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Re: GraphPlot bug? (missing self-loop)
*To*: mathgroup at smc.vnet.net
*Subject*: [mg121658] Re: GraphPlot bug? (missing self-loop)
*From*: Alan <alan.isaac at gmail.com>
*Date*: Sat, 24 Sep 2011 22:33:18 -0400 (EDT)
*Delivered-to*: l-mathgroup@mail-archive0.wolfram.com
*References*: <j5f68l$q85$1@smc.vnet.net> <j5hdj8$7jl$1@smc.vnet.net>
*Reply-to*: comp.soft-sys.math.mathematica at googlegroups.com
Follow up question. The code below almost works how I want, but the last line produces a graph that does not show node c. How can I get node c to display when there are no edges to it? (I know I can do this with Graph by providing a list of nodes, but how to do it with GraphPlot?)
Thanks,
Alan Isaac
abcGraphPlot[rules_] := GraphPlot[rules,
VertexLabeling -> True,
MultiedgeStyle -> False,
EdgeRenderingFunction -> ({Red, Arrowheads[0.05],
Arrow[#1, 0.15]} &),
DirectedEdges -> True,
SelfLoopStyle -> 0.3,
VertexCoordinateRules -> {a -> {1, Sqrt[3]}, b -> {0, 0},
c -> {2, 0}},
VertexRenderingFunction -> ({GrayLevel[0.9], EdgeForm[Black],
Disk[#, .15], Black, Text[#2, #1]} &),
ImagePadding -> 10,
ImageSize -> 200]
abcGraphPlot[{a -> a, a -> b, b -> a, c -> c}]
abcGraphPlot[{a -> a, a -> b, b -> a}]
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