我正在尝试在 Ti 中重新创建图像钾Z。下面左边的是原作，下面右边的是我迄今为止的作品。
这是一个将生成我当前结果的 MWE：
\documentclass[margin=2mm]{standalone}
\usepackage{tikz}
\usepackage{amsmath}
\usetikzlibrary{decorations.pathreplacing,positioning}
\begin{document}
\pgfdeclareverticalshading{rainbow}{2cm}{color(0mm)=(red); color(4mm)=(orange); color(7mm)=(yellow); color(8mm)=(yellow); color(11mm)=(green); color(14mm)=(blue!50); color(15mm)=(blue!50); color(20mm)=(purple)}
\begin{tikzpicture}[yscale=1.4]
\footnotesize
\begin{scope}[
every node/.style={black,midway,text width=2cm,align=center}
]
\fill [gray!50] (0,0) rectangle (2,1) node{Radio waves};
\fill [brown!65!black!55] (0,1) rectangle (2,3.5) node{Microwave};
\fill [brown!60!red!40] (0,3.5) rectangle (2,4.75) node{Thermal infrared};
\fill [brown!40!red!60] (0,4.75) rectangle (2,5.625) node{Middle infrared};
\fill [brown!20!red!70] (0,5.625) rectangle (2,6.375) node{Shortwave infrared};
\fill [red!80] (0,6.375) rectangle (2,6.875) node{Near infrared};
\shade [shading=rainbow] (0,6.875) rectangle (2,7.5) node{Visible};
\fill [red!60!blue!30] (0,7.5) rectangle (2,8.75) node{Ultraviolet};
\fill [red!20!blue!27] (0,8.75) rectangle (2,10.375) node{X-rays};
\fill [red!20!blue!27] (0,10.375) rectangle (2,12) node{Gamma rays};
\end{scope}
\draw (0,0) -- (0,12);
\draw (2,0) -- (2,12);
\draw [densely dashed] (0,7.75) -- ++(2,0) node[right,text width=1cm]{0.28};
\foreach \y/\val in {1/$10^6$\\(1 m),3.5/$10^3$\\(1 mm),4.75/5.50,5.625/3.00,6.375/1.50,6.875/0.70,7.5/0.40,8.75/$0.01(10^{-2})$,10.375/} {
\draw (0,\y) -- ++(2,0) node[right,text width=1cm]{\val};
}
\node [anchor=west,text width=1cm] at (2,2.6) {$10^4$};
\node [anchor=west,text width=1cm] at (2,9.6) {$10^{-4}$};
\node [anchor=west,text width=1cm] at (2,11.8) {$10^{-8}$};
\node [rotate=90] at (3.6,6) {Micrometers ($\mu$m)};
\shade [shading=rainbow] (-2,6.375) rectangle (-1.5,8);
\draw [densely dashed] (0,6.875) -- (-1.5,6.375) (0,7.5) -- (-1.5,8);
\begin{scope}[node distance=-1.6pt]
\node (a) at (-2.5,7.9) {0.400};
\node (b) [below=of a] {0.424};
\node (c) [below=of b] {0.491};
\node (d) [below=of c] {0.575};
\node (e) [below=of d] {0.585};
\node (f) [below=of e] {0.647};
\node (g) [below=of f] {0.710};
\end{scope}
\begin{scope}[
every path/.style={decorate,decoration={brace,mirror}},
every node/.style={left=1.3cm,anchor=west}
]
\draw (a.west) -- node(v){Violet} (b.west);
\draw (b.west) -- node{Blue} (c.west);
\draw (c.west) -- node{Green} (d.west);
\draw (d.west) -- node{Yellow} (e.west);
\draw (e.west) -- node{Orange} (f.west);
\draw (f.west) -- node(r){Red} (g.west);
\end{scope}
\draw [decorate,decoration={brace,mirror}] (v.north west) -- node[rotate=90,above]{Visible light} (r.south west);
\node [anchor=west,text width=3cm] at (-4.7,11.2) {Energy discharges from atomic nuclei};
\node [anchor=west,text width=3cm] at (-4.7,9.5) {\quad(hard X-ray)\\Medical applications\\\quad(soft X-ray)};
\node [anchor=west,text width=3cm] at (-4.7,4.1) {Heat lamp};
\node [anchor=west,text width=3cm] at (-4.7,2.3) {Microwave\\radar};
\node [anchor=west,text width=3cm] at (-4.7,0.5) {Television\\FM radio\\[6pt]AM radio};
\end{tikzpicture}
\end{document}
如您所见，我几乎已经把所有东西都弄得足够接近我喜欢的样子了。但是，我不知道如何创建向外平滑扇形的彩虹阴影。重复一遍，我可以通过\pgfdeclareverticalshading如图所示线性地进行彩虹阴影，但我不知道如何从标记为“可见”的挤压阴影到左侧带有数字的较长阴影创建梯形过渡区域。我知道这是一件小事，但我只是很好奇，因为我已经浏览过这个网站和 PGF 手册，但还是没能弄明白 :)
如果我可以提供其他任何东西，请告诉我，谢谢！
答案1
