Re: Comments regarding laszip_2.2.0-1_amd64.changes
On 03/17/2018 05:32 PM, Martin Landa wrote: > Hi, > > 2018-03-17 17:25 GMT+01:00 Sebastiaan Couwenberg : >> On 03/17/2018 05:21 PM, Sebastiaan Couwenberg wrote: >>> Don't upload laszip to UbuntuGIS or any other PPA, due to the FastAC >>> code not allowing modification the laszip package is unredistributable >>> because it violets the terms of the LGPL. >> >> I see that you uploaded it to ubuntugis-experimental already, so I >> deleted that package since we're not allowed to distribute the package >> in it current form. > > sorry, I didn't know about that. Thanks for pointing this out! For some more background, see: https://trac.osgeo.org/osgeolive/ticket/1341 >>> If you want to support LAZ in PDAL for GRASS getting laz-perf packages >>> is a much better option: > > GRASS still relies on liblas. There are new GRASS modules based on > PGAL, but not really finished. libLAS is not actively developed any more, it's highly unlike to ever see another release. PDAL is the way forward for LAS support in OSGeo project. And thanks for Howard, there is now an alternative to LASzip which doesn't have license issues. The LASzip saga has been a very disappointing experience, Martin talks big about how LAZ is better dan ESRI's format, but did do any work to resolve the license issues in LASzip which was the only open source implementation. I know that the PDAL support in GRASS is still in the early stages, I've never been able to successfully build the grass Debian package with PDAL support. I'd love to be able to do that, though, and not have to disable it when PDAL publishes a new release (as it took quite a while for GRASS to support PDAL 1.6.0). Kind Regards, Bas ___ Pkg-grass-devel mailing list Pkg-grass-devel@lists.alioth.debian.org http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/pkg-grass-devel
Re: Comments regarding laszip_2.2.0-1_amd64.changes
Hi, 2018-03-17 17:25 GMT+01:00 Sebastiaan Couwenberg : > On 03/17/2018 05:21 PM, Sebastiaan Couwenberg wrote: >> Don't upload laszip to UbuntuGIS or any other PPA, due to the FastAC >> code not allowing modification the laszip package is unredistributable >> because it violets the terms of the LGPL. > > I see that you uploaded it to ubuntugis-experimental already, so I > deleted that package since we're not allowed to distribute the package > in it current form. sorry, I didn't know about that. Thanks for pointing this out! >> If you want to support LAZ in PDAL for GRASS getting laz-perf packages >> is a much better option: GRASS still relies on liblas. There are new GRASS modules based on PGAL, but not really finished. Martin -- Martin Landa http://geo.fsv.cvut.cz/gwiki/Landa http://gismentors.cz/mentors/landa ___ Pkg-grass-devel mailing list Pkg-grass-devel@lists.alioth.debian.org http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/pkg-grass-devel
Re: Comments regarding laszip_2.2.0-1_amd64.changes
On 03/17/2018 05:21 PM, Sebastiaan Couwenberg wrote: > Don't upload laszip to UbuntuGIS or any other PPA, due to the FastAC > code not allowing modification the laszip package is unredistributable > because it violets the terms of the LGPL. I see that you uploaded it to ubuntugis-experimental already, so I deleted that package since we're not allowed to distribute the package in it current form. > If you want to support LAZ in PDAL for GRASS getting laz-perf packages > is a much better option: > > https://github.com/hobu/laz-perf/ > > On 08/21/2014 10:17 PM, Thorsten Alteholz wrote: >> some files contain the following remark: >> // Permission to copy and redistribute this code is hereby granted, >> provided - >> // that this warning and copyright notices are not removed or altered. >> - >> >> This does not allow modification. Can you please explain why this code can >> be >> licensed under LGPL? Kind Regards, Bas ___ Pkg-grass-devel mailing list Pkg-grass-devel@lists.alioth.debian.org http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/pkg-grass-devel
Re: Comments regarding laszip_2.2.0-1_amd64.changes
