Package WildMagic.LibFoundation.Mathematics

Class Vector4d

  • All Implemented Interfaces:
    java.io.Serializable, java.lang.Comparable<Vector4d>
    public class Vector4d
extends java.lang.Object
implements java.lang.Comparable<Vector4d>, java.io.Serializable
    3D Vector object (X,Y,Z,W).
    See Also:
    Serialized Form

    • Constructor Summary

      Constructors 
      Constructor Description
      Vector4d()
      construction, initialized to 0,0,0,0
      Vector4d​(double[] afTuple)
      construction
      Vector4d​(double fX, double fY, double fZ, double fW)
      construction
      Vector4d​(Vector4d rkV)
      copy construction

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      int compare​(Vector4d arg0, Vector4d arg1)
      Sorting a list of Vector3d in order, where each element is a column when two Vector3d have equal X then the sort is by Y.
      int compareTo​(Vector4d arg0)  
      Vector4d copy​(Vector4d rkV)
      Set the values of this vector.
      double dot​(Vector4d rkV)
      Compute dot-product of this vector with input vector:
      boolean equals​(java.lang.Object kObject)  
      int hashCode()  
      boolean isEqual​(Vector4d rkV)
      Return true if the input Vector4d is equal to this.
      double length()
      Compute length this vector:
      Vector4d neg​(Vector4d kV)
      Negate this vector: this = - this.
      double normalize()
      Normalize this vector, return original length:
      Vector4d scale​(double fScalar)
      Scale this vector by input: this = this * fScalar.
      Vector4d set​(double fX, double fY, double fZ, double fW)
      Set the values of this vector.
      double squaredLength()
      Compute squared-length this vector:
      double sum()
      Sum the elements of the vector.
      java.lang.String toString()
      Returns a string representation of the vector values.

      • Methods inherited from class java.lang.Object

        clone, finalize, getClass, notify, notifyAll, wait, wait, wait

    • Field Detail

      • ZERO

        public static final Vector4d ZERO
        Zero vector: (0,0,0,0)

      • UNIT_X

        public static final Vector4d UNIT_X
        Unit-X vector: (1,0,0,0)

      • UNIT_Y

        public static final Vector4d UNIT_Y
        Unit-Y vector: (0,1,0,0)

      • UNIT_Z

        public static final Vector4d UNIT_Z
        Unit-Z vector: (0,0,1,0)

      • UNIT_W

        public static final Vector4d UNIT_W
        Unit-W vector: (0,0,0,1)

      • ONE

        public static final Vector4d ONE
        One vector: (1,1,1,1)

      • X

        public double X
        Vector data:

      • Y

        public double Y

      • Z

        public double Z

      • W

        public double W

    • Constructor Detail

      • Vector4d

        public Vector4d()
        construction, initialized to 0,0,0,0

      • Vector4d

        public Vector4d​(double fX,
                double fY,
                double fZ,
                double fW)
        construction
        Parameters:
        fX - x-value
        fY - y-value
        fZ - z-value
        fW - w-value

      • Vector4d

        public Vector4d​(double[] afTuple)
        construction
        Parameters:
        afTuple - x,y,z,w values

      • Vector4d

        public Vector4d​(Vector4d rkV)
        copy construction
        Parameters:
        rkV - vector to copy.

    • Method Detail

      • copy

        public Vector4d copy​(Vector4d rkV)
        Set the values of this vector.
        Parameters:
        rkV - vector to copy.

      • dot

        public double dot​(Vector4d rkV)
        Compute dot-product of this vector with input vector:
        Returns:
        dot-product of this vector with input vector:

      • equals

        public boolean equals​(java.lang.Object kObject)
        Overrides:
        equals in class java.lang.Object

      • hashCode

        public int hashCode()
        Overrides:
        hashCode in class java.lang.Object

      • isEqual

        public boolean isEqual​(Vector4d rkV)
        Return true if the input Vector4d is equal to this.
        Parameters:
        rkV - input vector to compare to this
        Returns:
        true if the input Vector4d is equal to this, false otherwise.

      • length

        public double length()
        Compute length this vector:
        Returns:
        length this vector

      • normalize

        public double normalize()
        Normalize this vector, return original length:
        Returns:
        original length:

      • scale

        public Vector4d scale​(double fScalar)
        Scale this vector by input: this = this * fScalar.
        Parameters:
        fScalar - scale value

      • set

        public Vector4d set​(double fX,
                    double fY,
                    double fZ,
                    double fW)
        Set the values of this vector.
        Parameters:
        fX - x-value
        fY - y-value
        fZ - z-value
        fW - w-value

      • squaredLength

        public double squaredLength()
        Compute squared-length this vector:
        Returns:
        squared-length this vector

      • sum

        public double sum()
        Sum the elements of the vector.
        Returns:
        vector sum

      • toString

        public java.lang.String toString()
        Returns a string representation of the vector values.
        Overrides:
        toString in class java.lang.Object
        Returns:
        string representation of the vector values.

      • compare

        public int compare​(Vector4d arg0,
                   Vector4d arg1)
        Sorting a list of Vector3d in order, where each element is a column when two Vector3d have equal X then the sort is by Y.
        Parameters:
        arg0 -
        arg1 -
        Returns:

      • compareTo

        public int compareTo​(Vector4d arg0)
        Specified by:
        compareTo in interface java.lang.Comparable<Vector4d>