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# FbxVector4 Class Reference

This reference page is linked to from the following overview topics: List of Python Fbx classes.

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## Detailed Description

A four double mathematic vector class.

Definition at line 25 of file fbxvector4.h.

`#include <fbxvector4.h>`

Inheritance diagram for FbxVector4:
[legend]

List of all members.

## Public Member Functions
bool | IsZero (int pSize=4) const
| Find out if the vector is equal to zero.
void | FixIncorrectValue ()
int | Compare (const FbxVector4 &pV, const double pThreshold=FBXSDK_TOLERANCE) const
## Constructors and Destructor
| FbxVector4 ()
| Constructor.
| FbxVector4 (const FbxVector4 &pVector4)
| Copy constructor.
| FbxVector4 (double pX, double pY, double pZ, double pW=1.0)
| Constructor.
| FbxVector4 (const double pValue[4])
| Constructor.
| FbxVector4 (const FbxDouble3 &pValue)
| Constructor.
## Access
FbxVector4 & | operator= (const FbxVector4 &pVector4)
| Assignment operation.
FbxVector4 & | operator= (const double *pValue)
| Assignment operation.
FbxVector4 & | operator= (const FbxDouble3 &pValue)
| Assignment operation.
void | Set (double pX, double pY, double pZ, double pW=1.0)
| Set vector.
## Scalar Operations
FbxVector4 | operator+ (double pValue) const
| Add a value to all vector components.
FbxVector4 | operator- (double pValue) const
| Subtract a value from all vector components.
FbxVector4 | operator* (double pValue) const
| Multiply a value to all vector components.
FbxVector4 | operator/ (double pValue) const
| Divide all vector components by a value.
FbxVector4 & | operator+= (double pValue)
| Add a value to all vector components.
FbxVector4 & | operator-= (double pValue)
| Subtract a value from all vector components.
FbxVector4 & | operator*= (double pValue)
| Multiply a value to all vector elements.
FbxVector4 & | operator/= (double pValue)
| Divide all vector elements by a value.
## Vector Operations
FbxVector4 | operator- () const
| Unary minus operator.
FbxVector4 | operator+ (const FbxVector4 &pVector) const
| Add two vectors together.
FbxVector4 | operator- (const FbxVector4 &pVector) const
| Subtract a vector from another vector.
FbxVector4 | operator* (const FbxVector4 &pVector) const
| Memberwise multiplication of two vectors.
FbxVector4 | operator/ (const FbxVector4 &pVector) const
| Memberwise division of a vector with another vector.
FbxVector4 & | operator+= (const FbxVector4 &pVector)
| Add two vectors together.
FbxVector4 & | operator-= (const FbxVector4 &pVector)
| Subtract a vector from another vector.
FbxVector4 & | operator*= (const FbxVector4 &pVector)
| Memberwise multiplication of two vectors.
FbxVector4 & | operator/= (const FbxVector4 &pVector)
| Memberwise division of a vector with another vector.
double | DotProduct (const FbxVector4 &pVector) const
| Calculate the dot product of two vectors.
FbxVector4 | CrossProduct (const FbxVector4 &pVector) const
| Calculate the cross product of two vectors.
static bool | AxisAlignmentInEulerAngle (const FbxVector4 &pAB, const FbxVector4 &pA, const FbxVector4 &pB, FbxVector4 &pAngles)
| Calculate the Euler rotation required to align axis pAB-pA on pAB-pB.
## Boolean Operations
bool | operator== (const FbxVector4 &pVector) const
| Equivalence operator.
bool | operator!= (const FbxVector4 &pVector) const
| Non equivalence operator.
## Length
double | Length () const
| Get the vector's length.
double | SquareLength () const
| Get the vector's length squared.
double | Distance (const FbxVector4 &pVector) const
| Find the distance between 2 vectors.
void | Normalize ()
| Normalize the vector, length set to 1.
void | SetXYZ (const FbxQuaternion pQuat)
| Set the Euler XYZ from a Quaternion.
## Casting
| operator double * ()
| Cast the vector in a double pointer.
| operator const double * () const
| Cast the vector in a const double pointer.

## Constructor & Destructor Documentation

FbxVector4 | ( |  | ) |

Constructor.

FbxVector4 | ( | const FbxVector4 & | pVector4 | ) |

Copy constructor.

Parameters:

  pVector4 | The vector copied to this one.

FbxVector4 | ( | double | pX,
|  | double | pY,
|  | double | pZ,
|  | double | pW = `1.0`
| ) |  |

Constructor.

Parameters:

  pX | X component.
  pY | Y component.
  pZ | Z component.
  pW | W component.

FbxVector4 | ( | const double | pValue[4] | ) |

Constructor.

