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strategy::distance::cross_track

Strategy functor for distance point to segment calculation.

Description

Class which calculates the distance of a point to a segment, for points on a sphere or globe

Synopsis

template<typename CalculationType, typename Strategy>
class strategy::distance::cross_track
{
  // ...
};

Template parameter(s)

Parameter

Default

Description

typename CalculationType

void

numeric type for calculation (e.g. high precision); if void then it is extracted automatically from the coordinate type and (if necessary) promoted to floating point

typename Strategy

haversine<double, CalculationType>

underlying point-point distance strategy, defaults to haversine

Constructor(s)

Function

Description

Parameters

cross_track()

cross_track(typename Strategy::radius_type const & r)

typename Strategy::radius_type const &: r:

cross_track(Strategy const & s)

Strategy const &: s:

Member Function(s)

Function

Description

Parameters

Returns

template<typename Point, typename PointOfSegment>
return_type< Point, PointOfSegment >::type apply(Point const & p, PointOfSegment const & sp1, PointOfSegment const & sp2)

Point const &: p:

PointOfSegment const &: sp1:

PointOfSegment const &: sp2:

Strategy::radius_type radius()

Header

#include <boost/geometry/strategies/spherical/distance_cross_track.hpp>

See also

distance (with strategy)


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