Using [midway] to label a curved path at its centre

Question

I am trying to label two curved paths connecting two nodes with labels placed at their centres using the node[midway] option. This is something that should be very simple but I have not been able to come up with something that works. Here is my MWE with my question as two comments:

\documentclass[crop,border=0]{standalone}
\usepackage{tikz}
\begin{document}
\begin{tikzpicture}[>=latex]
    \node [draw,rectangle] (Start) {Start};
    \node [draw,rectangle] (Finish) [right=2cm] {Finish};
    \draw [->,out=90,in=90,looseness=0.75] (Start.north) to (Finish.north);
    % I want to label this path using [midway,below] as {forward}
    \draw [->,out=-90,in=-90,looseness=0.75] (Finish.south) to (Start.south);
    % I want to label this path using [midway,above] as {reverse}
\end{tikzpicture}
\end{document}

Can someone please point me in the right direction.

I also appreciate comments to improve code elegance or simplicity.

Thank you.

score 19 · Accepted Answer · edited Jan 01 '12 at 18:10

19

You must put the node direct after to

\documentclass[crop,border=0]{standalone}
\usepackage{tikz}
\begin{document}
\begin{tikzpicture} [>=latex]
    \node [draw,rectangle] (Start) {Start};
    \node [draw,rectangle] (Finish) [right=2cm] {Finish};
    \draw [->,out=90,in=90,looseness=0.75] (Start.north) to node[above]{above}  (Finish.north);
    \draw [->,out=-90,in=-90,looseness=0.75] (Finish.south) to node[below]{below} (Start.south)
      ;
\end{tikzpicture}
\end{document

enter image description here

edited Jan 01 '12 at 18:10

percusse

157,807

answered Jan 01 '12 at 17:45

Marco Daniel

95,681

Thank you. I did not know that [midway] was not needed and that the syntax was simpler. – chandra Jan 01 '12 at 17:58
I am also a beginner^+ in tikz ;-) But I used this combination some days before – Marco Daniel Jan 01 '12 at 18:04
@chandra: I believe that midway (or pos=0.5) is the default so does not need to be specified. See moving a label along the path for more options for label placement. – Peter Grill Jan 01 '12 at 18:11
@Peter Grill: Thank you for the explanation and link to a very helpful example. – chandra Jan 01 '12 at 19:10

Using [midway] to label a curved path at its centre

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