在横向页面上居中放置两个 tikzpicture 子浮点数

Question

我想将两个 tikzpictures 放在横向页面上的自己的 subfloat 中。在我的示例代码中，第二个时间线的开始位置发生了偏移。您可以在 picture 中看到转变。我想让两条时间线的起点在同一条水平线上。

\documentclass[a4paper,11pt,smallchapters,blue,extramargin,lnum]{article}
\usepackage{lscape}
\usepackage{subfig}
\usepackage{graphicx}
\usepackage{tikz}
\begin{document}

\begin{landscape}
    \vspace*{\fill}
    \begin{figure}[h]
        \begin{center}
            \subfloat[Situation 1 \label{fig:situationen-2.impl-exp3:situation1}] {
                \begin{tikzpicture}
                    % draw horizontal line   
                    \draw (0,0) -- (15,0);

                    % draw vertical lines
                    \foreach \x in {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15}
                        \draw (\x cm,3pt) -- (\x cm,-3pt);

                    % draw nodes
                    \draw (0,0) node[below=3pt] {$ 0s $} node[above=15pt] {Raspberry Pi} node[above=1pt] {sendet};
                    \draw (10,0) node[below=3pt] {$ 50s $} node[above=12pt] {Beginn} node[above=1pt] {Zustandswechsel};
                    \draw (15,0) node[below=3pt] {$ 150s $} node[above=3pt] {Ende};  
                \end{tikzpicture}
            } 
            \newline
            \subfloat[Situation 2 \label{fig:situationen-2.impl-exp3:situation2}] {
                \begin{tikzpicture}
                    % draw horizontal line   
                    \draw (0,0) -- (15,0);

                    % draw vertical lines
                    \foreach \x in {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15}
                        \draw (\x cm,3pt) -- (\x cm,-3pt);

                    % draw nodes
                    \draw (0,0) node[below=3pt] {$ 0s $} node[above=15pt] {Raspberry Pi} node[above=1pt] {sendet};
                    \draw (5,0) node[below=3pt] {$ 50s $} node[above=12pt] {Beginn} node[above=1pt] {Zustandswechsel};
                    \draw (10,0) node[below=3pt] {$ 100s $} node[above=12pt] {Senderate} node[above=1pt] {kleiner};
                    \draw (15,0) node[below=3pt] {$ 150s $} node[above=3pt] {Ende};  
                \end{tikzpicture}
            } 
            \caption{Untersuchte Situationen in Experiment 3 der 2.Implementierung} \label{fig:situationen-2.impl-exp2}
        \end{center}
    \end{figure}
    \vspace*{\fill}
\end{landscape}

\end{document}

Answer 1

问题是由居中文本和来自 \newline 的强制换行符的组合引起的。您可以通过简单地留下一个空行来开始一个新段落来避免这种情况：

\documentclass[a4paper,11pt,smallchapters,blue,extramargin,lnum]{article}
\usepackage{lscape}
\usepackage{subfig}
\usepackage{graphicx}
\usepackage{tikz}
\begin{document}

\begin{landscape}
    \vspace*{\fill}
    \begin{figure}[h]
        \centering
%        \begin{center}
            \subfloat[Situation 1 \label{fig:situationen-2.impl-exp3:situation1}] {
                \begin{tikzpicture}
                    % draw horizontal line   
                    \draw (0,0) -- (15,0);

                    % draw vertical lines
                    \foreach \x in {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15}
                        \draw (\x cm,3pt) -- (\x cm,-3pt);

                    % draw nodes
                    \draw (0,0) node[below=3pt] {$ 0s $} node[above=15pt] {Raspberry Pi} node[above=1pt] {sendet};
                    \draw (10,0) node[below=3pt] {$ 50s $} node[above=12pt] {Beginn} node[above=1pt] {Zustandswechsel};
                    \draw (15,0) node[below=3pt] {$ 150s $} node[above=3pt] {Ende};  
                \end{tikzpicture}
            } 


            \subfloat[Situation 2 \label{fig:situationen-2.impl-exp3:situation2}] {
                \begin{tikzpicture}
                    % draw horizontal line   
                    \draw (0,0) -- (15,0);

                    % draw vertical lines
                    \foreach \x in {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15}
                        \draw (\x cm,3pt) -- (\x cm,-3pt);

                    % draw nodes
                    \draw (0,0) node[below=3pt] {$ 0s $} node[above=15pt] {Raspberry Pi} node[above=1pt] {sendet};
                    \draw (5,0) node[below=3pt] {$ 50s $} node[above=12pt] {Beginn} node[above=1pt] {Zustandswechsel};
                    \draw (10,0) node[below=3pt] {$ 100s $} node[above=12pt] {Senderate} node[above=1pt] {kleiner};
                    \draw (15,0) node[below=3pt] {$ 150s $} node[above=3pt] {Ende};  
                \end{tikzpicture}
            } 
            \caption{Untersuchte Situationen in Experiment 3 der 2.Implementierung} \label{fig:situationen-2.impl-exp2}
%        \end{center}
    \end{figure}
    \vspace*{\fill}
\end{landscape}

\end{document}

（我使用 \centering 而不是 center 环境来避免额外的垂直间距，但对于您的用例来说这并不重要）

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