X-Git-Url: https://melusine.eu.org/syracuse/G/git/?a=blobdiff_plain;f=doc%2Fluamesh-doc.tex;h=e59f7fc0889ea5a6618ae2beca1ffeb5807b5881;hb=5921eb363f3873328cc96cb4321b2f6387b8f3f5;hp=5746bb28224f222d331517c961a9a9d3122a31a9;hpb=c25242309db6a2554651e368376b07d30afc3601;p=delaunay.git

diff --git a/doc/luamesh-doc.tex b/doc/luamesh-doc.tex
index 5746bb2..e59f7fc 100644
--- a/doc/luamesh-doc.tex
+++ b/doc/luamesh-doc.tex
@@ -9,10 +9,42 @@
 
 \documentclass{lltxdoc}
 \usepackage{tcolorbox}
+\usepackage{xargs}
+\usepackage{enumitem}
+
+
 \title{\Verb+luamesh+: compute and draw meshes with \lualatex}
 \author{Maxime Chupin \email{mc@melusine.eu.org}}
 \date{\today}
 
+\newcommand*\commande{\noindent\hspace{-30pt}%
+  \SaveVerb[aftersave={%
+   \UseVerb{Vitem}
+  }%
+  ]{Vitem}}
+
+\newcommand*\textme[1]{\textcolor{black}{\rmfamily\textit{#1}}}
+\newcommand*\meta[1]{% % meta
+  \textme{\ensuremath{\langle}#1\ensuremath{\rangle}}}
+\newcommand*\optstar{% % optional star
+  \meta{\ensuremath{*}}\xspace}
+\DefineShortVerb{\|}
+
+\setlength{\fboxsep}{2pt}
+\fvset{%
+  codes={\catcode`\«\active \catcode`\×\active },
+  defineactive={\makefancyog\makefancytimes},
+  formatcom=\color{red},
+  frame=single
+}
+% rendre «...» équivalent à \meta{...}
+{\catcode`\«\active
+  \newcommandx\makefancyog[0][addprefix=\global]{%
+    \def«##1»{\meta{##1}}}}
+% rendre × équivalent à \optstar
+{\catcode`\×\active
+  \newcommandx\makefancytimes[0][addprefix=\global]{%
+    \def×{\optstar{}}}}
 
 
 \tcbuselibrary{listings,breakable}
@@ -67,12 +99,16 @@
 
 \newcommand\luamesh{\Verb+luamesh+\xspace}
 
+\newenvironment{optionsenum}[1][]
+  {\begin{description}[font=\color{red}\ttfamily]}
+    {\end{description}}
+
 \begin{document}
 
 \maketitle
 
 \begin{abstract}
-  The package \Verb|luamesh| allows to compute and draw triangulation
+  The package \Verb|luamesh| allows to compute and draw 2D triangulation
   of Delaunay. The algorithm is written with lua, and depending of the
   choice of the ``engine'', the draw is done by MetaPost (with
   \Verb|luamplib|) or by \Verb|tikz|.
@@ -109,17 +145,131 @@ with
 \usepackage{luamesh}
 \end{latexcode}
 
+\subsection{Dependencies}
+
+This package is built upon two main packages to draw the
+triangulations :
+\begin{enumerate}
+\item \Verb+luamplib+ to use MetaPost via the \luatex library
+  \Verb+mplib+;
+\item or \Verb+tikz+.
+\end{enumerate}
+We will see how to choose between these two \emph{drawing engines}.
 
-\section{The Macros}
+Moreover, the following packages are necessary:
+\begin{enumerate}
+\item \Verb+xkeyval+ to manage the optional arguments;
+\item \Verb+xcolor+ to use colors (needed by \Verb+luamplib+);
+\item \Verb+ifthen+ to help the programming with \TeX.
+\end{enumerate}
 
 
+\section{The Basic Macros}
+
+If you want to use this package, you must compile your document with
+\Verb+lualatex+:
+
+\begin{commandshell}
+  lualatex mylatexfile.tex
+\end{commandshell}
+
+Let us recall that this package provides macros to draw two
+dimensional triangulations (or meshes).
 
