% (find-angg "LATEX/2018pict2e.tex")
% (defun c () (interactive) (find-LATEXsh "lualatex -record 2018pict2e.tex"))
% (defun d () (interactive) (find-xpdfpage "~/LATEX/2018pict2e.pdf"))
% (defun b () (interactive) (find-zsh "bibtex 2018pict2e; makeindex 2018pict2e"))
% (defun e () (interactive) (find-LATEX "2018pict2e.tex"))
% (defun u () (interactive) (find-latex-upload-links "2018pict2e"))
% (find-xpdfpage "~/LATEX/2018pict2e.pdf")
% (find-sh0 "cp -v  ~/LATEX/2018pict2e.pdf /tmp/")
% (find-sh0 "cp -v  ~/LATEX/2018pict2e.pdf /tmp/pen/")
%   file:///home/edrx/LATEX/2018pict2e.pdf
%               file:///tmp/2018pict2e.pdf
%           file:///tmp/pen/2018pict2e.pdf
% http://angg.twu.net/LATEX/2018pict2e.pdf
\documentclass[oneside]{book}
\usepackage[colorlinks]{hyperref} % (find-es "tex" "hyperref")
%\usepackage[latin1]{inputenc}
\usepackage{amsmath}
\usepackage{amsfonts}
\usepackage{amssymb}
\usepackage{pict2e}
\usepackage{color}                % (find-LATEX "edrx15.sty" "colors")
\usepackage{colorweb}             % (find-es "tex" "colorweb")
%\usepackage{tikz}
%
% (find-dn6 "preamble6.lua" "preamble0")
\usepackage{proof}   % For derivation trees ("%:" lines)
\input diagxy        % For 2D diagrams ("%D" lines)
%\xyoption{curve}     % For the ".curve=" feature in 2D diagrams
%
\usepackage{edrx15}               % (find-angg "LATEX/edrx15.sty")
\input edrxaccents.tex            % (find-angg "LATEX/edrxaccents.tex")
\input edrxchars.tex              % (find-LATEX "edrxchars.tex")
\input edrxheadfoot.tex           % (find-dn4ex "edrxheadfoot.tex")
\input edrxgac2.tex               % (find-LATEX "edrxgac2.tex")
%
\begin{document}

\catcode`\^^J=10
\directlua{dednat6dir = "dednat6/"}
\directlua{dofile(dednat6dir.."dednat6.lua")}
\directlua{texfile(tex.jobname)}
\directlua{verbose()}
\directlua{output(preamble1)}
\def\expr#1{\directlua{output(tostring(#1))}}
\def\eval#1{\directlua{#1}}
\def\pu{\directlua{pu()}}

\directlua{dofile "edrxtikz.lua"} % (find-LATEX "edrxtikz.lua")
\directlua{dofile "edrxpict.lua"} % (find-LATEX "edrxpict.lua")
%L V.__tostring = function (v) return format("(%.3f,%.3f)", v[1], v[2]) end

% (find-es "tex" "pict2e")
% (find-es "tex" "picture-mode")
% (find-pict2epage 3 "\\usepackage")
% (find-pict2etext 3 "\\usepackage")

\edrxcolors
\unitlength=10pt

% (find-es "tex" "picture-mode")
% (find-es "tex" "picture-mode" "multiput")
% (find-kopkadaly4page (+ 12 289) "\\multiput(x,y)(x,y){num}{pic elem}")
% (find-kopkadaly4text (+ 12 289) "\\multiput(x,y)(x,y){num}{pic elem}")
% (find-es "tex" "vcenter")


\def\C{\circle*{0.5}}

a
\bhbox{%
\begin{picture}(4,6)(-1,-2)
\thinlines
{\color{blue}                          % Grid:
 \multiput(-1,-2)(1,0)5{\line(0,1){6}} % vertical lines
 \multiput(-1,-2)(0,1)7{\line(1,0){4}} % horizontal lines
}
\thicklines
\Line(-1,-2)(3,4) % Diagonal
\Line(-1, 0)(3,0) % Horizontal axis
\Line( 0,-2)(0,4) % Vertical axis
\put ( 1, 2){\C}
\put ( 1, 0){\oval[0.5](4,2)}
\end{picture}%
}
b
\bhbox{%
\begin{picture}(4,2)(-2,-1)
\put(0,0){\oval[0.5](4,2)}
\end{picture}%
}
c
%
% \def\myvcenter#1{$\vcenter{\hbox{#1}}$}%
\def\myvcenter#1{\ensuremath{\vcenter{\hbox{#1}}}}%
%
\bhbox{%
\myvcenter{%
\begin{picture}(6,2)(-3,-1)
\put(0,0){\oval[0.5](6,2)}
\end{picture}%
}%
}
d


% Lua-less version
% Use like this: \myoval(4,6)(2,3)[0.5]
% Args are: (diamx,diamy)(radx,rady)[curve]
\def\myoval(#1,#2)(#3,#4)[#5]{%
  \myvcenter{%
    \begin{picture}(#1,#2)(-#3,-#4)
      \put(0,0){\oval[#5](#1,#2)}
    \end{picture}%
  }}

e \bhbox{\myoval(4,6)(2,3)[0.5]} f

% (find-LATEXgrep "grep -nH -e place *.tex")
% (find-LATEXgrep "grep -nH -e midpoint *.tex")

%D diagram ??
%D 2Dx     100 +30
%D 2D  100 A   RA
%D 2D
%D 2D  +20 LB  B
%D 2D
%D
%D (( A RA ->
%D    B LB ->
%D    A LB midpoint .TeX= \myoval(4,6)(2,3)[0.5] place
%D    B RA midpoint .TeX= HI                   place
%D
%D ))
%D enddiagram
%D
$$\pu
  \diag{??}
$$




%L -- Lua version, obsolete
%L mypictoval = function (radx, rady, curve)
%L     fmt = [[
%L       \myvcenter{%%
%L         \begin{picture}(%d,%d)(%d,%d)
%L           \put(0,0){\oval[%d](%d,%d)}
%L         \end{picture}%%
%L       }]]
%L     return format(fmt, 2*radx, 2*rady, -radx, -rady, curve, 2*radx, 2*rady)
%L   end
%L print(mypictoval(3, 2, 0.5))
\pu

\def\mypictoval#1{\expr{mypictoval(#1)}}





\bhbox{hello}

\end{document}

% Local Variables:
% coding: utf-8-unix
% End:
