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設定宏為 tikz 中的節點著色

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設定宏為 tikz 中的節點著色

我有以下程式碼

\documentclass[a0paper,landscape]{article}
\usepackage{tikz}
\usepackage{geometry}
\usetikzlibrary{arrows,patterns,shapes,positioning}
\geometry{margin = .5in}


\begin{document}
    \centering
    \begin{tikzpicture}[
        roundnode/.style = {circle,very thick,draw=blue!70,fill=blue!5,minimum size=7mm},
        cloudnode/.style = {cloud,cloud puffs=10, cloud puff arc=60,draw=cyan!70,fill=cyan!5,minimum width = 5mm,minimum height= 3mm}, 
        rectnode/.style = {rectangle,draw = green!60,fill=green!5,minimum size = 7mm},
    ]
    % Nodes
    \node[roundnode] (titulo) at (0,0) {Eletricidade};
    \node[rectnode,draw=yellow!70,fill=yellow!10] (carga) at (0, -3) {Cargas Elétricas};
    \node[rectnode,draw=red!70,fill=red!5,below left= of carga] (positivas) {Positivas};
    \node[rectnode,draw=blue!70,fill=blue!10,below right= of carga] (negativas) {Negativas};
    
    % Lines
    \begin{scope}[>=stealth,thick]
    \draw[->] (titulo) -- (carga) node [pos=.5,right] {Estuda os fenômenos relacionados a};
    \draw (carga) -- (0,-4)  node [below= 4mm]{Que podem ser} ;
    \draw[->](0,-4) -- (negativas);
    \draw[->](0,-4) -- (positivas);
    \end{scope}
    \end{tikzpicture}
\end{document}

我希望建立一個巨集來取代其中draw=[colorname]!70,fill=[colorname]!10colorname 是 xcolor 套件中的任何顏色，或至少是 LaTeX 原生顏色。此巨集應將顏色名稱作為參數（參數，idk）。這樣，我可以透過呼叫類似以下內容來為節點著色：

\node[rectnode,nodecolor=blue,{other options}] at ({coordinate}) {Anything}

你們能幫我嗎？

答案1

您可以將參數傳遞給樣式，也可以設定預設值。所以你可以做

 rectnode/.style = {rectangle,draw = #1!60,fill=#1!5,minimum size = 7mm},
 rectnode/.default = green

這裡#1代表傳遞給樣式的參數。要在節點中使用預設的綠色，只需執行以下操作

\node[rectnode] ...

但如果你想要不同的顏色，例如

\node[rectnode=blue] ...

反而。完整程式碼：

\documentclass{article}
\usepackage{tikz}
\usepackage{geometry}
\usetikzlibrary{arrows,patterns,shapes,positioning}
\geometry{margin = .5in}


\begin{document}
    \centering
    \begin{tikzpicture}[
        roundnode/.style = {circle,very thick,draw=blue!70,fill=blue!5,minimum size=7mm},
        cloudnode/.style = {cloud,cloud puffs=10, cloud puff arc=60,draw=cyan!70,fill=cyan!5,minimum width = 5mm,minimum height= 3mm}, 
        rectnode/.style = {rectangle,draw = #1!60,fill=#1!5,minimum size = 7mm},
        rectnode/.default = green
    ]
    % Nodes
    \node[roundnode] (titulo) at (0,0) {Eletricidade};
    \node[rectnode=yellow] (carga) at (0, -3) {Cargas Elétricas};
    \node[rectnode=red,below left= of carga] (positivas) {Positivas};
    \node[rectnode=blue,below right= of carga] (negativas) {Negativas};
    
    % Lines
    \begin{scope}[>=stealth,thick]
    \draw[->] (titulo) -- (carga) node [pos=.5,right] {Estuda os fenômenos relacionados a};
    \draw (carga) -- (0,-4)  node [below= 4mm]{Que podem ser} ;
    \draw[->](0,-4) -- (negativas);
    \draw[->](0,-4) -- (positivas);
    \end{scope}
    \end{tikzpicture}
\end{document}

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