Using the replied method, my initial difficulty was resolved. However, when I introduce more properties into my vertex bundle, I am baffled again. I figure some fundamental understanding of bundle property is necessary for me(It is appreciated, if someone can hint on this) This time, my graph definition is: ///////////////////////////////////////////////////////////////////// struct Node { int count; int matched_to; std::vector<int> absorb; double mode[3]; double center[2]; int extremes[4]; }; struct Edge { double maxBoundaryPoints; double eWeight; unsigned short nTh; }; //the following provided by Stephan //For accessing Node::mode[3], etc: //pointer to Node-Mode //new specialization of property_map for bundles with arrays namespace boost{ template struct property_map { private: typedef graph_traits<Graph> traits; typedef typename Graph::vertex_bundled vertex_bundled; typedef typename Graph::edge_bundled edge_bundled; typedef typename mpl::if_c<(detail::is_vertex_bundle::value), typename traits::vertex_descriptor, typename traits::edge_descriptor>::type descriptor; typedef typename mpl::if_c<(detail::is_vertex_bundle::value), vertex_bundled, edge_bundled>::type actual_bundle; public: typedef bundle_property_map type; typedef bundle_property_map const_type; }; }; typedef boost::adjacency_list< boost::listS, boost::listS, boost::bidirectionalS, boost::property, Edge> Graph; //////////////////////////////////////////////////////////////////////////// In my appliication, I defined a class GA, containing pointer of type Graph. And my compiling error comes from constructor of GA, as detailed follows: /////////////////////////////////////////////////////////////////// class GA { .... Graph *rowGraph; .... GA(){};//compiling error occurs here GA(*, *, *); .... } GA::GA(*, *, *) {//compiling error occurs here, too } /////////////////////////////////////////////////////// And my compiling error comes from constructor of GA, but it is clearly related from above work-around for accessing bundled array. Any clues? c:\shufei\VCProjects\edison\segm\GA.h(182) : error C2512: 'boost::bundle_property_map' : no appropriate default constructor available with [ Graph=Graph, Descriptor=boost::property_map::descriptor, Bundle=Node, T=int ] Thanks

In response to Stephan's requests for detail(sorry, I cannot find stephan's reply on 'gmane.org', though i saw it on 'boost.org'. So I have to reply to my own topic instead). Thanks Stephan! I found out later that a member defined in my class GA was causing the compiling error: class GA{ //data members Graph* rg;//deine a pointer to Graph object ... //after commenting out this line, it compiles boost::property_map::type nmt;//define a pointer to one of Node's property ... } I still donot know why, but I think it might be that member variable declaration cannot be resolved, so it cannot be class member variable? Thanks, Shufei

Stephan Diederich writes:

Hi Shufei,

On 4/10/07, Shufei Fan wrote: [snip]

...

I found out later that a member defined in my class GA was causing the compiling error:

This seems to work for me (currently on apple's gcc 4.01):

struct GA { Graph *rowGraph; boost::property_map::type nmt;

GA():rowGraph(0){ rowGraph = new Graph(); nmt = get(&Node::count, *rowGraph); };

~GA(){ if(rowGraph) delete rowGraph; } };

HTH, Stephan

Are you saying initialize the property-pointer in the class GA's constructor? I tried this, I am on windows vc2003.net, but that still doesnot compile. I've switched to using local variable instead(although more local definitions, but easier to get it work anyway) thanks Stephan! Shufei

Stephan Diederich writes:

...

Are you saying initialize the property-pointer in the class GA's constructor?

I just wanted to get a working example ;)

...

I tried this, I am on windows vc2003.net, but that still doesnot compile. I've switched to using local variable instead(although more local definitions, but easier to get it work anyway)

Maybe we can get Doug (the one who made the Bundled Properties) to comment on this...

Cheers, Stephan

Simplified sample as follows, produced the error. #include #include <iostream> // for std::cout #include <fstream> // for std::cout #include <utility> // for std::pair #include <algorithm> // for std::for_each #include // for boost::tie #include // for boost::graph_traits #include #include using namespace boost; struct Node { int count;//pixel number for this region double mode[3];//region mode (RGB) }; struct Edge { double eWeight;//normalized number of common boundary points }; //For accessing mode[3]: //pointer to Node-Mode //new specialization of property_map for bundles with arrays namespace boost{ template struct property_map { private: typedef graph_traits<Graph> traits; typedef typename Graph::vertex_bundled vertex_bundled; typedef typename Graph::edge_bundled edge_bundled; typedef typename mpl::if_c<(detail::is_vertex_bundle::value), typename traits::vertex_descriptor, typename traits::edge_descriptor>::type descriptor; typedef typename mpl::if_c<(detail::is_vertex_bundle::value), vertex_bundled, edge_bundled>::type actual_bundle; public: typedef bundle_property_map type; typedef bundle_property_map const_type; }; }; typedef boost::adjacency_list< boost::listS, boost::listS, boost::bidirectionalS, boost::property, Edge> Graph; class GA { //data members //Number of points int nRowPnt; int nColPnt; //Graph variables Graph *rowGraph; Graph *colGraph; boost::property_map::type L_vertex_id, R_vertex_id; boost::property_map::type nmt; //methods members public: //default constructor GA(): nRowPnt (0), nColPnt (0), rowGraph(NULL), colGraph(NULL) { rowGraph = new Graph(); colGraph = new Graph(); nmt = get(&Node::count, *rowGraph); } ~GA() { delete rowGraph; delete colGraph; } }; int main() { GA ga; return 0; } /////////////////////////////////////////////////////////////////////////////// error: xxxx...error C2512: 'boost::bundle_property_map' : no appropriate default constructor available with [ Graph=Graph, Descriptor=boost::property_map::descriptor, Bundle=Node, T=int ] xxxxxxxxxxx............................ try1 - 1 error(s), 0 warning(s) Thanks, Shufei