Package org.opensourcephysics.numerics

Class Vec3D

java.lang.Object
org.opensourcephysics.numerics.Vec3D
public class Vec3D extends Object
A 3-element vector that is represented by double-precision floating point x,y,z coordinates.

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    double
    x
     
    double
    y
     
    double
    z
     

  • Constructor Summary

    Constructors
    Constructor
    Description
    Vec3D()
    Constructs and initializes it to (0,0,0).
    Vec3D(double[] v)
    Constructs and initializes a Vector3d from the array of length 3.
    Vec3D(double x, double y, double z)
    Constructs and initializes a Vector3d from the specified xyz coordinates.
    Vec3D(Vec3D v1)
    Constructs and initializes a Vector3d from the specified Vector3d.

  • Method Summary

    Modifier and Type
    Method
    Description
    final void
    add(Vec3D v1, Vec3D v2)
    Sets this vector to the vector addition of vectors v1 and v2.
    final double
    angle(Vec3D v1)
    Returns the angle in radians between this vector and the vector parameter; the return value is constrained to the range [0,PI].
    void
    cross(Vec3D v1, Vec3D v2)
    Sets this vector to the vector cross product of vectors v1 and v2.
    final double
    dot(Vec3D v1)
    Returns the dot product of this vector and vector v1.
    final double
    magnitude()
    Returns the magnitude of this vector.
    final double
    magnitudeSquared()
    Returns the squared magnitude of this vector.
    void
    multiply(Vec3D v1, double number)
    Sets this vector to the multiplication of vector v1 and a scalar number
    final void
    normalize()
    Normalizes this vector in place.
    final void
    subtract(Vec3D v1, Vec3D v2)
    Sets this vector to the vector subtraction of vectors v1 and v2.

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Field Details

    • x

      public double x

    • y

      public double y

    • z

      public double z

  • Constructor Details

    • Vec3D

      public Vec3D(double x, double y, double z)
      Constructs and initializes a Vector3d from the specified xyz coordinates.
      Parameters:
      x - the x coordinate
      y - the y coordinate
      z - the z coordinate

    • Vec3D

      public Vec3D(double[] v)
      Constructs and initializes a Vector3d from the array of length 3.
      Parameters:
      v - the array of length 3 containing xyz in order

    • Vec3D

      public Vec3D(Vec3D v1)
      Constructs and initializes a Vector3d from the specified Vector3d.
      Parameters:
      v1 - the Vector3d containing the initialization x y z data

    • Vec3D

      public Vec3D()
      Constructs and initializes it to (0,0,0).

  • Method Details

    • subtract

      public final void subtract(Vec3D v1, Vec3D v2)
      Sets this vector to the vector subtraction of vectors v1 and v2.
      Parameters:
      v1 - the first vector
      v2 - the second vector

    • add

      public final void add(Vec3D v1, Vec3D v2)
      Sets this vector to the vector addition of vectors v1 and v2.
      Parameters:
      v1 - the first vector
      v2 - the second vector

    • cross

      public void cross(Vec3D v1, Vec3D v2)
      Sets this vector to the vector cross product of vectors v1 and v2.
      Parameters:
      v1 - the first vector
      v2 - the second vector

    • multiply

      public void multiply(Vec3D v1, double number)
      Sets this vector to the multiplication of vector v1 and a scalar number
      Parameters:
      v1 - the vector
      number - to multiply v1

    • normalize

      public final void normalize()
      Normalizes this vector in place.

    • dot

      public final double dot(Vec3D v1)
      Returns the dot product of this vector and vector v1.
      Parameters:
      v1 - the other vector
      Returns:
      the dot product of this and v1

    • magnitudeSquared

      public final double magnitudeSquared()
      Returns the squared magnitude of this vector.
      Returns:
      the squared magnitude

    • magnitude

      public final double magnitude()
      Returns the magnitude of this vector.
      Returns:
      the magnitude

    • angle

      public final double angle(Vec3D v1)
      Returns the angle in radians between this vector and the vector parameter; the return value is constrained to the range [0,PI].
      Parameters:
      v1 - the other vector
      Returns:
      the angle in radians in the range [0,PI]