Hi Andrea, I faced the same issue recently and found these two tools to convert DEM into TIN:
- dem2mesh: https://github.com/OpenDroneMap/dem2mesh - tin-terrain https://github.com/heremaps/tin-terrain dem2mesh worked in my use case to convert a large DEM for 3d visualization. It produces nice triangular faces of uniform size. Tin-terrain creates large triangles in flat parts of the mesh. It would be great to have an algorithm like dem2mesh directly in QGIS! Best, -- Jean-Baptiste PETER -----Original Message----- From: QGIS-Developer <qgis-developer-boun...@lists.osgeo.org> On Behalf Of qgis-developer-requ...@lists.osgeo.org Sent: Monday, March 20, 2023 2:21 PM To: qgis-developer@lists.osgeo.org Subject: QGIS-Developer Digest, Vol 209, Issue 25 Send QGIS-Developer mailing list submissions to qgis-developer@lists.osgeo.org To subscribe or unsubscribe via the World Wide Web, visit https://lists.osgeo.org/mailman/listinfo/qgis-developer or, via email, send a message with subject or body 'help' to qgis-developer-requ...@lists.osgeo.org You can reach the person managing the list at qgis-developer-ow...@lists.osgeo.org When replying, please edit your Subject line so it is more specific than "Re: Contents of QGIS-Developer digest..." Today's Topics: 1. QGIS webserver size vs publishing old docs (DelazJ) 2. Tool to create Mesh from raster layer? (Andreas Neumann) 3. Re: Tool to create Mesh from raster layer? (Saber Razmjooei) 4. Re: Tool to create Mesh from raster layer? (Sebastian Gutwein) 5. Re: Tool to create Mesh from raster layer? (Stefan Giese (WhereGroup)) ---------------------------------------------------------------------- Message: 1 Date: Mon, 20 Mar 2023 12:21:51 +0100 From: DelazJ <del...@gmail.com> To: qgis-psc <qgis-...@lists.osgeo.org>, qgis-developer <qgis-developer@lists.osgeo.org>, qgis-community <qgis-community-t...@lists.osgeo.org> Subject: [QGIS-Developer] QGIS webserver size vs publishing old docs Message-ID: <CAECJsSrJO3Lrppdjyvt1=X=eSqWqbYrmLk3_C=9jvaj+5qk...@mail.gmail.com> Content-Type: text/plain; charset="utf-8" Hi all (and sorry for the cross-post) Richard has raised the issue a couple of times with no specific feedback/decision but I think now we NEED to go forward : there is not enough space on our servers to store everything we want to share. Yesterday, I updated the docs infrastructure to serve translated versions of the 3.28 documentation but they are not published this morning, probably because of lack of space to get them pasted. # du -hs * 255M doc-test 579M QGIS-Documentation 7.2G QGIS-Documentation-2.14 6.3G QGIS-Documentation-2.18 7.7G QGIS-Documentation-2.8 12G QGIS-Documentation-3.10 11G QGIS-Documentation-3.16 9.4G QGIS-Documentation-3.22 579M QGIS-Documentation-3.28 8.0G QGIS-Documentation-3.4 31G QGIS-tests 16G QGIS-Website An option could be to rent a bigger webserver but a few questions/suggestions so far (I'm only speaking for the docs as I don't know what is behind other folders): - Do we need to serve all these versions? FYI we recently silently removed and redirected <2.8 docs (and nobody complained) so we could probably be more "aggressive" - It could be nice to define some strategy on this area: e.g. we keep publishing master, current LTR, previous LTR and any older URL is redirected to current LTR --> meaning that today we would be serving only testing in English, 3.28 and 3.22 in English + translations. OR one more older LTR (ie 3.16)? PS: this issue somehow also affects the PyQGIS documentation repo [0], due to github-pages size limits Regards, Harrissou [0] https://github.com/qgis/pyqgis/issues/104#issuecomment-1354338491 -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.osgeo.org/pipermail/qgis-developer/attachments/20230320/68fc300d/attachment-0001.htm> ------------------------------ Message: 2 Date: Mon, 20 Mar 2023 13:56:28 +0100 From: Andreas Neumann <a.neum...@carto.net> To: QGIS Developers List <qgis-developer@lists.osgeo.org> Subject: [QGIS-Developer] Tool to create Mesh from raster layer? Message-ID: <ed59755b7330baa584f427dc2b3d2...