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schema_13-12-24.tex
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\documentclass[tikz]{standalone}
\usetikzlibrary{shapes,arrows.meta}
\begin{document}
\begin{tikzpicture}
\draw
%%* Attributi:
%% node[draw, circle, inner sep=1pt, fill=black]{}node[right]{\footnotesize A}
%%? Distanza orizzontale: E -(0.25,0.x)- A
%%? Distanza verticale: E -(0,x * 0.22)- A
%%* Cardinalità:
%% node[below right]{\scriptsize $(0,N)$}
%% node[above right]{\scriptsize $(0,N)$}
%% node[midway, above]{\scriptsize $(0,N)$}
%%* Relazione:
%% node[draw, diamond, shape aspect=2, inner sep=3pt, anchor=90](r1){}
%% node[draw, diamond, shape aspect=2, inner sep=0.2pt, anchor=180](r2){R2}
%%* Entità:
%% node[draw, rectangle, anchor=90](e1){}
%%? Distanza verticale: E -(0.3)- R -(0.3) E
%%? Distanza orizzontale: E -(0.75)- R -(0.75)- E
%%* Convegno
(0,0)node[draw, rectangle, anchor=180](e1){Convegno}
(e1.0)--++(0.75,0)node[draw, diamond, shape aspect=2, inner sep=3pt, anchor=180](r1){}node[midway, above]{\scriptsize $(1,1)$}
(e1.190)--++(-0.25,-0.15)node[draw, circle, inner sep=1pt, fill=white]{}node[left]{\footnotesize Titolo}
(e1.170)--++(-0.25,0.15) node[draw, circle, inner sep=1pt, fill=black]{}node[left]{\footnotesize Codice}
%%* Città
(r1.0)--++(0.75,0)node[draw, rectangle, anchor=180](e2){Città}node[midway, above]{\scriptsize $(0,N)$}
(e2.0)--++(0.1,0)node[draw, circle, inner sep=0.5pt, fill=black](a){}--++(0.65,0)node[draw, diamond, shape aspect=2, inner sep=3pt, anchor=180](r2){}node[midway, below]{\scriptsize $(1,1)$}
(e2.290)--++(0,-0.1)node[draw, circle, inner sep=0.5pt, fill=black](b){}--++(0,-0.34)node[draw, circle, inner sep=1pt, fill=white]{}node[left]{\footnotesize CC}
(e2.250)--++(0,-0.2)node[draw, circle, inner sep=1pt, fill=white]{}node[left]{\footnotesize Città}
(a)++(0,0.2)node[draw, circle, inner sep=1pt, fill=black]{}|-(b)--++(-0.1,0)
%%* Nazione
(r2.0)--++(0.75,0)node[draw, rectangle, anchor=180](e3){Nazione}node[midway, above]{\scriptsize $(0,N)$}
(e3.350)--++(0.25,-0.15)node[draw, circle, inner sep=1pt, fill=white]{}node[right]{\footnotesize Nazione}
(e3.10)--++(0.25,0.15) node[draw, circle, inner sep=1pt, fill=black]{}node[right]{\footnotesize CN}
%%* Materia
(e1.270)--++(0,-0.3)node[draw, diamond, shape aspect=2, inner sep=3pt, anchor=90](r3){}node[midway, left]{\scriptsize $(1,1)$}
(r3.270)--++(0,-0.3)node[draw, rectangle, anchor=90](e4){Materia}node[midway, left]{\scriptsize $(0,N)$}
(e4.190)--++(-0.25,-0.15)node[draw, circle, inner sep=1pt, fill=white]{}node[left]{\footnotesize Materia}
(e4.170)--++(-0.25,0.15) node[draw, circle, inner sep=1pt, fill=black]{}node[left]{\footnotesize CM}
%%* Area
(e4.0)--++(0.75,0)node[draw, diamond, shape aspect=2, inner sep=3pt, anchor=180](r4){}node[midway, above]{\scriptsize $(1,1)$}
(r4.0)--++(0.75,0)node[draw, rectangle, anchor=180](e5){Area}node[midway, above]{\scriptsize $(0,N)$}
(e5.350)--++(0.25,-0.15)node[draw, circle, inner sep=1pt, fill=white]{}node[right]{\footnotesize Area}
(e5.10)--++(0.25,0.15) node[draw, circle, inner sep=1pt, fill=black]{}node[right]{\footnotesize CA}
;
\end{tikzpicture}
\end{document}