我对 tikz 包完全陌生，但我要为我的海报制作一个流程图。我使用了此提供的模板关联
我只是修改了一些我能理解的部分，源代码是
% Author: Rasmus Pank Roulund
\documentclass{minimal}
\usepackage{tikz}
\usetikzlibrary{calc,trees,positioning,arrows,chains,shapes.geometric,%
decorations.pathreplacing,decorations.pathmorphing,shapes,%
matrix,shapes.symbols}
\tikzset{
>=stealth',
punktchain/.style={
rectangle,
rounded corners,
% fill=black!10,
draw=black, very thick,
text width=10em,
minimum height=3em,
text centered,
on chain},
line/.style={draw, thick, <-},
element/.style={
tape,
top color=white,
bottom color=blue!50!black!60!,
minimum width=8em,
draw=blue!40!black!90, very thick,
text width=10em,
minimum height=3.5em,
text centered,
on chain},
every join/.style={->, thick,shorten >=1pt},
decoration={brace},
tuborg/.style={decorate},
tubnode/.style={midway, right=2pt},
}
\begin{document}
\begin{tikzpicture}
[node distance=.8cm,
start chain=going below,]
\node[punktchain, join] (intro) {Raw Signal};
\node[punktchain, join] (probf) {Pre-pro1};
\node[punktchain, join] (investeringer) {pre-pro2};
\node[punktchain, join] (perfekt) {feature extract};
\node[punktchain, join, ] (emperi) {model fitting};
\node[punktchain, join,] (disk) {training};
\node[punktchain, join,] (makro) {testing};
\node (asym) [punktchain ] {Abnormal};
\begin{scope}[start branch=venstre,
%We need to redefine the join-style to have the -> turn out right
every join/.style={-, thick, shorten <=1pt}, ]
\end{scope}
\begin{scope}[start branch=hoejre,]
\node (finans) [punktchain, on chain=going right] {Normal };
\end{scope}
% Now that we have finished the main figure let us add some "after-drawings"
%% First, let us connect (finans) with (disk). We want it to have
%% square corners.
%\draw[|-,-|,->, thick,] (finans.south) |-+(0,-1em)-| (disk.north);
% Now, let us add some braches.
%% No. 1
%% No. 2
\draw[tuborg, decoration={brace}] let \p1=(disk.north), \p2=(makro.south) in
($(2, \y1)$) -- ($(2, \y2)$) node[tubnode] {Classification};
%% No. 3
\draw[tuborg, decoration={brace}] let \p1=(perfekt.north), \p2=(emperi.south) in
($(2, \y1)$) -- ($(2, \y2)$) node[tubnode] {Feature Selection};
\draw[tuborg, decoration={brace}] let \p1=(probf.north), \p2=(investeringer.south) in
($(2, \y1)$) -- ($(2, \y2)$) node[tubnode] {Data Preprocessing};
\end{tikzpicture}
\end{document}
%%% Local Variables:
%%% mode: latex
%%% TeX-master: t
%%% End:
输出是
这是我想要的东西；
- 将两个框居中（正常）（异常）
从上方框指向（正常）和（异常）的箭头
将盒子（训练）和（测试）水平放置，不带箭头。
其他建议让它看起来很专业：比如颜色......
我手绘了一张图来阐明我的想法。谢谢。
答案1
我自己也必须做类似的事情，所以这是一个很好的锻炼。
我相信 Tikz 专家会找到更优雅的代码，但基于这个例子http://www.texample.net/tikz/examples/labs-schema/这是我所取得的成就：
\documentclass[11pt]{article}
\usepackage{tikz}
\usetikzlibrary{shadows,arrows,positioning}
% Define the layers to draw the diagram
\pgfdeclarelayer{background}
\pgfdeclarelayer{foreground}
\pgfsetlayers{background,main,foreground}
% Define block styles
\tikzstyle{materia}=[draw, fill=blue!20, text width=6.0em, text centered,
minimum height=1.5em,drop shadow]
\tikzstyle{etape} = [materia, text width=8em, minimum width=10em,
minimum height=3em, rounded corners, drop shadow]
\tikzstyle{texto} = [above, text width=6em, text centered]
\tikzstyle{linepart} = [draw, thick, color=black!50, -latex', dashed]
\tikzstyle{line} = [draw, thick, color=black!50, -latex']
\tikzstyle{ur}=[draw, text centered, minimum height=0.01em]
% Define distances for bordering
\newcommand{\blockdist}{1.3}
\newcommand{\edgedist}{1.5}
\newcommand{\etape}[2]{node (p#1) [etape]
{#2}}
% Draw background
\newcommand{\background}[5]{%
\begin{pgfonlayer}{background}
% Left-top corner of the background rectangle
\path (#1.west |- #2.north)+(-0.5,0.25) node (a1) {};
% Right-bottom corner of the background rectanle
\path (#3.east |- #4.south)+(+0.5,-0.25) node (a2) {};
% Draw the background
\path[fill=yellow!20,rounded corners, draw=black!50, dashed]
(a1) rectangle (a2);
\path (#3.east |- #2.north)+(0,0.25)--(#1.west |- #2.north) node[midway] (#5-n) {};
\path (#3.east |- #2.south)+(0,-0.35)--(#1.west |- #2.south) node[midway] (#5-s) {};
\path (#3.east |- #2.north)+(0.7,0)--(#3.east |- #4.south) node[midway] (#5-w) {};
\end{pgfonlayer}}
\newcommand{\transreceptor}[3]{%
\path [linepart] (#1.east) -- node [above]
{\scriptsize #2} (#3);}
\begin{document}
\begin{tikzpicture}[scale=0.7,transform shape]
% Draw diagram elements
\path \etape{1}{Raw signal};
\path (p1.south)+(0.0,-1.5) \etape{2}{Pre-1};
\path (p2.south)+(0.0,-1.0) \etape{3}{Pre-2};
\path (p3.south)+(0.0,-1.5) \etape{4}{Feature extract};
\path (p4.south)+(0.0,-1.0) \etape{5}{Model fitting};
\path (p5.south)+(-3.0,-2.0) \etape{6}{training};
\path (p5.south)+(3.0,-2.0) \etape{7}{testing};
\node [below=of p5] (p6-7) {};
\path (p6.south)+(0.0,-2.0) \etape{8}{normal};
\path (p7.south)+(0.0,-2.0) \etape{9}{abnormal};
\node [below=of p6-7] (p8-9) {};
% Draw arrows between elements
\path [line] (p1.south) -- node [above] {} (p2);
\path [line] (p2.south) -- node [above] {} (p3);
\path [line] (p3.south) -- node [above] {} (p4);
\path [line] (p4.south) -- node [above] {} (p5);
\background{p2}{p2}{p3}{p3}{bk1}
\background{p4}{p4}{p5}{p5}{bk2}
\background{p6}{p6}{p7}{p7}{bk3}
\path [line] (p5.south) -- node [above] {} (bk3-n);
\path [line] (bk3-s) -- node [above] {} (p8);
\path [line] (bk3-s) -- node [above] {} (p9);
\path (bk1-w)+(+6.0,0) node (ur1)[ur] {};
\path (bk2-w)+(+6.0,0) node (ur2)[ur] {};
\path (bk3-w)+(+3.0,0) node (ur3)[ur] {};
\transreceptor{bk1-w}{pre processing}{ur1};
\transreceptor{bk2-w}{Feature selection}{ur2};
\transreceptor{bk3-w}{classification}{ur3};
\end{tikzpicture}
\end{document}