@carto.net> Content-Type: text/plain; charset="us-ascii"; Format="flowed" Hi QGIS devs, Is there a tool available to create a Mesh (or TIN as a special mesh variation) from a source raster layer containing terrain values? I did not find one - but maybe I didn't look everywhere. If not in QGIS - do you know an external Open Source tool that could do that, while keeping real world coordinates? Thanks, Andreas -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.osgeo.org/pipermail/qgis-developer/attachments/20230320/2cc5de74/attachment-0001.htm> ------------------------------ Message: 3 Date: Mon, 20 Mar 2023 14:02:50 +0100 From: Saber Razmjooei <saber.razmjo...@lutraconsulting.co.uk> To: Andreas Neumann <a.neum...@carto.net> Cc: QGIS Developers List <qgis-developer@lists.osgeo.org> Subject: Re: [QGIS-Developer] Tool to create Mesh from raster layer? Message-ID: <CAH=WbRAuNmX_fxA1oyqJUL5G=5sq5KH=8vgejurltejgwp1...@mail.gmail.com> Content-Type: text/plain; charset="utf-8" Hi Andreas, There should be a tool to convert vector to mesh (under Processing > Mesh > TIN Mesh Creation). There will also be some new Processing tools for handling point clouds. But I am not aware of any Raster > Mesh tools. Kind regards Saber On Mon, 20 Mar 2023 at 13:56, Andreas Neumann via QGIS-Developer < qgis-developer@lists.osgeo.org> wrote: > Hi QGIS devs, > > Is there a tool available to create a Mesh (or TIN as a special mesh > variation) from a source raster layer containing terrain values? > > I did not find one - but maybe I didn't look everywhere. > > If not in QGIS - do you know an external Open Source tool that could > do that, while keeping real world coordinates? > > Thanks, > > Andreas > _______________________________________________ > QGIS-Developer mailing list > QGIS-Developer@lists.osgeo.org > List info: https://lists.osgeo.org/mailman/listinfo/qgis-developer > Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-developer > -- Saber Razmjooei www.lutraconsulting.co.uk +44 (0)7568 129733 -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.osgeo.org/pipermail/qgis-developer/attachments/20230320/3a16bf0d/attachment-0001.htm> ------------------------------ Message: 4 Date: Mon, 20 Mar 2023 09:11:02 -0400 From: Sebastian Gutwein <b...@rdgland.com> To: Saber Razmjooei <saber.razmjo...@lutraconsulting.co.uk> Cc: Andreas Neumann <a.neum...@carto.net>, QGIS Developers List <qgis-developer@lists.osgeo.org> Subject: Re: [QGIS-Developer] Tool to create Mesh from raster layer? Message-ID: <CAED_52pE-ob9nhZoFiHKKNwCVcEPP3K+jtfYsGYwnNFHM=j...@mail.gmail.com> Content-Type: text/plain; charset="utf-8" The ridiculous work around I use is to go through Blender using the BlenderGIS plugin. Import the raster into Blender as a new mesh > Decimate the mesh > Export as a shapefile > Run TIN Mesh Creation in QGIS. On Mon, Mar 20, 2023 at 9:03?AM Saber Razmjooei via QGIS-Developer < qgis-developer@lists.osgeo.org> wrote: > Hi Andreas, > > There should be a tool to convert vector to mesh (under Processing > > Mesh > > TIN Mesh Creation). There will also be some new Processing tools for > handling point clouds. But I am not aware of any Raster > Mesh tools. > > Kind regards > Saber > > On Mon, 20 Mar 2023 at 13:56, Andreas Neumann via QGIS-Developer < > qgis-developer@lists.osgeo.org> wrote: > >> Hi QGIS devs, >> >> Is there a tool available to create a Mesh (or TIN as a special mesh >> variation) from a source raster layer containing terrain values? >> >> I did not find one - but maybe I didn't look everywhere. >> >> If not in QGIS - do you know an external Open Source tool that could >> do that, while keeping real world coordinates? >> >> Thanks, >> >> Andreas >> _______________________________________________ >> QGIS-Developer mailing list >> QGIS-Developer@lists.osgeo.org >> List info: https://lists.osgeo.org/mailman/listinfo/qgis-developer >> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-developer >> > > > -- > Saber Razmjooei > www.lutraconsulting.co.uk > +44 (0)7568 129733 > _______________________________________________ > QGIS-Developer mailing list > QGIS-Developer@lists.osgeo.org > List info: https://lists.osgeo.org/mailman/listinfo/qgis-developer > Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-developer > -- ___________________________ Sebastian "Bas* " Gutwein *rhymes with Josh Regenerative Design Group 1 Chevalier Ave Greenfield, Ma 01301 Web: regenerativedesigngroup.com (631) 241-1018 *Look close, think big, make change. * -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.osgeo.org/pipermail/qgis-developer/attachments/20230320/4c287965/attachment-0001.htm> ------------------------------ Message: 5 Date: Mon, 20 Mar 2023 14:20:51 +0100 From: "Stefan Giese (WhereGroup)" <stefan.gi...