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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 This version of documentation is OUTDATED, as it describes an older SDK version!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::dvec3 Struct

Header: #include <UnigineMathLibDVec3.h>

This class represents a vector of 3 double components.

Warning
Do not use the fourth component in the structure (align) as it may be implicitly changed by the structure’s operations.

dvec3 Class

Members


dvec3 ( const hvec3& v ) #

Constructor. Initializes the vector using a given hvec3 source vector.

Arguments

  • const hvec3& v - Source vector.

dvec3 ( ) #

Default constructor. Produces a zero vector.

dvec3 ( const dvec3& v ) #

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

Arguments

  • const dvec3& v - Source vector.

dvec3 ( const dvec2& v, double z ) #

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

Arguments

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

dvec3 ( double x, double y, double z ) #

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.

explicit dvec3 ( double v ) #

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

Arguments

  • double v - Scalar value.

explicit dvec3 ( const dvec2& v ) #

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

Arguments

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

explicit dvec3 ( const dvec4& v ) #

Constructor. Initializes the vector using a given four-component dvec4 source vector: x=v.x, y=v.y, z=v.z.

Arguments

  • const dvec4& v - Four-component source vector.

explicit dvec3 ( const vec3& v ) #

Constructor. Initializes the vector using a given vec3 source vector.

Arguments

  • const vec3& v - Source vector.

explicit dvec3 ( const ivec3& v ) #

Constructor. Initializes the vector using a given ivec3 source vector.

Arguments

  • const ivec3& v - Source vector.

explicit dvec3 ( 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].

Arguments

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

dvec3 ( const __m128d& v0, const __m128d& v1 ) #

Constructor. Initializes the vector using two __m128d (4 floats) 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 component of the vector in __m128d format (along with alignment).

explicit dvec3 ( float v ) #

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

Arguments

  • float v - Scalar value.

dvec3 ( double x, double y, double z, 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.
  • ConstexprTag - Auxiliary tag.

dvec3 ( double v, ConstexprTag ) #

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

Arguments

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

dvec3 & abs ( ) #

Returns the absolute values of the vector components.

Return value

Vector with absolute values.

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

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.

void set ( const double* val ) #

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

Arguments

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

void set ( const dvec2& val, double z_ ) #

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

Arguments

  • const dvec2& val - Two-component source vector.
  • double z_ - Scalar.

void set ( const dvec3& val ) #

Sets the vector equal to the specified source vector.

Arguments

  • const dvec3& val - Source vector.

void set ( double val ) #

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

Arguments

  • double val - Scalar.

void get ( double* val ) const#

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

Arguments

  • double* val - Pointer to the array of float 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.

dvec3 & normalize ( ) #

Returns normalized vector.

Return value

Normalized vector.

dvec3 & 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.

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 *.

dvec3 & operator*= ( double v ) #

Performs scalar multiplication.

Arguments

  • double v - Scalar value.

Return value

Resulting vector.

dvec3 & operator*= ( const dvec3& v ) #

Performs vector multiplication.

Arguments

  • const dvec3& v - Vector.

Return value

Resulting vector.

dvec3 & operator+= ( const dvec3& v ) #

Performs vector addition.

Arguments

  • const dvec3& v - Vector.

Return value

Resulting vector.

dvec3 operator- ( ) const#

Performs vector negation.

Return value

Resulting vector.

dvec3 & operator-= ( const dvec3& v ) #

Performs vector subtraction.

Arguments

  • const dvec3& v - Vector.

Return value

Resulting vector.

dvec3 & operator/= ( const dvec3& v ) #

Performs componentwise division of vectors.

Arguments

  • const dvec3& v - Vector.

Return value

Resulting vector.

Examples

Source code (UnigineScript)
dvec3 a, b;
a = dvec3(6.0, 10.0, 12.0);
b = dvec3(2.0, 5.0, 6.0);
a /= b;
/*
Initial values of vectors a and b:
	a (6.0, 10.0, 12.0)
	b (2.0, 5.0, 6.0)

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

dvec3 & 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)
dvec3 a = dvec3(6.0, 10.0, 12.0);
a /= 2.0;
/*
Initial value of vector a:
	a (6.0, 10.0, 12.0)

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

dvec3 & operator= ( const dvec3& v ) #

Performs vector assignment. Destination vector = Source vector.

Arguments

  • const dvec3& 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 - Vector multiplier.

void mul ( const dvec3& v ) #

Multiplies the vector by the value of the specified argument.

Arguments

  • const dvec3& 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 dvec3& v ) #

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

Arguments

  • const dvec3& v - A dvec3 divisor value.

void add ( double v ) #

Performs addition of the specified value.

Arguments

  • double v - Value.

void add ( const dvec3& v ) #

Performs addition of the specified value.

Arguments

  • const dvec3& v - Value.

dvec3 & 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 dvec3& v ) #

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

Arguments

  • const dvec3& v - Value.

dvec3 & operator-= ( double v ) #

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

Arguments

  • double v - Value.

double sum ( ) const#

Returns the sum of vector components.

double iLength ( ) const#

Returns the inverted length of the vector.

Return value

Inverted length.

double maxXY ( ) const#

Returns the maximum of X and Y components.

double max ( ) const#

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

double minXY ( ) #

Returns the minimum of X and Y components.

double min ( ) #

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

dvec3 sign ( ) const#

Returns the sign of all components as a dvec3 vector. If the sign of the component is more or equals 0, then the corresponding component of the result vector is 1.0; otherwise -1.0.

Return value

Result vector.

unsigned int hash ( ) const#

Last update: 2023-12-19
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