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Re: online gravitational field line explorer...

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> "Dr J R Stockton"  wrote in message
> news:K0ZkWM4Hd7kSFwAS@invalid.uk.co.demon.merlyn.invalid...

> In comp.lang.javascript message <l6trl6$640$1@speranza.aioe.org>, Sun,
> 24 Nov 2013 13:38:50, Chris M. Thomasson <no@spam.invalid> posted:

> [...]

> >FWIW, and IMVVHO, I prefer checkboxes because an "all checks
> >cleared" condition can be used to trigger a "unique state of action".
> >As for radio buttons, lets say two of them, there are only two states.
> >AFAICT, with checkboxes, there are three states, therefore one can
> >possibly save some UI real estate  here?

> Basically, a checkbox and a pair of radiobuttons, if initialised
> appropriately, are equivalent.  But, in some cases, one may be easier to
> label nicely than the other.

> With radiobuttons, one can initialise to neither/none being on, or, for
> purists, to a hidden button being on.  That, with a bit of code, can
> force the user to _make_ a choice.

IMVHO, the choice contained within the state can be “compressed”
within a single checkbox element. Therefore, one can potentially
save some UI “real estate” wrt expressing the mutating conditions
controlled by the UI controls. Is that a fair statement in any way,
shape or form?


> >> Have another control to determine whether the total "charge" has to be
> >> zero.
> >
> >You mean have a condition that enforces whether or not all of the
> >mass points add to one, or zero? I can see this resulting in a data
> >table that can be used for “probability factors” in various algorithms...

> The code might as well handle the general case, unless some great
> difficulty results.  For electric charges, one can have a non-zero net
> charge; but one might want not to.  Practical masses always have a
> positive sum.  Magnetic poles always sum to zero, until monopoles are
> found.

I will definitely create the controls to realize all of the aspects/features
you have so kindly listed wrt the various behaviors of the application.
AFAICT, once all of this is done, it should be a fairly decent piece of
online software...

;^)




> With radiobuttons, you can provide an extra option, in which the
> conditions and legends can be read from, say, a textarea.  Then your
> code can be used for purposes that you know nothing about.

I think I will use them to select what fractal algorithm the field of mass
points are derived from. I can also use the state of two radio buttons
to define a brand new meaning for all of the checkboxes... Humm.
Then again, I could use a panel of checkboxes to define mutations
to the checkboxes...

Humm...


Anyway, thank you so much for all of the excellent input!

:^)




---------------------------------------

BTW, wrt plotting electrical field lines flowing through a gravity grid...
Will we be able to visualize a lensing effect wrt the resulting graph
of the photons? Humm... I think the software will be able to graph
visualizations of it! I hope they are not in error...

:^o



Anyway, thank you so much for taking an interest. 

