Eckerang main patch 98381

ER-Diagramm/Beispiel_ER-Diagramm.tex

+\documentclass[a4paper]{scrartcl}
+\usepackage{tikz}
+\usepackage[utf8]{inputenc}
+\usepackage[ngerman]{babel}
+\usepackage{tikz-er2}
+
+\usetikzlibrary{arrows.meta}
+\usetikzlibrary{calc}
+\usetikzlibrary{decorations.pathmorphing}
+\usetikzlibrary{positioning}
+\usetikzlibrary{shapes}
+
+\tikzstyle{every entity}=[fill=orange!20,draw=orange,thick]
+\tikzstyle{every relationship}=[fill=green!20,draw=green,thick,aspect=1.5]
+\tikzstyle{every attribute}=[draw=yellow,fill=yellow!20,thick]
+\tikzstyle{every isa}=[draw=blue!50,fill=blue!20,thick]
+\tikzstyle{every pin edge}=[draw]
+  
+\begin{document}
+\begin{tikzpicture}
+\node[relationship] (arbeitenfuer) {arbeitenF"ur};
+\node[entity,pin={[attribute]120:\uline{PersNr}},pin={[attribute]180:Name},pin={[attribute]240:Fachgebiet}] (assistent) [left=of arbeitenfuer] {Assistent}
+	edge (arbeitenfuer);
+\node[entity,pin={[attribute]60:Rang},pin={[attribute]0:Raum},pin={[attribute]300:Name},pin={[attribute]240:\uline{PersNr}}] (professor) [right=of arbeitenfuer] {Professor}
+	edge (arbeitenfuer);
+
+\node[relationship,pin={[attribute]180:Note}] (pruefen) [above=of arbeitenfuer] {pr"ufen}
+	edge (professor);
+\node[relationship] (lesen) [right=of pruefen] {lesen}
+	edge (professor);
+
+\node[relationship] (hoeren) [above=of pruefen] {h"oren};
+\node[entity,pin={[attribute]150:\uline{MatNr}},pin={[attribute]180:Name},pin={[attribute]210:Semester}] (student) [left=of hoeren] {Student}
+	edge (pruefen)
+	edge (hoeren);
+\node[entity,pin={[attribute, pin distance=1cm]20:\uline{VorlNr}},pin={[attribute, pin distance=1cm]0:SWS},pin={[attribute, pin distance=1cm]340:Titel}] (vorlesung) [right=of hoeren] {Vorlesung}
+	edge (pruefen)
+	edge (lesen)
+	edge (hoeren);
+
+\node[relationship] (voraussetzen) [above=of vorlesung] {voraussetzen};
+	\draw (voraussetzen.-55) edge node[right] {Nachf.} (vorlesung.50)
+	(voraussetzen.-125) edge node[left] {Vorg"anger} (vorlesung.130);
+
+\end{tikzpicture}
+\end{document}