On 09.02.2015 10:11, Luigi wrote:
Hi, I have troubles understanding the "vertex_pie_fractions" parameter in graph_draw. I would like to draw different pie charts for each of the n vertices of a graph. In my case, each pie must be divided in two fractions. I try to assign to the "vertex_pie_fractions" parameter a nx2 list, or an equivalent numpy array with no success.
I wonder if it is possible to have a different pie chart for each vertex, or if I'm wrong in coding.
You have to use a property map. For example: g = collection.data["lesmis"] pie_fracs = g.new_vertex_property("vector<double>") for v in g.vertices(): pie_fracs[v] = numpy.random.dirichlet([1, 1, 1]) graph_draw(g, pos=g.vp["pos"], vertex_shape="pie", vertex_pie_fractions=pie_fracs, output="pie.png") You can see the result attached. Best, Tiago -- Tiago de Paula Peixoto <tiago@skewed.de>
