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Warning! This version of documentation is OUTDATED, as it describes an older SDK version! Please switch to the documentation for the latest SDK version.
Warning! This version of documentation describes an old SDK version which is no longer supported! Please upgrade to the latest SDK version.

Unigine::Math::dvec4 Struct

Header: #include <UnigineMathLibDVec4.h>

This class represents a vector of 4 double components.

dvec4 Class

Members


dvec4 ( const hvec4& v ) #

Constructor. Initializes the vector using a given hvec4 source vector.

Arguments

  • const hvec4& v - Source vector.

dvec4 ( ) #

Default constructor. Produces a zero vector.

dvec4 ( const dvec4& v ) #

Constructor. Initializes the vector by copying a given source vector.

Arguments

  • const dvec4& v - Source vector.

dvec4 ( const dvec2& v, double z, double w ) #

Constructor. Initializes the vector using a given two-component dvec2 source vector and two scalars.

Arguments

  • const dvec2& v - Two-component source vector.
  • double z - Z component of the vector.
  • double w - W component of the vector.

dvec4 ( const dvec3& v, double w ) #

Constructor. Initializes the vector using a given three-component dvec3 source vector and a scalar.

Arguments

  • const dvec3& v - Three-component source vector.
  • double w - W component of the vector.

dvec4 ( double x, double y, double z, double w ) #

Constructor. Initializes the vector using given double values.

Arguments

  • double x - X component of the vector.
  • double y - Y component of the vector.
  • double z - Z component of the vector.
  • double w - W component of the vector.

Examples

Source code (UnigineScript)
dvec4(1.0, 2.0, 3.0, 4.5);
/*
Creates a vector (1.0, 2.0, 3.0, 4.5)
*/

explicit dvec4 ( double v ) #

Constructor. Initializes the vector using a given scalar value: x=v, y=v, z=v, w=v.

Arguments

  • double v - Scalar value.

explicit dvec4 ( const dvec2& v ) #

Constructor. Initializes the vector using a given two-component dvec2 source vector: x=v.x, y=v.y, z=0.0f, w=1.0f.

Arguments

  • const dvec2& v - Two-component source vector.

explicit dvec4 ( const dvec3& v ) #

Constructor. Initializes the vector using a given three-component dvec3 source vector: x=v.x, y=v.y, z=v.z, w=1.0f.

Arguments

  • const dvec3& v - Three-component source vector.

explicit dvec4 ( const vec4& v ) #

Constructor. Initializes the vector using a given vec4 source vector.

Arguments

  • const vec4& v - Source vector.

explicit dvec4 ( const ivec4& v ) #

Constructor. Initializes the vector using a given ivec4 source vector.

Arguments

  • const ivec4& v - Source vector.

explicit dvec4 ( const bvec4& v ) #

Constructor. Initializes the vector using a given bvec4 source vector.

Arguments

  • const bvec4& v - Source vector.

explicit dvec4 ( const svec4& v ) #

Constructor. Initializes the vector using a given svec4 source vector.

Arguments

  • const svec4& v - Source vector.

explicit dvec4 ( const double* v ) #

Constructor. Initializes the vector using a given pointer to the array of double elements: x=v[0], y=v[1], z=v[2], w=v[3].

Arguments

  • const double* v - Pointer to the array of double elements.

dvec4 ( const __m128d& v0, const __m128d& v1 ) #

Constructor. Initializes the vector using two __m128d variables.
Notice
We do not recommend to use this method unless you have a clear understanding of SSE2.

Arguments

  • const __m128d& v0 - X and Y components of the vector in __m128d format.
  • const __m128d& v1 - Z and W components of the vector in __m128d format.

dvec4 ( const dvec2& v0, const dvec2& v1 ) #

Constructor. Initializes the vector using two dvec2 vectors.

