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Calculate the distance between two geometries using the specified strategy.
The free function distance calculates the distance between two geometries using the specified strategy. Reasons to specify a strategy include: use another coordinate system for calculations; construct the strategy beforehand (e.g. with the radius of the Earth); select a strategy when there are more than one available for a calculation.
template<typename Geometry1, typename Geometry2, typename Strategy> auto distance(Geometry1 const & geometry1, Geometry2 const & geometry2, Strategy const & strategy)
| Type | Concept | Name | Description | 
|---|---|---|---|
| Geometry1 const & | Any type fulfilling a Geometry Concept | geometry1 | A model of the specified concept | 
| Geometry2 const & | Any type fulfilling a Geometry Concept | geometry2 | A model of the specified concept | 
| Strategy const & | Any type fulfilling a Distance Strategy Concept | strategy | The strategy which will be used for distance calculations | 
The calculated distance
Either
            #include <boost/geometry.hpp>
          
Or
            #include <boost/geometry/algorithms/distance.hpp>