org.jzy3d.plot3d.builder.delaunay.jdt
Class Point_dt

java.lang.Object
  org.jzy3d.plot3d.builder.delaunay.jdt.Point_dt

public class Point_dt
extends java.lang.Object

This class represents a 3D point, with some simple geometric methods (pointLineTest).

Field Summary

static int	BEHINDB ������a---------b���+���
static int	ERROR
static int	INFRONTOFA ��+��a---------b������
static int	LEFT + �����a---------b������
static int	ONSEGMENT �����a----+----b������
static int	RIGHT �����a---------b������ +

Constructor Summary

Point_dt()
Default Constructor.

Point_dt(double x, double y)
constructs a 3D point with a z value of 0.

Point_dt(double x, double y, double z)
constructs a 3D point

Point_dt(Point_dt p)
simple copy constructor

Method Summary

double	distance(Point_dt p)
double	distance3D(Point_dt p)
boolean	equals(Point_dt p) return true iff this point [x,y] coordinates are the same as p [x,y] coordinates.
Coord3d	getAsCoord3d() Returns a jzy3d Coord3d instance
static java.util.Comparator<Point_dt>	getComparator()
static java.util.Comparator<Point_dt>	getComparator(int flag)
int	pointLineTest(Point_dt a, Point_dt b) tests the relation between this point (as a 2D [x,y] point) and a 2D segment a,b (the Z values are ignored), returns one of the following: LEFT, RIGHT, INFRONTOFA, BEHINDB, ONSEGMENT
java.lang.String	toFile() return a String: x y z (used by the save to file - write_tsin method).
java.lang.String	toString() return a String in the [x,y,z] format
double	x() returns the x-coordinate of this point.
double	y() returns the y-coordinate of this point.
double	z() returns the z-coordinate of this point.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

ONSEGMENT

public static final int ONSEGMENT

�����a----+----b������

See Also:

Constant Field Values

LEFT

public static final int LEFT

+
�����a---------b������

See Also:

Constant Field Values

RIGHT

public static final int RIGHT

�����a---------b������
+

See Also:

Constant Field Values

INFRONTOFA

public static final int INFRONTOFA

��+��a---------b������

See Also:

Constant Field Values

BEHINDB

public static final int BEHINDB

������a---------b���+���

See Also:

Constant Field Values

ERROR

public static final int ERROR

See Also:

Constant Field Values

Constructor Detail

Point_dt

public Point_dt()

Default Constructor.
constructs a 3D point at (0,0,0).

Point_dt

public Point_dt(double x,
                double y,
                double z)

constructs a 3D point

Point_dt

public Point_dt(double x,
                double y)

constructs a 3D point with a z value of 0.

Point_dt

public Point_dt(Point_dt p)

simple copy constructor

Method Detail

x

public double x()

returns the x-coordinate of this point.

y

public double y()

returns the y-coordinate of this point.

z

public double z()

returns the z-coordinate of this point.

getAsCoord3d

public Coord3d getAsCoord3d()

Returns a jzy3d Coord3d instance

equals

public boolean equals(Point_dt p)

return true iff this point [x,y] coordinates are the same as p [x,y] coordinates. (the z value is ignored).

toString

public java.lang.String toString()

return a String in the [x,y,z] format

Overrides:

toString in class java.lang.Object

distance

public double distance(Point_dt p)

Returns:

the L2 distanse NOTE: 2D only!!!

distance3D

public double distance3D(Point_dt p)

Returns:

the L2 distanse NOTE: 2D only!!!

toFile

public java.lang.String toFile()

return a String: x y z (used by the save to file - write_tsin method).

pointLineTest

public int pointLineTest(Point_dt a,
                         Point_dt b)

tests the relation between this point (as a 2D [x,y] point) and a 2D segment a,b (the Z values are ignored), returns one of the following: LEFT, RIGHT, INFRONTOFA, BEHINDB, ONSEGMENT

Parameters:

a - the first point of the segment.

b - the second point of the segment.

Returns:

the value (flag) of the relation between this point and the a,b line-segment.

getComparator

public static java.util.Comparator<Point_dt> getComparator(int flag)

getComparator

public static java.util.Comparator<Point_dt> getComparator()