Module imagingbook.common

Package imagingbook.common.geometry.basic

Class LineSegment2d

java.lang.Object

imagingbook.common.geometry.basic.LineSegment2d

All Implemented Interfaces:

ShapeProducer

public class LineSegment2d
extends Object
implements ShapeProducer

Described a 2D line segment defined by two end points. Instances are immutable.

Constructor Summary

Constructors

Constructor	Description
LineSegment2d(double x1, double y1, double x2, double y2)	Constructor for double coordinates.
LineSegment2d(int x1, int y1, int x2, int y2)	Constructor for integer coordinates.
LineSegment2d(Pnt2d p1, Pnt2d p2)	Constructor for arbitrary 2D points.

Method Summary

Modifier and Type	Method	Description
Pnt2d	getP1()	Returns the first end point.
Pnt2d	getP2()	Returns the second end point.
Shape	getShape(double scale)	Returns a scaled Shape for this object (default scale is 1).

Methods inherited from class java.lang.Object

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

Methods inherited from interface imagingbook.common.geometry.shape.ShapeProducer

getShape, getShapes, getShapes

Constructor Details

LineSegment2d

public LineSegment2d(Pnt2d p1,
 Pnt2d p2)

Constructor for arbitrary 2D points.

Parameters:

p1 - first end point

p2 - second end point

LineSegment2d

public LineSegment2d(int x1,
 int y1,
 int x2,
 int y2)

Constructor for integer coordinates.

Parameters:

x1 - x-coordinate of first point

y1 - y-coordinate of first point

x2 - x-coordinate of second point

y2 - y-coordinate of second point

LineSegment2d

public LineSegment2d(double x1,
 double y1,
 double x2,
 double y2)

Constructor for double coordinates.

Parameters:

x1 - x-coordinate of first point

y1 - y-coordinate of first point

x2 - x-coordinate of second point

y2 - y-coordinate of second point

Method Details

getP1

public Pnt2d getP1()

Returns the first end point.

Returns:

the first end point

getP2

public Pnt2d getP2()

Returns the second end point.

Returns:

the second end point

getShape

public Shape getShape(double scale)

Description copied from interface: ShapeProducer

Returns a scaled Shape for this object (default scale is 1). Must be defined by implementing classes. The interpretation of the scale factor is left to the implementing class. For example, for Pnt2d it specifies the size of the marker (see Pnt2d.getShape(double).

Specified by:

getShape in interface ShapeProducer

Parameters:

scale - the scale of the shape

Returns:

a Shape instance