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如何创建这样的封面？

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如何创建这样的封面？

我看到我的中文同学在读一本书，虽然我不认识上面的汉字，但这本书的封面非常精美。enter image description here 我怎样才能在自己的课堂笔记中创建这样的封面？

答案1

能做这样的事吗？是的。右上角的曲线很可能是某种阿波罗尼乌斯（黄金比例？）圆，但我懒得去查。

\documentclass{article}
\usepackage{tikz}
\usetikzlibrary{intersections,decorations.text}
\definecolor{c1}{RGB}{62, 97, 127}
\definecolor{c2}{RGB}{104, 182, 182}
\definecolor{c3}{RGB}{107, 190, 190}
\definecolor{c4}{RGB}{100, 172, 174}
\begin{document}
\thispagestyle{empty}
\begin{tikzpicture}[overlay,remember picture,font=\sffamily\bfseries]
 \draw[very thick,c4,name path=big arc] ([xshift=-2mm]current page.north) arc(150:285:11)
 coordinate[pos=0.225] (x0);
 \begin{scope}
  \clip ([xshift=-2mm]current page.north) arc(150:285:11) --(current page.north
  east);
  \fill[c4!50,opacity=0.25] ([xshift=4.55cm]x0) circle (4.55);
  \fill[c4!50,opacity=0.25] ([xshift=3.4cm]x0) circle (3.4);
  \fill[c4!50,opacity=0.25] ([xshift=2.25cm]x0) circle (2.25);
  \draw[very thick,c4!50] (x0) arc(-90:30:6.5);
  \draw[very thick,c4] (x0) arc(90:-30:8.75);
  \draw[very thick,c4!50,name path=arc1] (x0) arc(90:-90:4.675);
  \draw[very thick,c4!50] (x0) arc(90:-90:2.875);
  \path[name intersections={of=big arc and arc1,by=x1}];
  \draw[very thick,c4,name path=arc2] (x1) arc(135:-20:4.75);
  \draw[very thick,c4!50] (x1) arc(135:-20:8.75);
  \path[name intersections={of=big arc and arc2,by={aux,x2}}];
  \draw[very thick,c4!50] (x2) arc(180:50:2.25);
 \end{scope} 
 \path[decoration={text along path,text color=c4,
                 raise = -2.8ex,
                 text  along path,
                 text = {|\sffamily\bfseries|02/18/2019},
                 text align = center,
             },
             decorate
         ] ([xshift=-2mm]current page.north) arc(150:245:11);
 %
 \begin{scope}
  \path[clip,postaction={fill=c3}]
  ([xshift=2cm,yshift=-8cm]current page.center) rectangle ++ (4.2,7.7);
  \fill[c2] ([xshift=0.5cm,yshift=-8cm]current page.center)
   ([xshift=0.5cm,yshift=-8cm]current page.center)  arc(180:60:2)
    |- ++ (-3,6) --cycle;
  \draw[very thick,c4] ([xshift=-1.5cm,yshift=-8cm]current page.center) 
  arc(180:0:2);
  \draw[very thick,c4] ([xshift=0.5cm,yshift=-8cm]current page.center) 
  arc(180:0:2);
  \draw[very thick,c4] ([xshift=2.5cm,yshift=-8cm]current page.center) 
  arc(180:0:2);
  \draw[very thick,c4] ([xshift=4.5cm,yshift=-8cm]current page.center) 
  arc(180:0:2);
  \fill[red] ([xshift=2.5cm,yshift=-8cm]current page.center) +(60:2) circle(1.5mm)
  node[above right=2mm]{$\displaystyle\rho=\frac{1+\sqrt{-3}}{2}$};
 \end{scope}
 %
 \fill[c1] ([xshift=2cm,yshift=-8cm]current page.center) rectangle ++ (-12.7,7.7);
 \node[text=white,anchor=west,scale=5,inner sep=0pt] at
 ([xshift=-8cm,yshift=-3.25cm]current page.center) {Some text};
 \node[text=white,anchor=west,scale=2.5,inner sep=0pt] at
 ([xshift=-8cm,yshift=-6cm]current page.center) {Some text};
 %
 \draw[gray,line width=5mm] 
 ([xshift=2mm,yshift=-1mm]current page.south west) rectangle ([xshift=-2mm,yshift=1mm]current
 page.north east);
\end{tikzpicture}
\end{document}

