# customizing part style with Tikz

How can I customize part style like below picture?

• This seems to be used in the book by Luis Chaparro - Signals and Systems using MATLAB - Academic Press (2010). – Watson Jan 6 at 10:40

One possibility using TikZ and titlesec:

\documentclass{book}
\usepackage{fourier}% change to lmodern if fourier is no available
\usepackage{tikz}
\usepackage[explicit]{titlesec}

\definecolor{mybluei}{RGB}{0,173,239}
\definecolor{myblueii}{RGB}{63,200,244}
\definecolor{myblueiii}{RGB}{199,234,253}

\renewcommand\thepart{\arabic{part}}

\newcommand\partnumfont{% font specification for the number
\fontsize{380}{130}\color{myblueii}\selectfont%
}

\newcommand\partnamefont{% font specification for the name "PART"
\normalfont\color{white}\scshape\small\bfseries
}

\titleformat{\part}
{\normalfont\huge\filleft}
{}
{20pt}
{\begin{tikzpicture}[remember picture,overlay]
\fill[myblueiii]
(current page.north west) rectangle ([yshift=-13cm]current page.north east);
\node[
fill=mybluei,
text width=2\paperwidth,
rounded corners=6cm,
text depth=18cm,
anchor=center,
inner sep=0pt] at (current page.north east) (parttop)
{\thepart};%
\node[
anchor=south east,
inner sep=0pt,
outer sep=0pt] (partnum) at ([xshift=-20pt]parttop.south)
{\partnumfont\thepart};
\node[
anchor=south,
inner sep=0pt] (partname) at ([yshift=2pt]partnum.south)
{\partnamefont PART};
\node[
anchor=north east,
align=right,
inner xsep=0pt] at ([yshift=-0.5cm]partname.east|-partnum.south)
{\parbox{.7\textwidth}{\raggedleft#1}};
\end{tikzpicture}%
}

\begin{document}

\part{Theory and Application of Continuous-Time Signals and Systems}

\end{document}


The commands \partnumfont and \partnamefont are used to control the font attributes for the number and the label "Part". Feel free to make adjustments (fonts, sizes) according to your needs.