我正在尝试制作一个好看的明视光度函数图。所以我想制作彩色图，但它的颜色图应该取决于 X 值。可以用吗pgfplots？
我也会很感激任何关于这种彩色情节的想法。
这是 MWE，抱歉坐标太多。我还没有将颜色改为 [紫色...红色]。
\documentclass{article}
\usepackage{tikz}
\usepackage{pgfplots}
\begin{document}
\begin{tikzpicture}
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axis x line=bottom,
axis y line=left,
ymax=1.1,xmin=390,xmax=710,
xlabel=$\lambda$,
ylabel=$Relative~Sensivity$]
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\end{tikzpicture}
\end{document}
答案1
您可以使用point meta键；x值使用可用x坐标作为点元数据。有关更多详细信息，请参阅手册第 157-158 页pgfplots。
\documentclass{article}
\usepackage{tikz}
\usepackage{pgfplots}
\begin{document}
\begin{tikzpicture}
\begin{axis}[
axis x line=bottom,
axis y line=left,
ymax=1.1,xmin=390,xmax=710,
xlabel=$x$,ylabel=$\sin x$,
xlabel=$\lambda$,
ylabel=$Relative~Sensivity$,
point meta=x]
\addplot[smooth,mesh,line width=1.5pt]
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\end{tikzpicture}
\end{document}
