Unigine::Math::dvec2 Struct

功能列表:

Name	描述 View: Sort by:
dvec2	Constructor.
abs	Returns the absolute values of the vector components.
set	Sets the vector by components.
get	Gets the vector: val[0]=x, val[1]=y.
length	Returns the length of the vector.
length2	Returns the squared length of the vector.
iLength	Returns the inverted length of the vector.
operator const double *	Performs type conversion to const double *.
operator const void *	Performs type conversion to const void *.
operator double *	Performs type conversion to double *.
operator void *	Performs type conversion to void *.
*operator =**	Performs scalar multiplication.
operator +=	Performs vector addition.
operator -	Performs vector negation.
operator -=	Performs vector subtraction.
operator /=	Performs componentwise division of the vector by the scalar.
operator =	Performs vector assignment.
operator []	Performs array access to the vector item reference by using given item index.
mul	Multiplies the vector by the value of the specified argument.
div	Returns the result of division of the vector by the value of the specified arguments.
sub	Subtracts each element of the specified value from the corresponding vector's element.
sum	Returns the sum of vector components.
add	Performs addition of the specified value.
max	Returns the maximum value among all components.
min	Returns the minimum value among all components.
frac	Returns a vector containing fractional parts of the corresponding vector components.
floor	Returns a vector containing the largest integral values each being less than or equal to the corresponding vector component.
ceil	Returns a vector containing the smallest integral values each being greater than or equal to the corresponding vector component.
hash	Returns a hash obtained by mixing the hash values of vector components.

Variables:

Name	Description
dvec2_eps	Vector filled with epsilon constant (1e-6f).
dvec2_half	Vector filled with 0.5.
dvec2_inf	Vector filled with infinity constant (1e+9f).
dvec2_one	Vector filled with ones (1).
dvec2_zero	Vector filled with zeros (0).

dvec2 Class

Members

dvec2 ( const __m128d& v ) #

Constructor. Initializes the vector using a given 128-bit variable as a source.

NoticeWe do not recommend to use this method unless you have a clear understanding of SSE2.

Arguments

const __m128d& v - 128-bit variable.

dvec2 ( const hvec2& v ) #

Constructor. Initializes the vector using a given hvec2 source vector.

Arguments

const hvec2& v - Source vector.

dvec2 ( ) #

Default constructor. Produces a zero vector.

dvec2 ( const dvec2& v ) #

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

Arguments

const dvec2& v - Source vector.

dvec2 ( double x, double y ) #

Constructor. Initializes the vector using given double values.

Arguments

double x - X component of the vector.
double y - Y component of the vector.

Examples

Source code (UnigineScript)

dvec2(2.0, 3.0);
/*
Creates a vector (2.0, 3.0)
*/

explicit dvec2 ( double v ) #

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

Arguments

double v - Scalar value.

Examples

Source code (UnigineScript)

dvec2(1.0);
/*
Creates a vector (1.0, 1.0)
*/

explicit dvec2 ( const dvec3& v ) #

Constructor. Initializes the vector using a given three-component vec3 vector: x=v.x, y=v.y.

Arguments

const dvec3& v - Three-component source vector.

explicit dvec2 ( const dvec4& v ) #

Constructor. Initializes the vector using a given four-component vec4 source vector: x=v.x, y=v.y.

Arguments

const dvec4& v - Four-component source vector.

explicit dvec2 ( const vec2& v ) #

Constructor. Initializes the vector using a given vec2 source vector.

Arguments

const vec2& v - Source vector.

explicit dvec2 ( const ivec2& v ) #

Constructor. Initializes the vector using a given ivec2 source vector.

Arguments

const ivec2& v - Source vector.

explicit dvec2 ( const double* v ) #

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

Arguments

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

dvec2 ( double x, double y, ConstexprTag ) #

Constructor. Initializes the vector using a given double elements.

Arguments

double x - Source element.
double y - Source element.
ConstexprTag - Auxiliary tag.

dvec2 ( double v, ConstexprTag ) #

Constructor. Initializes both vector components using a given double element.

Arguments

double v - Source element.
ConstexprTag - Auxiliary tag.

dvec2 & abs ( ) #

Returns the absolute values of the vector components.

Return value

Vector with absolute values.

void set ( double x_, double y_ ) #

Sets the vector by components.

Arguments

double x_ - X component of the vector.
double y_ - Y component of the vector.

void set ( const double* val ) #

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

Arguments

const double* val - Pointer to the array of double elements.

void set ( double val ) #

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

Arguments

double val - Scalar value.

void set ( const dvec2& val ) #

Sets the vector equal to the specified source vector.

Arguments

const dvec2& val - Source vector.

void get ( double* val ) const#

Gets the vector: val[0]=x, val[1]=y.

Arguments

double* val - 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.

double iLength ( ) const#

Returns the inverted length of the vector.

Return value

Inverted length.

