Using tikz to draw graph with multiple edges between each other
I am trying to draw a (undirected) graph using the Tikz package, such that there exist multiple edges between some nodes in the graph. Is it possible to do such a thing? I tried the following code to try and get atleast two edges between the nodes, but to no avail:
\begin{tikzpicture}
[scale=.8,auto=left,every node/.style={circle,fill=blue!20}]
\node (nA) at (1,10) {A};
\node (nB) at (9,10) {B};
\node (nC) at (5,8) {C};
\node (nD) at (5,6) {D};
\foreach \from/\to in {nA/nC,nA/nD,nC/nB,nD/nB,nC/nA,nD/nA,nB/nD,nB/nC}
\draw (\from)--(\to);
\end{tikzpicture}
Could someone help me out with this? Thanks!
Answer
How about replace the
\draw (\from)--(\to);
with
\path (\from) edge [bend left] (\to);