Unigine::Math::dvec4 Struct
Header: | #include <UnigineMathLibDVec4.h> |
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
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.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
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
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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