Module org.jhotdraw8.geom

Package org.jhotdraw8.geom.biarc

Class Line

java.lang.Object

org.jhotdraw8.geom.biarc.Line

public class Line
extends Object

Defines a line in point-slope form: y - y1 = m * (x - x1).

Vertical line: m = NaN

Horizontal line: m = 0

Field Summary

Fields

Modifier and Type	Field	Description
final double	m	Slope.
final Point2D.Double	p	Point.

Constructor Summary

Constructors

Constructor	Description
Line(Point2D.Double p, double m)	Define a line by a point and slope.
Line(Point2D.Double p1, Point2D.Double p2)	Define a line by two points.

Method Summary

Modifier and Type	Method	Description
static Line	createPerpendicularAt(Point2D.Double P, Point2D.Double P1)	Creates a a line which is perpendicular to the line defined by P and P1 and goes through P
Point2D.Double	Intersection(Line l)	Calculate the intersection point of this line and another one.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

m

public final double m

Slope.

p

public final Point2D.Double p

Point.

Constructor Details

Line

public Line(Point2D.Double p1,
 Point2D.Double p2)

Define a line by two points.

Parameters:

p1 - first point

p2 - second point

Line

public Line(Point2D.Double p,
 double m)

Define a line by a point and slope.

Parameters:

p - point

m - slope

Method Details

Intersection

public Point2D.Double Intersection(Line l)

Calculate the intersection point of this line and another one.

Parameters:

l - another line

Returns:

the intersection point

createPerpendicularAt

public static Line createPerpendicularAt(Point2D.Double P,
 Point2D.Double P1)

Creates a a line which is perpendicular to the line defined by P and P1 and goes through P

Parameters:

P -

P1 -

Returns: