buffer: calculate buffer of a geometry

Functions
template<typename Input , typename Output , typename T >
void	boost::geometry::buffer (Input const &geometry_in, Output &geometry_out, T const &distance, T const &chord_length=-1)
	Calculate buffer (= new geometry) around specified distance of geometry.
template<typename Output , typename Input , typename T >
Output	boost::geometry::make_buffer (Input const &geometry, T const &distance, T const &chord_length=-1)
	Calculate and return buffer (= new geometry) around specified distance of geometry.

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Detailed Description

Source description:

• OGC: Returns a geometric object that represents all Points whose distance from this geometric object is less than or equal to distance. Calculations are in the spatial reference system of this geometric object. Because of the limitations of linear interpolation, there will often be some relatively small error in this distance, but it should be near the resolution of the coordinates used

See also:

http://en.wikipedia.org/wiki/Buffer_(GIS)

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Function Documentation

template<typename Input , typename Output , typename T >

void boost::geometry::buffer	(	Input const &	geometry_in,
		Output &	geometry_out,
		T const &	distance,
		T const &	chord_length = -1
	)

Calculate buffer (= new geometry) around specified distance of geometry.

Parameters:

	geometry_in	input geometry
	distance	the distance used in buffer
	chord_length	length of the chord's in the generated arcs around points or bends
	geometry_out	buffered geometry

Note:

Currently only implemented for box, the trivial case, but still useful

Use case:

BOX + distance -> BOX: it is allowed that "geometry_out" the same object as "geometry_in"

Definition at line 107 of file buffer.hpp.

template<typename Output , typename Input , typename T >

Output boost::geometry::make_buffer	(	Input const &	geometry,
		T const &	distance,
		T const &	chord_length = -1
	)

Calculate and return buffer (= new geometry) around specified distance of geometry.

Parameters:

	geometry	input geometry
	distance	the distance used in buffer
	chord_length	length of the chord's in the generated arcs around points or bends

Returns:

the buffered geometry

Note:

See also: buffer

Definition at line 133 of file buffer.hpp.