A Line2 is a line on XY-plane, and it is defined in slope-intercept form y = slope*x + y-intercept; for making operations easier. More...

Public Member Functions
	Line2 (const Coord &, const Coord &)

	Line2 (const Coord &, double slope)

	Line2 (double slope=0, double intcpt=0)

Coord	closestPoint (const Coord &point) const

Coord	direction () const

double	distanceTo (const Line2 &) const

bool	getParallelLine (Line2 &line, double dist) const

bool	getPerpendicularLine (Line2 &line, const Coord &pt) const

Coord	intersection (const Line2 &, bool checkinlimit=true) const

bool	isOnLine (const Coord &pt) const

bool	operator== (const Line2 &) const

Public Attributes
bool	isvertical_

double	slope_

Coord	start_

Coord	stop_

double	xintcpt_

double	yintcpt_

Detailed Description

A Line2 is a line on XY-plane, and it is defined in slope-intercept form y = slope*x + y-intercept; for making operations easier.

<>

Constructor & Destructor Documentation

◆ Line2() [1/3]

Line2::Line2	(	double	slope = `0`,
		double	intcpt = `0`
	)

◆ Line2() [2/3]

Line2::Line2	(	const Coord &	,
		double	slope
	)

◆ Line2() [3/3]

Line2::Line2	(	const Coord &	,
		const Coord &
	)

Member Function Documentation

◆ closestPoint()

Coord Line2::closestPoint ( const Coord & point ) const

Returns: the point on the line that is closest to the given point

◆ direction()

Coord Line2::direction ( ) const

Normalized

◆ distanceTo()

double Line2::distanceTo ( const Line2 & ) const

Gives distance to another parallel line

◆ getParallelLine()

bool Line2::getParallelLine	(	Line2 &	line,
		double	dist
	)		const

Gives a parallel line at a distance dist

◆ getPerpendicularLine()

bool Line2::getPerpendicularLine	(	Line2 &	line,
		const Coord &	pt
	)		const

Gives a perpendicular line through point pt

◆ intersection()

Coord Line2::intersection	(	const Line2 &	,
		bool	checkinlimit = `true`
	)		const

◆ isOnLine()

bool Line2::isOnLine ( const Coord & pt ) const

◆ operator==()

bool Line2::operator== ( const Line2 & ) const

Member Data Documentation

◆ isvertical_

bool Line2::isvertical_

Parallel to y-axis

◆ slope_

double Line2::slope_

◆ start_

Coord Line2::start_

For line-segments only

◆ stop_

Coord Line2::stop_