javax.vecmath

Class Point3d

public class Point3d extends Tuple3d implements Serializable

A 3 element point that is represented by double precision floating point x,y,z coordinates.
Constructor Summary
Point3d(double x, double y, double z)
Constructs and initializes a Point3d from the specified xyz coordinates.
Point3d(double[] p)
Constructs and initializes a Point3d from the specified array.
Point3d(Point3d p1)
Constructs and initializes a Point3d from the specified Point3d.
Point3d(Point3f p1)
Constructs and initializes a Point3d from the specified Point3f.
Point3d(Tuple3d t1)
Constructs and initializes a Point3d from the specified Tuple3d.
Point3d(Tuple3f t1)
Constructs and initializes a Point3d from the specified Tuple3f.
Point3d()
Constructs and initializes a Point3d to (0,0,0).
Method Summary
doubledistance(Point3d p1)
Returns the distance between this point and point p1.
doubledistanceL1(Point3d p1)
Computes the L-1 (Manhattan) distance between this point and point p1.
doubledistanceLinf(Point3d p1)
Computes the L-infinite distance between this point and point p1.
doubledistanceSquared(Point3d p1)
Computes the square of the distance between this point and point p1.
voidproject(Point4d p1)
Multiplies each of the x,y,z components of the Point4f parameter by 1/w and places the projected values into this point.

Constructor Detail

Point3d

public Point3d(double x, double y, double z)
Constructs and initializes a Point3d from the specified xyz coordinates.

Parameters: x the x coordinate y the y coordinate z the z coordinate

Point3d

public Point3d(double[] p)
Constructs and initializes a Point3d from the specified array.

Parameters: p the array of length 3 containing xyz in order

Point3d

public Point3d(Point3d p1)
Constructs and initializes a Point3d from the specified Point3d.

Parameters: p1 the Point3d containing the initialization x y z data

Point3d

public Point3d(Point3f p1)
Constructs and initializes a Point3d from the specified Point3f.

Parameters: p1 the Point3d containing the initialization x y z data

Point3d

public Point3d(Tuple3d t1)
Constructs and initializes a Point3d from the specified Tuple3d.

Parameters: t1 the Tuple3d containing the initialization x y z data

Point3d

public Point3d(Tuple3f t1)
Constructs and initializes a Point3d from the specified Tuple3f.

Parameters: t1 the Tuple3f containing the initialization x y z data

Point3d

public Point3d()
Constructs and initializes a Point3d to (0,0,0).

Method Detail

distance

public final double distance(Point3d p1)
Returns the distance between this point and point p1.

Parameters: p1 the other point

Returns: the distance between these two points as a float

distanceL1

public final double distanceL1(Point3d p1)
Computes the L-1 (Manhattan) distance between this point and point p1. The L-1 distance is equal to abs(x1-x2) + abs(y1-y2).

Parameters: p1 the other point

distanceLinf

public final double distanceLinf(Point3d p1)
Computes the L-infinite distance between this point and point p1. The L-infinite distance is equal to MAX[abs(x1-x2), abs(y1-y2)].

Parameters: p1 the other point

distanceSquared

public final double distanceSquared(Point3d p1)
Computes the square of the distance between this point and point p1.

Parameters: p1 the other point

Returns: the square of distance between these two points as a float

project

public final void project(Point4d p1)
Multiplies each of the x,y,z components of the Point4f parameter by 1/w and places the projected values into this point.

Parameters: p1 the source Point4d, which is not modified