Package javax.vecmath

Class Point4f

    • Constructor Detail

      • 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 array of length 4.
        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​(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​(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​(Tuple3f t1)
        Constructs and initializes a Point4f 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:
        vecmath 1.2
      • Point4f

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

      • 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:
        vecmath 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)
        Computes the distance between this point and point p1.
        Parameters:
        p1 - the other point
        Returns:
        the distance between the 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:
        the 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:
        the 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 Point4f, which is not modified