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\NeedsTeXFormat{LaTeX2e}[1995/12/01]
\ProvidesPackage{stys/Beautybook-cover-birkar}[2022/05/21,v1.0]
\usepackage{anyfontsize} % 提供\fontsize{}{}\selectfont命令
\usepackage{etoolbox} %提供自定义封面选项接口
\usepackage[dvipsnames,svgnames,x11names,table]{xcolor}%颜色宏包 % Driver-independent color extensions
\usepackage{tikz}
\usetikzlibrary{intersections, positioning, fit, backgrounds, shapes, fadings,
decorations.pathmorphing, graphs, quotes, angles, calc, through, backgrounds} % %Tikz指令库
\usepackage{graphicx} %插图
\usetikzlibrary{calc,fadings,patterns}
\usepackage{adjustbox} %修正minipage顶部对齐问题
% Define the layers to be used in document.
% *****************************************************
\pgfdeclarelayer{background} %背景%底层
\pgfdeclarelayer{foreground} %上层
\pgfdeclarelayer{top} %顶部
\pgfdeclarelayer{bottom} %底部
\pgfsetlayers{bottom,background,main,foreground,top}
\definecolor{RED}{RGB}{220, 41, 26}
\definecolor{arc color}{HTML}{546E7A}
\tikzfading[name=fade right,
right color =transparent!100,
left color=transparent!0]
\tikzfading[name=fade left,
left color =transparent!100,
right color=transparent!50]
\tikzfading[name=fade up,
top color =transparent!100,
bottom color=transparent!50]
\tikzfading[name=fade down,
bottom color =transparent!100,
top color=transparent!50]
\makeatletter
\newcommand*\makecover{
%% Use the Tikz library positioning and clear the page header and footer
\usetikzlibrary{positioning}
\thispagestyle{empty}
\begin{tikzpicture}[remember picture,overlay]
\begin{pgfonlayer}{bottom}
\fill[coverfgcolor]
(current page.north west) rectangle (current page.south east);% 填充封面背景颜色 (coverbgcolor)
\fill[RED]
([shift={(2.05cm,0)}]current page.north west) rectangle ([shift={(2.35cm,-6cm)}]current page.north west);
\fill[coverfgcolor!80,opacity=0.5]
([shift={(0,-2cm)}]current page.north west) arc (90:-90:.3\paperheight) --cycle;
\fill[coverfgcolor!80,opacity=0.5]
([shift={(0,-4cm)}]current page.north east) arc (90:270:.2\paperheight) --cycle;
\fill[coverfgcolor!80]
(current page.north west) rectangle ([shift={(2cm,0)}]current page.south west);
\begin{scope}[opacity=0.8]
\coordinate (triangleA) at ([shift={(1cm,-1cm)}]current page.north);
\coordinate (triangleB) at ([shift={(-.85\linewidth,-.46\paperheight)}]triangleA);
\coordinate (triangleC) at ([shift={(.52\linewidth,-.46\paperheight)}]triangleA);
\draw[name path=triangle,very thick,coverfgcolor!70!white]
(triangleA)--(triangleB)--(triangleC)--cycle;
\draw[name path=circle,very thick,coverfgcolor!70!white]
([shift={(-1.6cm,-7.3cm)}]triangleA) coordinate (O) circle(6cm);
%标注每个交点坐标
\fill [name intersections={of=triangle and circle, name=i, total=\t}]
[coverbar,opacity=0.5, every node/.style={above left, white, opacity=1}]
\foreach \s in {1,...,\t}{(i-\s) circle (1em) node {}};
\draw[name path=l,very thick,coverfgcolor!70!white] (i-1) -- (triangleC);
\draw[very thick,coverfgcolor!70!white] (i-6) -- (triangleB);
\draw[name path=l2,very thick,coverfgcolor!70!white] (i-4) -- (triangleA);
\fill[name intersections={of=l and circle,name=j,total=\l}]
[coverbar,opacity=0.5, every node/.style={above left, white, opacity=1}]
\foreach \c in {1,...,\l}{(j-\c) circle (1em) node {}};
\fill[name intersections={of=l2 and l,name=jj,total=\ll}]
[coverbar,opacity=0.5, every node/.style={above left, white, opacity=1}]
\foreach \cc in {1,...,\ll}{(jj-\cc) circle (1em) node {}};
\end{scope}
\end{pgfonlayer}
\begin{pgfonlayer}{foreground}
\fill[coverbar,opacity=.5]
([yshift=2\outermarginwidth]current page.west) rectangle ([xshift=\outermarginwidth,yshift=-.2\outermarginwidth]current page.west); % 最左侧装饰矩形
\end{pgfonlayer}
\shade[left color=coverfgcolor,right color=coverfgcolor!60,opacity=.3]
([xshift=\outermarginwidth,yshift=2\outermarginwidth]current page.west) rectangle (current page.south east); % 标题背景大矩形
\node[anchor=south] at ([xshift=.3\outermarginwidth,yshift=-.4\covershift]current page.north) {%
\parbox{.8\paperwidth}{
\filright
\color{white}\sffamily\fontsize{20}{23}\selectfont\@bookseries}
}; %系列丛书名称
\node[ anchor=south] at ([xshift=.3\outermarginwidth,yshift=-.57\paperheight]current page.north)
{\parbox{.8\paperwidth}{%
\raggedright%
{\renewcommand\baselinestretch{1.1}\selectfont \color{white}\sffamily\bfseries\fontsize{40}{40}\selectfont\@title\\[0.5ex]
\color{white}\sffamily\fontsize{30}{30}\selectfont
\ifdefvoid{\@subtitle}{}{\@subtitle}\par}
}};% 封面标题与副标题
\node[anchor=west,font=\sffamily\fontsize{23}{23}\selectfont,text=white] at ([xshift=1.8\outermarginwidth,yshift=-.6\covershift]current page.west) {\@edition};
\node[anchor=west,font=\sffamily\Huge,text=white] at ([xshift=1.8\outermarginwidth,yshift=\covershift]current page.west) {\@author};
\node[left,text=white,font=\rmfamily\Large,] at
([shift={(-1cm,2cm)}]current page.south east) %
{\raisebox{-1.1cm}{\includegraphics[width=0.2\linewidth]{\@presslogo}}\hspace*{-3.5ex}\begin{varwidth}{.4\textwidth}\tikz\draw[white,line width=1.25pt] (0,0)--++(0,1cm);\,\raisebox{.25cm}{\@pressname} \end{varwidth}};%
\end{tikzpicture}%
{\newpage\thispagestyle{empty}}
}
\makeatother
\endinput
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