javax.vecmath

Class Point3f

public class Point3f extends Tuple3f implements Serializable

A 3 element point that is represented by single precision floating point x,y,z coordinates.

Constructor Summary
	Point3f(float x, float y, float z) Constructs and initializes a Point3f from the specified xy coordinates.
	Point3f(float[] p) Constructs and initializes a Point3f from the specified array.
	Point3f(Point3f p1) Constructs and initializes a Point3f from the specified Point3f.
	Point3f(Point3d p1) Constructs and initializes a Point3f from the specified Point3d.
	Point3f(Tuple3f t1) Constructs and initializes a Point3f from the specified Tuple3f.
	Point3f(Tuple3d t1) Constructs and initializes a Point3f from the specified Tuple3d.
	Point3f() Constructs and initializes a Point3f to (0,0,0).

Method Summary
float	distance(Point3f p1) Returns the distance between this point and point p1.
float	distanceL1(Point3f p1) Computes the L-1 (Manhattan) distance between this point and point p1.
float	distanceLinf(Point3f p1) Computes the L-infinite distance between this point and point p1.
float	distanceSquared(Point3f p1) Computes the square of the distance between this point and point p1.
void	project(Point4f 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

Point3f

public Point3f(float x, float y, float z)

Constructs and initializes a Point3f from the specified xy coordinates.

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

Point3f

public Point3f(float[] p)

Constructs and initializes a Point3f from the specified array.

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

Point3f

public Point3f(Point3f p1)

Constructs and initializes a Point3f from the specified Point3f.

Parameters: p1 the Point3f containing the initialization x y z data

Point3f

public Point3f(Point3d p1)

Constructs and initializes a Point3f from the specified Point3d.

Parameters: p1 the Point3f containing the initialization x y z data

Point3f

public Point3f(Tuple3f t1)

Constructs and initializes a Point3f from the specified Tuple3f.

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

Point3f

public Point3f(Tuple3d t1)

Constructs and initializes a Point3f from the specified Tuple3d.

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

Point3f

public Point3f()

Constructs and initializes a Point3f to (0,0,0).

Method Detail

distance

public final float distance(Point3f p1)

Returns the distance between this point and point p1.

Parameters: p1 the other point

Returns: the distance between these two points

distanceL1

public final float distanceL1(Point3f 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) + abs(z1-z2) .

Parameters: p1 the other point

distanceLinf

public final float distanceLinf(Point3f 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), abs(z1-z2)].

Parameters: p1 the other point

distanceSquared

public final float distanceSquared(Point3f 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(Point4f 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