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online gravitational field line explorer... "Chris M. Thomasson" <no@spam.invalid> - 2013-11-18 20:17 -0800
  Re: online gravitational field line explorer... "Chris M. Thomasson" <no@spam.invalid> - 2013-11-18 23:21 -0800
  Re: online gravitational field line explorer... "Evertjan." <exjxw.hannivoort@interxnl.net> - 2013-11-19 09:36 +0000
    Re: online gravitational field line explorer... "Jukka K. Korpela" <jkorpela@cs.tut.fi> - 2013-11-19 12:10 +0200
      Re: online gravitational field line explorer... "Evertjan." <exjxw.hannivoort@interxnl.net> - 2013-11-19 11:01 +0000
        Re: online gravitational field line explorer... "Jukka K. Korpela" <jkorpela@cs.tut.fi> - 2013-11-19 13:33 +0200
          Re: online gravitational field line explorer... "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2013-11-19 07:44 -0800
            Re: online gravitational field line explorer... Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-11-19 16:53 +0100
            Re: online gravitational field line explorer... "Chris M. Thomasson" <no@spam.invalid> - 2013-11-19 12:03 -0800
      Re: online gravitational field line explorer... John Harris <niam@jghnorth.org.uk.invalid> - 2013-11-19 16:11 +0000
        Re: online gravitational field line explorer... "Jukka K. Korpela" <jkorpela@cs.tut.fi> - 2013-11-19 19:21 +0200
          Re: online gravitational field line explorer... John Harris <niam@jghnorth.org.uk.invalid> - 2013-11-20 15:48 +0000
            Re: online gravitational field line explorer... "Jukka K. Korpela" <jkorpela@cs.tut.fi> - 2013-11-20 19:15 +0200
              Re: online gravitational field line explorer... John Harris <niam@jghnorth.org.uk.invalid> - 2013-11-21 20:19 +0000
                Re: online gravitational field line explorer... "Jukka K. Korpela" <jkorpela@cs.tut.fi> - 2013-11-21 22:52 +0200
                Re: online gravitational field line explorer... John Harris <niam@jghnorth.org.uk.invalid> - 2013-11-22 17:33 +0000
                Re: online gravitational field line explorer... "Jukka K. Korpela" <jkorpela@cs.tut.fi> - 2013-11-22 19:50 +0200
                Re: online gravitational field line explorer... John Harris <niam@jghnorth.org.uk.invalid> - 2013-11-23 14:17 +0000
                Dollar sign in identifier names (was: online gravitational field line explorer...) Christoph Michael Becker <cmbecker69@arcor.de> - 2013-11-22 19:49 +0100
                Re: online gravitational field line explorer... Eric Bednarz <bednarz@fahr-zur-hoelle.org> - 2013-11-21 22:53 +0100
                Re: online gravitational field line explorer... Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-11-21 23:25 +0100
                Re: online gravitational field line explorer... John Harris <niam@jghnorth.org.uk.invalid> - 2013-11-22 16:57 +0000
                Re: online gravitational field line explorer... "Jukka K. Korpela" <jkorpela@cs.tut.fi> - 2013-11-22 19:12 +0200
                Re: online gravitational field line explorer... Christoph Michael Becker <cmbecker69@arcor.de> - 2013-11-22 19:00 +0100
                Re: online gravitational field line explorer... "Jukka K. Korpela" <jkorpela@cs.tut.fi> - 2013-11-22 21:04 +0200
                Re: online gravitational field line explorer... Christoph Michael Becker <cmbecker69@arcor.de> - 2013-11-22 23:46 +0100
                Re: online gravitational field line explorer... Eric Bednarz <bednarz@fahr-zur-hoelle.org> - 2013-11-23 01:21 +0100
                Re: online gravitational field line explorer... Eric Bednarz <bednarz@fahr-zur-hoelle.org> - 2013-11-22 18:49 +0100
                Re: online gravitational field line explorer... Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-11-22 20:06 +0100
                Re: online gravitational field line explorer... Eric Bednarz <bednarz@fahr-zur-hoelle.org> - 2013-11-22 22:49 +0100
                Re: online gravitational field line explorer... Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-11-22 23:52 +0100
                Re: online gravitational field line explorer... Eric Bednarz <bednarz@fahr-zur-hoelle.org> - 2013-11-23 01:40 +0100
    Re: online gravitational field line explorer... "Chris M. Thomasson" <no@spam.invalid> - 2013-11-19 12:05 -0800
  Re: online gravitational field line explorer... Tiger Sharktopus <tigersharktopus@gmail.com> - 2013-11-19 15:54 -0800
    Re: online gravitational field line explorer... "Chris M. Thomasson" <no@spam.invalid> - 2013-11-21 06:17 -0800
  Re: online gravitational field line explorer... Dr J R Stockton <reply1300@merlyn.demon.co.uk.invalid> - 2013-11-20 19:47 +0000
    Re: online gravitational field line explorer... "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2013-11-20 17:43 -0800
  Re: online gravitational field line explorer... "Chris M. Thomasson" <no@spam.invalid> - 2013-11-21 06:58 -0800
  Re: online gravitational field line explorer... "Chris M. Thomasson" <no@spam.invalid> - 2013-11-22 12:56 -0800
    Re: online gravitational field line explorer... Dr J R Stockton <reply1300@merlyn.demon.co.uk.invalid> - 2013-11-23 18:15 +0000
      Re: online gravitational field line explorer... "Chris M. Thomasson" <no@spam.invalid> - 2013-11-24 13:38 -0800
        Re: online gravitational field line explorer... Dr J R Stockton <reply1300@merlyn.demon.co.uk.invalid> - 2013-11-25 20:47 +0000
          Re: online gravitational field line explorer... "Chris M. Thomasson" <no@spam.invalid> - 2013-11-25 19:51 -0800
            Re: online gravitational field line explorer... Dr J R Stockton <reply1300@merlyn.demon.co.uk.invalid> - 2013-11-27 20:36 +0000
  Re: online gravitational field line explorer... "Chris M. Thomasson" <no@spam.invalid> - 2013-11-29 20:56 -0800
  Re: online gravitational field line explorer... "Chris M. Thomasson" <no@spam.invalid> - 2013-12-01 19:28 -0800

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