Re: Treat TeX in plot text in a Matlab compatible matter with gnuplot enhanced mode

[Shai Ayal]

On Nov 19, 2007 3:42 PM, David Bateman <address@hidden> wrote:
> Shai Ayal wrote:
> > I have 2 comments:
> > 1) It's going to be really hard to live up to the features of the
> > gnuplot backend, and it keeps getting harder.
> > 2) Why do you use the string_property type for the interpreter
> > property and not radio_value?
> >
> Shai,
>
> Here is my updated version of this patch. It adds the \bf, \it modes
> etc, fixes a few incorrect symbols and correctly implements the super-
> and sub-scripts. The super- and sub-scripts were rather messy as gnuplot
> requires that the shorter of the two comes first to get the correct
> alignment. The definition of shorter is not obvious as the fonts might
> be proportional, nested {} and  there might be  non-printed characters
> like /fontsize{20} that need to be ignored.. I also added documentation
> and an example
>
> x = 0:0.01:3;
> plot(x,erf(x));
> hold on;
> plot(x,x,'r');
> axis([0, 3, 0, 1]);
> text(0.65, 0.6175, strcat('\leftarrow x = {2/\surd\pi', ...
> ' {\fontsize{16}\int_{\fontsize{8}0}^{\fontsize{8}x}}', ...
> ' e^{-t^2} dt} = 0.6175'))
>
> which demonstrates the capabilities of the patch to layout mathematical
> formula. I included your string_property, caseless_str patch in this
> patch to get rid of he conflict between our patches. So your patch
> shouldn't be applied, as its included here..

David,

thanks for merging my patch in. I didn't do yet it because I was not
sure it would be accepted (I changed the name of a class which touched
quite a lot of places).

Shai

> Regards
> David
>
> --
> David Bateman                                address@hidden
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>
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>
> 2007-11-19  David Bateman  <address@hidden>
>
>         * plot/drawnow.m (open_gnuplot_stream, init_gnuplot_stream):
>         Return whether the terminal supports enhanced text or not.
>         (drawnow:enhanced_term): New sub-function to determine is terminal
>         supported enhanced mode.
>         * plot/__go_draw_figure__.m: Accept enhanced flag and pass to
>         __go_draw_axes__.
>         * plot/__go_draw_axes__.m: Accept enhanced flag and munge text if
>         needed to support the enhanced mode.
>         * plot/print.m: Remove "enhanced" option as this is now treated in
>         drawnow.m.
>
> 2007-11-19  David Bateman  <address@hidden>
>
>         * graphics.h.in (class figure): Add __enhanced__ property to cache
>         whether the terminal supports enhanced mode. Add interpreter
>         property to all text classes, to determine the renderer for the
>         text.
>         * graphics.cc (class figure): ditto.
>
> 2007-11-19  Shai Ayal  <address@hidden>
>
>         * graphics.cc (string_properties): delete class
>         (property_name): rename class to caseless_str.
>         (radio_values::possible_vals): change type to caseless_str.
>
> 2007-11-19  David Bateman  <address@hidden>
>
>         * interpreter/plot.txi: Document the new text properties and the
>         TeX interpreter mode of text objects.
>         * interpreter/plotimages.m: Add an example for the TeX
>         interpreter.
>         * interpreter/Makefile.in (PLOTIMAGES): Add the TeX example
>
> 2007-11-19  David Bateman  <address@hidden>
>
>         * NEWS: Document the TeX interpreter mode and its limitations with
>         gnuplot 4.0.
>
>