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vemsa3d 1.1 - a floss visual em simulator for 3d antennas
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source 158 KB VEMSA3D_source_11.zip http://rga.googlecode.com/files/VEMSA3D_source_11.zip exe standalone 971 KB VEMSA3D_exe_standalone_11.zip http://rga.googlecode.com/files/VEMS...ndalone_11.zip vemsa3d all downloads: http://code.google.com/p/rga/downloads/list A FLOSS Visual EM Simulator for 3D Antennas http://arxiv.org/abs/1006.0031 The RGA project: http://code.google.com/p/rga/ Petros SV7BAX Antennas Research Group, Palaia Morsini, Xanthi, Thrace, Hellas, EU -Not-for-Profit- |
vemsa3d 1.1 - a floss visual em simulator for 3d antennas
On 8/10/2010 5:39 PM, wrote:
- source 158 KB VEMSA3D_source_11.zip http://rga.googlecode.com/files/VEMSA3D_source_11.zip exe standalone 971 KB VEMSA3D_exe_standalone_11.zip http://rga.googlecode.com/files/VEMS...ndalone_11.zip vemsa3d all downloads: http://code.google.com/p/rga/downloads/list A FLOSS Visual EM Simulator for 3D Antennas http://arxiv.org/abs/1006.0031 The RGA project: http://code.google.com/p/rga/ Petros SV7BAX Antennas Research Group, Palaia Morsini, Xanthi, Thrace, Hellas, EU -Not-for-Profit- Well, that certainly allows "the little guy" to view the code and extract the important parameters, math and formulas so that they can construct their own specialized tools! Just a bit of understanding how math is defined by a computer language and you are good-to-go. Regards, JS |
vemsa3d 1.1 - a floss visual em simulator for 3d antennas
On Aug 11, 1:10*pm, John Smith wrote:
On 8/10/2010 5:39 PM, wrote: - * *source * *158 KB * *VEMSA3D_source_11.zip * *http://rga.googlecode.com/files/VEMSA3D_source_11.zip * *exe standalone * *971 KB * *VEMSA3D_exe_standalone_11.zip * *http://rga.googlecode.com/files/VEMS...ndalone_11.zip * *vemsa3d all downloads: * *http://code.google.com/p/rga/downloads/list * *A FLOSS Visual EM Simulator for 3D Antennas * *http://arxiv.org/abs/1006.0031 * *The RGA project: * *http://code.google.com/p/rga/ * *Petros SV7BAX * *Antennas Research Group, Palaia Morsini, Xanthi, Thrace, Hellas, EU * *-Not-for-Profit- Well, that certainly allows "the little guy" to view the code and extract the important parameters, math and formulas so that they can construct their own specialized tools! *Just a bit of understanding how math is defined by a computer language and you are good-to-go. Regards, JS DANGER WILL ROBINSON!!! a 'bit of understanding' in this case could lead to totally incorrect results. be sure you thoroughly understand the limitations of the 'thin polygonal wire' model and any earth model they are using. it is likely this will have lots of undocumented limitations. also i worry about their claim of comparing to other freeware results, do they only build models for comparison that are well represented in both tools? and do they understand the limitations of what they are comparing to? |
vemsa3d 1.1 - a floss visual em simulator for 3d antennas
John Smith wrote:
On 8/10/2010 5:39 PM, wrote: - source 158 KB VEMSA3D_source_11.zip http://rga.googlecode.com/files/VEMSA3D_source_11.zip exe standalone 971 KB VEMSA3D_exe_standalone_11.zip http://rga.googlecode.com/files/VEMS...ndalone_11.zip vemsa3d all downloads: http://code.google.com/p/rga/downloads/list A FLOSS Visual EM Simulator for 3D Antennas http://arxiv.org/abs/1006.0031 The RGA project: http://code.google.com/p/rga/ Petros SV7BAX Antennas Research Group, Palaia Morsini, Xanthi, Thrace, Hellas, EU -Not-for-Profit- Well, that certainly allows "the little guy" to view the code and extract the important parameters, math and formulas so that they can construct their own specialized tools! Just a bit of understanding how math is defined by a computer language and you are good-to-go. Regards, JS One wonders why they converted Richmond's older code rather than NEC2. Both are available as FORTRAN source. Even NEC4 source is readily available these days, although not for free (so it wouldn't necessarily meet their FLOSS objective.. I'm not sure.. they wouldn't be copying it, they'd be converting it, by hand, to C++, and I think that would break the "proprietary" link) Maybe Richmond's code does insulation? or wires in a conductive medium? |
vemsa3d 1.1 - a floss visual em simulator for 3d antennas