enter image description here

附录：由 Henri Menke 和 Raaja 提供的版本（感谢！）。

\documentclass{article}
\usepackage{amsmath}
\usepackage{tikz}
\usetikzlibrary{intersections,decorations.text}
\definecolor{c1}{RGB}{62, 97, 127}
\definecolor{c2}{RGB}{104, 182, 182}
\definecolor{c3}{RGB}{107, 190, 190}
\definecolor{c4}{RGB}{100, 172, 174}
\definecolor{c5}{RGB}{95, 162, 162}
\begin{document}
\thispagestyle{empty}
\begin{tikzpicture}[overlay,remember picture,font=\sffamily\bfseries]
 \draw[ultra thick,c4,name path=big arc] ([xshift=-2mm]current page.north) arc(150:285:11)
 coordinate[pos=0.225] (x0);
 \begin{scope}
  \clip ([xshift=-2mm]current page.north) arc(150:285:11) --(current page.north
  east);
  \fill[c4!50,opacity=0.25] ([xshift=4.55cm]x0) circle (4.55);
  \fill[c4!50,opacity=0.25] ([xshift=3.4cm]x0) circle (3.4);
  \fill[c4!50,opacity=0.25] ([xshift=2.25cm]x0) circle (2.25);
  \draw[ultra thick,c4!50] (x0) arc(-90:30:6.5);
  \draw[ultra thick,c4] (x0) arc(90:-30:8.75);
  \draw[ultra thick,c4!50,name path=arc1] (x0) arc(90:-90:4.675);
  \draw[ultra thick,c4!50] (x0) arc(90:-90:2.875);
  \path[name intersections={of=big arc and arc1,by=x1}];
  \draw[ultra thick,c4,name path=arc2] (x1) arc(135:-20:4.75);
  \draw[ultra thick,c4!50] (x1) arc(135:-20:8.75);
  \path[name intersections={of=big arc and arc2,by={aux,x2}}];
  \draw[ultra thick,c4!50] (x2) arc(180:50:2.25);
 \end{scope} 
 \path[decoration={text along path,text color=c4,
                 raise = -2.8ex,
                 text  along path,
                 text = {|\sffamily\bfseries|02/18/2019},
                 text align = center,
             },
             decorate
         ] ([xshift=-2mm]current page.north) arc(150:245:11);
 %
 \begin{scope}
  \path[clip,postaction={fill=c3}]
  ([xshift=2cm,yshift=-8cm]current page.center) rectangle ++ (4.2,7.7);
  \draw[c5,ultra thick,fill=c2] ([xshift=0.5cm,yshift=-8cm]current page.center)
   ([xshift=0.5cm,yshift=-8cm]current page.center)  arc(180:60:2)
    |- ++ (-3,6) --cycle;
  \draw[ultra thick,c5] ([xshift=-1.5cm,yshift=-8cm]current page.center) 
  arc(180:0:2);
  \draw[ultra thick,c5] ([xshift=0.5cm,yshift=-8cm]current page.center) 
  arc(180:0:2);
  \draw[ultra thick,c5] ([xshift=2.5cm,yshift=-8cm]current page.center) 
  arc(180:0:2);
  \draw[ultra thick,c5] ([xshift=4.5cm,yshift=-8cm]current page.center) 
  arc(180:0:2);
  \fill[red] ([xshift=2.5cm,yshift=-8cm]current page.center) +(60:2) circle(1.5mm)
  node[above
  right=2mm,text=c5!80!black]{$\rho:=\dfrac{1+\sqrt{-3}}{2}$};
 \end{scope}
 %
 \fill[c1] ([xshift=2cm,yshift=-8cm]current page.center) rectangle ++ (-12.7,7.7);
 \node[text=white,anchor=west,scale=5,inner sep=0pt] at
 ([xshift=-8cm,yshift=-3.25cm]current page.center) {Some text};
 \node[text=white,anchor=west,scale=2.5,inner sep=0pt] at
 ([xshift=-8cm,yshift=-6cm]current page.center) {Some text};
 %
 \draw[gray,line width=5mm] 
 ([xshift=2mm,yshift=-1mm]current page.south west) rectangle ([xshift=-2mm,yshift=1mm]current
 page.north east);
\end{tikzpicture}
\end{document}

enter image description here

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