All Known Subinterfaces:

MVector2d
```
public interface Vector2d
```
Read-only interface for handling vectors in the XY-plane.

Since:

9.10.2

Field Summary

Fields
Modifier and Type	Field	Description
`static Vector2d`	`NEG_UNIT_X`	The vector (-1, 0).
`static Vector2d`	`NEG_UNIT_Y`	The vector (0, -1).
`static Vector2d`	`UNIT_X`	The vector (1, 0).
`static Vector2d`	`UNIT_Y`	The vector (0, 1).
`static Vector2d`	`ZERO`	The vector (0, 0).

Method Summary

All Methods Static Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`MVector2d`	`add(Vector2d vector)`	Returns the sum of this vector and the given vector.
`double`	`angle(Vector2d vector)`	Returns the minimum angle between this vector and the given vector.
`static Vector2d`	`create(double x, double y)`	Returns a 2-dimensional vector with the given component values.
`static Vector2d`	`create(Vector2d vec)`	Returns a 2-dimensional vector with the X and Y values set to those of the given vector.
`double`	`distance(Vector2d other)`	Returns the distance between this vector and the other vector in the XY-plane.
`double`	`distanceSquared(Vector2d other)`	Returns the square of the distance between this vector and the other vector in the XY-plane.
`double`	`dotProduct(Vector2d vector)`	Returns the dot product between this vector and the given vector.
`boolean`	`equalsWithTolerance(Vector2d other, double tolerance)`	Returns true if this vector is within distance of tolerance to other.
`double`	`getClockwiseAngle()`	This method retrieves the clockwise angle from the positive x-axis to the vector in radians.
`double`	`getLength()`	Returns the length of this vector.
`double`	`getLengthSquared()`	Returns the squared length of this vector.
`double`	`getX()`	Returns the X component of this vector.
`double`	`getY()`	Returns the Y component of this vector.
`MVector2d`	`interpolate(Vector2d vector, double alpha)`	Returns a vector that is the interpolation between this vector and the given vector so that the weight of the given vector is alpha (result is (1 - alpha) * this + alpha * vector).
`MVector2d`	`negate()`	Returns a negated copy of this vector.
`MVector2d`	`normalize()`	Returns a normalized copy of this vector.
`MVector2d`	`scale(double scalar)`	Returns a copy of this vector scaled by the given scalar.
`MVector2d`	`subtract(Vector2d vector)`	Returns the difference of this vector and the given vector.
`static List<Vector2d>`	`to2dVectors(List<? extends Vector3d> vectors)`	Returns the vectors in the given list projected to the XY-plane.
`MVector3d`	`to3dVector()`	Returns a new 3-dimensional vector with the X and Y components of this vector and the Z-component set to 0.

- Field Detail
  - ZERO
```
static final Vector2d ZERO
```
    The vector (0, 0).
    
    Since:
    
    9.10.2
  - UNIT_X
```
static final Vector2d UNIT_X
```
    The vector (1, 0).
    
    Since:
    
    9.10.2
  - NEG_UNIT_X
```
static final Vector2d NEG_UNIT_X
```
    The vector (-1, 0).
    
    Since:
    
    9.10.2
  - UNIT_Y
```
static final Vector2d UNIT_Y
```
    The vector (0, 1).
    
    Since:
    
    9.10.2
  - NEG_UNIT_Y
```
static final Vector2d NEG_UNIT_Y
```
    The vector (0, -1).
    
    Since:
    
    9.10.2
- Method Detail
  - create
```
static Vector2d create(double x,
                       double y)
```
    Returns a 2-dimensional vector with the given component values.
    
    Parameters:
    
    x - the value of the X component
    
    y - the value of the Y component
    
    Returns:
    
    a 2-dimensional vector with the given component values
    
    Since:
    
    9.10.2
  - create
```
static Vector2d create(Vector2d vec)
```
    Returns a 2-dimensional vector with the X and Y values set to those of the given vector.
    
    Parameters:
    
    vec - the vector used for setting the values of the created vector
    
    Returns:
    
    a 2-dimensional vector with the values set to those of the given vector
    
    Since:
    
    9.10.2
  - to2dVectors
```
static List<Vector2d> to2dVectors(List<? extends Vector3d> vectors)
```
    Returns the vectors in the given list projected to the XY-plane. The order of the vectors is preserved.
    
    Parameters:
    
    vectors - vectors that are projected to the XY-plane
    
    Returns:
    
    the vectors in the given list projected to the XY-plane
    
    Since:
    
    9.10.2
  - subtract
```
MVector2d subtract(Vector2d vector)
```
    Returns the difference of this vector and the given vector.
    
    Parameters:
    
    vector - the vector on the right side of the difference
    
    Returns:
    
    the difference of this vector and the given vector
    
    Since:
    
    9.10.2
  - add
```
MVector2d add(Vector2d vector)
```
    Returns the sum of this vector and the given vector.
    
