class Gambit::ColliderBit::LineSegment #

A simple container for a line segment on an xy plane. More…

#include <PointsAndLines.hpp>

Public Functions #

Detailed Description #

class Gambit::ColliderBit::LineSegment;

A simple container for a line segment on an xy plane.

This class depends on the P2 class above. It has a built in algorithm to detect intersection with another LineSegment.

Public Functions Documentation #

function init #

inline void init(
    double x1,
    double y1,
    double x2,
    double y2,
    double extendFrac =-1.
)

Coordinate initializer / recycler.

function init #

inline void init(
    const P2 & p1,
    const P2 & p2,
    double extendFrac =-1.
)

Point initializer / recycler.

function LineSegment #

inline LineSegment()

Default constructor.

function LineSegment #

inline LineSegment(
    double x1,
    double y1,
    double x2,
    double y2,
    double extendFrac =-1.
)

Coordinate constructor.

function LineSegment #

inline LineSegment(
    const P2 & p1,
    const P2 & p2,
    double extendFrac =0.
)

Point constructor.

function LineSegment #

inline LineSegment(
    const LineSegment & other
)

Copy constructor.

function operator= #

inline LineSegment & operator=(
    const LineSegment & other
)

Copy assignment operator.

function getp1 #

inline const P2 getp1() const

function getp2 #

inline const P2 getp2() const

function slope #

inline double slope() const

Get the slope of the line segment.

function m #

inline double m() const

Alias for slope.

function intercept #

inline double intercept() const

Get the y-intercept of the full line which contains this segment.

function b #

inline double b() const

Alias for intercept.

function abs #

inline double abs() const

Get the length of the vector from the origin to this point.

function r #

inline double r() const

Alias for abs.

function intersectsAt #

inline P2 intersectsAt(
    const LineSegment & other
) const

Determine if this intersects with other and where.

Updated on 2023-06-26 at 21:36:52 +0000