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Re: issues with GraphPlot

  • To: mathgroup at smc.vnet.net
  • Subject: [mg99118] Re: issues with GraphPlot
  • From: dh <dh at metrohm.com>
  • Date: Mon, 27 Apr 2009 05:25:23 -0400 (EDT)
  • References: <gsuisc$drq$1@smc.vnet.net>


Hi Sean,

to get an narrower picture you ,may use "ImageSize". But as this simply 

makes the picture smaller, you need to adapt the circle size and arrows. 

E.g.:

GraphPlot[{{"B" -> "A", "+"}, {"A" -> "B", "+"}},

  DirectedEdges -> True, VertexLabeling -> True,

  VertexRenderingFunction -> ({White, EdgeForm[Black], Disk[#, .1],

      Black, Text[#2, #1]} &), EdgeLabeling -> True,

  EdgeRenderingFunction -> ({Arrowheads[Medium], Arrow[#1, 0.12]} &),

  PlotStyle -> Thickness[0.005], ImageSize -> 200 ]

Daniel



sean_incali 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 works

> 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

> 

> 

> 

> 

> 




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