Package javax.vecmath

Class Quat4f

    • Field Summary

      • Fields inherited from class javax.vecmath.Tuple4f

        w, x, y, z
    • Constructor Summary

      Constructors 
      Constructor Description
      Quat4f()
      Constructs and initializes a Quat4f to (0.0,0.0,0.0,0.0).
      Quat4f​(float[] q)
      Constructs and initializes a Quat4f from the array of length 4.
      Quat4f​(float x, float y, float z, float w)
      Constructs and initializes a Quat4f from the specified xyzw coordinates.
      Quat4f​(Quat4d q1)
      Constructs and initializes a Quat4f from the specified Quat4d.
      Quat4f​(Quat4f q1)
      Constructs and initializes a Quat4f from the specified Quat4f.
      Quat4f​(Tuple4d t1)
      Constructs and initializes a Quat4f from the specified Tuple4d.
      Quat4f​(Tuple4f t1)
      Constructs and initializes a Quat4f from the specified Tuple4f.
    • Constructor Detail

      • Quat4f

        public Quat4f​(float x,
                      float y,
                      float z,
                      float w)
        Constructs and initializes a Quat4f from the specified xyzw coordinates.
        Parameters:
        x - the x coordinate
        y - the y coordinate
        z - the z coordinate
        w - the w scalar component
      • Quat4f

        public Quat4f​(float[] q)
        Constructs and initializes a Quat4f from the array of length 4.
        Parameters:
        q - the array of length 4 containing xyzw in order
      • Quat4f

        public Quat4f​(Quat4f q1)
        Constructs and initializes a Quat4f from the specified Quat4f.
        Parameters:
        q1 - the Quat4f containing the initialization x y z w data
      • Quat4f

        public Quat4f​(Quat4d q1)
        Constructs and initializes a Quat4f from the specified Quat4d.
        Parameters:
        q1 - the Quat4d containing the initialization x y z w data
      • Quat4f

        public Quat4f​(Tuple4f t1)
        Constructs and initializes a Quat4f from the specified Tuple4f.
        Parameters:
        t1 - the Tuple4f containing the initialization x y z w data
      • Quat4f

        public Quat4f​(Tuple4d t1)
        Constructs and initializes a Quat4f from the specified Tuple4d.
        Parameters:
        t1 - the Tuple4d containing the initialization x y z w data
      • Quat4f

        public Quat4f()
        Constructs and initializes a Quat4f to (0.0,0.0,0.0,0.0).
    • Method Detail

      • conjugate

        public final void conjugate​(Quat4f q1)
        Sets the value of this quaternion to the conjugate of quaternion q1.
        Parameters:
        q1 - the source vector
      • conjugate

        public final void conjugate()
        Sets the value of this quaternion to the conjugate of itself.
      • mul

        public final void mul​(Quat4f q1,
                              Quat4f q2)
        Sets the value of this quaternion to the quaternion product of quaternions q1 and q2 (this = q1 * q2). Note that this is safe for aliasing (e.g. this can be q1 or q2).
        Parameters:
        q1 - the first quaternion
        q2 - the second quaternion
      • mul

        public final void mul​(Quat4f q1)
        Sets the value of this quaternion to the quaternion product of itself and q1 (this = this * q1).
        Parameters:
        q1 - the other quaternion
      • mulInverse

        public final void mulInverse​(Quat4f q1,
                                     Quat4f q2)
        Multiplies quaternion q1 by the inverse of quaternion q2 and places the value into this quaternion. The value of both argument quaternions is preservered (this = q1 * q2^-1).
        Parameters:
        q1 - the first quaternion
        q2 - the second quaternion
      • mulInverse

        public final void mulInverse​(Quat4f q1)
        Multiplies this quaternion by the inverse of quaternion q1 and places the value into this quaternion. The value of the argument quaternion is preserved (this = this * q^-1).
        Parameters:
        q1 - the other quaternion
      • inverse

        public final void inverse​(Quat4f q1)
        Sets the value of this quaternion to quaternion inverse of quaternion q1.
        Parameters:
        q1 - the quaternion to be inverted
      • inverse

        public final void inverse()
        Sets the value of this quaternion to the quaternion inverse of itself.
      • normalize

        public final void normalize​(Quat4f q1)
        Sets the value of this quaternion to the normalized value of quaternion q1.
        Parameters:
        q1 - the quaternion to be normalized.
      • normalize

        public final void normalize()
        Normalizes the value of this quaternion in place.
      • set

        public final void set​(Matrix4f m1)
        Sets the value of this quaternion to the rotational component of the passed matrix.
        Parameters:
        m1 - the Matrix4f
      • set

        public final void set​(Matrix4d m1)
        Sets the value of this quaternion to the rotational component of the passed matrix.
        Parameters:
        m1 - the Matrix4d
      • set

        public final void set​(Matrix3f m1)
        Sets the value of this quaternion to the rotational component of the passed matrix.
        Parameters:
        m1 - the Matrix3f
      • set

        public final void set​(Matrix3d m1)
        Sets the value of this quaternion to the rotational component of the passed matrix.
        Parameters:
        m1 - the Matrix3d
      • set

        public final void set​(AxisAngle4f a)
        Sets the value of this quaternion to the equivalent rotation of the AxisAngle argument.
        Parameters:
        a - the AxisAngle to be emulated
      • set

        public final void set​(AxisAngle4d a)
        Sets the value of this quaternion to the equivalent rotation of the AxisAngle argument.
        Parameters:
        a - the AxisAngle to be emulated
      • interpolate

        public final void interpolate​(Quat4f q1,
                                      float alpha)
        Performs a great circle interpolation between this quaternion and the quaternion parameter and places the result into this quaternion.
        Parameters:
        q1 - the other quaternion
        alpha - the alpha interpolation parameter
      • interpolate

        public final void interpolate​(Quat4f q1,
                                      Quat4f q2,
                                      float alpha)
        Performs a great circle interpolation between quaternion q1 and quaternion q2 and places the result into this quaternion.
        Parameters:
        q1 - the first quaternion
        q2 - the second quaternion
        alpha - the alpha interpolation parameter