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Class java.vecmath.Point4d 

java.lang.Object
   |
   +----java.vecmath.Tuple4d
           |
           +----java.vecmath.Point4d
public class Point4d
extends Tuple4d
A 4 element vector represented by double precision floating point x,y,z,w coordinates.

Constructor Index

o Point4d()
Constructs and initializes a Point4d to (0,0,0,0).
o Point4d(double, double, double, double)
Constructs and initializes a Point4d from the specified xyzw coordinates.
o Point4d(double[])
Constructs and initializes a Point4d from the coordinates contained in the array.
o Point4d(Point4d)
Constructs and initializes a Point4d from the specified Point4d.
o Point4d(Point4f)
Constructs and initializes a Point4d from the specified Point4f.

Method Index

o distance(Point4d)
Returns the distance between this point and point p1.
o distanceL1(Point4d)
Computes the L-1 (Manhattan) distance between this point and point p1.
o distanceLinf(Point4d)
Computes the L-infinite distance between this point and point p1.
o distanceSquared(Point4d)
Returns the square of the distance between this point and point p1.
o project(Point4d)
Multiplies each of the x,y,z components of the Point4f parameter by 1/w, places the projected values into this point, and places a 1 as the w parameter of this point.

Constructors

o Point4d 
 public Point4d(double x,
                double y,
                double z,
                double w)
Constructs and initializes a Point4d from the specified xyzw coordinates.

Parameters:
x - the x coordinate
y - the y coordinate
z - the z coordinate
w - the w coordinate
o Point4d 
 public Point4d(double p[])
Constructs and initializes a Point4d from the coordinates contained in the array.

Parameters:
p - the array of length 4 containing xyzw in order
o Point4d 
 public Point4d(Point4d p1)
Constructs and initializes a Point4d from the specified Point4d.

Parameters:
p1 - the Point4d containing the initialization x y z w data
o Point4d 
 public Point4d(Point4f p1)
Constructs and initializes a Point4d from the specified Point4f.

Parameters:
p1 - the Point4f containing the initialization x y z w data
o Point4d 
 public Point4d()
Constructs and initializes a Point4d to (0,0,0,0).

Methods

o distanceSquared 
 public final double distanceSquared(Point4d p1)
Returns the square of the distance between this point and point p1.

Parameters:
p1 - the first point
Returns:
the square of distance between this point and point p1
o distance 
 public final double distance(Point4d p1)
Returns the distance between this point and point p1.

Parameters:
p1 - the first point
Returns:
the distance between these this point and point p1.
o distanceL1 
 public final float distanceL1(Point4d 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) + abs(w1-w2).

Returns:
the L-1 distance
o distanceLinf 
 public final float distanceLinf(Point4d 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), abs(w1-w2)].

Returns:
the L-infinite distance
o project 
 public final void project(Point4d p1)
Multiplies each of the x,y,z components of the Point4f parameter by 1/w, places the projected values into this point, and places a 1 as the w parameter of this point.

Parameters:
p1 - The source Point4d, which is not modified 
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