Hi Martin, Don't upload laszip to UbuntuGIS or any other PPA, due to the FastAC code not allowing modification the laszip package is unredistributable because it violets the terms of the LGPL. If you want to support LAZ in PDAL for GRASS getting laz-perf packages is a much better option: https://github.com/hobu/laz-perf/ On 08/21/2014 10:17 PM, Thorsten Alteholz wrote: > some files contain the following remark: > // Permission to copy and redistribute this code is hereby granted, > provided - > // that this warning and copyright notices are not removed or altered. > - > > This does not allow modification. Can you please explain why this code can be > licensed under LGPL? Kind Regards, Bas ___ Pkg-grass-devel mailing list Pkg-grass-devel@lists.alioth.debian.org http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/pkg-grass-devel
Re: Comments regarding laszip_2.2.0-1_amd64.changes
I've been in contact with the FastAC authors, and Amir Said has replied indicating that they would like their code to be used in Free Software projects: On 08/22/2014 01:51 AM, Amir Said wrote: > Hi, > > Our main objective was to avoid people modifying the code, > redistributing it, and we receiving complaints that "our" code wasn't > working... > > I'll be glad to see it used in Free Software projects..., and a link > to our book > > http://www.cambridge.org/us/academic/subjects/engineering/communications-and-signal-processing/digital-signal-compression-principles-and-practice > > would be nice, but not essential ;-) > > What do we need to do? > > Amir I've recommended that they publish updated FastAC code in which the license is changed to the 2-clause BSD license which is closest to the current license. Or the BSD-3-Clause or its Clear variant, for broadest compatibility for use in Free Software projects. And explained that using GPL2+ would prevent the use in BSD licensed projects. I think it's safe to reject the laszip package in its current form. And I'll work with the FastAC and LASzip developers to get the relicensed FastAC code included in a new LASzip release which I'll then resubmit for ftp-master review in the NEW queue. Kind Regards, Bas -- GPG Key ID: 4096R/E88D4AF1 Fingerprint: 8182 DE41 7056 408D 6146 50D1 6750 F10A E88D 4AF1 ___ Pkg-grass-devel mailing list Pkg-grass-devel@lists.alioth.debian.org http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/pkg-grass-devel
Re: Comments regarding laszip_2.2.0-1_amd64.changes
On 08/21/2014 10:17 PM, Thorsten Alteholz wrote: > Dear Maintainer, > > some files contain the following remark: > // Permission to copy and redistribute this code is hereby granted, > provided - > // that this warning and copyright notices are not removed or altered. > - > > This does not allow modification. Can you please explain why this code can be > licensed under LGPL? Good catch. I assume this was an oversight from the upstream developers. The FastAC header was added after the code was included in LASzip maybe because they were unaware of these limitations before. https://github.com/LASzip/LASzip/commit/479718f4290aef0a20eece545657e5ae38feba1c I can theorize that the the LASzip developers thought that because the LGPL intents to "exercise the right to control the distribution of derivative or collective works based on the Library", and not to "claim rights or contest your rights to work written entirely by you", that including the FastAC code complies with the license. > Thanks! > Thorsten Kind Regards, Bas -- GPG Key ID: 4096R/E88D4AF1 Fingerprint: 8182 DE41 7056 408D 6146 50D1 6750 F10A E88D 4AF1 ___ Pkg-grass-devel mailing list Pkg-grass-devel@lists.alioth.debian.org http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/pkg-grass-devel
Comments regarding laszip_2.2.0-1_amd64.changes
Dear Maintainer, some files contain the following remark: // Permission to copy and redistribute this code is hereby granted, provided - // that this warning and copyright notices are not removed or altered. - This does not allow modification. Can you please explain why this code can be licensed under LGPL? Thanks! Thorsten ___ Pkg-grass-devel mailing list Pkg-grass-devel@lists.alioth.debian.org http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/pkg-grass-devel