在LaTeX中利用preview宏包和tikz宏包生成单图pdf

 1 \documentclass{beamer}
 2 \usepackage{tikz}
 3 \usetikzlibrary{arrows,snakes,backgrounds}
 4 \usepackage[active,pdftex,tightpage]{preview}
 5 \PreviewEnvironment{tikzpicture}
 6 %设置tikz输出图像与页面之间的空白大小
 7 \setlength{\PreviewBorder}{0.5bp}
 8 \begin{document}
 9 \begin{frame}
10 \begin{tikzpicture}[->,>=stealth‘,shorten >=1pt,auto,node distance=1.5cm,
11   thick,main node/.style={circle,fill=blue!20,draw,font=\sffamily\Large\bfseries}]
12   \node[main node] (1) {no};
13   \node[main node] (2) [right of=1] {1};
14   \node[main node] (3) [right of=2] {no};
15   \node[main node] (4) [right of=3] {2};
16   \node[main node] (5) [right of=4] {no};
17   \node[main node] (6) [right of=5] {3};
18   \node[main node] (7) [right of=6] {no};
19 
20   \path[every node/.style={font=\sffamily\small}]
21      (1) edge [loop above] node {} (1)
22          edge node [right] {} (2)
23      (2) edge node [right] {} (3)
24          edge [bend right] node {} (4)
25      (3) edge [loop above] node {} (3)
26          edge node [right] {} (4)
27      (4) edge node [right] {} (5)
28          edge [bend right] node {} (6)
29      (5) edge [loop above] node {} (5)
30          edge node [right] {} (6)
31      (6) edge node [right] {} (7)
32      (7) edge [loop above] node {} (7);
33 \end{tikzpicture}
34 \end{frame}
35 
36 \end{document}