 \subsection{Draw a Complete Mesh}
 
+\commande|\buildMeshBW[«options»]{«list of points» or «file name»}|\medskip
+
+This macro produce the Delaunay triangulation (using the Bowyer and
+Watson algorithm) of the given \meta{list of points}. The list of
+points must be given in the following way :
+\begin{center}
+  \verb+(x1,y1);(x2,y2);(x3,y3);...;(xn,yn)+
+\end{center}
+
+\begin{Exemple}
+  \buildMeshBW{(0.3,0.3);(1.5,1);(4,0);(4.5,2.5);(1.81,2.14);(2.5,0.5);(2.8,1.5)}
+\end{Exemple}
+
+\subsubsection{The Options}
+
+There are several options to customize the drawing.
+\begin{optionsenum}
+\item[mode = int (default) or ext:] this option allows to
+  use either the previously described set of point in the argument, or
+  a file, containing, line by line (2 columns), the points. Such a
+  file looks like :
+\begin{verbatim}
+x1  y1
+x2  y2
+x3  y3
+...
+xn yn
+\end{verbatim}
+\item[bbox = none (default) or show:] this option allows to draw the
+  added points to form a \emph{bounding box}\footnote{The bounding
+    box is defined by four points place at 15\% around the box
+    defined by $(x_{\min},y_{\min})$, $(x_{\min},y_{\max})$,
+    $(x_{\max},y_{\max})$, and $(x_{\min},y_{\max})$.} and the corresponding
+  triangulation. By default, these triangles are removed at the end of
+  the algorithm.
+\item[color = \meta{value} (default: black):] The color of the
+  drawing.
+\item[colorBbox = \meta{value} (default: black):] The color of the
+  drawing for the elements (points and triangles) belonging to the
+  bounding box.
+\item[print = none (default) or points:] To label the vertices of the
+  triangulations with an adding dot.
+\item[meshpoint = \meta{value} (default: P):] The letter(s) used to
+  label the vertices of the triangulation. It is include in the math
+  mode delimiters \Verb+$...$+. The bounding box points are labeled
+  with a star exponent, and numbered from 1 to 4.
+\item[tikz (boolean, default:false):] By default, this boolean is set
+  to \Verb+false+, and MetaPost (with \Verb+luamplib+) is used to draw
+  the picture. With this option, it is \Verb+tikz+ the \textit{drawing
+    engine}.
+\item[scale = \meta{value} (default: 1cm):] The scale option defines
+  the scale at which the picture is draw (the same for the two
+  axis). It must contain the unit of length (cm,
+  pt, etc.).
+\end{optionsenum}
+
+To illustrate the options, let us show you an example. We consider a
+file \Verb+mesh.txt+:
+\begin{verbatim}
+0.3    0.3
+1.5    1
+4      0
+4.5    2.5
+1.81   2.14
+2.5    0.5
+2.8    1.5
+\end{verbatim}
+\begin{Exemple}
+  \buildMeshBW[%
+  tikz,
+  mode = ext,
+  bbox = show,
+  color = red,
+  colorBbox = blue!30,
+  print = points,
+  meshpoint = x,
+  scale = 1.3cm,
+  ]{mesh.txt}
+\end{Exemple}
+
 \subsection{Draw the Set of Points}
 
+\commande|\tracePointsMesh[«options»]{«list of points» or «file name»}|
+
+
 \subsection{Draw a Step of the Bowyer and Watson Algorithm}
 
+\commande|\meshAddPointBW[«options»]{«list of points» or «file name»}{«point» or «number of line»}|
+
+
+\section{The \emph{inc} Macros}
+
 \section{Gallery of Examples}
 
 \end{document}