On Aug 11, 5:52*pm, Jim Lux wrote:
John Smith wrote: On 8/10/2010 5:39 PM, wrote: - * *source * *158 KB * *VEMSA3D_source_11.zip * *http://rga.googlecode.com/files/VEMSA3D_source_11.zip * *exe standalone * *971 KB * *VEMSA3D_exe_standalone_11.zip * *http://rga.googlecode.com/files/VEMS...ndalone_11.zip * *vemsa3d all downloads: * *http://code.google.com/p/rga/downloads/list * *A FLOSS Visual EM Simulator for 3D Antennas * *http://arxiv.org/abs/1006.0031 * *The RGA project: * *http://code.google.com/p/rga/ * *Petros SV7BAX * *Antennas Research Group, Palaia Morsini, Xanthi, Thrace, Hellas, EU * *-Not-for-Profit- Well, that certainly allows "the little guy" to view the code and extract the important parameters, math and formulas so that they can construct their own specialized tools! *Just a bit of understanding how math is defined by a computer language and you are good-to-go. Regards, JS One wonders why they converted Richmond's older code rather than NEC2. Both are available as FORTRAN source. *Even NEC4 source is readily available these days, although not for free (so it wouldn't necessarily meet their FLOSS objective.. I'm not sure.. they wouldn't be copying it, they'd be converting it, by hand, to C++, and I think that would break the "proprietary" link) Maybe Richmond's code does insulation? or wires in a conductive medium? the proprietaryness(is that a word?) or the copyright status may not be broken by changing language if the algorithms are claimed as the actual intellectual property... the code is just an implementation of it, no matter what the language. There would be no need to convert the fortran anyway, there are still fortran compilers available and you could call the fortran computations from any language gui front end. i'm doing a project like that now that calls old fortran, c, c+ +, or pascal computation modules from a new c# front end. |
vemsa3d 1.1 - a floss visual em simulator for 3d antennas
On 8/11/2010 9:03 AM, K1TTT wrote:
On Aug 11, 1:10 pm, John wrote: On 8/10/2010 5:39 PM, wrote: - source 158 KB VEMSA3D_source_11.zip http://rga.googlecode.com/files/VEMSA3D_source_11.zip exe standalone 971 KB VEMSA3D_exe_standalone_11.zip http://rga.googlecode.com/files/VEMS...ndalone_11.zip vemsa3d all downloads: http://code.google.com/p/rga/downloads/list A FLOSS Visual EM Simulator for 3D Antennas http://arxiv.org/abs/1006.0031 The RGA project: http://code.google.com/p/rga/ Petros SV7BAX Antennas Research Group, Palaia Morsini, Xanthi, Thrace, Hellas, EU -Not-for-Profit- Well, that certainly allows "the little guy" to view the code and extract the important parameters, math and formulas so that they can construct their own specialized tools! Just a bit of understanding how math is defined by a computer language and you are good-to-go. Regards, JS DANGER WILL ROBINSON!!! a 'bit of understanding' in this case could lead to totally incorrect results. be sure you thoroughly understand the limitations of the 'thin polygonal wire' model and any earth model they are using. it is likely this will have lots of undocumented limitations. also i worry about their claim of comparing to other freeware results, do they only build models for comparison that are well represented in both tools? and do they understand the limitations of what they are comparing to? LOL! Yeah, well, a lot of people wonder and worry about the light in the refrigerator, to--if it goes out when you shut the door! Regards, JS |
vemsa3d 1.1 - a floss visual em simulator for 3d antennas
On 8/11/2010 11:53 AM, K1TTT wrote:
On Aug 11, 5:52 pm, Jim wrote: John Smith wrote: On 8/10/2010 5:39 PM, wrote: - source 158 KB VEMSA3D_source_11.zip http://rga.googlecode.com/files/VEMSA3D_source_11.zip exe standalone 971 KB VEMSA3D_exe_standalone_11.zip http://rga.googlecode.com/files/VEMS...ndalone_11.zip vemsa3d all downloads: http://code.google.com/p/rga/downloads/list A FLOSS Visual EM Simulator for 3D Antennas http://arxiv.org/abs/1006.0031 The RGA project: http://code.google.com/p/rga/ Petros SV7BAX Antennas Research Group, Palaia Morsini, Xanthi, Thrace, Hellas, EU -Not-for-Profit- Well, that certainly allows "the little guy" to view the code and extract the important parameters, math and formulas so that they can construct their own specialized tools! Just a bit