*Hi everyone, I come back with my problem with purge but on a different perspective. It seems that there is really a weird thing going on (or I missed something which is highly possible).* *The code is the following :* _graph.vertex_properties["_graphml_vertex_id"] = _name _graph.vertex_properties["location"] = _position _graph.edge_properties["_graphml_edge_id"] = _edgeName _graph.edge_properties["speed"] = _speed _graph.edge_properties["time"] = _time _graph.edge_properties["capacity"] = _capacity _graph.edge_properties["vehicles"] = _vehicles _graph Out[27]: <Graph object, directed, with 2622 vertices and 8765 edges at 0x1443a3d0> *Starting from this graph, I extract the strongly connected component* _sccFiltered = gt.GraphView(_graph, vfilt = topo.label_largest_component(_graph)) _scc = gt.Graph(_sccFiltered) _scc.purge_vertices() _scc.purge_edges() _scc Out[28]: <Graph object, directed, with 2554 vertices and 8689 edges, edges filtered by (<PropertyMap object with key type 'Edge' and value type 'bool', for Graph 0x144417d0, at 0x14457450>, False), vertices filtered by (<PropertyMap object with key type 'Vertex' and value type 'bool', for Graph 0x144417d0, at 0x1442abd0>, False) at 0x144417d0> *Now if I save the graph with* _scc.save('network-busesAndTrains.xml.gz') *the saved graph is all screwed up. The property maps do not correspond to the right vertices. But if I do before saving* _scc.vertex_properties['origin'] = _origin _scc.vertex_properties['destination'] = _destination _scc.vertex_properties["_graphml_vertex_id"] = _name _scc.vertex_properties["location"] = _position _scc.edge_properties["_graphml_edge_id"] = _edgeName _scc.edge_properties["speed"] = _speed _scc.edge_properties["time"] = _time _scc.edge_properties["capacity"] = _capacity _scc.edge_properties["vehicles"] = _vehicles *then everything is all right (all the properties must be included).* *I will save the two networks tomorrow for you to check, I just mentioned the behaviour now when it is fresh in my mind.* *All the best,* *F.* On 16 October 2014 18:56, Tiago de Paula Peixoto <tiago@skewed.de> wrote:
On 16.10.2014 12:03, Flavien Lambert wrote:
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.
I cannot investigate further if I cannot reproduce the problem myself. Can't you just save the graph and the properties, together with the code you sent, so that it can be debugged?
Best, Tiago
-- Tiago de Paula Peixoto <tiago@skewed.de>
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