|
[Sponsors] |
February 12, 2011, 22:50 |
CastNet & OpenFOAM
|
#1 |
Senior Member
Join Date: Nov 2009
Posts: 411
Rep Power: 19 |
Hello,
I wonder how moral it is to make money using the work of other people, apparently this is what CastNet tries to do: http://www.dhcae-tools.com/OpenFOAM.htm they sell ... a GUI for OpenFoam. What the community thinks about this ? Do |
|
February 13, 2011, 03:14 |
|
#2 |
Senior Member
Arjun
Join Date: Mar 2009
Location: Nurenberg, Germany
Posts: 1,285
Rep Power: 34 |
I do not think they are making money from other people's work. If they made some effort in making this GUI then what is wrong in selling it??
By the way I think that makers of openFOAM also make money from openFOAM, and nothing wrong or immoral in it. |
|
February 13, 2011, 08:09 |
|
#3 | |
Retired Super Moderator
Bruno Santos
Join Date: Mar 2009
Location: Lisbon, Portugal
Posts: 10,982
Blog Entries: 45
Rep Power: 128 |
Greetings to all!
@DoHander: If you were following this thread "OpenFOAM Under a Lesser GPL (LGPL) License" you would've picked up on what you can or cannot do with GPL software. For example, start reading here: Quote:
This is why CAELinux can charge 20 bucks for the DVD version and they provide tons of GPL software in it! It can be interpreted like this: what you are selling isn't the software itself, it's the service for providing the software. CastNet would be only infringing the law if by any chance it was linked directly or during run time, to any of the libraries of OpenFOAM. This would mean that technically OpenFOAM would be part of the CastNet binaries, thus making it automatically GPL'ed. But if it only prepares the case files and does system calls to run the desired OpenFOAM applications, then there isn't any problem, since this would make CastNet technically independent of OpenFOAM. But if they provide a new solver for CastNet that links to OpenFOAM, then that solver(s) is under the GPL terms and the source code (for all of the changes and additions to OpenFOAM) must be available for a price not superior to price of the binaries. So, read up on the GPL FAQ before you start making accusations Otherwise some unmentionable cable news channels will pick up on your comment and start making accusations on their own, without verifying the integrity of the story, because they only care about ratings... and GORE Best regards, Bruno
__________________
|
||
February 13, 2011, 09:48 |
|
#4 |
Senior Member
Join Date: Nov 2009
Posts: 411
Rep Power: 19 |
@wyldckat
I know they are not infringing any copyright law, my point was about the "morality" (if there is such a thing) of their enterprise. It was not even an accusation, just a personal curiosity about what other people think about this. Also, comparing CastNet with CAElinux is not fair, you can download the cd image for free, if you want a physical cd it is fair to ask money for it. Please check how much money CastNet charge per month for using their case generator . Again this is not about legalities, I know they have the "right" to do that ... I've recently seen a similar story with someone that does a similar trick with the open source software Blender. Do |
|
February 13, 2011, 09:54 |
|
#5 | |
Senior Member
Join Date: Nov 2009
Posts: 411
Rep Power: 19 |
@arjun
Quote:
Anyway, probably I was a bit harsh yesterday night when I've posted my question; but I was stil under the impression of a similar trick done with Blender by a different company ... Do |
||
February 13, 2011, 11:05 |
|
#6 |
Retired Super Moderator
Bruno Santos
Join Date: Mar 2009
Location: Lisbon, Portugal
Posts: 10,982
Blog Entries: 45
Rep Power: 128 |
Hi DoHander,
OK, I didn't give enough relevance the "moral" point of view I think I deduced that you didn't take into GPL's licensing mechanism. But if you think CastNet is outrageous, check this out: http://www.iconcfd.com/de/services/foampro/aboutfoampro I can only assume they have some trademark agreement with OpenCFD, because in this case, even if they state that OpenFOAM is OpenCFD's trademark, the statement doesn't mention that they have an agreement with OpenCFD to use FOAM in their product's name! As for CastNet's price, I think it's about 1/3-1/4 of the cost per year, when compared to other professional CFD applications. And it isn't bound to a number of processors/cores licensing mechanism... And it's somewhat targeted to a German audience... And seems to be a full GUI, with setting up, pre-processing, running and post-processing, all into one! Sooo... from a German industry point of view, it costs a lot less!! And if you take into account the need for investing 1000-5000€ in training per person in using OpenFOAM, without relying on these kinds of software, it might be more cost effective in the short run. So, econo-morally speaking, it doesn't seem unethical It's just another packaged service! But for something more "cost effective", you can also checkout Symscape's Caedium, which can also work with OpenFOAM But connecting to OpenFOAM is only a side capability in this case. As for the Blender based software, I think I know which one you're talking about Again, that can be considered more of a service than actually just selling software. Now, if they don't even want to sell the code changes made to both Blender and OpenFOAM to their clients (it the clients can get their hands on the binaries, that is), then FSF will want to hear about it and bring forth legal hell onto them Best regards, Bruno
__________________
|
|
February 13, 2011, 15:55 |
|
#7 |
Member
Join Date: Nov 2009
Posts: 36
Rep Power: 16 |
Hi Do,
I think the point is, CastNet is based on a commercial meshing solution, comparable to ANSA, Pointwise etc. All of them offer more or less GUI capablities for OpenFOAM. Also ANSA and Pointwise don't offer their products for "free" because OpenFOAM is "free". There are many open source systems for meshing and preprocessor for OpenFOAM, if you are happy with them it's fine, if not there are commercial alternatives, which is fine as well. Best regards Stawrogin |
|
February 14, 2011, 03:23 |
|
#8 |
Senior Member
|
Hi,
what is special about CastNet is that it reads Cad Data from Commercial Programms =>Parasolid, ACIS. Ulrich Heck has licenced therefore the commercial Product from Simmetrix http://www.simmetrix.com/products/Si...m/GeomSim.html and build Castnet around that. |
|
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
[Other] CastNet: modeling and meshing tool for OpenFOAM | ulli | OpenFOAM Meshing & Mesh Conversion | 7 | May 31, 2011 02:14 |
Cross-compiling OpenFOAM 1.7.0 on Linux for Windows 32 and 64bits with Mingw-w64 | wyldckat | OpenFOAM Announcements from Other Sources | 3 | September 8, 2010 07:25 |
Modified OpenFOAM Forum Structure and New Mailing-List | pete | Site News & Announcements | 0 | June 29, 2009 06:56 |
64bitrhel5 OF installation instructions | mirko | OpenFOAM Installation | 2 | August 12, 2008 19:07 |
Adventure of fisrst openfoam installation on Ubuntu 710 | jussi | OpenFOAM Installation | 0 | April 24, 2008 15:25 |