Module vecmath
Package javax.vecmath

Class Point4f

java.lang.Object
javax.vecmath.Tuple4f
javax.vecmath.Point4f
All Implemented Interfaces:
Serializable, Cloneable
public class Point4f extends Tuple4f implements Serializable
A 4 element point that is represented by single 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

    • Point4f

      public Point4f(float x, float y, float z, float w)
      Constructs and initializes a Point4f from the specified xyzw coordinates.
      Parameters:
      x - the x coordinate
      y - the y coordinate
      z - the z coordinate
      w - the w coordinate

    • Point4f

      public Point4f(float[] p)
      Constructs and initializes a Point4f from the specified array.
      Parameters:
      p - the array of length 4 containing xyzw in order

    • Point4f

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

    • Point4f

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

    • Point4f

      public Point4f(Tuple4d t1)
      Constructs and initializes a Point4f from the specified Tuple4d.
      Parameters:
      t1 - the Tuple4d containing the initialization x y z w data

    • Point4f

      public Point4f(Tuple4f t1)
      Constructs and initializes a Point4f from the specified Tuple4f.
      Parameters:
      t1 - the Tuple4f containing the initialization x y z w data

    • Point4f

      public Point4f()
      Constructs and initializes a Point4f to (0,0,0,0).

    • Point4f

      public Point4f(Tuple3f t1)
      Constructs and initializes a Point4d from the specified Tuple3f. 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(Tuple3f 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 float distanceSquared(Point4f 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

    • distance

      public final float distance(Point4f 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(Point4f 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 float distanceLinf(Point4f 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(Point4f 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

    • clone

      public Object clone()
      Specified by:
      clone in class Tuple4f