"Todd Allen" <toddmallen(a)gmail.com> wrote in message
news:2a34d5a90902162103lfd8202fmcbe76978816f2c8a@mail.gmail.com...
On Mon, Feb 16, 2009 at 6:42 PM, Jay Litwyn
<brewhaha(a)edmc.net> wrote:
"Todd Allen"
<toddmallen(a)gmail.com> wrote in message
news:2a34d5a90902152157k5534f173g83c5c67ad6f83d59@mail.gmail.com...
regarding
http://www.fractint.org/
(...)
If the intent of the license is "We could
force someone to pay for
distribution rights at some point and deny them those rights if they
don't pay up", it is not a free license. Free licenses include freedom
to use commercially.
(...)
Some of the authors of the software provide full contact addresses
(e-mail
and snail), so I think CC-BY-SA tag applies; if you change it, use it, or
want work done on it, then remuneration by donation is *somewhat*
optional,
and you cannot market the changes, because the people who provided the
code
did not intend it for sale. If some major distributor picked it up, or
someone did a major overhaul to make it run under Windows proper, and
then
sold it (I suspect that UltraFractal is along those lines, because it
contains a bug in the outside=atan view that was in a version of Fractint
before ver. 2003), then royalties would come due, and it would be
impractical to figure out who is owed how much. So, I am still thinking
CC-BY-SA, and at cost or less.
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CC-BY-SA doesn't have or allow mandatory payments. It requires only
that you must attribute the original author(s) when redistributing,
and may not change the license. You may be thinking of something more
like CC-BY-SA-NC, which is not a free license. CC-BY-SA allows
commercial use and/or sale without payment, provided that attribution
is done and the license is not changed.
I think that might be the usual use of NC -- to reserve commercial use or
get yourself in on it. From Winfract's about box, "WinFract is copyrighted
freeware, and may not be distributed for commercial purposes without written
permission from the Stone Soup Group. Distribution of Winfract by BBS,
network, and software distributors, etc. is encouraged."
CC-BY-SA-NC I am not sure about SA, and I suspect that it is the case. The
ND would have to be spelt out, researched, or guessed in a lot of cases. I
said that I consider default parameters (and documented parameters) to be
copyrighted, and that is idle speculation -- might not be the case. Some
parameter sets are copyrighted. Some could do with a better colouring job.
Formulas are all over the place, including tight holdings.
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