boost::geometry::concept::Linestring< Geometry > Class Template Reference

Linestring concept. More...

#include <linestring_concept.hpp>

Public Member Functions
	BOOST_CONCEPT_USAGE (Linestring)

Detailed Description

template<typename Geometry>
class boost::geometry::concept::Linestring< Geometry >

Linestring concept.

Formal definition:

The linestring concept is defined as following:

• there must be a specialization of traits::tag defining linestring_tag as type
• it must behave like a Boost.Range
• it must implement a std::back_insert_iterator
  • either by implementing push_back
  • or by specializing std::back_insert_iterator

Note

to fulfill the concepts, no traits class has to be specialized to define the point type.

Example:

A custom linestring, defining the necessary specializations to fulfill to the concept.

Suppose that the following linestring is defined:

It can then be adapted to the concept as following:

Note

• There is also the registration macro BOOST_GEOMETRY_REGISTER_LINESTRING
• For registration of std::vector<P> (and deque, and list) it is enough to include the header-file geometries/adapted/std_as_linestring.hpp. That registers a vector as a linestring (so it cannot be registered as a linear ring then, in the same source code).

Member Function Documentation

template<typename Geometry >

boost::geometry::concept::Linestring< Geometry >::BOOST_CONCEPT_USAGE ( Linestring< Geometry >  )

inline

References boost::geometry::traits::clear< Range >::apply(), boost::geometry::traits::push_back< Range >::apply(), and boost::geometry::traits::resize< Range >::apply().

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The documentation for this class was generated from the following file:

• boost_1_57_0/boost/geometry/geometries/concepts/linestring_concept.hpp