+
+ // point-point strategy getters
+ struct distance_pp_strategy
+ {
+ typedef geographic<FormulaPolicy, Spheroid, CalculationType> type;
+ };
+
+ // point-segment strategy getters
+ struct distance_ps_strategy
+ {
+ typedef geographic_cross_track
+ <
+ FormulaPolicy,
+ Spheroid,
+ CalculationType
+ > type;
+ };