Dear all, I do not understand the behavior of the following code (this is
not a minimal example, I tried to reproduce the problem on a minimal
example but I could not...). I do not get why, when I purge the vertices
and edges after filtering, the properties of the vertices are not
consistent.
Thanks for your help,
Flavien.
_graph = gt.Graph(_originalGraph)
>
> _bus = _graph.new_vertex_property('bool')
> _bus.a = True
> _trainVertices = [_v for _v in _graph.vertices() if _name[_v][:3] == 'stn']
>
> for _v in _trainVertices :
> _bus[_v] = False
>
> print 'original graph #', _graph
> print 'train number # ', len([_v for _v in _graph.vertices() if
> _name[_v][:3] == 'stn']), '\n'
>
>
> _graph.set_vertex_filter(_bus)
> print 'filtered graph #', _graph
> print 'train number #', len([_v for _v in _graph.vertices() if
> _name[_v][:3] == 'stn']), '\n'
>
> _graph.purge_vertices()
> _graph.purge_edges()
> print 'purged graph #', _graph
> print 'train number #', len([_v for _v in _graph.vertices() if
> _name[_v][:3] == 'stn']), '\n'
>
original graph # <Graph object, directed, with 2775 vertices and 9341
edges at 0x313be50>
> train number # 112
>
> filtered graph # <Graph object, directed, with 2663 vertices and 6307 edges,
> edges filtered by (<PropertyMap object with key type 'Edge' and value type
> 'bool', for Graph 0x313be50, at 0x2a3c750>, False), vertices filtered by
> (<PropertyMap object with key type 'Vertex' and value type 'bool', for Graph
> 0x313be50, at 0x2d62610>, False) at 0x313be50>
> train number # 0
>
> purged graph # <Graph object, directed, with 2663 vertices and 6307 edges,
> edges filtered by (<PropertyMap object with key type 'Edge' and value type
> 'bool', for Graph 0x313be50, at 0x313bc50>, False), vertices filtered by
> (<PropertyMap object with key type 'Vertex' and value type 'bool', for Graph
> 0x313be50, at 0x313bb90>, False) at 0x313be50>
> train number # 109
>
>
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