Imho it's easier to write a few lines of code to plot graphs using plotting primitives, something like code below. S denotes my graph (a simple dictionary, for each key u, S[u] is the list of neighbours), xy is a dictionary which indicates positions of vertices, defined elsewhere as are ms (vertex size) and fs (font size).
G = Graphics()
p = [xy[u] for u in S]
c = [my_color(u) for u in S]
G += scatter_plot (p, markersize = ms, facecolor = c, **kwds)
for u in S:
for v in S[u]:
G += line ([xy[u], xy[v]])
G += sum (text (my_str(u), xy[u], fontsize = fs, zorder = 10) for u in S)
It's that simple, and anything (position, size, color of vertices, font size, text to display for each vertex) is under control.
It may be easier if you know how to do it. :) I could learn a thing or two from studying your code. For me, it's easier for ppurka to make a tracticket and create a new feature :) The problem is it'll take 1 month before it's on our Sage server, but I don't need it that badly. All kidding aside, though this is more of an advanced technique for someone like me, this is a very good thing to know. So, thanks for your answer.
One way is to use figsize to indirectly change the relative size of the labels.
P = graphs.PetersenGraph()
P.show(figsize=[1,1],vertex_size=0,layout='spring')
The output of this is:
Asked: 2012-12-12 16:51:15 +0200
Seen: 1,789 times
Last updated: Mar 31 '14
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