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TikZ: How to draw an arrow in the middle of the line?

I'd like to use Tikz for drawing Feynman diagrams. I found an example in TeXample, but it looks inefficient.

One of the things I would appreciate is that the decoration > would appear midway of each part of the path, say

\draw[mypath] (0,0) -- (1,1) -- (2,1) -- (3,0);

to produce a path formed by three arrows.


  • Is this possible?
  • How should the style by defined?
  • 1
    This would be much more clear if you can provide a MWE. Every path and every segment of the path depends on how you define every path/.style={...} etc. Sorry for the misunderstanding but it's really not clear from your question. But the general answer is that yes it is possible.
    – percusse
    Aug 29, 2012 at 11:22

1 Answer 1


Look at my answer to TikZ: How to draw an arrow in the middle of the line?: I define a style to apply some styles to each segment of a path.

  • I guess it's better to close this as a duplicate. Nice answer by the way.
    – percusse
    Aug 29, 2012 at 9:05
  • @percusse I didn't notice Paul's solution. Thank you for pointing it out. Cheers.
    – Dox
    Aug 29, 2012 at 11:25

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