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2d slices of 3d surface or 3d object

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  2d slices of 3d surface or 3d object Dale <dale@dalekelly.org> - 2014-12-29 04:42 +0000
    Re: 2d slices of 3d surface or 3d object Karl <mail.kfr@gmx.net> - 2014-12-29 10:54 +0100
      Re: 2d slices of 3d surface or 3d object Dale <dale@dalekelly.org> - 2014-12-30 03:34 +0000
    Re: 2d slices of 3d surface or 3d object Gavin Buxton <gavinbuxton@gmail.com> - 2014-12-29 06:33 -0800
      Re: 2d slices of 3d surface or 3d object Dale <dale@dalekelly.org> - 2014-12-30 03:33 +0000

#2672 — 2d slices of 3d surface or 3d object

probably related to contour, contour parameters, 
or surfaces, but, I don't see a "slice" option
for 3d plots, and I don't see the word "slice"
used at all 

I am working off the command line help as opposed
to the whole documentation, the command line help
is very helpful

here is an example I am working off
http://www.dalekelly.org/text/gnuplot_CIELUV.txt
http://www.dalekelly.org/plot/D50CIELUV.gnuplot
http://www.dalekelly.org/images/CIELUVD50.png


-- 
(my whereabouts below)
http://www.dalekelly.org

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#2673

Am 29.12.2014 um 05:42 schrieb Dale:
> probably related to contour, contour parameters, 
> or surfaces, but, I don't see a "slice" option
> for 3d plots, and I don't see the word "slice"
> used at all 
> 
> I am working off the command line help as opposed
> to the whole documentation, the command line help
> is very helpful

They are supposed to be identical, content-wise.

> here is an example I am working off
> http://www.dalekelly.org/text/gnuplot_CIELUV.txt
> http://www.dalekelly.org/plot/D50CIELUV.gnuplot
> http://www.dalekelly.org/images/CIELUVD50.png


The demo script "discrete.dem" ("set cntrparam") does what I think
you´re after, if you combine it with "unset surface" to switch off the
3D part.

http://www.gnuplot.info/demo/discrete.html

"help contour" gives a useful example, first saving the contour to a
table, and then doing a conventional 2D plot with that.

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#2676

On 2014-12-29, Karl <mail.kfr@gmx.net> wrote:
> Am 29.12.2014 um 05:42 schrieb Dale:
>> probably related to contour, contour parameters, 
>> or surfaces, but, I don't see a "slice" option
>> for 3d plots, and I don't see the word "slice"
>> used at all 
>> 
>> I am working off the command line help as opposed
>> to the whole documentation, the command line help
>> is very helpful
>
> They are supposed to be identical, content-wise.
>
>> here is an example I am working off
>> http://www.dalekelly.org/text/gnuplot_CIELUV.txt
>> http://www.dalekelly.org/plot/D50CIELUV.gnuplot
>> http://www.dalekelly.org/images/CIELUVD50.png
>
>
> The demo script "discrete.dem" ("set cntrparam") does what I think
> you´re after, if you combine it with "unset surface" to switch off the
> 3D part.
>
> http://www.gnuplot.info/demo/discrete.html
>
> "help contour" gives a useful example, first saving the contour to a
> table, and then doing a conventional 2D plot with that.
>
>

Thank you. I will look into this and reply back.


-- 
(my whereabouts below)
http://www.dalekelly.org

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#2674

> 
> here is an example I am working off
> http://www.dalekelly.org/text/gnuplot_CIELUV.txt
> http://www.dalekelly.org/plot/D50CIELUV.gnuplot
> http://www.dalekelly.org/images/CIELUVD50.png
> 

Hi

When I think slice, I think of the 2D slices through 3D data that matlab does - an example on Octave (free alternative to matlab) is given here:

http://octave.sourceforge.net/octave/function/slice.html

To my knowledge gnuplot can't do this, and octave, easyviz, etc ... might be better?

Best


Gavin

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#2675

On 2014-12-29, Gavin Buxton <gavinbuxton@gmail.com> wrote:
>> 
>> here is an example I am working off
>> http://www.dalekelly.org/text/gnuplot_CIELUV.txt
>> http://www.dalekelly.org/plot/D50CIELUV.gnuplot
>> http://www.dalekelly.org/images/CIELUVD50.png
>> 
>
> Hi
>
> When I think slice, I think of the 2D slices through 3D data that matlab does - an example on Octave (free alternative to matlab) is given here:
>
> http://octave.sourceforge.net/octave/function/slice.html
>
> To my knowledge gnuplot can't do this, and octave, easyviz, etc ... might be better?
>
> Best
>
>
> Gavin

I did get the word script from matlab

thanks for the other software suggestions

I read on gnuplot's main site that it isn't fully GPL compliant,
it does something like limit the distribution of editing of their
source, not that I am operating at that level



-- 
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http://www.dalekelly.org

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