Re: [Boost-users] Regarding property maps

Hey alex, Thanks a lot for the reply.That worked for me.But can you help me understand the following in your code, 1.Second argument of the constructor, member_property_map(Map map, Type bundle_type::* member) : m_map(map), m_member(member) {} 2.What does the put_get_helper class actually do? Thanks in advance. On Tue, Sep 22, 2015 at 5:44 PM, alex wrote:

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Rohith Reddy wrote: I have been working on a graph using boost graph library with edge properties as bundled properties.I have the following struct as my edge property,

typedef struct Edge{ int id; int source; int target; float cost; float reverse_cost; } Edge;

Provided that I am inserting the data correctly,how do I get a property map for each of the elements of the struct,that is a property map for id,a property map for the source and so on.And moreover I also want to know how to extract the type of property map,as it is required to pass its type to other function as a template parameter.

Thanks in advance.

I had the same problem and developed a member_property_map to access the member of a bundled map.

It allows the following:

typedef boost::vector_property_map<edge> bundle_map_type; typedef blink::member_property_map cost_map_type;

bundle_map_type bundle_map; cost_map_type cost_map(bundle_map, &edge::cost);

See attached for the implementation and example.

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