On 07.08.2016 07:08, Enigma Fish wrote:
> Dear graph-tool owner and subscribers,
>
> I would like to draw the largest component of a directed graph g, where the vertex size = the out degree.
> Here's my code:
> g = load_graph(inFile)
> g=GraphView(g,vfilt=label_largest_component(g, directed=False)) This is a bug. I will fix it soon.
> g.purge_vertices()
> deg =g.degree_property_map("out")
> deg.a = (sqrt(deg.a) * 0.5 + 0.4)+1
> graph_draw(g, vertex_size=deg,output="test1.pdf")
>
> But I keep getting the following error whenever I try to draw it:
> Traceback (most recent call last):
> File "/Users/enigmaFish/PycharmProjects/project/paint. py", line 49, in <module>
> graph_draw(g, vertex_size=deg,output="test1.pdf")
> File "/opt/local/Library/Frameworks/Python.framework/ Versions/2.7/lib/python2.7/ site-packages/graph_tool/draw/ cairo_draw.py", line 1138, in graph_draw
> pad, cr)
> File "/opt/local/Library/Frameworks/Python.framework/ Versions/2.7/lib/python2.7/ site-packages/graph_tool/draw/ cairo_draw.py", line 1312, in fit_to_view
> font_size, cr)
> File "/opt/local/Library/Frameworks/Python.framework/ Versions/2.7/lib/python2.7/ site-packages/graph_tool/draw/ cairo_draw.py", line 1285, in get_bb
> x_delta = [x_range[0] - (pos_x.fa - delta).min(),
> ValueError: operands could not be broadcast together with shapes (47579,) (10438,)
>
> Note that g is <Graph object, directed, with 47579 vertices and 38781 edges at 0x1292a15d0>
> Upon filtering, it becomes <GraphView object, directed, with 10438 vertices and 12388 edges, edges filtered by (<PropertyMap object with key type 'Edge' and value type 'bool', for Graph 0x1292bcd10, at 0x1292cf5d0>, False), vertices filtered by (<PropertyMap object with key type 'Vertex' and value type 'bool', for Graph 0x1292bcd10, at 0x1292cf110>, False) at 0x1292bcd10>
In the meantime, a simple workaround is to replace
g.purge_vertices()
with
g = Graph(g, prune=True)
Best,
Tiago
--
Tiago de Paula Peixoto <tiago@skewed.de>
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