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The concept GetCost describes the requirements for the policy function object which gets the collapse cost of an edge.
The cost returned is a boost::optional value (i.e. it can be absent). An absent cost indicates that the edge should not be collapsed. This could be the result of a computational limitation (such as overflow), or can be intentionally returned to prevent the edge from being collapsed.
| GetCost::Profile | |
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The type of the edge profile cache. Must be a model of the EdgeProfile concept.
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| GetCost::FT | |
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A field type representing the collapse cost
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| typename CGAL::halfedge_graph_traits<ECM>::Point | ||
| Point; | The point type for the surface vertex. Must be a model of Point_3. | |
| boost::optional<FT> | result_type; | The type of the result (an optional cost value). |