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Animation of building up a graph

Iuval Clejan
Posted 3 days ago

I have a graph that has nodes and (weighted, not directed, but this is not essential to be displayed) edges that is gradually built up in a procedural loop. How can I show this in an animation? Is there a way to make Animate[] use the looping parameter, which is also used to run the code to build the graph? Or is there some other way? I haven't debugged my program yet, so I haven't posted it here. I was also hoping to use the graphical animation to debug it.
POSTED BY: Iuval Clejan
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Iuval Clejan
Iuval Clejan
Posted 1 day ago

That worked, thanks!

POSTED BY: Iuval Clejan

Just an idea: start with the full final graph, but colored white, or very light. Then switch the colors on in succession.
POSTED BY: Gianluca Gorni
Iuval Clejan
Iuval Clejan
Posted 2 days ago

Also a third issue is I would like to have edge weights displayed proportional to line thickness (I have a matrix that keeps track of these weights, but I didn't use it in the example above), but I don't know how to do that.
POSTED BY: Iuval Clejan
Iuval Clejan
Iuval Clejan
Posted 2 days ago

Super helpful, thanks. However, still 2 issues 1. When I use VertexAdd, I can't just add a label for the vertex added. I have to add all of the labels, because it erases previous labels. Not a big deal 2. Big deal: the display keeps jumping between different parts of the graph, switching their positions. I know it's trying to optimize something visually, but it's quite terrible. Is there a way to turn off the optimization.?I include a test file so you can see what I mean.
POSTED BY: Iuval Clejan

You could use Monitor around whatever looping construct you're using for your code.

As a quick example here I just delete one edge at a time from a complete graph and show each step:

g = CompleteGraph[8];
Monitor[
 Do[
  edge = EdgeList[g] // RandomChoice;
  g = EdgeDelete[g, edge];
  Pause[0.25];
  ,
  16],
 g]
POSTED BY: David Trimas
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