Arguments

  • const dvec2& v0 - Two-component source vector for X and Y components.
  • const dvec2& v1 - Two-component source vector for Z and W components.

dvec4 ( double x, double y, double z, double w, ConstexprTag ) #

Constructor. Initializes the vector using given constant double values.

Arguments

  • double x - X component of the vector.
  • double y - Y component of the vector.
  • double z - Z component of the vector.
  • double w - W component of the vector.
  • ConstexprTag - Auxiliary tag.

dvec4 ( double v, ConstexprTag ) #

Constructor. Initializes the vector using a given constant scalar value: x=v, y=v, z=v, w=v.

Arguments

  • double v - Constant scalar value.
  • ConstexprTag - Auxiliary tag.

dvec4 & abs ( ) #

Returns the absolute values of the vector components.

Return value

Vector with absolute values.

void set ( double x_, double y_, double z_, double w_ ) #

Sets the vector by components.

Arguments

  • double x_ - X component of the vector.
  • double y_ - Y component of the vector.
  • double z_ - Z component of the vector.
  • double w_ - W component of the vector.

void set ( const double* v ) #

Sets the vector using the array of double elements: x=val[0], y=val[1], z=val[2], w=val[3].

Arguments

  • const double* v - Pointer to the array of double elements.

void set ( const dvec4& v ) #

Sets the vector equal to the specified source vector.

Arguments

  • const dvec4& v - Source vector.

void set ( const dvec3& v, double w_ ) #

Sets the vector using a three-component dvec3 source vector and a scalar.

Arguments

  • const dvec3& v - Three-component source vector.
  • double w_ - W component of the vector.

void set ( double v ) #

Sets the vector components equal to specified scalar value: x=val, y=val, z=val, w=val.

Arguments

  • double v - Scalar value.

void set ( const dvec2& v, double z_, double w_ ) #

Sets the vector using a two-component dvec2 source vector and two scalars.

Arguments

  • const dvec2& v - Two-component source vector.
  • double z_ - Z component of the vector.
  • double w_ - W component of the vector.

void get ( double* v ) const#

Gets the vector: val[0]=x, val[1]=y, val[2]=z, val[3]=w.

Arguments

  • double* v - Pointer to the array of double elements.

double * get ( ) #

Returns the pointer to the vector.

Return value

Pointer to the vector.

const double * get ( ) const#

Returns the constant pointer to the vector.

Return value

Pointer to the vector.

double length ( ) const#

Returns the length of the vector.

Return value

Vector length.

double length2 ( ) const#

Returns the squared length of the vector.

Return value

Squared length of the vector.

dvec4 & normalize ( ) #

Returns normalized vector.

Return value

Normalized vector.

dvec4 & normalizeValid ( ) #

Normalizes a vector, makes its magnitude equal to 1. When normalized, a vector keeps the same direction but its length is equal to 1. Check for the zero vector is performed: if the argument is a zero vector, then a zero vector is returned.

Return value

Normalized vector.

dvec4 & normalize3 ( ) #

Returns the vector with normalized XYZ components.

Return value

Vector with normalized XYZ components.

dvec4 & normalizeValid3 ( ) #

Returns the vector with normalized XYZ components. Check for the zero vector is performed: if the argument is a zero vector, then a zero vector is returned.

Return value

Vector with normalized XYZ components.

const double * operator const double * ( ) const#

Performs type conversion to const double *.

const void * operator const void * ( ) const#

Performs type conversion to const void *.

double * operator double * ( ) #

Performs type conversion to double *.

void * operator void * ( ) #

Performs type conversion to void *.

dvec4 & operator*= ( double v ) #

Performs scalar multiplication.

Arguments

  • double v - Scalar value.

Return value

Resulting vector.

dvec4 & operator*= ( const dvec4& v ) #

Performs vector multiplication.

Arguments

  • const dvec4& v - Vector.

Return value

Resulting vector.

dvec4 & operator+= ( const dvec4& v ) #

Performs vector addition.

