Hello Giorgos,
On Tue, May 12, 2009 at 03:00:43PM +0200, Giorgos Logiotatidis wrote:
> I use pyx library to hack a python parser of a network map. I based my
> work on this [1] example. I 'm searching for a way to label the arcs
> connecting the nodes but I haven't managed to find anything since it's
> the first time I use pyx and looks really complicated. Does anyone know
> a way to do this?
In principal, you have (at least;-) two possibilities to label the arcs:
a) you can apply a graph axis (see e.g.
http://pyx.sourceforge.net/examples/axis/painter.html) to each arc,
and then deactivate the numbers and only keep the title
b) you place the label as an independent text in the vicinity of the
arc.
I would propose the first way, e.g (changed from the example code):
from pyx import *
c = graph.axis.pathaxis(path.curve(0, 0, 3, 0, 1, 4, 4, 4),
graph.axis.linear(parter=None, min=0, max=1,title="axis title"))
c.writeEPSfile("title")
By setting the parter to None, I avoid the ticks and keep only the axis
title which is automatically centered and rotated.
HTH,
Axel
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