float4 structure

A vector with four components.

This type is available only in C++. Its .NET equivalent is System.Numerics.Vector4.

Constructors

Name	Description
float4()	Creates an uninitialized float4.
float4(float x, float y, float z, float w)	Creates a float4 with the specified values.
float4(float2 value, float z, float w)	Creates a float4 with x and y copied from a float2 plus the specified z and w values.
float4(float3 value, float w)	Creates a float4 with x, y and z copied from a float3 plus the specified w value.
explicit float4(float value)	Creates a float4 with all com.ents set to the specified value.
float4(Microsoft::?Graphics::?Canvas::?Numerics::?Vector4 const& value)	Converts a Microsoft.Graphics.Canvas.Numerics.Vector4 to a float4.

Functions

Name	Description
float length(float4 const& value)	Calculates the length, or Euclidean distance, of the vector.
float length_squared(float4 const& value)	Calculates the length, or Euclidean distance, of the vector squared.
float distance(float4 const& value1, float4 const& value2)	Calculates the Euclidean distance between two vectors.
float distance_squared(float4 const& value1, float4 const& value2)	Calculates the Euclidean distance between two vectors squared.
float dot(float4 const& vector1, float4 const& vector2)	Calculates the dot product of two vectors.
float4 normalize(float4 const& vector)	Creates a unit vector from the specified vector.
float4 min(float4 const& value1, float4 const& value2)	Returns a vector that contains the lowest value from each matching pair of components.
float4 max(float4 const& value1, float4 const& value2)	Returns a vector that contains the highest value from each matching pair of components.
float4 clamp(float4 const& value1, float4 const& min, float4 const& max)	Restricts a value to be within a specified range.
float4 lerp(float4 const& value1, float4 const& value2, float amount)	Performs a linear interpolation between two vectors.
float4 transform(float4 const& vector, float4x4 const& matrix)	Transforms a float4 by the given matrix.
float4 transform4(float3 const& position, float4x4 const& matrix)	Transforms a float3 by the given matrix, returning a float4.
float4 transform4(float2 const& position, float4x4 const& matrix)	Transforms a float2 by the given matrix, returning a float4.
float4 transform(float4 const& value, quaternion const& rotation)	Transforms a float4 by the given quaternion.
float4 transform4(float3 const& value, quaternion const& rotation)	Transforms a float3 by the given quaternion, returning a float4.
float4 transform4(float2 const& value, quaternion const& rotation)	Transforms a float2 by the given quaternion, returning a float4.

Methods

Name	Description
static float4 zero()	Returns a float4 with all of its components set to zero.
static float4 one()	Returns a float4 with all of its components set to one.
static float4 unit_x()	Returns the float4 (1, 0, 0, 0).
static float4 unit_y()	Returns the float4 (0, 1, 0, 0).
static float4 unit_z()	Returns the float4 (0, 0, 1, 0).
static float4 unit_w()	Returns the float4 (0, 0, 0, 1).

Operators

Name	Description
float4 operator+ (float4 const& value1, float4 const& value2)	Adds two vectors.
float4 operator- (float4 const& value1, float4 const& value2)	Subtracts a vector from a vector.
float4 operator* (float4 const& value1, float4 const& value2)	Multiplies the components of two vectors by each other.
float4 operator* (float4 const& value1, float value2)	Multiplies a vector by a scalar.
float4 operator* (float value1, float4 const& value2)	Multiplies a vector by a scalar.
float4 operator/ (float4 const& value1, float4 const& value2)	Divides the components of a vector by the components of another vector.
float4 operator/ (float4 const& value1, float value2)	Divides a vector by a scalar value.
float4 operator- (float4 const& value)	Returns a vector pointing in the opposite direction.
float4& operator+= (float4& value1, float4 const& value2)	In-place adds two vectors.
float4& operator-= (float4& value1, float4 const& value2)	In-place subtracts a vector from a vector.
float4& operator*= (float4& value1, float4 const& value2)	In-place multiplies the components of two vectors by each other.
float4& operator*= (float4& value1, float value2)	In-place multiplies a vector by a scalar.
float4& operator/= (float4& value1, float4 const& value2)	In-place divides the components of a vector by the components of another vector.
float4& operator/= (float4& value1, float value2)	In-place divides a vector by a scalar value.
bool operator== (float4 const& value1, float4 const& value2)	Determines whether two instances of float4 are equal.
bool operator!= (float4 const& value1, float4 const& value2)	Determines whether two instances of float4 are not equal.
operator Microsoft::?Graphics::?Canvas::?Numerics::?Vector4() const	Converts a float4 to a Microsoft.Graphics.Canvas.Numerics.Vector4.

Fields

Name	Description
float x	X component of the vector.
float y	Y component of the vector.
float z	Z component of the vector.
float w	W component of the vector.

Requirements

Requirement	Value
Namespace	Windows::Foundation::Numerics
Header	Windowsnumerics.h

See also

windowsnumerics.h APIs