在森林中水平移动子树和子树

Question

我正在尝试使用包绘制树形图forest。为了使图表适合页边距，我将子树向下移动NastranBulkData 对象，如您在图片中看到的。然而，NastranCaseControl 对象和NastranBulkData 对象导致图表无法适应页边距。

我怎样才能删除这些空白，以便NastranBulkData 对象和NastranSubcaseResult 对象向左移动？理想情况下，它们应该以这样的方式移动，即与其他 Nastran 案例控制条目相关的对象以及从NastranBulkData 对象等于树中子项之间的分离（但我不太在意这个）。

梅威瑟：

% Class
\documentclass[10pt]{article}

% Set paper geometry
\usepackage[letterpaper,margin=1in]{geometry}

% Forest package
\usepackage[edges]{forest}

% Document
\begin{document}
    \begin{figure}[hbt!]
        \centering
        \begin{forest}
            for tree={              % style of tree nodes
                draw, semithick, rounded corners,
                align = center,
                inner sep = 2mm,
                anchor=north,
                %                     styles of tree
                forked edge,             
                l sep = 6mm,    
                fork sep = 3mm,     
            }
            [\texttt{NastranAnalysis}\\object
            [\texttt{NastranExecutiveControl}\\object
            [Solution\\sequence \#]
            ]
            [\texttt{NastranCaseControl}\\object
            [\texttt{NastranSubcase}\\object array]
            [Objects related to\\other \textsc{Nastran}\\case control entries]
            ]
            [\texttt{NastranBulkData}\\object
            [\texttt{Grid}\\object array, fork sep=3cm, l*=5, name=grid]
            [Objects related to other \\\textsc{Nastran} bulk data cards, fork sep=3cm, l*=5]
            [\texttt{NastranPart}\\object array, fork sep=3cm, l*=5
            [\texttt{NastranPart}\\object 1]
            [\texttt{NastranPart}\\object 2]
            [\dots]
            ]
            ]
            [\texttt{NastranSubcaseResult}\\object array]
            ]
        \end{forest}
    \end{figure}
\end{document}

Answer 1

请尝试以下操作：

\documentclass[10pt]{article}
% Set paper geometry
\usepackage[letterpaper,margin=1in]{geometry}
% Forest package
\usepackage[edges]{forest}

% Document
\begin{document}
    \begin{figure}[hbt!]
        \centering
        \begin{forest}
            for tree={              % style of tree nodes
                draw, semithick, rounded corners,
                font=\small,        % <--- 
                align = center,
                inner sep = 2mm,
                anchor=north,
                %                     styles of tree
                forked edge,
                s sep = 2mm,
                l sep = 6mm,
                fork sep = 3mm,
            }
[\texttt{NastranAnalysis}\\object
    [\texttt{NastranExecutiveControl}\\object
        [Solution\\sequence \#]
    ]
    [\texttt{NastranCaseControl}\\object
        [\texttt{NastranSubcase}\\object array]
        [Objects related to\\other \textsc{Nastran}\\case control entries]
    ]
    [\texttt{NastranBulkData}\\object
        [, l*=4,coordinate
            [\texttt{Grid}\\object array]
            [Objects related to other \\\textsc{Nastran} bulk data cards]
            [\texttt{NastranPart}\\object array,
                [\texttt{NastranPart}\\object 1]
                [\texttt{NastranPart}\\object 2]
                [\dots]
            ]
        ]
    ]
    [\texttt{NastranSubcaseResult}\\object array]
]
        \end{forest}
    \end{figure}
\end{document}

在代码中添加了节点为的附加级别coordinate。字体大小也减小为\small。一个选项是减小inner sep到 1mm 并使用正常字体大小。

（红线表示文本区域边框）

Answer 2

在森林中移动节点的可靠方法是使用密钥before computing xy。（我还添加了calign child=2以避免扭结。）

\documentclass[10pt]{article}

% Set paper geometry
\usepackage[letterpaper,margin=1in,showframe]{geometry}

% Forest package
\usepackage[edges]{forest}

% Document
\begin{document}
    \begin{figure}[hbt!]
        \centering
        \begin{forest}
            for tree={              % style of tree nodes
                draw, semithick, rounded corners,
                align = center,
                inner sep = 2mm,
                anchor=north,
                %                     styles of tree
                forked edge,             
                l sep = 6mm,    
                fork sep = 3mm,s sep=0.35em
            }
            [\texttt{NastranAnalysis}\\object
            [\texttt{NastranExecutiveControl}\\object
            [Solution\\sequence \#]
            ]
            [\texttt{NastranCaseControl}\\object
            [\texttt{NastranSubcase}\\object array]
            [Objects related to\\other \textsc{Nastran}\\case control entries]
            ]
            [\texttt{NastranBulkData}\\object,before computing
            xy={s+=-9em},calign child=2     
            [\texttt{Grid}\\object array, fork sep=3cm, l*=5, name=grid]
            [Objects related to other \\\textsc{Nastran} bulk data cards, fork sep=3cm, l*=5]
            [\texttt{NastranPart}\\object array, fork sep=3cm, l*=5
            [\texttt{NastranPart}\\object 1]
            [\texttt{NastranPart}\\object 2]
            [\dots]
            ]
            ]
            [\texttt{NastranSubcaseResult}\\object array,
            before computing xy={s+=-9em}]
            ]
        \end{forest}
    \end{figure}
\end{document}

该showframe选项用于显示生成的树确实适合页面，当然您希望将其放置在文档中。