Unigine.Unigine::dvec2 Struct
This class represents a vector of 2 double components.
dvec2 Class
Members
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 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.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.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.dvec2 EPS
Description
Vector, filled with epsilon constant (1e-6f).dvec2 INF
Description
Vector, filled with infinity constant (1e+9f).dvec2 ONE
Description
Vector, filled with ones (1).dvec2 ZERO
Description
Vector, filled with zeros (0).Last update: 2018-08-10
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