表格内的垂直对齐

Question

我的 MWE：

\documentclass{article}
\usepackage{lscape}

\usepackage{booktabs}% http://ctan.org/pkg/booktabs
\newcommand{\tabitem}{~~\llap{\textbullet}~~}

\begin{document}

\begin{landscape}

\begin{table}[ht]
\small
\begin{tabular}{|p{4cm}|p{9cm}|p{8.2cm}|}
\hline
\textbf{Control Method}                         & \textbf{Advantages}        & \textbf{Disadvantages}                                                                                            \\ \hline
    Conventional NDI with linear PID-control        & \begin{tabular}[c]{@{}l@{}} \tabitem The absence of any need for gain scheduling. \\ \tabitem Decoupling between the input-output relations. \end{tabular}                                                                                                                 & \begin{tabular}[c]{@{}l@{}}\tabitem Model and parameters must be accurately known. \\ \tabitem Complete knowledge of the states is required. \\ \tabitem Dual loop design assumes time-scale separation. \end{tabular}     \\ \hline

\end{tabular}
\end{table}

\end{landscape}

\end{document}

结果：

现在，我该如何垂直对齐包含“带线性 PID 控制的传统 NDI”的单元格？我的表格实际上非常大，我必须使第一列中的所有条目垂直对齐。

Answer 1

您已强制内部表格居中对齐，但您希望顶部对齐。

\documentclass{article}
\usepackage{lscape}

\usepackage{booktabs}% http://ctan.org/pkg/booktabs
\newcommand{\tabitem}{~~\llap{\textbullet}~~}


\begin{document}

\begin{landscape}

\begin{table}[ht]
\small
\begin{tabular}{|p{4cm}|p{9cm}|p{8.2cm}|}
\hline
\textbf{Control Method}                         & \textbf{Advantages}        & \textbf{Disadvantages}                                                                                            \\ \hline
    Conventional NDI with linear PID-control        & \begin{tabular}[t]{@{}l@{}} \tabitem The absence of any need for gain scheduling. \\ \tabitem Decoupling between the input-output relations. \end{tabular}                                                                                                                 & \begin{tabular}[t]{@{}l@{}}\tabitem Model and parameters must be accurately known. \\ \tabitem Complete knowledge of the states is required. \\ \tabitem Dual loop design assumes time-scale separation. \end{tabular}     \\ \hline

\end{tabular}
\end{table}

\end{landscape}

\end{document}

Answer 2

这似乎违反直觉，但将列底部对齐是可行的。我已修改您的示例，包括array包并将表规范更改为\begin{tabular}{|b{4cm}|p{9cm}|p{8.2cm}|}。

\documentclass{article}
\usepackage{lscape}
\usepackage{array}
\usepackage{booktabs}% http://ctan.org/pkg/booktabs
\newcommand{\tabitem}{~~\llap{\textbullet}~~}

\begin{document}

\begin{landscape}

\begin{table}[ht]
\small
\begin{tabular}{|b{4cm}|p{9cm}|p{8.2cm}|}

\hline
\textbf{Control Method}                         & \textbf{Advantages}        & \textbf{Disadvantages}                                                                                            \\ \hline
    Conventional NDI with linear PID-control        & \begin{tabular}[c]{@{}l@{}} \tabitem The absence of any need for gain scheduling. \\ \tabitem Decoupling between the input-output relations. \end{tabular}                                                                                                                 & \begin{tabular}[c]{@{}l@{}}\tabitem Model and parameters must be accurately known. \\ \tabitem Complete knowledge of the states is required. \\ \tabitem Dual loop design assumes time-scale separation. \end{tabular}     \\ \hline

\end{tabular}
\end{table}

\end{landscape}

\end{document}