From kde-edu-devel  Fri Sep 17 18:54:18 2021
From: Alexander Semke <alexander.semke () web ! de>
Date: Fri, 17 Sep 2021 18:54:18 +0000
To: kde-edu-devel
Subject: Re: Curvefit API Requirement
Message-Id: <3148034.aeNJFYEL58 () localhost ! localdomain>
X-MARC-Message: https://marc.info/?l=kde-edu-devel&m=163190485114249

Hi Balu,

we checked the situation again. We have a dependency on the "GNU Scientifi=
c
Library" that is licensed under GPL version 3 [1]. Every project that is u=
sing
GPL code needs to be released under GPL license or under a license accepte=
d by
GNU as compatible with the GPL [2]. So, if you are not releasing your
commercial software under GPL --  and that is the case if I see it correct=
ly
=2D- and you do not plan to do so, you won't be able to use LabPlot+GSL's =
code.

Best Regards,
Alexander

[1] https://www.gnu.org/software/gsl/
[2] https://www.gnu.org/licenses/gpl-faq.html#GPLInProprietarySystem


Am Mittwoch, 15. September 2021, 13:22:58 CEST schrieb Alexander Semke:
> Hi Balu,
>
> thank you for your interest in LabPlot!
>
> I've checked the attached document and also as discussed in the private =
chat
> and on the phone, the requirements are clear and we can fullfil them.
> Though, to make the part of LabPlot's code embeddable in a commercial an=
d
> closed- source application we'll need to adress two points:
>
> 1. make the relevant part of LabPlot's code base available as a shared
> library that can be used in other projects
> 2. clarify the licensing model that would allow to use our code in a clo=
sed-
> source application
>
> For the first point we successfully finalized a POC which we can improve
> upon in the next days to get everything productive. For the second quest=
ion
> we're going to have an internal discussion tonight on our side and decid=
e
> how we can deal with this request. I'll send you another reply soon with
> the updates and we can discuss the next steps.
>
> Best Regards,
> Alexander Semke
>
> On Montag, 13. September 2021 16:54:24 CEST Sathish, Balu wrote:
> > Hi Alexander Semke,
> >
> > I have used your LabPlot application (https://labplot.kde.org/) and fo=
und
> > its capable to solve curvefit according to our equations & parameters.=
 We
> > are using an enterprise application where we can plot graph with our o=
wn
> > controls, We would like to know if you can provide an API of your
> > application for us to generate datapoints based on the curvefits.
> > Requirement are mentioned in the attached document. Also kindly let us
> > know
> > about the licensing details for using this in our application.
> >
> > Thanks
> > Balu Sathish