Here is a quick example. I also just noticed I get a warning if
overlap='prism'. Thanks for the help.
import graph_tool.all as gt
#Setup graph
g = gt.Graph(directed=False)
center = g.add_vertex()
for _ in xrange(150):
v = g.add_vertex()
g.add_edge(v, center)
#Set node properties
vertex_size = g.new_vertex_property('int32_t')
vertex_size.a = 1
vertex_size[center] = 10
# Draw graphs - 5 examples
# Ex 1 - All nodes size 1 -> works
gt.graphviz_draw(g, vsize=1, output='ex_size1.pdf', overlap='scale')
# Ex 2 - All nodes size 4 -> 1 node may be drawn, typically a blank
canvas
gt.graphviz_draw(g, vsize=4, output='ex_size4.pdf', overlap='scale')
# Ex 3 - Large center vertex -> works with 'scale'
gt.graphviz_draw(g, vsize=vertex_size, output='ex_scale.pdf',
overlap='scale')
# Ex 4 - Large center vertex -> blank canvas with False
gt.graphviz_draw(g, vsize=vertex_size, output='ex_False.pdf',
overlap='False')
# Ex 5 - Prism warning -> still draws
gt.graphviz_draw(g, output='example_prism.pdf', overlap="prism")
# --> Warning: Overlap value "prism" unsupported - ignored
# I thought Prism was the default value. Why do I only get this message
# if I set it explicitly?
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