of understanding how math is defined by a computer language and you are good-to-go. Regards, JS One wonders why they converted Richmond's older code rather than NEC2. Both are available as FORTRAN source. Even NEC4 source is readily available these days, although not for free (so it wouldn't necessarily meet their FLOSS objective.. I'm not sure.. they wouldn't be copying it, they'd be converting it, by hand, to C++, and I think that would break the "proprietary" link) Maybe Richmond's code does insulation? or wires in a conductive medium? the proprietaryness(is that a word?) or the copyright status may not be broken by changing language if the algorithms are claimed as the actual intellectual property... the code is just an implementation of it, no matter what the language. There would be no need to convert the fortran anyway, there are still fortran compilers available and you could call the fortran computations from any language gui front end. i'm doing a project like that now that calls old fortran, c, c+ +, or pascal computation modules from a new c# front end. I would be really surprised if you could patent math formulas, equations, etc. The software which uses them can, obviously, be patented. Something with is "self-intuitive" or a law of nature just can't be patented! Regards, JS |
vemsa3d 1.1 - a floss visual em simulator for 3d antennas
On Aug 11, 7:20*pm, John Smith wrote:
On 8/11/2010 11:53 AM, K1TTT wrote: On Aug 11, 5:52 pm, Jim *wrote: John Smith wrote: On 8/10/2010 5:39 PM, wrote: - * * source * * 158 KB * * VEMSA3D_source_11.zip * *http://rga.googlecode.com/files/VEMSA3D_source_11.zip * * exe standalone * * 971 KB * * VEMSA3D_exe_standalone_11.zip * *http://rga.googlecode.com/files/VEMS...ndalone_11.zip * * vemsa3d all downloads: * *http://code.google.com/p/rga/downloads/list * * A FLOSS Visual EM Simulator for 3D Antennas * *http://arxiv.org/abs/1006.0031 * * The RGA project: * *http://code.google.com/p/rga/ * * Petros SV7BAX * * Antennas Research Group, Palaia Morsini, Xanthi, Thrace, Hellas, EU * * -Not-for-Profit- Well, that certainly allows "the little guy" to view the code and extract the important parameters, math and formulas so that they can construct their own specialized tools! *Just a bit of understanding how math is defined by a computer language and you are good-to-go. Regards, JS One wonders why they converted Richmond's older code rather than NEC2. Both are available as FORTRAN source. *Even NEC4 source is readily available these days, although not for free (so it wouldn't necessarily meet their FLOSS objective.. I'm not sure.. they wouldn't be copying it, they'd be converting it, by hand, to C++, and I think that would break the "proprietary" link) Maybe Richmond's code does insulation? or wires in a conductive medium? the proprietaryness(is that a word?) or the copyright status may not be broken by changing language if the algorithms are claimed as the actual intellectual property... the code is just an implementation of it, no matter what the language. *There would be no need to convert the fortran anyway, there are still fortran compilers available and you could call the fortran computations from any language gui front end. *i'm doing a project like that now that calls old fortran, c, c+ +, or pascal computation modules from a new c# front end. I would be really surprised if you could patent math formulas, equations, etc. *The software which uses them can, obviously, be patented. Something with is "self-intuitive" or a law of nature just can't be patented! Regards, JS what is intuitive to you is a patented or copyrighted work from a lawyer's point of view. while you can't patent or copyright maxwell's equations you can patent or copyright a method of applying them to come up with solutions to practical problems. these are common things now in the software and business world, though some countries have stopped issuing software patents and others are considering that move also. but the copyright process is well ingrained in the software world. So much so that there are specific copyright notices you can use to specify that you DON'T want to stop anyone from using your code, just so you don't get bothered by people asking all the time. |
vemsa3d 1.1 - a floss visual em simulator for 3d antennas
K1TTT wrote:
