我遇到了一个问题
程序包 pgf 错误：没有已知的形状名称
但我不知道它出了什么问题，如何修复它？有人能帮助我吗？
我的代码如下：
\documentclass{minimal}
\usepackage{tikz}
\usepackage{verbatim}
\usepackage{CJKutf8}
\usetikzlibrary{shapes}
\usepackage{amsmath}
\usepackage{xspace}
\newcommand{\A}{\ensuremath{\mathcal{A}}\xspace}
\newcommand{\B}{\ensuremath{\mathcal{B}}\xspace}
\newcommand\pa[1]{\ensuremath{\left(#1\right)}}
\begin{document}
\begin{CJK}{UTF8}{gbsn}
\begin{tikzpicture}[
grow=right,
level 1/.style={sibling distance=.5cm,level distance=5.2cm},
level 2/.style={sibling distance=3.5cm, level distance=3.7cm},
edge from parent/.style={very thick,draw=blue!40!black!60,
shorten >=5pt, shorten <=5pt},
edge from parent path={(\tikzparentnode.east) -- (\tikzchildnode.west)},
kant/.style={text width=2cm, text centered, sloped},
every node/.style={text ragged, inner sep=2mm},
punkt/.style={rectangle, rounded corners, shade, top color=white,
bottom color=blue!50!black!20, draw=blue!40!black!60, very
thick }
]
\node[punkt, text width=4.5em] {未知相关\\估计信息}
%Lower part lv1
child {
node[punkt, text width=4em]
{完全未知}
%----------------------------------------------
child {
node [punkt,rectangle split, rectangle split,
rectangle split parts=2] {
\textbf{非随机意义下：}
\nodepart{second}
相关估计信息未知但有界 }
edge from parent
node[below, kant, pos=.6] {}
}
child {
node [punkt, rectangle split, rectangle split parts=2]{
\textbf{随机意义下：}
\nodepart{second}
互协方差信息未知但有界
}
edge from parent
node[kant, above] {}}
edge from parent{
node[kant, below] {}}
}
%Upper part, lv1
child {
node[punkt, text width=4em] {部分未知}
%child 1
child {
node [punkt,rectangle split, rectangle split,
rectangle split parts=2] {
\textbf{非随机意义下：}
\nodepart{second}
相关估计信息未知但有界 }
edge from parent
node[below, kant, pos=.6] {}
}
%child 2
child {
node [punkt, rectangle split, rectangle split parts=2]{
\textbf{随机意义下：}
\nodepart{second}
互协方差信息未知但有界
}
edge from parent
node[kant, above] {}}
edge from parent{
node[kant, above] {}}
}
\end{tikzpicture}
\end{CJK}
\end{document}
答案1
树木厌恶真空。您不能在树的中间留下这样的空行。
另外，您需要一个分号来完成路径，并且需要改变兄弟距离以防止上下分支相互重叠。
我还删除了你的 MWE 中不需要的包（但显然你会希望它们出现在你的文档中）并更改了类。minimal是不是适合在示例中使用。standalone或者article是推荐的替代方案。
\documentclass[tikz,border=5pt]{standalone}
\usepackage{CJKutf8}
\usetikzlibrary{shapes}
\begin{document}
\begin{CJK}{UTF8}{gbsn}
\begin{tikzpicture}
[
grow=right,
level 1/.style={sibling distance=5.5cm,level distance=5.2cm},
level 2/.style={sibling distance=3.5cm, level distance=3.7cm},
edge from parent/.style={very thick,draw=blue!40!black!60, shorten >=5pt, shorten <=5pt},
edge from parent path={(\tikzparentnode.east) -- (\tikzchildnode.west)},
kant/.style={text width=2cm, text centered, sloped},
every node/.style={text ragged, inner sep=2mm},
punkt/.style={rectangle, rounded corners, shade, top color=white, bottom color=blue!50!black!20, draw=blue!40!black!60, very thick }
]
\node[punkt, text width=4.5em] {未知相关\\估计信息}
%Lower part lv1
child {
node[punkt, text width=4em]
{完全未知}
%----------------------------------------------
child {
node [punkt,rectangle split, rectangle split, rectangle split parts=2] {
\textbf{非随机意义下：}
\nodepart{second}
相关估计信息未知但有界}
edge from parent
node[below, kant, pos=.6] {}
}
child {
node [punkt, rectangle split, rectangle split parts=2]{
\textbf{随机意义下：}
\nodepart{second}
互协方差信息未知但有界
}
edge from parent
node[kant, above] {}}
edge from parent{
node[kant, below] {}}
}
%Upper part, lv1
child {
node[punkt, text width=4em] {部分未知}
%child 1
child {
node [punkt,rectangle split, rectangle split,
rectangle split parts=2] {
\textbf{非随机意义下：}
\nodepart{second}
相关估计信息未知但有界}
edge from parent
node[below, kant, pos=.6] {}
}
%child 2
child {
node [punkt, rectangle split, rectangle split parts=2]{
\textbf{随机意义下：}
\nodepart{second}
互协方差信息未知但有界
}
edge from parent
node[kant, above] {}}
edge from parent{
node[kant, above] {}}
}
;
\end{tikzpicture}
\end{CJK}
\end{document}