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 *.

dvec2 & operator*= ( double v ) #

Performs scalar multiplication.

Arguments

double v - Scalar value.

Return value

Resulting vector.

dvec2 & operator*= ( const dvec2& v ) #

Performs vector multiplication.

Arguments

const dvec2& v - Vector.

Return value

Resulting vector.

dvec2 & operator+= ( const dvec2& v ) #

Performs vector addition.

Arguments

const dvec2& v - Vector.

Return value

Resulting vector.

dvec2 & operator+= ( double v ) #

Performs addition of the specified value.

Arguments

double v - Value.

dvec2 operator- ( ) const#

Performs vector negation.

Return value

Resulting vector.

dvec2 & operator-= ( const dvec2& v ) #

Performs vector subtraction.

Arguments

const dvec2& v - Vector.

Return value

Resulting vector.

dvec2 & operator-= ( double v ) #

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

Arguments

double v - Value.

dvec2 & 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)

dvec2 a = dvec2(6.0, 10.0);
a /= 2.0;
/*
Initial value of vector a:
	a (6.0, 10.0)

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

dvec2 & operator/= ( const dvec2& v ) #

Performs componentwise division of vectors.

Arguments

const dvec2& v - Vector.

Return value

Resulting vector.

Examples

Source code (UnigineScript)

dvec2 a, b;
a = dvec2(6.0, 10.0);
b = dvec2(2.0, 5.0);
a /= b;
/*
Initial values of vectors a and b:
	a (6.0, 10.0)
	b (2.0, 5.0)

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

dvec2 & operator= ( const dvec2& v ) #

Performs vector assignment. Destination vector = Source vector.

Arguments

const dvec2& 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 dvec2& v ) #

Multiplies the vector by the value of the specified argument.

Arguments

const dvec2& v - Vector 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 dvec2& v ) #

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

Arguments

const dvec2& v - A dvec2 divisor 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 dvec2& v ) #

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

Arguments

const dvec2& v - 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 dvec2& v ) #

Performs addition of the specified value.

Arguments

const dvec2& v - Value.

double max ( ) const#

Returns the maximum value among all components.

Return value

Maximum value.

double min ( ) const#

Returns the minimum value among all components.

Return value

Minimum value.

dvec2 frac ( ) const#

Returns a vector containing fractional parts of the corresponding vector components.

Return value

Fractional parts of the corresponding vector components.

ivec2 floor ( ) const#

Returns a vector containing the largest integral values each being less than or equal to the corresponding vector component.

Return value

Vector containing the largest integral values.

ivec2 ceil ( ) const#

Returns a vector containing the smallest integral values each being greater than or equal to the corresponding vector component.

Return value

Vector containing the smallest integral values.

unsigned int hash ( ) const#

Returns a hash obtained by mixing the hash values of vector components.

Return value

32-bit hash value.

Last update: 2024-12-13

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Unigine::Math::dvec2 Struct

In This Article:

功能列表:

Variables:

dvec2 Class

Members

dvec2 ( const __m128d& v ) #

Arguments

dvec2 ( const hvec2& v ) #

Arguments

dvec2 ( ) #

dvec2 ( const dvec2& v ) #

Arguments

dvec2 ( double x, double y ) #

Arguments

Examples

explicit dvec2 ( double v ) #

Arguments

Examples

explicit dvec2 ( const dvec3& v ) #

Arguments

explicit dvec2 ( const dvec4& v ) #

Arguments

explicit dvec2 ( const vec2& v ) #

Arguments

explicit dvec2 ( const ivec2& v ) #

Arguments

explicit dvec2 ( const double* v ) #

Arguments

dvec2 ( double x, double y, ConstexprTag ) #

Arguments

dvec2 ( double v, ConstexprTag ) #

Arguments

dvec2 & abs ( ) #

Return value

void set ( double x_, double y_ ) #

Arguments

void set ( const double* val ) #

Arguments

void set ( double val ) #

Arguments

void set ( const dvec2& val ) #

Arguments

void get ( double* val ) const#

Arguments

double * get ( ) #

Return value

const double * get ( ) const#

Return value

double length ( ) const#

Return value

double length2 ( ) const#

Return value

double iLength ( ) const#

Return value

const double * operator const double * ( ) const#

const void * operator const void * ( ) const#

double * operator double * ( ) #

void * operator void * ( ) #

dvec2 & operator*= ( double v ) #

Arguments

Return value

dvec2 & operator*= ( const dvec2& v ) #

Arguments

Return value

dvec2 & operator+= ( const dvec2& v ) #

Arguments

Return value

dvec2 & operator+= ( double v ) #

Arguments

dvec2 operator- ( ) const#

Return value

dvec2 & operator-= ( const dvec2& v ) #

Arguments

Return value

dvec2 & operator-= ( double v ) #

Arguments

dvec2 & operator/= ( double v ) #

Arguments

Return value