On Aug 11, 5:52 pm, Jim Lux wrote: John Smith wrote: On 8/10/2010 5:39 PM, wrote: - source 158 KB VEMSA3D_source_11.zip http://rga.googlecode.com/files/VEMSA3D_source_11.zip exe standalone 971 KB VEMSA3D_exe_standalone_11.zip http://rga.googlecode.com/files/VEMS...ndalone_11.zip vemsa3d all downloads: http://code.google.com/p/rga/downloads/list A FLOSS Visual EM Simulator for 3D Antennas http://arxiv.org/abs/1006.0031 The RGA project: http://code.google.com/p/rga/ Petros SV7BAX Antennas Research Group, Palaia Morsini, Xanthi, Thrace, Hellas, EU -Not-for-Profit- Well, that certainly allows "the little guy" to view the code and extract the important parameters, math and formulas so that they can construct their own specialized tools! Just a bit of understanding how math is defined by a computer language and you are good-to-go. Regards, JS One wonders why they converted Richmond's older code rather than NEC2. Both are available as FORTRAN source. Even NEC4 source is readily available these days, although not for free (so it wouldn't necessarily meet their FLOSS objective.. I'm not sure.. they wouldn't be copying it, they'd be converting it, by hand, to C++, and I think that would break the "proprietary" link) Maybe Richmond's code does insulation? or wires in a conductive medium? the proprietaryness(is that a word?) or the copyright status may not be broken by changing language if the algorithms are claimed as the actual intellectual property... I don't think that's what's claimed by Lawrence Livermore Lab.. the code is copyrighted, and the license agreement (I don't have it here in front of me, so I'm working off memory) basically says you can't redistribute the code. The algorithms have all been described elsewhere. the code is just an implementation of it, no matter what the language. There would be no need to convert the fortran anyway, there are still fortran compilers available and you could call the fortran computations from any language gui front end. i'm doing a project like that now that calls old fortran, c, c+ +, or pascal computation modules from a new c# front end. I did wonder why the authors bothered to convert from FORTRAN to C++... but I think they did that as a separate activity, previously, for other reasons. There's a comment in their paper about not using automated translators, too (presumably to avoid any sort of claim that the output of the translator is somehow contaminated with the proprietaryness of the translator? Kind of like Intel copyrighting the assembler instruction mnemonics for the 8080, so Zilog had to use different ones) Probably it's just a historical artifact.. when they started their development a while ago, they happened to start with the Richmond code, as opposed to the Burke and Poggio code. |
vemsa3d 1.1 - a floss visual em simulator for 3d antennas
On 8/11/2010 12:43 PM, K1TTT wrote:
On Aug 11, 7:20 pm, John wrote: On 8/11/2010 11:53 AM, K1TTT wrote: what is intuitive to you is a patented or copyrighted work from a lawyer's point of view. while you can't patent or copyright maxwell's equations you can patent or copyright a method of applying them to come up with solutions to practical problems. these are common things now in the software and business world, though some countries have stopped issuing software patents and others are considering that move also. but the copyright process is well ingrained in the software world. So much so that there are specific copyright notices you can use to specify that you DON'T want to stop anyone from using your code, just so you don't get bothered by people asking all the time. I never seen this as a problem or a road block. You are simply a matter of all the knowledge you have picked up from others along the way, most likely, a large portion of this came from copyrighted materials. Indeed, if I read a copyrighted book, then turn around and write a book, containing all I have read, I have done no wrong; If I copied the work, I am. When it comes to math, removed from other works, it is exactly the same. You would have to be an idiot to do it in such a way as to cause problems. This is all so self-apparent, it always puzzles me when I am brought to putting the concept(s) to text, or even spoken speech! Regards, JS |
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