當節點包含在矩形中時不同的顏色

Question 1

第二點的答案是使用函式庫fit就說fit=(O00)(O33)。對於第一點，您可以使用\x和上的條件\y並相應地更改color=，或者更容易（但不是最有效）繪製矩形clip路徑並將綠色節點放入其中。

\documentclass{scrartcl}

\usepackage{tikz}
\usetikzlibrary{fit}

\begin{document}

\begin{tikzpicture}[
  vertex/.style={draw, circle, inner sep=0, minimum size=0.12cm}
  ]
  \newcommand{\drawcircles}[1]{%
  \foreach \x in {0,1,...,6} {
    \foreach \y  in {0,1,...,7} {
      \node at (\x*0.4,\y*0.4) [vertex, color=#1] {};
    }
  }}
  \drawcircles{blue}
  \foreach \x in {0,1,...,3} {
    \foreach \y  in {0,1,...,3} {
      \node at (\x*0.5+0.35,\y*0.5+0.55) (O\x\y)[vertex, draw=none,  fill=orange] {};
    }
  }
  \node[draw, dashed, color=orange, thick, fit=(O00)(O33)] (BB){};
  \path [clip] (BB.north west) rectangle (BB.south east);
  \drawcircles{green,thick}
 \end{tikzpicture}

\end{document}

以及條件方法：

\documentclass{scrartcl}

\usepackage{tikz,ifthen}    % <---
\usetikzlibrary{fit}

\begin{document}

\begin{tikzpicture}[
  vertex/.style={draw, circle, inner sep=0, minimum size=0.12cm}
  ]
  \foreach \x in {0,1,...,6} {
    \foreach \y  in {0,1,...,7} {
      \ifthenelse{\x>0\AND\x<6 \AND \y>0\AND\y<6}            % condition 
        {\node at (\x*0.4,\y*0.4) [vertex, color=green] {};} % true
        {\node at (\x*0.4,\y*0.4) [vertex, color=blue] {};}  % false    
    }
  }
  \foreach \x in {0,1,...,3} {
    \foreach \y  in {0,1,...,3} {
      \node at (\x*0.5+0.35,\y*0.5+0.55) (O\x\y)[vertex, draw=none,  fill=orange] {};
    }
  }
  \node[draw, dashed, color=orange, thick, fit=(O00)(O33)] (BB){};
 \end{tikzpicture}

\end{document}

Answer

第二點的答案是使用函式庫fit就說fit=(O00)(O33)。對於第一點，您可以使用\x和上的條件\y並相應地更改color=，或者更容易（但不是最有效）繪製矩形clip路徑並將綠色節點放入其中。

\documentclass{scrartcl}

\usepackage{tikz}
\usetikzlibrary{fit}

\begin{document}

\begin{tikzpicture}[
  vertex/.style={draw, circle, inner sep=0, minimum size=0.12cm}
  ]
  \newcommand{\drawcircles}[1]{%
  \foreach \x in {0,1,...,6} {
    \foreach \y  in {0,1,...,7} {
      \node at (\x*0.4,\y*0.4) [vertex, color=#1] {};
    }
  }}
  \drawcircles{blue}
  \foreach \x in {0,1,...,3} {
    \foreach \y  in {0,1,...,3} {
      \node at (\x*0.5+0.35,\y*0.5+0.55) (O\x\y)[vertex, draw=none,  fill=orange] {};
    }
  }
  \node[draw, dashed, color=orange, thick, fit=(O00)(O33)] (BB){};
  \path [clip] (BB.north west) rectangle (BB.south east);
  \drawcircles{green,thick}
 \end{tikzpicture}

