I changed it to:
property_map::vertex_descriptor,
Topology::point_type> positionMap;
minstd_rand gen;
Topology rect_top(gen, -25, -25, 25, 25);
random_graph_layout(graph, positionMap, rect_top);
so that it would conform w/ the description here
http://www.boost.org/doc/libs/1_51_0/libs/graph/doc/random_layout.html
that says:
IN/OUT: PositionMap position
The property map that stores the position of each vertex. The type
PositionMap must be a model of Lvalue Property Map such that the vertex
descriptor type of Graph is convertible to its key type. Its value type must
be Topology::point_type, representing the coordinates of the vertex.
Now I get the error message:
1>c:\program files (x86)\boost\boost_1_51\boost\graph\properties.hpp(222) :
error C2039: 'type' : is not a member of 'boost::vertex_property_type<G>'
1> with
1> [
1> G=unsigned int
1> ]
1> c:\program files
(x86)\boost\boost_1_51\boost\graph\properties.hpp(233) : see reference to
class template instantiation
'boost::detail::vertex_property_map' being compiled
1> with
1> [
1> Graph=unsigned int,
1> PropertyTag=boost::rectangle_topology<>::point_type
1> ]
I think what I really need is a comprehensible example. All that I've found
in the way of an example is here
http://www.boost.org/doc/libs/1_42_0/libs/graph/test/layout_test.cpp .
But it contains so much Boost-specific jargony things that it's not really
good for a beginner to look at and get the sense of how things work.
Do you have any such examples up your sleeve?
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