使用一个小技巧。
\documentclass[margin=2mm]{standalone}
\usepackage{tikz}
\usepackage{amsmath}
\usetikzlibrary{decorations.pathreplacing,positioning}
\begin{document}
\pgfdeclareverticalshading{rainbow}{2cm}{color(0mm)=(red); color(4mm)=(orange); color(7mm)=(yellow); color(8mm)=(yellow); color(11mm)=(green); color(14mm)=(blue!50); color(15mm)=(blue!50); color(20mm)=(purple)}
\begin{tikzpicture}[yscale=1.4]
\footnotesize
\begin{scope}[
every node/.style={black,midway,text width=2cm,align=center}
]
\fill [gray!50] (0,0) rectangle (2,1) node{Radio waves};
\fill [brown!65!black!55] (0,1) rectangle (2,3.5) node{Microwave};
\fill [brown!60!red!40] (0,3.5) rectangle (2,4.75) node{Thermal infrared};
\fill [brown!40!red!60] (0,4.75) rectangle (2,5.625) node{Middle infrared};
\fill [brown!20!red!70] (0,5.625) rectangle (2,6.375) node{Shortwave infrared};
\fill [red!80] (0,6.375) rectangle (2,6.875) node{Near infrared};
\shade [shading=rainbow] (0,6.875) rectangle (2,7.5) node{Visible};
\fill [red!60!blue!30] (0,7.5) rectangle (2,8.75) node{Ultraviolet};
\fill [red!20!blue!27] (0,8.75) rectangle (2,10.375) node{X-rays};
\fill [red!20!blue!27] (0,10.375) rectangle (2,12) node{Gamma rays};
\end{scope}
\draw (0,0) -- (0,12);
\draw (2,0) -- (2,12);
\draw [densely dashed] (0,7.75) -- ++(2,0) node[right,text width=1cm]{0.28};
\foreach \y/\val in {1/$10^6$\\(1 m),3.5/$10^3$\\(1 mm),4.75/5.50,5.625/3.00,6.375/1.50,6.875/0.70,7.5/0.40,8.75/$0.01(10^{-2})$,10.375/} {
\draw (0,\y) -- ++(2,0) node[right,text width=1cm]{\val};
}
\node [anchor=west,text width=1cm] at (2,2.6) {$10^4$};
\node [anchor=west,text width=1cm] at (2,9.6) {$10^{-4}$};
\node [anchor=west,text width=1cm] at (2,11.8) {$10^{-8}$};
\node [rotate=90] at (3.6,6) {Micrometers ($\mu$m)};
\shade [shading=rainbow] (-2,6.375)coordinate(DLVis) rectangle (-1.5,8) coordinate(URVis);
% trick
\foreach \hShift[evaluate=\hShift as \vShift using \hShift/3] in {0,0.01,...,1.5} {
\shade[shading=rainbow] ([shift={(\hShift cm,-\vShift cm)}]URVis) -- +(0.01cm,0) |- ([shift={(\hShift cm,\vShift cm)}]URVis |- DLVis) -- cycle;
}
%\draw [densely dashed] (0,6.875) -- (-1.5,6.375) (0,7.5) -- (-1.5,8);
\begin{scope}[node distance=-1.6pt]
\node (a) at (-2.5,7.9) {0.400};
\node (b) [below=of a] {0.424};
\node (c) [below=of b] {0.491};
\node (d) [below=of c] {0.575};
\node (e) [below=of d] {0.585};
\node (f) [below=of e] {0.647};
\node (g) [below=of f] {0.710};
\end{scope}
\begin{scope}[
every path/.style={decorate,decoration={brace,mirror}},
every node/.style={left=1.3cm,anchor=west}
]
\draw (a.west) -- node(v){Violet} (b.west);
\draw (b.west) -- node{Blue} (c.west);
\draw (c.west) -- node{Green} (d.west);
\draw (d.west) -- node{Yellow} (e.west);
\draw (e.west) -- node{Orange} (f.west);
\draw (f.west) -- node(r){Red} (g.west);
\end{scope}
\draw [decorate,decoration={brace,mirror}] (v.north west) -- node[rotate=90,above]{Visible light} (r.south west);
\node [anchor=west,text width=3cm] at (-4.7,11.2) {Energy discharges from atomic nuclei};
\node [anchor=west,text width=3cm] at (-4.7,9.5) {\quad(hard X-ray)\\Medical applications\\\quad(soft X-ray)};
\node [anchor=west,text width=3cm] at (-4.7,4.1) {Heat lamp};
\node [anchor=west,text width=3cm] at (-4.7,2.3) {Microwave\\radar};
\node [anchor=west,text width=3cm] at (-4.7,0.5) {Television\\FM radio\\[6pt]AM radio};
\end{tikzpicture}
\end{document}
