Hi,
thanks for the great graph library! My first attempts with boost.graph were
quite successful, but now I'm stuck. My question is: How can I get a
property_map from bundled properties in a subgraph? (boost 1.34.1, g++ and
VC8)
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 this compile error:
In instantiation of `boost::property_map':
subgraph_property_map.cpp:45: instantiated from here
../../vendor/boost_1_34_1-multithread/boost/graph/properties.hpp:355: error: no type named `vertex_bundled' in `class Subgraph'
../../vendor/boost_1_34_1-multithread/boost/graph/properties.hpp:356: error: no type named `edge_bundled' in `class Subgraph'
../../vendor/boost_1_34_1-multithread/boost/graph/properties.hpp:360: error: no type named `vertex_bundled' in `class Subgraph'
../../vendor/boost_1_34_1-multithread/boost/graph/properties.hpp:360: error: `value' is not a member of `<declaration error>'
../../vendor/boost_1_34_1-multithread/boost/graph/properties.hpp:364: error: no type named `vertex_bundled' in `class Subgraph'
../../vendor/boost_1_34_1-multithread/boost/graph/properties.hpp:364: error: `value' is not a member of `<declaration error>'
../../vendor/boost_1_34_1-multithread/boost/graph/properties.hpp:367: error: no type named `vertex_bundled' in `class Subgraph'
../../vendor/boost_1_34_1-multithread/boost/graph/properties.hpp:367: error: `value' is not a member of `<declaration error>'
../../vendor/boost_1_34_1-multithread/boost/graph/properties.hpp:369: error: no type named `vertex_bundled' in `class Subgraph'
../../vendor/boost_1_34_1-multithread/boost/graph/properties.hpp:369: error:
`value' is not a member of `<declaration error>'
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.
Thanks and best regards,
Christian
__
