我想画一棵树，如图所示：
请问你能帮帮我吗？
我目前拥有的：
\documentclass{article}
\usepackage[utf8]{inputenc}
\usepackage[frenchb]{babel}
\usepackage{tikz}
\usepackage{tikz-qtree}
\usetikzlibrary{trees} % this is to allow the fork right path
\usetikzlibrary{scopes}
\usetikzlibrary{babel}
\begin{document}
\begin{figure}
\centering
\begin{tikzpicture}[grow'=right,level distance= 4.5cm,sibling distance=5pt]
\tikzset{edge from parent/.style={thick, draw, edge from parent fork right},every tree node/.style={draw,minimum width=3cm,text width=3cm,align=center}}
\Tree
[.\node [name=CG,xshift=-5cm,yshift=0cm,draw,minimum width=4cm,text width=4cm,align=center]{\textbf{Création de la géométrie}} ;
[.\node [xshift=-4.5cm]{Fichier CAO} ; ]
[.\node [xshift=-4.5cm]{Points (x,y,z)} ; ]
[.\node [xshift=-4.5cm]{Fonction f(x,y,z)} ; ]
]
\begin{scope}[yshift=-1.5cm,grow'=right]
\Tree
[.\node [yshift=-0.2cm,below of=CG,draw,minimum width=4cm,text width=4cm,align=center] (GL) {\textbf{Génération des limites}};
[.\node [xshift=-4cm,yshift=-1.2cm,draw,minimum width=4cm,text width= 4cm] {Plan de symétrie} ; ]
[.\node [xshift=-4cm,yshift=-1.4cm,draw,minimum width=4cm,text width= 4cm]{Bords d'E/S} ; ]
[.\node [xshift=-4cm,yshift=-1.6cm,draw,minimum width=4cm,text width= 4cm]{Bords périodiques} ; ]
[.\node [xshift=-4cm,yshift=-1.8cm,draw,minimum width=4cm,text width= 4cm]{Bords solides} ; ]
]
\end{scope}
\begin{scope}[yshift=-3.2cm,grow'=right]
\Tree
[.\node [yshift=-0.8cm,below of=GL,draw,minimum width=4cm,text width=4cm,align=center] (GM){\textbf{Génération de maillage} } ;
[.\node [xshift=-4cm,yshift=-2.4cm,draw,minimum width=4cm,text width= 4cm] (ST) {Structuré}; ]
[.\node [xshift=-4cm,yshift=-3cm,draw,minimum width=4cm,text width= 4cm] {Non-structuré} ; ]
[.\node [xshift=-4cm,yshift=-3.4cm,draw,minimum width=4cm,text width= 4cm] {hybride}; ]
]
\end{scope}
\begin{scope}[yshift=-5.6cm,grow'=right]
\Tree
[.\node [yshift=-0.8cm,below of=GL,draw,minimum width=4cm,text width=4cm,align=center] (AM){\textbf{Adaptation de maillage} } ;
[.\node [xshift=-4cm,yshift=-2.8cm,draw,minimum width=6cm,text width= 6cm] (ST) {Adaptation de la géométrie}; ]
[.\node [xshift=-4cm,yshift=-3cm,draw,minimum width=6cm,text width= 6cm] {Adaptation de la couche limite} ; ]
[.\node [xshift=-4cm,yshift=-3.2cm,draw,minimum width=6cm,text width= 6cm] {réglage de l'écoulement}; ]
]
\end{scope}
\draw[semithick,->] (CG)--(GL);
\draw[semithick,->] (GL)--(GM);
\draw[semithick,->] (GM)--(AM);
\end{tikzpicture}
\end{figure}
\end{document}
我还有这份小工作
