Unigine::Math::dvec3 Struct
| Header: | #include <UnigineMathLib.h> |
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 & 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 ( const double * val ) const#
Gets the vector: val[0]=x, val[1]=y, val[2]=z.Arguments
- const double * val - Pointer to the array of float elements.
const 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.const dvec3 & normalize ( ) #
Returns normalized vector.Return value
Normalized vector.const 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 * ( ) #
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 *.const dvec3 & operator*= ( double val ) #
Performs scalar multiplication.Arguments
- double val - Scalar value.
Return value
Resulting vector.dvec3 & operator*= ( const dvec3 & val ) #
Performs vector multiplication.Arguments
- const dvec3 & val - Vector.
Return value
Resulting vector.dvec3 & operator+= ( const dvec3 & val ) #
Performs vector addition.Arguments
- const dvec3 & val - Vector.
Return value
Resulting vector.dvec3 operator- ( ) const#
Performs vector negation.Return value
Resulting vector.dvec3 & operator-= ( const dvec3 & val ) #
Performs vector subtraction.Arguments
- const dvec3 & val - Vector.
Return value
Resulting vector.dvec3 & operator/= ( const dvec3 & val ) #
Performs componentwise division of vectors.Arguments
- const dvec3 & val - 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 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
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 & val ) #
Performs vector assignment. Destination vector = Source vector.Arguments
- const dvec3 & 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 & v0, const __m128d & v1 ) #
Sets the vector using two given 128-bit variables as a source.Notice
We do not recommend to use this method unless you have a clear understanding of SSE2.
Arguments
- const __m128d & v0 - 128-bit variable containing the first two double components (X, Y) of the vector.
- const __m128d & v1 - 128-bit variable containing the third double component (Z) of the vector.
__m128d sse0 ( ) #
Returns the values of the first two double components (X, Y) of the vector as a 128-bit variable.Notice
We do not recommend to use this method unless you have a clear understanding of SSE2.
Return value
128-bit variable containing the first two double components (X, Y) of the vector.void sse0 ( const __m128d & val ) #
Sets the values of the first two double components of the vector using a given 128-bit variable.Notice
We do not recommend to use this method unless you have a clear understanding of SSE2.
Arguments
- const __m128d & val - 128-bit variable containing the first two double components (X, Y) of the vector.
void sse1 ( const __m128d & val ) #
Sets the value of the third double component (Z) of the vector using a given 128-bit variable.Notice
We do not recommend to use this method unless you have a clear understanding of SSE2.
Arguments
- const __m128d & val - 128-bit variable containing the third double component (Z) of the vector.
__m128d sse1 ( ) #
Returns the value of the third double component (Z) of the vector as a 128-bit variable.Notice
We do not recommend to use this method unless you have a clear understanding of SSE2.
Return value
128-bit variable containing the third double component (Z) of the vector.Last update:
2021-04-29
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