Groups > comp.graphics.apps.gnuplot > #3597

Re: set range for second independent variable in special file '++'

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From	Karl Ratzsch <mail.kfr@gmx.net>
Newsgroups	comp.graphics.apps.gnuplot
Subject	Re: set range for second independent variable in special file '++'
Date	Mon, 27 Mar 2017 03:35:39 +0200
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Am 26.03.2017 um 21:30 schrieb Ethan A Merritt:
> Karl Ratzsch wrote:
>> Hm, there are many, i think. The special filename "++" at the moment
>> always directly maps the second independent variable to the y axis,
>> but it could easily be meant to be sth else. Of course one can scale
>> the values to the wanted sampling range in the "using" specifier, but
>> you need a number of additional variables and it makes the script hard
>> to read.
> 
> That much is a trivial change and I agree it is an improvement.
> 
> So as of today's CVS for the development version, '++' uses urange and
> vrange for sampling rather than using xrange and yrange.
> This does not by itself allow you to refer to the sampled variables
> as "u" and "v" however, you'll still have to refer to $1 and $2.
> 
> I know of one minor downside to this change.
> Currently you can't set u or v to log-scale, so with this change
> you won't get nonlinear sampling on '++' even after "set log xy".
> That can be added later.

Not much of a downside, but what about "+" ? Will it use trange now?
That's a bit strong, re backwards compatibility. ?

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Thread

set range for second independent variable in special file '++' Karl Ratzsch <mail.kfr@gmx.net> - 2017-03-20 08:36 +0100
  Re: set range for second independent variable in special file '++' Ethan A Merritt <EAMerritt@gmail.com> - 2017-03-20 09:39 -0700
    Re: set range for second independent variable in special file '++' Karl Ratzsch <mail.kfr@gmx.net> - 2017-03-20 18:56 +0100
      Re: set range for second independent variable in special file '++' Ethan A Merritt <sfeam@users.sourceforge.net> - 2017-03-20 12:36 -0700
        Re: set range for second independent variable in special file '++' Ethan A Merritt <sfeam@users.sourceforge.net> - 2017-03-20 12:38 -0700
          Re: set range for second independent variable in special file '++' Karl Ratzsch <mail.kfr@gmx.net> - 2017-03-24 13:15 +0100
            Re: set range for second independent variable in special file '++' Ethan A Merritt <EAMerritt@gmail.com> - 2017-03-26 12:30 -0700
              Re: set range for second independent variable in special file '++' Karl Ratzsch <mail.kfr@gmx.net> - 2017-03-27 03:35 +0200
                Re: set range for second independent variable in special file '++' Ethan A Merritt <EAMerritt@gmail.com> - 2017-03-26 23:00 -0700
                Re: set range for second independent variable in special file '++' Karl Ratzsch <mail.kfr@gmx.net> - 2017-03-27 22:15 +0200
                Re: set range for second independent variable in special file '++' Karl Ratzsch <mail.kfr@gmx.net> - 2017-04-02 19:02 +0200
                Re: set range for second independent variable in special file '++' Ethan A Merritt <EAMerritt@gmail.com> - 2017-04-05 22:09 -0700

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