Gnuplot Development

Known bugs

• mathematics

\startGNUPLOTscript{exp}
plot [0:3] 2/sqrt(pi)*exp(-x**2) t '$\frac{2}{\sqrt{\pi}}e^{-x^2}$'
\stopGNUPLOTscript

• comments

\startGNUPLOTscript{sin}
# this comment should be ignored
plot sin(x)
\stopGNUPLOTscript

• doesn't work with XeTeX yet
• Rotated PostScript images

-dAutoRotatePages=/PageByPage

TODO:

ConTeXt + terminal

• contour plot, set style fill pattern
• images
• handling fonts / set label "font"
• colour palettes
• smooth shading

Efficiency

• optimize the number of gnuplot runs (if possible, gnuplot should be run only once)
• optimize the number of times for loading/converting an already used graphic

Gnuplot core

• CLIP lines & points
• MITTERED/BUTT
• encoding: bigger list, it's not updated in help (encoding), add utf-8
• pm3d - smooth shading

Obscure ideas

• set decimalsign ',' based on language setting or locales

What has to be added to m-gnuplot.tex to support ConTeXt terminal

What has to be added to context.trm

High priority

• fix the syntax for

set terminal context

• write documentation
• [HTH] add \switchtobodyfont[whateverisprovided]\strut to evert \sometxt: try using (implementing first) \GPtext instead of \sometxt

Middle priority

• support different font sizes
• check if everything is documented well enough in help

Low priority

• implement with_image: once it's clear how to do it
• study the code for palettes, implement them and document them
• (need some interference with the core code) improve the code for

draw_color_smooth_box(MODE_SPLOT) in graph3d.c -> color.c

Legend

• [HTH] = Need Hans's or Taco's Help

Different remarks about gnuplot development

Notes

Hans's note

Once we have lua in place it should not be that difficult to make a mechanism that works as follows:

• context calls gnuplot and opens a socket
• and starts waiting for gp to finish
• when gnuplot needs dimensions it talks back via the socket
• tex executes the command send by the socket
• etc

it needs some thinking but i think that it is possible

closed curves in parametric plots

• it's probably not seen that easy, but if you want a circle with --cycle, set trange [0:2*pi]