Parameters:

  pValue | X,Y,Z,W components.

FbxVector4 | ( | const FbxDouble3 & | pValue | ) |

Constructor.

Parameters:

  pValue | X,Y,Z components.

Remarks:
  The fourth component of this object is assigned 1.

## Member Function Documentation

FbxVector4& operator= | ( | const FbxVector4 & | pVector4 | ) |

Assignment operation.

Parameters:

  pVector4 | The vector assigned to this one.

Returns:
  This vector after assignment.

FbxVector4& operator= | ( | const double * | pValue | ) |

Assignment operation.

Parameters:

  pValue | The pointer to an array whose elements are assigned to this vector.

Returns:
  This vector after assignment.

FbxVector4& operator= | ( | const FbxDouble3 & | pValue | ) |

Assignment operation.

Parameters:

  pValue | The vector with 3 elements assigned to this vector.

Returns:
  This vector after assignment.

Remarks:
  The first three elements are assigned with pValue. The fourth element is set as 1.0

void Set | ( | double | pX,
|  | double | pY,
|  | double | pZ,
|  | double | pW = `1.0`
| ) |  |

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Set vector.

Parameters:

  pX | The X component value.
  pY | The Y component value.
  pZ | The Z component value.
  pW | The W component value.

FbxVector4 operator+ | ( | double | pValue | ) | const

Add a value to all vector components.

Parameters:

  pValue | The value to add to each component of the vector.

Returns:
  New vector.

Remarks:
  The passed value is not checked.

FbxVector4 operator- | ( | double | pValue | ) | const

Subtract a value from all vector components.

Parameters:

  pValue | The value to subtract from each component of the vector.

Returns:
  New vector.

Remarks:
  The passed value is not checked.

FbxVector4 operator* | ( | double | pValue | ) | const

Multiply a value to all vector components.

Parameters:

  pValue | The value multiplying each component of the vector.

Returns:
  New vector.

Remarks:
  The passed value is not checked.

FbxVector4 operator/ | ( | double | pValue | ) | const

Divide all vector components by a value.

Parameters:

  pValue | The value dividing each component of the vector.

Returns:
  New vector.

Remarks:
  The passed value is not checked.

FbxVector4& operator+= | ( | double | pValue | ) |

Add a value to all vector components.

Parameters:

  pValue | The value to add to each component of the vector.

Returns:
  this updated with the operation result.

Remarks:
  The passed value is not checked.

FbxVector4& operator-= | ( | double | pValue | ) |

Subtract a value from all vector components.

Parameters:

  pValue | The value to subtract from each component of the vector.

Returns:
  this updated with the operation result.

Remarks:
  The passed value is not checked.

FbxVector4& operator*= | ( | double | pValue | ) |

Multiply a value to all vector elements.

Parameters:

  pValue | The value multiplying each component of the vector.

Returns:
  this updated with the operation result.

Remarks:
  The passed value is not checked.

FbxVector4& operator/= | ( | double | pValue | ) |

Divide all vector elements by a value.

Parameters:

  pValue | The value dividing each component of the vector.

Returns:
  this updated with the operation result.

Remarks:
  The passed value is not checked.

FbxVector4 operator- | ( |  | ) | const

Unary minus operator.

Returns:
  The vector that is the negation of `this`.

FbxVector4 operator+ | ( | const FbxVector4 & | pVector | ) | const

Add two vectors together.

Parameters:

  pVector | Vector to add.

Returns:
  The vector v' = this + pVector.

Remarks:
  The values in pVector are not checked.

FbxVector4 operator- | ( | const FbxVector4 & | pVector | ) | const

Subtract a vector from another vector.

Parameters:

  pVector | Vector to subtract.

Returns:
  The vector v' = this - pVector.

Remarks:
  The values in pVector are not checked.

FbxVector4 operator* | ( | const FbxVector4 & | pVector | ) | const

Memberwise multiplication of two vectors.

Parameters:

  pVector | Multiplying vector.

Returns:
  The vector v' = this * pVector.

Remarks:
  The values in pVector are not checked.

FbxVector4 operator/ | ( | const FbxVector4 & | pVector | ) | const

Memberwise division of a vector with another vector.

Parameters:

  pVector | Dividing vector.

Returns:
  The vector v[i]' = this[i] / pVector[i].

Remarks:
  The values in pVector are not checked.

FbxVector4& operator+= | ( | const FbxVector4 & | pVector | ) |

Add two vectors together.

Parameters:

  pVector | Vector to add.

Returns:
  this updated with the operation result.

Remarks:
  The values in pVector are not checked.

FbxVector4& operator-= | ( | const FbxVector4 & | pVector | ) |

Subtract a vector from another vector.

