[OSGeo-Discuss] Call for Software demos -OSGIS 2009
Dear colleagues, We are inviting contributions for software demonstrations of open source GIS technologies from interested people and organizations for OSGIS 2009. Interested participants should submit an abstract description of the Open source software demos (maximum 500 words) to suchith.an...@nottingham.ac.uk before 30 March 2009. Details and registrations information at http://www.opensourcegis.org.uk/ The OSGIS UK 2009 software demos will be presented at an separate session to the conference audience. Please contact me for any information needed. Best wishes, Suchith Anand Dr Suchith Anand Centre for Geospatial Science Sir Clive Granger Building University of Nottingham Tel: (0)115 846 8408 url: http://www.nottingham.ac.uk/cgs/cgs_suchith_anand.html This message has been checked for viruses but the contents of an attachment may still contain software viruses, which could damage your computer system: you are advised to perform your own checks. Email communications with the University of Nottingham may be monitored as permitted by UK legislation. ___ Discuss mailing list Discuss@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/discuss
[OSGeo-Discuss] RE: Open source TIN code?
Following up on my post, for anyone interested: the news isn't good. Most of the responses I got were pointers to Isenburg's and Shewchuck's work, such as http://www.cs.cmu.edu/~quake/triangle.html and http://www.cs.unc.edu/~isenburg/sd/ I did know about these, and they are indeed good stuffs, but folks should be aware that they are *not* open source libraries. A lot of people think their work is free but to the best of my knowledge it is not. (Triangle is copyrighted by the author and may not be sold or included in commercial products without a license; Isenburg's code has the copyright assigned to him with no accompanying BSD-like or GPL-like assurances.) I also was given pointers to.. * FIST (http://www.cosy.sbg.ac.at/~held/projects/triang/triang.html), but the web page explicitly says FIST has not been released into the public domain (by which I assume they mean copyleft). * GRASS (http://grass.osgeo.org/grass64/manuals/html64_user/v.delaunay.html), which is under GPL * TerraLib (http://www.dpi.inpe.br/terralib/html/v320/html/group___math_const.html), which is under LGPL * Sexante (http://bezdek2009dp.googlecode.com/svn/trunk/myAlgorithmSextante/src/es/unex/sextante/vectorTools/) which is also GPL Finally, Ben Discoe has a site (http://vterrain.org/Implementation/Libs/triangulate.html) listing a bunch of links that I've not yet dug into. I'm hoping to find something in there I can use. If anyone has any other suggestions, or is aware of inaccuracies in my above statements, pls let me know. Thanks. -mpg -Original Message- From: Michael P. Gerlek Sent: Monday, March 02, 2009 10:17 AM To: 'OSGeo Discussions' Subject: Open source TIN code? The Community has need of BSD-licensed source code for TIN generation (in 3-space). It doesn't have to be really good, just good enough for some simple demo apps (for example, full-on Delauney support not needed). I know there are a bunch of TIN algs out there on the net in various places, but I don't have much experience with any of them. If anyone has any pointers, I'd appreciate it. Thanks -- -mpg ___ Discuss mailing list Discuss@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/discuss
Re: [OSGeo-Discuss] RE: Open source TIN code?
Traian Stanev wrote: It's probably worth sending an email to Isenburg to ask for the actual licensing restrictions of his stuff. It was developed under an NSF grant, so he may not have much choice but to allow it to be used in a BSD-like way. We have already walked [1] that way in libLAS and it wasn't easy, a little roller coaster. [1] http://lists.osgeo.org/pipermail/liblas-devel/2008-October/000355.html Best regards, -- Mateusz Loskot, http://mateusz.loskot.net Charter Member of OSGeo, http://osgeo.org ___ Discuss mailing list Discuss@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/discuss
RE: [OSGeo-Discuss] RE: Open source TIN code?
Yeah, I have anecdotal evidence Isenburg gave the OK (Hobu noted it on the liblas list), but he didn't specify exactly for *what* he was okay with from the tools collection which makes me nervous. If he were to say all of it, then we're all set (I just care about the TINner inside lasview). Sometimes it's a pain when you try to play by the rules :-( -mpg -Original Message- From: discuss-boun...@lists.osgeo.org [mailto:discuss-boun...@lists.osgeo.org] On Behalf Of Mateusz Loskot Sent: Monday, March 23, 2009 4:55 PM To: OSGeo Discussions Subject: Re: [OSGeo-Discuss] RE: Open source TIN code? Traian Stanev wrote: It's probably worth sending an email to Isenburg to ask for the actual licensing restrictions of his stuff. It was developed under an NSF grant, so he may not have much choice but to allow it to be used in a BSD-like way. We have already walked [1] that way in libLAS and it wasn't easy, a little roller coaster. [1] http://lists.osgeo.org/pipermail/liblas-devel/2008-October/000355.html Best regards, -- Mateusz Loskot, http://mateusz.loskot.net Charter Member of OSGeo, http://osgeo.org ___ Discuss mailing list Discuss@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/discuss ___ Discuss mailing list Discuss@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/discuss
