带辐射箭头的化学方程式

Question

我认为这并不容易mhchem（但我可能错了……）

以下尝试使用chemformula包代替mhchem并使用 TikZ/pgf 和杰克的complete sines装饰表示波浪线。chemformula允许定义用于化学反应的新箭头。由于语法在细节上与有很大不同，因此mhchem这对您来说可能是也可能不是一个可行的解决方案。

作为使用的快捷方式，我定义了一种样式

\tikzset{
  wave/.style={
    decorate,decoration={
      complete sines,
      segment length=3pt,
      amplitude=2pt
    }
  }
}

现在我加载chemformula封装并定义一个新箭头：

\NewChemArrow{w>}{
  \path (cf_arrow_end) -- +(-5pt,0) coordinate (xxx) ; 
  \draw[chemarrow,wave] (cf_arrow_start) -- (xxx) ;
   \draw[chemarrow,-cf] (xxx) -- (cf_arrow_end);
}

chemformula现在它可以像任何其他的箭头一样使用：

\ch{P w>[$\gamma$-radiation] P^*}

完整代码：

\documentclass{article}
\usepackage{chemformula,tikz}

% https://tex.stackexchange.com/a/25689
\usetikzlibrary{decorations.pathmorphing}
\pgfdeclaredecoration{complete sines}{initial}{
  \state{initial}[
    width = +0pt ,
    next state = sine,
    persistent precomputation = {
      \pgfmathsetmacro\matchinglength{
        \pgfdecoratedinputsegmentlength /
        int(\pgfdecoratedinputsegmentlength/\pgfdecorationsegmentlength)
      }
      \setlength{\pgfdecorationsegmentlength}{\matchinglength pt}
    }
  ]{}
  \state{sine}[width=\pgfdecorationsegmentlength]{
    \pgfpathsine{
      \pgfpoint
        {0.25\pgfdecorationsegmentlength}
        {0.5\pgfdecorationsegmentamplitude}
      }
    \pgfpathcosine{
      \pgfpoint
        {0.25\pgfdecorationsegmentlength}
        {-0.5\pgfdecorationsegmentamplitude}
      }
    \pgfpathsine{
      \pgfpoint
        {0.25\pgfdecorationsegmentlength}
        {-0.5\pgfdecorationsegmentamplitude}
      }
    \pgfpathcosine{
      \pgfpoint
        {0.25\pgfdecorationsegmentlength}
        {0.5\pgfdecorationsegmentamplitude}
      }
  }
  \state{final}{}
}

% a shortcut to use the new decoration:
\tikzset{
  wave/.style={
    decorate,decoration={
      complete sines,
      segment length=3pt,
      amplitude=2pt
    }
  }
}

% a new arrow:
\NewChemArrow{w>}{
  \path (cf_arrow_end) -- +(-5pt,0) coordinate (xxx) ; 
  \draw[chemarrow,wave] (cf_arrow_start) -- (xxx) ;
   \draw[chemarrow,-cf] (xxx) -- (cf_arrow_end);
}

\begin{document}

\ch{P w> P^*}

\ch{P w>[$\gamma$-radiation] P^*}

\end{document}

Answer 1