Arguments

  • const dvec4& v - Vector.

Return value

Resulting vector.

dvec4 operator- ( ) const#

Performs vector negation.

Return value

Resulting vector.

dvec4 & operator-= ( const dvec4& v ) #

Performs vector subtraction.

Arguments

  • const dvec4& v - Vector.

Return value

Resulting vector.

dvec4 & operator/= ( const dvec4& v ) #

Performs componentwise division of vectors.

Arguments

  • const dvec4& v - Vector.

Return value

Resulting vector.

Examples

Source code (UnigineScript)
dvec4 a, b;
a = dvec4(6.0, 10.0, 12.0, 25.0);
b = dvec4(2.0, 5.0, 6.0, 5.0);
a /= b;
/*
Initial values of vectors a and b:
	a (6.0, 10.0, 12.0, 25.0)
	b (2.0, 5.0, 6.0, 5.0)

	a /= b;
Vector a after operation:	
	a (3.0, 2.0, 2.0, 5.0)	
*/

dvec4 & operator/= ( double v ) #

Performs componentwise division of the vector by the scalar. Implemented using the calculation of inverse scalar value with subsequent by-component multiplication.

Arguments

  • double v - Scalar value.

Return value

Resulting vector.

Examples

Source code (UnigineScript)
dvec4 a = dvec4(6.0, 10.0, 12.0, 25.0);
a /= 2.0;
/*
Initial value of vector a:
	a (6.0, 10.0, 12.0, 25.0)

	a /= 2.0;
Vector a after operation:	
	a (3.0, 5.0, 6.0, 12.5)	
*/

dvec4 & operator= ( const dvec4& v ) #

Performs vector assignment. Destination vector = Source vector.

Arguments

  • const dvec4& v - Source vector.

Return value

Result.

double & operator[] ( int i ) #

Performs array access to the vector item reference by using given item index.

Arguments

  • int i - Vector item index.

Return value

Vector item reference.

double operator[] ( int i ) const#

Performs array access to the vector item by using given item index.

Arguments

  • int i - Vector item index.

Return value

Vector item.

void mul ( double v ) #

Multiplies the vector by the value of the specified argument.

Arguments

  • double v - A double multiplier.

void mul ( const dvec4& v ) #

Multiplies the vector by the value of the specified argument.

Arguments

  • const dvec4& v - Vector multiplier.

void mul3 ( double v ) #

Multiplies the X, Y, and Z components of the vector by the value of the specified argument.

Arguments

  • double v - A double multiplier.

void div ( double v ) #

Returns the result of division of the vector by the value of the specified arguments.

Arguments

  • double v - A double divisor value.

void div ( const dvec4& v ) #

Returns the result of division of the vector by the value of the specified arguments.

Arguments

  • const dvec4& v - A dvec4 divisor value.

double sum ( ) const#

Returns the sum of vector components.

void add ( double v ) #

Performs addition of the specified value.

Arguments

  • double v - Value.

void add ( const dvec4& v ) #

Performs addition of the specified value.

Arguments

  • const dvec4& v - Value.

dvec4 & operator+= ( double v ) #

Performs addition of the specified value.

Arguments

  • double v - Value.

void sub ( double v ) #

Subtracts each element of the specified value from the corresponding vector's element.

Arguments

  • double v - Value.

void sub ( const dvec4& v ) #

Subtracts each element of the specified value from the corresponding vector's element.

Arguments

  • const dvec4& v - Value.

dvec4 & operator-= ( double v ) #

Subtracts each element of the specified value from the corresponding vector's element.

Arguments

  • double v - Value.

double iLength ( ) const#

Returns the inverted length of the vector.

double maxXY ( ) const#

Returns the maximum of X and Y components.

double maxXYZ ( ) const#

Returns the maximum of X, Y, and Z components.

double max ( ) const#

Returns the maximum of X, Y, Z, and W components.
Last update: 2022-02-04
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