Module vecmath
Package javax.vecmath

Class Point4d

java.lang.Object
javax.vecmath.Tuple4d
javax.vecmath.Point4d
All Implemented Interfaces:
Serializable, Cloneable
public class Point4d extends Tuple4d implements Serializable
A 4 element point that is represented by double precision floating point x,y,z,w coordinates.
Version:
specification 1.1, implementation $Revision: 1.10 $, $Date: 1999/10/05 07:03:50 $
Author:
Kenji hiranabe
See Also:

  • Constructor Details

    • 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

    • Point4d

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

    • 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

    • 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

    • Point4d

      public Point4d(Tuple4d t1)
      Constructs and initializes a Point4d from the specified Tuple4d.
      Parameters:
      t1 - the Tuple4d containing the initialization x y z w data

    • Point4d

      public Point4d(Tuple4f t1)
      Constructs and initializes a Point4d from the specified Tuple4f.
      Parameters:
      t1 - the Tuple4f containing the initialization x y z w data

    • Point4d

      public Point4d()
      Constructs and initializes a Point4d to (0,0,0,0).

    • Point4d

      public Point4d(Tuple3d t1)
      Constructs and initializes a Point4d from the specified Tuple3d. The x,y,z components of this point are set to the corresponding components of tuple t1. The w component of this point is set to 1.
      Parameters:
      t1 - the tuple to be copied
      Since:
      Java3D 1.2

  • Method Details

    • set

      public final void set(Tuple3d t1)
      Sets the x,y,z components of this point to the corresponding components of tuple t1. The w component of this point is set to 1.
      Parameters:
      t1 - the tuple to be copied
      Since:
      Java3D 1.2

    • distanceSquared

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

    • distance

      public final double distance(Point4d p1)
      Returns the distance between this point and point p1.
      Parameters:
      p1 - the other point
      Returns:
      the distance between this point and point p1.

    • distanceL1

      public final double 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).
      Parameters:
      p1 - the other point
      Returns:
      L-1 distance

    • distanceLinf

      public final double 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)].
      Parameters:
      p1 - the other point
      Returns:
      L-infinite distance

    • project

      public final void project(Point4d p1)
      Multiplies each of the x,y,z components of the Point4d 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

    • clone

      public Object clone()
      Specified by:
      clone in class Tuple4d