Re: issues with GraphPlot

*To*: mathgroup at smc.vnet.net*Subject*: [mg99207] Re: issues with GraphPlot*From*: sean_incali at yahoo.com*Date*: Wed, 29 Apr 2009 06:42:26 -0400 (EDT)*References*: <gsuisc$drq$1@smc.vnet.net> <gt0s27$ec8$1@smc.vnet.net>

Nevermind, I figured it out. Now another strange issue. Compare the following two codes and look at the location of the edges for the top edge. GraphPlot[{{"B" -> "A", "( c2 + )"}, {"A" -> "B", "( c1 + )"}}, DirectedEdges -> True, VertexLabeling -> True, VertexRenderingFunction -> ({White, EdgeForm[Black], Disk[#, .05], Black, Text[#2, #1]} &), EdgeLabeling -> True, EdgeRenderingFunction -> ({Arrowheads[Medium], Arrow[#1, 0.1], Inset[Text[#3], Mean[#1], Background -> White]} &), PlotStyle -> Thickness[0.005]] GraphPlot[{{"B" -> "A", "( c2 + )"}, {"A" -> "B", "( c1 + )"}}, DirectedEdges -> True, VertexLabeling -> True, VertexRenderingFunction -> ({White, EdgeForm[Black], Disk[#, .05], Black, Text[#2, #1]} &), EdgeLabeling -> True, PlotStyle -> Thickness[0.005]] What expains the lowering of the top label in the top code? On Apr 27, 2:24 am, sean_inc... at yahoo.com wrote: > Where would the Inset line go? > > On Apr 25, 10:39 pm, "Sjoerd C. de Vries" <sjoerd.c.devr... at gmail.com> > wrote: > > > For the label: this is something hat the EdgeRenderingFunction should > > do. Insert something like Inset[Text[#3], Mean[#1]] in what you > > already have. > > > Cheers -- Sjoerd > > > On Apr 25, 10:50 am, sean_inc... at yahoo.com wrote: > > > > Hello group, > > > > A few things that I just can't figure out. > > > > 1. EdgeRenderingFunction ignores edge labels. > > > > GraphPlot[{{"B" -> "A" , "+"}, {"A" -> "B", "+"}}, > > > DirectedEdges -> True, VertexLabeling -> True, > > > VertexRenderingFunction -> ({White, EdgeForm[Black], Disk[#, .05], > > > Black, Text[#2, #1]} &), EdgeLabeling -> True, > > > EdgeRenderingFunction -> ({ Arrowheads[Medium], > > > Arrow[#1 , 0.07]} &), PlotStyle -> Thickness[0.005]] > > > > 2. As it is, above code produces a graph that is stretched > > > horizontally a bit too much. About the half the horizontal width work= s > > > better for me. How do I accomplish that? AspectRatio-> 1/GoldenRatio > > > doesn't work since disk gets stretch also. > > > > 3. For node A to appear on the left, "B"-> "A" has to be defined > > > first. If I reverse it, then the node B will appear on the left. What > > > is the reason for this? > > > > Thanks in advance for any info. > > > > Sean