of projects (something I've fancied finding a solution for for a while), but decided due to complexity and learning required, it was a job for another day..

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