Re: [Boost-users] [graph] property_map from bundled properties in a subgraph, how?

Hi! I was searching the forum/list to find a solution for my problem and found this thread. My problem is exactly the same, since I changed from adjacency_list to subgraph, I can't get my property_maps working. I searched for hours without success, so I every hint is welcomed... Christian Rössel-2 wrote:

In the beginning I had a bidirectional graph with bundled properties and I used a property map from the edge's bundled properties:

#include #include using namespace boost;

struct VertexProperty { // ... };

struct EdgeProperty { double length_; // ... };

typedef adjacency_list Graph;

int main () { Graph g; typedef property_map::type EdgeWeightMap; EdgeWeightMap ewm = get (&EdgeProperty::length_, g); // use ewm in an algorithm ... return 0; }

Everthing worked fine. Then, I had to change the graph-type from adjacency_list to subgraph ...

typedef subgraph< adjacency_list, property > > Subgraph;

int main () { Subgraph g; typedef property_map::type EdgeWeightMap; EdgeWeightMap ewm = get (&EdgeProperty::length_, g); // use ewm in an algorithm ... return 0; }

... and got compile errors... ...

Is there a way to use property maps from bundled properties in a subgraph? If not, can you give me a hint for a workaround, please.

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