@wheregroup.com> To: Sebastian Gutwein <b...@rdgland.com>, Saber Razmjooei <saber.razmjo...@lutraconsulting.co.uk> Cc: QGIS Developers List <qgis-developer@lists.osgeo.org> Subject: Re: [QGIS-Developer] Tool to create Mesh from raster layer? Message-ID: <d0c6da73-69f4-d776-562e-d0e33b110...@wheregroup.com> Content-Type: text/plain; charset="utf-8"; Format="flowed" Hi all, I think it is not nessasary to go through Blender, just use theese two algorithm: * pixeltopoints * tinmeshcreation Best regards Stefan Am 20.03.2023 um 14:11 schrieb Sebastian Gutwein via QGIS-Developer: > The ridiculous?work around I use is to go through?Blender using the > BlenderGIS plugin. Import the?raster into Blender as a new mesh > > Decimate the mesh > Export as a shapefile > Run TIN Mesh Creation in > QGIS. > > On Mon, Mar 20, 2023 at 9:03?AM Saber Razmjooei via QGIS-Developer > <qgis-developer@lists.osgeo.org> wrote: > > Hi Andreas, > > There should be a tool to convert vector to mesh (under Processing > > Mesh > TIN Mesh Creation). There will also be some new > Processing tools for handling point clouds. But I am not aware of > any Raster > Mesh tools. > > Kind regards > Saber > > On Mon, 20 Mar 2023 at 13:56, Andreas Neumann via QGIS-Developer > <qgis-developer@lists.osgeo.org> wrote: > > Hi QGIS devs, > > Is there a tool available to create a Mesh (or TIN as a > special mesh variation) from a source raster layer containing > terrain values? > > I did not find one - but maybe I didn't look everywhere. > > If not in QGIS - do you know an external Open Source tool that > could do that, while keeping real world coordinates? > > Thanks, > > Andreas > > _______________________________________________ > QGIS-Developer mailing list > QGIS-Developer@lists.osgeo.org > List info: https://lists.osgeo.org/mailman/listinfo/qgis-developer > Unsubscribe: > https://lists.osgeo.org/mailman/listinfo/qgis-developer > > > > -- > Saber Razmjooei > www.lutraconsulting.co.uk <http://www.lutraconsulting.co.uk> > +44 (0)7568 129733 > _______________________________________________ > QGIS-Developer mailing list > QGIS-Developer@lists.osgeo.org > List info: https://lists.osgeo.org/mailman/listinfo/qgis-developer > Unsubscribe: > https://lists.osgeo.org/mailman/listinfo/qgis-developer > > > > -- > ___________________________ > Sebastian "Bas* " Gutwein > *rhymes with Josh > > Regenerative Design Group > 1 Chevalier Ave > Greenfield, Ma 01301 > Web: regenerativedesigngroup.com <http://regenerativedesigngroup.com> > (631) 241-1018 > > /Look close, think big, make change. / > > _______________________________________________ > QGIS-Developer mailing list > QGIS-Developer@lists.osgeo.org > List info:https://lists.osgeo.org/mailman/listinfo/qgis-developer > Unsubscribe:https://lists.osgeo.org/mailman/listinfo/qgis-developer -- Mit freundlichen Gr??en Stefan Giese Projektleiter/Consultant ********************************************** FOSSGIS Konferenz 15.-18. M?rz 2023 in Berlin https://fossgis-konferenz.de/2023/ WhereGroup-Beitr?ge auf der FOSSGIS https://wheregroup.com/unternehmen/aktuelles/ ********************************************** WhereGroup GmbH Schwimmbadstr. 2 79100 Freiburg Germany Tel.: +49 (0)761 / 519 102 - 61 Fax: +49 (0)761 / 519 102 - 11 stefan.gi...@wheregroup.com www.wheregroup.com Gesch?ftsf?hrer: Olaf Knopp, Peter Stamm Amtsgericht Bonn, HRB 9885 -------------- next part -------------- An HTML attachment was scrubbed... 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