更改 Prerex 图表中的颜色

Question

我如何将颜色从黄色改为灰色。另外，我不喜欢圆角框和粗边界。软件包文档也没有明确说明我必须做什么。

\documentclass{article}
\usepackage{prerex}

\begin{document}
\begin{chart}%\grid
            \reqhalfcourse 30,55:{}{Foundations\\of Physics}{}{Melon}
            \reqhalfcourse 10,45:{}{Functional\\Analysis}{}
            \reqhalfcourse -12,30:{}{Sheaf\\Theory}{}
            \reqhalfcourse -5,05:{}{Microlocal\\Sheaves}{}
            \reqhalfcourse 13,22:{}{Complex\\Analysis}{}
            \reqhalfcourse 20,30:{}{Operator\\Algebras}{}
            \reqhalfcourse 5,15:{}{Microlocal\\Analysis}{}
            \reqhalfcourse 40,40:{}{Operational\\Theories}{}
            \reqhalfcourse 20,00:{}{AQFT}{}
            \reqhalfcourse 40,27:{}{Quantum\\Foundations}{}
            \reqhalfcourse 58,27:{}{Evolution}{}
            \reqhalfcourse 58,18:{}{Thermodynamics}{}
            \reqhalfcourse 20,-20:{}{Quantum\\Gravity}{}
            
            \prereq 5,15,20,00:
            \prereq 10,45,20,30:
            \prereq 10,45,5,15:
            \prereqc 13,22,20,00:
            \prereqc -12,30,-5,05:
            \prereq -5,05,20,00:
            \prereq 58,18,58,27:
            \prereq 20,30,20,00: 
            \prereqc 20,00,20,-20;0:
            \prereqc 58,18,20,-20;0:
            \prereqc 58,27,20,-20;0:
            
            \coreq 13,22,40,40:
            \coreq 30,55,58,18:
            \coreq 20,30,40,27: 
            \coreq 30,55,20,00:
            \coreq 30,55,40,27:
            \coreq 40,27,20,00:
            \coreq 40,27,58,27:
            
            
            \coreq 40,40,40,27: 
            \coreq 40,40,20,00: 
            
            \begin{pgfonlayer}{courses}
                \draw[dashed] ([shift={(-2mm,-1mm)}]x40y27.south west) rectangle ([shift={(1mm,2mm)}]x58y27.north east);
            \end{pgfonlayer}
        \end{chart}
\end{document}

结果是：

Answer 1

该包prerex使用不同的方法来设置节点的默认外观。有些值存储在您可以重新定义的变量中（例如，\background背景颜色设置为yellow!15或不同的线宽），但其他内容（例如边框半径）或多或少都是硬编码的。

最直接且高度可定制的方法是将节点放在chart环境中scope然后使用常规 Ti 重新定义节点的外观钾Z 样式选项如下：

\documentclass{article}
\usepackage{prerex}

\begin{document}

\begin{chart}%\grid
    \begin{scope}[every rectangle node/.style={
        sharp corners,
        line width=0.6pt,
        fill=gray!15
    }]
        \reqhalfcourse 30,55:{}{Foundations\\of Physics}{}{Melon}
        \reqhalfcourse 10,45:{}{Functional\\Analysis}{}
        \reqhalfcourse -12,30:{}{Sheaf\\Theory}{}
        \reqhalfcourse -5,05:{}{Microlocal\\Sheaves}{}
        \reqhalfcourse 13,22:{}{Complex\\Analysis}{}
        \reqhalfcourse 20,30:{}{Operator\\Algebras}{}
        \reqhalfcourse 5,15:{}{Microlocal\\Analysis}{}
        \reqhalfcourse 40,40:{}{Operational\\Theories}{}
        \reqhalfcourse 20,00:{}{AQFT}{}
        \reqhalfcourse 40,27:{}{Quantum\\Foundations}{}
        \reqhalfcourse 58,27:{}{Evolution}{}
        \reqhalfcourse 58,18:{}{Thermodynamics}{}
        \reqhalfcourse 20,-20:{}{Quantum\\Gravity}{}
    \end{scope}
    
    \prereq 5,15,20,00:
    \prereq 10,45,20,30:
    \prereq 10,45,5,15:
    \prereqc 13,22,20,00:
    \prereqc -12,30,-5,05:
    \prereq -5,05,20,00:
    \prereq 58,18,58,27:
    \prereq 20,30,20,00: 
    \prereqc 20,00,20,-20;0:
    \prereqc 58,18,20,-20;0:
    \prereqc 58,27,20,-20;0:
    
    \coreq 13,22,40,40:
    \coreq 30,55,58,18:
    \coreq 20,30,40,27: 
    \coreq 30,55,20,00:
    \coreq 30,55,40,27:
    \coreq 40,27,20,00:
    \coreq 40,27,58,27:
    
    
    \coreq 40,40,40,27: 
    \coreq 40,40,20,00: 
    
    \begin{pgfonlayer}{courses}
        \draw[dashed] ([shift={(-2mm,-1mm)}]x40y27.south west) rectangle ([shift={(1mm,2mm)}]x58y27.north east);
    \end{pgfonlayer}
\end{chart}

\end{document}