☰

如何填充tikz中两个形状包围的区域

tag-icon • tag-icon tikz-pgf tikz-styles
如何填充tikz中两个形状包围的区域

我有两条线；一条是“弯曲”的线，另一条是顶点（参见下面的MWE）：

两条线

我该如何填充这两条线所围成的区域？即红线和黑线之间的区域？

平均能量损失

\documentclass[tikz]{standalone}
\usepackage{pgf,pgfplots,pgfplotstable,amsmath,amssymb}

\begin{document} 

\begin{tikzpicture}
    \draw [ultra thick,red] (-19.5,-16) to[out=55,in=228] (-14,-9) to [out=45,in=180] (0,-2) to[out=0,in=135] (14, -9) to[out=318,in=125] (20,-16);
\fill (-14,-9) circle (0.15cm);
\fill (14,-9) circle (0.15cm);    
\draw (-14,-9) -- (0,-15) -- (14,-9);
\end{tikzpicture}

\end{document}

答案1

\documentclass[tikz]{standalone}
\begin{document} 
\begin{tikzpicture}
  \fill[green] (-14,-9) to [out=45,in=180] (0,-2) to[out=0,in=135] (14, -9) -- (0,-15) -- cycle;
  \draw [ultra thick,red] (-19.5,-16) to[out=55,in=228] (-14,-9) to [out=45,in=180] (0,-2) to[out=0,in=135] (14, -9) to[out=318,in=125] (20,-16);
  \fill (-14,-9) circle (0.15cm);
  \fill (14,-9) circle (0.15cm);    
  \draw (-14,-9) -- (0,-15) -- (14,-9);
\end{tikzpicture}
\end{document}

填充区域

编辑只是为了显示\fillbetween- 这不是一个好的解决方案。

\documentclass[tikz, border=1cm]{standalone}
\usepackage{pgfplots}
\usetikzlibrary{intersections, pgfplots.fillbetween}
\begin{document} 
\begin{tikzpicture}
  \draw [ultra thick, red, name path=A] (-19.5,-16) to[out=55, in=228] (-14,-9) to [out=45, in=180] (0,-2) to[out=0, in=135] (14, -9) to[out=318, in=125] (20,-16);
  \fill (-14,-9) circle (0.15cm);
  \fill (14,-9) circle (0.15cm);    
  \draw[name path=B] (-14,-9) -- (0,-15) -- (14,-9);
  \tikzfillbetween[of=A and B, split, every segment no 0/.style={fill=none}, every segment no 1/.style={green}, every segment no 2/.style={fill=none}] {};
\end{tikzpicture}
\end{document}

此填充是在路径\drawn 之后完成的，从而覆盖了部分线条。-这可以解决。

相关内容