jdsl.geomobj.ref
Class AbstractRatLinearCurve2D

java.lang.Object
  |
  +--jdsl.geomobj.ref.AbstractGeomObject2D
        |
        +--jdsl.geomobj.ref.AbstractLinearCurve2D
              |
              +--jdsl.geomobj.ref.AbstractRatLinearCurve2D

All Implemented Interfaces:

Curve2D, GeomObject, GeomObject2D, LinearCurve2D, OpenCurve2D

Direct Known Subclasses:

RatLine2D, RatRay2D, RatSegment2D

public abstract class AbstractRatLinearCurve2D

extends AbstractLinearCurve2D

implements LinearCurve2D

An abstract class extended by RatLine2D, RatRay2D, and RatSegment2D.

Version:

$Id: AbstractRatLinearCurve2D.java,v 1.6 2001/05/02 13:32:59 lv Exp $

Author:

Luca Vismara (lv)

Inner classes inherited from class jdsl.geomobj.api.GeomObject2D

GeomObject2D.NoneGeomObject2D

Field Summary

protected RatDirection2D	dir_
protected RatPoint2D	p1_
protected RatPoint2D	p2_

Fields inherited from class jdsl.geomobj.ref.AbstractLinearCurve2D

bottom_, INFINITE, left_, NEGATIVE, POSITIVE, right_, slope_, top_, ZERO

Fields inherited from class jdsl.geomobj.ref.AbstractGeomObject2D

gt, jn

Fields inherited from interface jdsl.geomobj.api.GeomObject2D

NONE

Method Summary

int	arithmeticType() The arithmetic type of a geometric object is encoded as an integer number.
Direction2D	direction()
Point2D[]	points()

Methods inherited from class jdsl.geomobj.ref.AbstractLinearCurve2D

isDecreasing, isHorizontal, isIncreasing, isVertical, toString

Methods inherited from class jdsl.geomobj.ref.AbstractGeomObject2D

dim

Methods inherited from class java.lang.Object

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

Methods inherited from interface jdsl.geomobj.api.LinearCurve2D

isDecreasing, isHorizontal, isIncreasing, isVertical

Methods inherited from interface jdsl.geomobj.api.GeomObject

dim

Field Detail

p1_

protected RatPoint2D p1_

p2_

protected RatPoint2D p2_

dir_

protected RatDirection2D dir_

Method Detail

arithmeticType

public int arithmeticType()

Description copied from interface: GeomObject

The arithmetic type of a geometric object is encoded as an integer number. Current legal values are: 0 = an integer geometric object 1 = a rational geometric object

Specified by:

arithmeticType in interface GeomObject

Following copied from interface: jdsl.geomobj.api.GeomObject

Returns:

the arithmetic type of this

points

public Point2D[] points()

Specified by:

points in interface OpenCurve2D

Following copied from interface: jdsl.geomobj.api.OpenCurve2D

Returns:

an array of points defining this

direction

public Direction2D direction()

Specified by:

direction in interface LinearCurve2D

Following copied from interface: jdsl.geomobj.api.LinearCurve2D

Returns:

the direction associated with this