Control Vertex Labeling within GraphPlot

Questions
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1

Hi all,
I have difficulties in controlling the VertexLabelling when plotting a Graph via GraphPlot. I would like to control the Printing of the vertexlabels, wirth some useage of VertexRenderingFunction. Eg. I have a Petersengraph with yellow disks as vertices:

GraphPlot[pete[[1]], VertexCoordinateRules -> pete[[2]],  
VertexRenderingFunction -> ({EdgeForm[{Thick, Red}], FaceForm[Yellow], Disk[#1, 0.1], Text[#2, #1]} &), 
EdgeRenderingFunction -> ({Blue, Line[#1]} &)]

“pete” is my Petersengraph :wink: I used the VertexRenderingFunction as shown in the documentation, but now I would like to control the font and the size of the font in the vertexlabeling. When I tried to do so I realized that I do not understand in full what the “Text[#2, #1]” in this statement does - I could not manage to work the Style command on that Text-Command. Can anyone give me a hint?

Greetings from rainy Germany

Mike

2

Mike, apply the Style function to the #2 argument of Text[#2,#1] you mentioned as in:

GraphPlot[{1 -> 2, 2 -> 3, 3 -> 1}, 
 VertexCoordinateRules -> {1 -> {0, 0}, 2 -> {0, 1}, 3 -> {1, 0}}, 
 VertexRenderingFunction -> ({White, EdgeForm[Black], Disk[#, 0.1], 
     Text[Style[#2, Black, FontFamily -> "Helvetica", 
       FontSize -> 18], #1]} &)]
3

Thank you, Lee, this helped me, but I forgot to post a reply - so thanks again :slight_smile:

Greetings from Germany

Mike