jdsl.geomobj.ref
Class RealPoint2D

java.lang.Object
  |
  +--jdsl.geomobj.ref.AbstractGeomObject2D
        |
        +--jdsl.geomobj.ref.RealPoint2D

All Implemented Interfaces:

GeomObject, GeomObject2D, Point2D

public class RealPoint2D

extends AbstractGeomObject2D

implements Point2D

This is the class for a two-dimensional geometric point with real coordinates.

Version:

$Id: RealPoint2D.java,v 1.2 2000/06/08 19:04:31 lv Exp $

Author:

Luca Vismara (lv)

Inner classes inherited from class jdsl.geomobj.api.Point2D

Point2D.InfinitePoint2D

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

GeomObject2D.NoneGeomObject2D

Field Summary

protected double	x_
protected double	y_

Fields inherited from class jdsl.geomobj.ref.AbstractGeomObject2D

gt, jn

Fields inherited from interface jdsl.geomobj.api.Point2D

INFINITE

Fields inherited from interface jdsl.geomobj.api.GeomObject2D

NONE

Constructor Summary

RealPoint2D(double x, double y)

RealPoint2D(float x, float y)

Method Summary

int	arithmeticType() The arithmetic type of a geometric object is encoded as an integer number.
boolean	equals(java.lang.Object obj)
void	setTolerance(double t) Sets the tolerance with which two real points are considered equal
java.lang.String	toString()
double	x() This approximate method is provided for visualization purposes only; computations should be performed through methods of GeomTester2D.
double	y() This approximate method is provided for visualization purposes only; computations should be performed through methods of GeomTester2D.

Methods inherited from class jdsl.geomobj.ref.AbstractGeomObject2D

dim

Methods inherited from class java.lang.Object

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

Methods inherited from interface jdsl.geomobj.api.GeomObject

dim

Field Detail

x_

protected double x_

y_

protected double y_

Constructor Detail

RealPoint2D

public RealPoint2D(float x,
                   float y)

Parameters:

x - x-coordinate of the point

y - y-coordinate of the point

RealPoint2D

public RealPoint2D(double x,
                   double y)

Parameters:

x - x-coordinate of the point

y - y-coordinate of the point

Method Detail

setTolerance

public void setTolerance(double t)

Sets the tolerance with which two real points are considered equal

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class java.lang.Object

Returns:

whether obj is a RealPoint2D equal to this

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

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

x

public double x()

Description copied from interface: Point2D

This approximate method is provided for visualization purposes only; computations should be performed through methods of GeomTester2D.

Specified by:

x in interface Point2D

Following copied from interface: jdsl.geomobj.api.Point2D

Returns:

a double approximation of the x coordinate of this

y

public double y()

Description copied from interface: Point2D

This approximate method is provided for visualization purposes only; computations should be performed through methods of GeomTester2D.

Specified by:

y in interface Point2D

Following copied from interface: jdsl.geomobj.api.Point2D

Returns:

a double approximation of the y coordinate of this