    Parameters:
    
    vector - the vector that is added to this to get the returned vector
    
    Returns:
    
    the sum of this vector and the given vector
    
    Since:
    
    9.10.2
  - angle
```
double angle(Vector2d vector)
```
    Returns the minimum angle between this vector and the given vector.
    
    Parameters:
    
    vector - the vector between which the angle is computed
    
    Returns:
    
    the angle between this vector and the given vector
    
    Since:
    
    9.10.2
  - dotProduct
```
double dotProduct(Vector2d vector)
```
    Returns the dot product between this vector and the given vector.
    
    Parameters:
    
    vector - the vector with which the dot product is computed
    
    Returns:
    
    the dot product between this vector and the given vector
    
    Since:
    
    9.10.2
  - equalsWithTolerance
```
boolean equalsWithTolerance(Vector2d other,
                            double tolerance)
```
    Returns true if this vector is within distance of tolerance to other.
    
    Parameters:
    
    other - the point that is compared for near equality in the XY-plane
    
    tolerance - the allowed distance between this vector and other
    
    Returns:
    
    true if this vector is within tolerance of other in the XY-plane
    
    Since:
    
    9.10.2
  - distance
```
double distance(Vector2d other)
```
    Returns the distance between this vector and the other vector in the XY-plane.
    
    Parameters:
    
    other - the vector to which the distance is computed in the XY-plane.
    
    Returns:
    
    the distance between this vector and other in the XY-plane.
    
    Since:
    
    9.10.2
  - distanceSquared
```
double distanceSquared(Vector2d other)
```
    Returns the square of the distance between this vector and the other vector in the XY-plane.
    
    Parameters:
    
    other - the vector to which the squared distance is computed in the XY-plane.
    
    Returns:
    
    the square of the distance between this vector and other in the XY-plane.
    
    Since:
    
    9.10.2
  - getLength
```
double getLength()
```
    Returns the length of this vector.
    
    Returns:
    
    the length of this vector
    
    Since:
    
    9.10.2
  - getLengthSquared
```
double getLengthSquared()
```
    Returns the squared length of this vector.
    
    Returns:
    
    the squared length of this vector
    
    Since:
    
    9.10.2
  - interpolate
```
MVector2d interpolate(Vector2d vector,
                      double alpha)
```
    Returns a vector that is the interpolation between this vector and the given vector so that the weight of the given vector is alpha (result is (1 - alpha) * this + alpha * vector). Values of alpha smaller than 0 default to 0 and values greater than 1 default to 1.
    
    Parameters:
    
    vector - the vector with which this is interpolated
    
    alpha - the interpolation factor
    
    Returns:
    
    a vector that is the interpolation between this vector and the given vector
    
    Since:
    
    9.10.2
  - negate
```
MVector2d negate()
```
    Returns a negated copy of this vector.
    
    Returns:
    
    a negated copy of this vector
    
    Since:
    
    9.10.2
  - normalize
```
MVector2d normalize()
```
    Returns a normalized copy of this vector.
    
    Returns:
    
    a normalized copy of this vector
    
    Since:
    
    9.10.2
  - getX
```
double getX()
```
    Returns the X component of this vector.
    
    Returns:
    
    the X component of this
    
    Since:
    
    9.10.2
  - getY
```
double getY()
```
    Returns the Y component of this vector.
    
    Returns:
    
    the Y component of this
    
    Since:
    
    9.10.2
  - scale
```
MVector2d scale(double scalar)
```
    Returns a copy of this vector scaled by the given scalar.
    
    Parameters:
    
    scalar - the scalar by which the returned vector is scaled
    
    Returns:
    
    a copy of this vector scaled by the given scalar
  - to3dVector
```
MVector3d to3dVector()
```
    Returns a new 3-dimensional vector with the X and Y components of this vector and the Z-component set to 0.
    
    Returns:
    
    a new 3-dimensional vector with the X and Y components of this vector and the Z-component set to 0
    
    Since:
    
    9.10.2
  - getClockwiseAngle
```
double getClockwiseAngle()
```
    This method retrieves the clockwise angle from the positive x-axis to the vector in radians. It produces values in the half-open interval [0,2pi), where the positive x-axis has the value 0 and the vectors approaching the positive x-axis from the positive y-axis -side will have values close to 2pi. Zero vector will return the value 0.0.
    
    Returns:
    
    the clockwise angle from the positive x-axis to the vector
    
    Since:
    
    9.10.2

Interface Vector2d

Field Summary

Method Summary

Field Detail

ZERO

UNIT_X

NEG_UNIT_X

UNIT_Y

NEG_UNIT_Y

Method Detail

create

create

to2dVectors

subtract

add

angle

dotProduct

equalsWithTolerance

distance

distanceSquared

getLength

getLengthSquared

interpolate

negate

normalize

getX

getY

scale

to3dVector

getClockwiseAngle