Parameters:

  pVector | Vector to subtract.

Returns:
  this updated with the operation result.

Remarks:
  The values in pVector are not checked.

FbxVector4& operator*= | ( | const FbxVector4 & | pVector | ) |

Memberwise multiplication of two vectors.

Parameters:

  pVector | Multiplying vector.

Returns:
  this updated with the operation result.

Remarks:
  The values in pVector are not checked.

FbxVector4& operator/= | ( | const FbxVector4 & | pVector | ) |

Memberwise division of a vector with another vector.

Parameters:

  pVector | Dividing vector.

Returns:
  this updated with the operation result.

Remarks:
  The values in pVector are not checked.

double DotProduct | ( | const FbxVector4 & | pVector | ) | const

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Calculate the dot product of two vectors.

Parameters:

  pVector | The second vector.

Returns:
  The dot product value.

Remarks:
  Being considered as a XYZ vector with a weight, only the 3 first elements are considered in this operation.

FbxVector4 CrossProduct | ( | const FbxVector4 & | pVector | ) | const

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Calculate the cross product of two vectors.

Parameters:

  pVector | The second vector.

Returns:
  The cross product vector.

Remarks:
  Being considered as a XYZ vector with a weight, only the first 3 elements are considered in this operation.

static bool AxisAlignmentInEulerAngle | ( | const FbxVector4 & | pAB,
|  | const FbxVector4 & | pA,
|  | const FbxVector4 & | pB,
|  | FbxVector4 & | pAngles
| ) |  | `[static]`

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Calculate the Euler rotation required to align axis pAB-pA on pAB-pB.

Parameters:

  pAB | The intersection of the 2 axis.
  pA | A point on axis to be aligned.
  pB | A point on reference axis.
  pAngles | Resulting euler angles.

Returns:
  `true` on success.

Remarks:
  Being considered as a XYZ vector with a weight, only the first 3 elements are considered in this operation.

bool operator== | ( | const FbxVector4 & | pVector | ) | const

Equivalence operator.

Parameters:

  pVector | The vector to be compared to this.

Returns:
  `true` if the two vectors are equal (each element is within a FBXSDK_TOLERANCE tolerance) and `false` otherwise.

bool operator!= | ( | const FbxVector4 & | pVector | ) | const

Non equivalence operator.

Parameters:

  pVector | The vector to be compared to this.

Returns:
  `false` if the two vectors are equal (each element is within a FBXSDK_TOLERANCE tolerance) and `true` otherwise.

double Length | ( |  | ) | const

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Get the vector's length.

Returns:
  The mathematical length of the vector.

Remarks:
  Being considered as a XYZ vector with a weight, only the first 3 elements are considered in this operation.

double SquareLength | ( |  | ) | const

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Get the vector's length squared.

Returns:
  The mathematical square length of the vector.

Remarks:
  Being considered as a XYZ vector with a weight, only the first 3 elements are considered in this operation.

double Distance | ( | const FbxVector4 & | pVector | ) | const

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Find the distance between 2 vectors.

Parameters:

  pVector | The second vector.

Returns:
  The mathematical distance between the two vectors.

Remarks:
  Being considered as a XYZ vector with a weight, only the 3 first elements are considered in this operation.

void Normalize | ( |  | ) |

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Normalize the vector, length set to 1.

Remarks:
  Being considered as a XYZ vector with a weight, only the first 3 elements are considered in this operation.

void SetXYZ | ( | const FbxQuaternion | pQuat | ) |

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Set the Euler XYZ from a Quaternion.

Parameters:

  pQuat | Quaternion from which Euler XYZ information is got.

operator double * | ( |  | ) |

Cast the vector in a double pointer.

operator const double * | ( |  | ) | const

Cast the vector in a const double pointer.

bool IsZero | ( | int | pSize = `4` | ) | const

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Find out if the vector is equal to zero.

Parameters:

  pSize | The number of element to test, starting at beginning. Value must range between [1, 4].

Returns:
  `true` if all elements of the vector are zero, `false` otherwise.

void FixIncorrectValue | ( |  | ) |

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int Compare | ( | const FbxVector4 & | pV,
|  | const double | pThreshold = `FBXSDK_TOLERANCE`
| ) |  | const

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The documentation for this class was generated from the following file:

- fbxsdk/core/math/fbxvector4.h

FbxVector4 FbxVector4 FbxVector4 FbxVector4 FbxVector4 FbxVector4 FbxVector4 FbxVector4 FbxVector4 FbxVector4
FbxVector4 FbxVector4 FbxVector4 FbxVector4 FbxVector4 FbxVector4 FbxVector4 FbxVector4 FbxVector4 FbxVector4