为什么软剪辑域代码无法填充0到3？
\documentclass{standalone}
\usepackage{tikz}
\usepackage{pgfplots}
\usetikzlibrary{ decorations.markings,arrows.meta}
\pgfplotsset{compat=newest}
\usepgfplotslibrary{fillbetween}
\begin{document}
\begin{tikzpicture}
\begin{axis}[xmin=-1, xmax=9, ymin=-1, ymax=4.5,
ticks=none,
xtick distance=0.5,
ytick distance=0.5,
axis equal image=true,
grid,
grid style={ultra thin, gray!10},
grid=both,
axis lines=middle,
axis line style={->},
xlabel={$x$},
ylabel={$y$},
xlabel style={at={(ticklabel* cs:1)},anchor=west},
ylabel style={at={(ticklabel* cs:1)},anchor=south}
]
\addplot[name path = A, red, thick, smooth] plot coordinates
{ (0, 1)
(1.5, 2.4)
(3, 0.7)
(4.3, 2.8)
(5.4, 3)
(6.5, 2)
(7.5, 1) };
\addplot[name path = B, blue, thick, smooth] plot coordinates
{ (0, 2)
(1.5, 0.8)
(3, 2.5)
(5, 0.8)
(6, 1.3)
(6.7, 2)
(7.5, 3) };
\addplot [fill=teal!40, opacity=0.5] fill between [of = A and B, soft clip={domain=0:3}];
\draw (axis cs:7.5,0)--(axis cs:7.5,4);
\node at (axis cs:7.5,-0.3) {\tiny 1};
\node at (axis cs:0.2,-0.3) {\tiny 0};
\node at (axis cs:5,3.5) {\tiny \color{red}$ y=f(x) $};
\node at (axis cs:5,0.5) {\tiny \color{blue}$ y=g(x) $};
\end{axis}
\end{tikzpicture}
\end{document}
答案1
这不是一个答案，而是一个错误报告的 MWE，如果它不存在的话
这既发生在内部，axis也发生在\addplot内部，但值取决于轴刻度。只有在使用该选项时才会发生。只有当边界与路径起点/终点重合时才会发生。tikzpicture\drawsmoothsoft clip path
-因此可以通过延长剪辑来轻松避免这种情况。
\documentclass[tikz, border=1cm]{standalone}
\usepackage{pgfplots}
\pgfplotsset{compat=1.18}
\usepgfplotslibrary{fillbetween}
\begin{document}
\begin{tikzpicture}
\begin{axis}[
xmin=-2, xmax=3,
ymin=-1, ymax=3,
]
\pgfplotsinvokeforeach{-1,-0.9,...,1}{
\addplot[
smooth,
postaction={decorate, draw, ultra thick, red},
decoration={soft clip, soft clip path={domain=#1:1}},
] plot coordinates{(#1,0) (2,2)};
}
\end{axis}
\end{tikzpicture}
\end{document}