\end{document}

以及條件方法：

\documentclass{scrartcl}

\usepackage{tikz,ifthen}    % <---
\usetikzlibrary{fit}

\begin{document}

\begin{tikzpicture}[
  vertex/.style={draw, circle, inner sep=0, minimum size=0.12cm}
  ]
  \foreach \x in {0,1,...,6} {
    \foreach \y  in {0,1,...,7} {
      \ifthenelse{\x>0\AND\x<6 \AND \y>0\AND\y<6}            % condition 
        {\node at (\x*0.4,\y*0.4) [vertex, color=green] {};} % true
        {\node at (\x*0.4,\y*0.4) [vertex, color=blue] {};}  % false    
    }
  }
  \foreach \x in {0,1,...,3} {
    \foreach \y  in {0,1,...,3} {
      \node at (\x*0.5+0.35,\y*0.5+0.55) (O\x\y)[vertex, draw=none,  fill=orange] {};
    }
  }
  \node[draw, dashed, color=orange, thick, fit=(O00)(O33)] (BB){};
 \end{tikzpicture}

\end{document}

Question 2

與@marmot討論後，我修正了我的想法，現在有8個值需要傳遞。為了提供幫助，我創建了命令

\gridBlue{xmin}{xmax}{ymin}{ymax}
\gridOrange{xmin}{xmax}{ymin}{ymax}

這樣圓圈就形成了格子[xmin,xmax] \times [ymin,ymax]（藍色和橘色）。

另外，請注意如果圓與矩形接觸，不考慮裡面所以仍然是藍色。

最後，最重要的零件在哪裡\x <= \xmaxOrange + 1以及\y <= \ymaxOrange + 2添加的位置應該調整取決於橘色圓圈的擾動。

評論：OP將節點座標乘以一個因子並平移它們；這個過程使得自動計算擾動因子變得困難。

\documentclass[tikz,border=1mm]{standalone}

% grid format
% [#1,#2] \times [#3,#4]
\newcommand{\gridBlue}[4]{
\pgfmathtruncatemacro{\xminBlue}{#1}
\pgfmathtruncatemacro{\xmaxBlue}{#2}

\pgfmathtruncatemacro{\yminBlue}{#3}
\pgfmathtruncatemacro{\ymaxBlue}{#4}
}

\newcommand{\gridOrange}[4]{
\pgfmathtruncatemacro{\xminOrange}{#1}
\pgfmathtruncatemacro{\xmaxOrange}{#2}

\pgfmathtruncatemacro{\yminOrange}{#3}
\pgfmathtruncatemacro{\ymaxOrange}{#4}
}

\begin{document}
% [1,7] \times [1,6]
\gridBlue{1}{7}{1}{6}
% [2,4] \times [1,3]
\gridOrange{2}{4}{1}{3}

\begin{tikzpicture}[
vertex/.style={draw, circle, inner sep=0, minimum size=0.12cm}
]
\foreach \x in {\xminBlue,...,\xmaxBlue} {
\foreach \y in {\yminBlue,...,\ymaxBlue} {
\pgfmathsetmacro{\mycolor}{ifthenelse(\x >= \xminOrange+2 && \x <= \xmaxOrange+1  && \y >= \yminOrange+2 && \y <= \ymaxOrange+2, "green","blue")}
\node at (\x*0.4,\y*0.4) [vertex, color=\mycolor] {};
}
}
\begin{scope}[local bounding box=BB]
\foreach \x in {\xminOrange,...,\xmaxOrange} {
\foreach \y in {\yminOrange,...,\ymaxOrange} {
\node at (\x*0.5+0.35,\y*0.5+0.55) [vertex, draw=none, fill=orange] {};
}
}
\end{scope}
\draw[color=orange, thin]
([xshift=-1pt,yshift=-1pt]BB.south west) rectangle ([xshift=1pt,yshift=1pt]BB.north east);
\end{tikzpicture}

\end{document}

編輯：下圖顯示了平移如何影響橙色網格：黑色箭頭指向(\xminOrange*0.5,\yminOrange*0.5)到(\xminOrange*0.5 + .35,\yminOrange*0.5 + .55)。

Answer