3d tikz 节点框中的二进制数表示

2024-5-25 • tag-icon

tikz-pgf 3d box number

3d tikz 节点框中的二进制数表示

我的努力是

\documentclass[margin=1in]{standalone}

\usepackage{tikz}
\usetikzlibrary[arrows, decorations.pathmorphing, backgrounds, positioning, fit, petri]


\begin{document}
    \begin{tikzpicture}[node distance=0pt,
        box/.style={draw, minimum size=1cm, inner sep=0.5cm},
        value/.style={yshift=-1cm}]
        \node[box] (b7) {1};
        \node[box] (b6) [right=of b7] {1};
        \node[box] (b5) [right=of b6] {1};
        \node[box] (b4) [right=of b5] {1};
        \node[box] (b3) [right=of b4] {1};
        \node[box] (b2) [right=of b3] {1};
        \node[box] (b1) [right=of b2] {1};
        \node[box] (b0) [right=of b1] {1};
        
        \node[value] [below of=b0] {$2^0$};
        \node[value] [below of=b1] {$2^1$};
        \node[value] [below of=b2] {$2^2$};
        \node[value] [below of=b3] {$2^3$};
        \node[value] [below of=b4] {$2^4$};
        \node[value] [below of=b5] {$2^5$};
        \node[value] [below of=b6] {$2^6$};
        \node[value] [below of=b7] {$2^7$};
    \end{tikzpicture}
\end{document}

我怎样才能在 tikz 中绘制这种二进制数字表示，就像 3d 框节点类型一样。谢谢

答案1

对于二进制数来说，这似乎是一张合理的图像1111111，但是对于二进制数来说，101010111我认为图像应该是：

下面的代码定义了一个宏\BinaryNumber，它接受以逗号分隔的二进制数字列表。定义完成后，您可以使用

  \BinaryNumber{1,1,1,1,1,1,1,1,1}
  \BinaryNumber{1,0,1,0,1,1,1}
  \BinaryNumber{1,0,1,1,1,0,1,0,0,1,1}

生产：

这是代码。我在下面稍微解释一下它的工作原理：

\documentclass{article}
\usepackage{tikz}

\tikzset{
  pics/byte cube/.style args = {#1,#2}{
      code = {
         \draw[fill=white] (0,0) rectangle (1,1);
         \node at (0.5,0.5){#1};
         \draw[cube #1] (0,0)--(-60:2mm)--++(1,0)--++(0,1)--++(120:2mm)--(1,0)--cycle;
         \draw(1,0)--++(-60:2mm);
         \node at (0.5,-0.5){$2^{#2}$};
      }
    },
    cube 1/.style = {fill=gray!30}, % style for bytes that are "on"
    cube 0/.style = {fill=white},   % style for bytes that are "off"
}

\newcommand\BinaryNumber[1]{%
  \begin{tikzpicture}
     % count the number of bytes and store as \C
     \foreach \i [count=\c] in {#1} { \xdef\C{\c} }
     \foreach \i [count=\c, evaluate=\c as \ex using {int(\C-\c)}] in {#1} {
       \pic at (\c, 1) {byte cube={\i,\ex}};
     }
  \end{tikzpicture}

}
\begin{document}

  \BinaryNumber{1,1,1,1,1,1,1,1,1}          \bigskip

  \BinaryNumber{1,0,1,0,1,1,1}              \bigskip

  \BinaryNumber{1,0,1,1,1,0,1,0,0,1,1}      \bigskip

\end{document}

主要思想是使用pic来绘制每个字节（参见蒂克兹手册）。pic 称为，byte cube接受两个参数：{0 or 1, exponent}。pic 绘制“字节立方体”，数字下方的填充颜色设置为cube 0或的相应样式cube 1。更改这些样式将更改数字下的阴影。（因此，根据设计，样式的选择取决于二进制数字。）

第一个定义\BinaryNumber循环遍历字节以确定二进制数的“长度”，然后再次循环遍历它们以绘制每个“字节立方体”。每个连续的字节立方体都会覆盖前一个立方体中我们“不想要”的部分。因此，即使右侧的阴影是为每个立方体绘制的，也只对最右边的立方体可见。

答案2

第一个简单的解决方案如下：

\documentclass[margin=1in]{standalone}

\usepackage{tikz}
\usetikzlibrary[arrows, decorations.pathmorphing, backgrounds, positioning, fit, petri]

\begin{document}
    \begin{tikzpicture}[node distance=0pt,
        box/.style={draw, minimum size=1cm, inner sep=0.5cm},
        value/.style={yshift=-1cm}]
        \node[box] (b7) {1};
        \node[box] (b6) [right=of b7] {1};
        \node[box] (b5) [right=of b6] {1};
        \node[box] (b4) [right=of b5] {1};
        \node[box] (b3) [right=of b4] {1};
        \node[box] (b2) [right=of b3] {1};
        \node[box] (b1) [right=of b2] {1};
        \node[box] (b0) [right=of b1] {1};
\def\xasn{1mm}% x direction of the box
\def\yasn{-1.5mm}% y direction of the box
\fill[lightgray] (b0.north east) -- ([shift={(\xasn,\yasn)}]b0.north east) -- ([shift={(\xasn,\yasn)}]b0.south east) -- (b0.south east);
\draw (b0.north east) -- ([shift={(\xasn,\yasn)}]b0.north east) -- ([shift={(\xasn,\yasn)}]b0.south east);

\foreach \boxnr in {0,1,...,7} {
\draw[fill=lightgray] (b\boxnr.south west) -- +(\xasn,\yasn) -- ([shift={(\xasn,\yasn)}]b\boxnr.south east) -- (b\boxnr.south east);
}
        
        \node[value] [below of=b0] {$2^0$};
        \node[value] [below of=b1] {$2^1$};
        \node[value] [below of=b2] {$2^2$};
        \node[value] [below of=b3] {$2^3$};
        \node[value] [below of=b4] {$2^4$};
        \node[value] [below of=b5] {$2^5$};
        \node[value] [below of=b6] {$2^6$};
        \node[value] [below of=b7] {$2^7$};
    \end{tikzpicture}
\end{document}

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