Unigine::Unigine::dvec2 Struct
Header: | #include <UnigineMathLib.h> |
dvec2 Class
Members
dvec2 ( const __m128d & v ) #
Constructor. Initializes the vector using a given 128-bit variable as a source.We 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
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
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.
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 ( ) #
Returns the length of the vector.Return value
Vector length.double length2 ( ) #
Returns the squared length of the vector.Return value
Squared length of the vector.dvec2 & normalize ( ) #
Returns normalized vector.Return value
Normalized vector.__m128d operator __m128d ( ) #
Performs type conversion to __m128d.We do not recommend to use this method unless you have a clear understanding of SSE2.
const double * operator const double * ( ) #
Performs type conversion to const double *.const void * operator const void * ( ) #
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 val ) #
Performs scalar multiplication.Arguments
- double val - Scalar value.
Return value
Resulting vector.dvec2 & operator*= ( const dvec2 & val ) #
Performs vector multiplication.Arguments
- const dvec2 & val - Vector.
Return value
Resulting vector.dvec2 & operator+= ( const dvec2 & val ) #
Performs vector addition.Arguments
- const dvec2 & val - Vector.
Return value
Resulting vector.dvec2 operator- ( ) # const
Performs vector negation.Return value
Resulting vector.dvec2 & operator-= ( const dvec2 & val ) #
Performs vector subtraction.Arguments
- const dvec2 & val - Vector.
Return value
Resulting vector.dvec2 & operator/= ( double val ) #
Performs componentwise division of the vector by the scalar. Implemented using the calculation of inverse scalar value with subsequent by-component multiplication.Arguments
- double val - Scalar value.
Return value
Resulting vector.Examples
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 & val ) #
Performs componentwise division of vectors.Arguments
- const dvec2 & val - Vector.
Return value
Resulting vector.Examples
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 __m128d & val ) #
Sets the vector using a given 128-bit variable as a source.We do not recommend to use this method unless you have a clear understanding of SSE2.
Arguments
- const __m128d & val - 128-bit variable.
Return value
Vector.dvec2 & operator= ( const dvec2 & val ) #
Performs vector assignment. Destination vector = Source vector.Arguments
- const dvec2 & val - 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 sse ( const __m128d & val ) #
Sets the vector using a given 128-bit variable as a source.We do not recommend to use this method unless you have a clear understanding of SSE2.
Arguments
- const __m128d & val - 128-bit variable.
__m128d sse ( ) #
Returns vector components as a 128-bit variable.We do not recommend to use this method unless you have a clear understanding of SSE2.
Return value
128-bit variable.Last update:
2019-12-25
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