The option settings False
and None
are not listed among documented typical settings, but both MultiedgeStyle -> False
and MultiedgeStyle -> None
give the desired result.
GraphPlot[{1 -> 2, 2 -> 1},
MultiedgeStyle -> False,
DirectedEdges -> True, VertexLabeling -> True]
![enter image description here](https://cdn.statically.io/img/i.sstatic.net/L68qm.png)
GraphPlot[{1 -> 2, 2 -> 1, 1 -> 3, 3 -> 2},
MultiedgeStyle -> False,
DirectedEdges -> True, VertexLabeling -> True]
![enter image description here](https://cdn.statically.io/img/i.sstatic.net/kI6rM.png)
GraphPlot[{1 -> 2, 2 -> 1, 1 -> 3, 3 -> 2},
MultiedgeStyle -> None,
DirectedEdges -> True, VertexLabeling -> True]
![enter image description here](https://cdn.statically.io/img/i.sstatic.net/q1IsI.png)
Notes:
- This works in version 9 (windows 10) and in version 11.2 on Wolfram Cloud.
- After major updates in version 12.0,
GraphPlot
usage/options changed completely. Use GraphComputation`GraphPlotLegacy
instead of GraphPlot
for the code above to work.