Re: [graph-tool] gt.graph_draw throwing error

14 Dec 2016

      Hi,

Indeed there is a bug in the interactive drawing for large graphs. I will
fix this soon.

In the meantime, a simple workaround is to get the vertex positions explicitly:

    pos = gt.sfdp_layout(lc)
    gt.graph_draw(lc, pos=pos, vertex_size=deg)

Best,
Tiago

On 12.12.2016 17:56, Snehal Shekatkar wrote:
...
Hello Tiago,
Thanks for the reply. I have attached my full code along with the necessary
data file. Can you please try to run it and see what is the problem?
Thank you
Snehal
On Mon, Dec 12, 2016 at 5:32 PM, Tiago de Paula Peixoto <tiago@skewed.de
<mailto:tiago@skewed.de>> wrote:
On 10.12.2016 07:06, Snehal Shekatkar wrote:
    > Hello all,
    >
    > I am encountering a strange error in the usual gt.graph_draw when I add
    > vertex_size = degree. It works well every time but this time it is not
    > working. My code:
    >
    > G = gt.Graph(directed = False)
    > G.add_edge_list(edges, hashed = True, string_vals = True)
    > gt.remove_parallel_edges(G)
    > lc = gt.Graph(gt.GraphView(G, vfilt = gt.label_largest_component(G)),
    prune
    > = True)
    >
    > deg = lc.new_vertex_property('int')
    > for v in lc.vertices():
    >     deg[v] = v.out_degree()
    >
    > print(lc)
    > gt.graph_draw(lc, vertex_size = deg)
    >
    > And I am getting the following error:
    >
    > Traceback (most recent call last):
    >   File "/usr/lib/python3/dist-packages/graph_tool/draw/gtk_draw.py", line
    > 503, in draw
    >     self.fit_to_window(ink=False)
    >   File "/usr/lib/python3/dist-packages/graph_tool/draw/gtk_draw.py", line
    > 724, in fit_to_window
    >     cr)
    >   File "/usr/lib/python3/dist-packages/graph_tool/draw/cairo_draw.py",
    line
    > 1319, in fit_to_view
    >     font_size, cr)
    >   File "/usr/lib/python3/dist-packages/graph_tool/draw/cairo_draw.py",
    line
    > 1292, in get_bb
    >     x_delta = [x_range[0] - (pos_x.fa - delta).min(),
    > ValueError: operands could not be broadcast together with shapes (4,)
    (3397,)
    >
    > I have 3397 vertices in my graph. I would greatly appreciate any help.
    > Thanks in advance.
I can't reproduce this. Please provide a complete, self-contained program
    that shows the error. (In the example above the list of edges is missing).
Best,
    Tiago
--
    Tiago de Paula Peixoto <tiago@skewed.de <mailto:tiago@skewed.de>>
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Snehal Madhukar Shekatkar
Pune
India
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Tiago de Paula Peixoto <tiago@skewed.de>