[boost] How to manage Graph Property ?

Subject: [boost] How to manage Graph Property ?
From: nguyen vu tri (nvutri_at_[hidden])
Date: 2010-04-15 16:59:20

Hi everyone,
I really need help to figure out the following problem.
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First, I create a Vertex Property:
typedef property < vertex_index_t, int> VertexProperties;

Then, I create an adjacency graph type:
typedef adjacency_list < vecS, vecS, directedS, VertexProperties > Graph;

Now I can call:
VertexProperties V1;

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My question is:
          Is there anyway that I can access *VertexProperties *through *
Graph* to create the same variable *V1* ?.

Thanks, in advance, for your time.
I appreciate all suggestions,
Tri Nguyen.