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Re: Extending plot types - adding a CIE 1931 type diagram

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hvezdny.cestovatel@gmail.com wrote:

> Hello guys,
> 
> I would like to extends Gnuplot with the ability to generate a CIE1931
> digram of color spectrum, basically looking like this one:
> 
> http://commons.wikimedia.org/wiki/File:CIExy1931.svg
> 
> This kind of generator is already present in netpbm package as ppmcie.
> 
> I would like Gnuplot to be able to provide this background for the
> plot, so one could easily plot curves over this background directly
> with 'plot' command, withou the need of fitting the background to the
> actual plot.
> 
> So the task would be:
> 1. generate the background color image with the right coordinates, so
> that 2. plot points and curves into that plot as usual, taking advance
> of the coordinate system of the CIE x-y diagram

If you already have such an image, it can be mapped onto a specific 
coordinate range of the plot area using the plot style "with rgbimage".
See for example

  http://gnuplot.sourceforge.net/demo_cvs/barchart_art.html


> 
> Thanks in advance for ideas,
> Martin

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Extending plot types - adding a CIE 1931 type diagram hvezdny.cestovatel@gmail.com - 2013-08-07 13:24 -0700
  Re: Extending plot types - adding a CIE 1931 type diagram sfeam <sfeam@users.sourceforge.net> - 2013-08-07 18:51 -0700
  Re: Extending plot types - adding a CIE 1931 type diagram Ingo Thies <ingo.thies@gmx.de> - 2013-08-08 10:30 +0200
    Re: Extending plot types - adding a CIE 1931 type diagram hvezdny.cestovatel@gmail.com - 2013-08-16 02:47 -0700

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