chapter style

article.tex

@@ -1,4 +1,56 @@
-\documentclass[12pt]{article}
+\documentclass[
+  fontsize=11pt
+]{scrbook}
+\usepackage[utf8]{inputenc}
+\usepackage[T1]{fontenc}
+\usepackage{lmodern}
+\usepackage[ngerman]{babel}
+\usepackage[automark]{scrlayer-scrpage}
+
+\usepackage{wallpaper}
+\usepackage{tikz}
+\usepackage{blindtext}
+
+\newcommand\chapterillustration{}
+%https://komascript.de/comment/5067#comment-5067
+\setkomafont{chapter}{\huge}
+\makeatletter
+% Hack: Eigenen, rudimentären Kapitelstil definieren.
+\newcommand*{\scr@dsc@def@style@xchapter@command}[1]{%
+  \scr@dsc@def@style@chapter@command{#1}%
+  \expandafter\def\csname @@make#1head\endcsname##1{%
+    \let\orig@raggedchapter\raggedchapter
+    \let\raggedchapter\raggedleft
+    \let\orig@hangfrom\@hangfrom
+    \let\@hangfrom\chapterhang
+    \scr@@makechapterhead{#1}{##1}%
+    \let\@hangfrom\orig@saved@hangfrom
+    \let\raggedchapter\orig@raggedchapter
+  }%
+}
+\makeatother
+\DeclareSectionCommand[style=xchapter]{chapter}
+\newbox\chapternumberbox
+\newcommand{\chapterhang}[2]{%
+  %\ThisULCornerWallPaper{1}{\chapterillustration}
+  \tikz[remember picture,overlay] \node[opacity=1.0,inner sep=0pt] at (current page.north){\includegraphics[width=\paperwidth,height=.5\paperheight]{\chapterillustration}};%
+  \savebox\chapternumberbox{\fontsize{100}{100}\normalfont\sffamily\bfseries
+    \thechapter}%
+  \parbox[t]{\dimexpr\linewidth-\wd\chapternumberbox-1em}{%
+    \raggedleft
+    \makebox[1em][l]{\normalfont\normalsize\slshape\chapapp}\\
+    #2%
+  }\quad
+  \raisebox{-1.75\baselineskip}{\usebox\chapternumberbox}\par
+}
+
+\usepackage{mwe}
 \begin{document}
-Hi!
+\tableofcontents
+\renewcommand\chapterillustration{six-computers-chips-circuits}
+\setcounter{chapter}{3}
+\chapter{Erarbeitete technische Prinzipien}
+\Blindtext
+%\blinddocument
+
 \end{document}