Document Classes ⇒ Tikz Nodestyle

[Jones Jonsen]

Good evening,

i am trying to draw an ER-Modell, but unfortunately some node styles are missing. So I tried to build up the styles of the nodes myself...
That didn't work that well, actually i could not find a way to draw a double circle (a double ellipse actually ) around one node. here's what i did:

Code: Select all

...
\usepackage{tikz}
\usetikzlibrary{er}
\usepgflibrary{shapes.geometric}
\begin{tikzpicture}
	[ multiA/.style ={draw =black, line width=2mm,shape=ellipse, fill=black!5, thick}]
\node [multiA] (b) at (0,0) {Hello};
\end{tikzpicture}
...

Thats just one ellipse, but where to get the second one?

I tried to use the preaction and postaction command but i think it does not work properly with nodes.
Maybe one of you has a good idea how i could create such a style

greetings Jones

[gmedina]

Hi,

you could use the double key, as the following simple example illustrates:

Code: Select all

\documentclass{article}
\usepackage{tikz}
\usepgflibrary{shapes.geometric}

\begin{document}

\begin{tikzpicture}
  [every rectangle node/.style={draw},
   every ellipse node/.style={draw,double}]
  \draw (0,0) node[rectangle] {A} -- (2,0) node[rectangle] {C};
  \draw (1,1) node[ellipse] {Hello} -- (1,-1) node[ellipse] {Bye};
\end{tikzpicture}

\end{document}

Refer to the pgfmanual for further information (specially, section 14.3.5 Graphic Parameters: Double Lines and Bordered Lines).

[Jones Jonsen]

Thanks a lot, that's exactly what I was looking for .