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TiKZ 生成不需要的空白

tag-icon • tag-icon tikz-pgf
TiKZ 生成不需要的空白

编辑：我确实编写了此文档：

\documentclass[DIV14,parskip=half-]{scrartcl}

\usepackage[utf8]{inputenc}
\usepackage[ngerman]{babel}
\usepackage[T1]{fontenc}

\usepackage{tikz}
\usepackage{tkz-euclide}
\usetkzobj{all}

\usepackage{showframe}

\begin{document}

\fbox{\begin{tikzpicture}
        \tkzDefPoint(0, 0){A}
        \tkzDefPoint(4, 0){B}
        \tkzDefPoint(6, 3.5){C}
        \tkzDefPoint(2, 3.5){D}
        \draw (0, 0) node[below left] {A} -- (4, 0) node[below right] {B} -- (6, 3.5) node[above right] {C} -- (2, 3.5) node[above left] {D} -- cycle;
        \tkzCircumCenter(A,B,D)
        \tkzGetPoint{O}
        \tkzDrawCircle(O,A)
        \tkzCircumCenter(A,C,D)
        \tkzGetPoint{O}
        \tkzDrawCircle(O,A)
\end{tikzpicture}}

\end{document}

并得到以下输出：

输出图像

这段代码，TiKZ 生成的图片高度几乎是需要的两倍。图片上方是一大片空白。它是从哪里来的？

原始代码：

\documentclass[DIV14,parskip=half-]{scrartcl}

\usepackage[utf8]{inputenc}
\usepackage[ngerman]{babel}
\usepackage[T1]{fontenc}

\usepackage{tikz}
\usepackage{tkz-euclide}
\usetkzobj{all}

\begin{document}

\begin{tikzpicture}
        \draw (0, 0) grid (10, 10);
        \tkzDefPoint(0, 0){A}
        \tkzDefPoint(4, 0){B}
        \tkzDefPoint(6, 3.5){C}
        \tkzDefPoint(2, 3.5){D}
        \draw (0, 0) node[below left] {A} -- (4, 0) node[below right] {B} -- (6, 3.5) node[above right] {C} -- (2, 3.5) node[above left] {D} -- cycle;
        \tkzCircumCenter(A,B,D)
        \tkzGetPoint{O}
        \tkzDrawCircle(O,A)
        \tkzCircumCenter(A,C,D)
        \tkzGetPoint{O}
        \tkzDrawCircle(O,A)
\end{tikzpicture}

\end{document}

答案1

不需要的空白来自命令\tkzCircumCenter(...)。使用不可见的路径来构造圆心。它放大了边界框。

您可以使用软件包修补此命令etoolbox

\usepackage{etoolbox}
\pretocmd\tkzCircumCenter{\begin{pgfinterruptboundingbox}}{}{}
\apptocmd\tkzCircumCenter{\end{pgfinterruptboundingbox}}{}{}

在此处输入图片描述

代码：

\documentclass{scrartcl}
\usepackage{tikz}
\usepackage{tkz-euclide}
\usetkzobj{all}

\usepackage{etoolbox}
\pretocmd\tkzCircumCenter{\begin{pgfinterruptboundingbox}}{}{}
\apptocmd\tkzCircumCenter{\end{pgfinterruptboundingbox}}{}{}

\begin{document}

\fbox{\begin{tikzpicture}
        \tkzDefPoint(0, 0){A}
        \tkzDefPoint(4, 0){B}
        \tkzDefPoint(6, 3.5){C}
        \tkzDefPoint(2, 3.5){D}
        \draw (0, 0) node[below left] {A} -- (4, 0) node[below right] {B} -- (6, 3.5) node[above right] {C} -- (2, 3.5) node[above left] {D} -- cycle;
        \tkzCircumCenter(A,B,D)
        \tkzGetPoint{O}
        \tkzDrawCircle(O,A)
        \tkzCircumCenter(A,C,D)
        \tkzGetPoint{O}
        \tkzDrawCircle(O,A)
\end{tikzpicture}}

\end{document}

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