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how change color of directed edges for GraphPlot

  • To: mathgroup at
  • Subject: [mg87113] how change color of directed edges for GraphPlot
  • From: Murray Eisenberg <murray at>
  • Date: Tue, 1 Apr 2008 03:21:41 -0500 (EST)
  • Organization: Mathematics & Statistics, Univ. of Mass./Amherst
  • Reply-to: murray at

I have a directed graph to display using GraphPlot:


I want to display it using GraphPlot...

   GraphPlot[a, Method -> None, DirectedEdges -> True,
      VertexRenderingFunction -> ({Black, Disk[#1, 0.02]} &)]

... but I want the edges and the arrows to be Black and not the default 

How can one do this WITHOUT having to completely rewrite what the 
default EdgeRenderingFunction->Automatic option does; that is, I still 
want the arrows with their heads in the default position (it looks 
something like 2/3 the way along each arrow).

Murray Eisenberg                     murray at
Mathematics & Statistics Dept.
Lederle Graduate Research Tower      phone 413 549-1020 (H)
University of Massachusetts                413 545-2859 (W)
710 North Pleasant Street            fax   413 545-1801
Amherst, MA 01003-9305

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