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Vec< _Tp, cn > Class Template Reference
[Basic structures]
Template class for short numerical vectors, a partial case of Matx. More...
#include <matx.hpp>
Inherits Matx< _Tp, cn, 1 >.
Public Member Functions | |
| Vec () | |
| default constructor | |
| Vec (_Tp v0) | |
| 1-element vector constructor | |
| Vec (_Tp v0, _Tp v1) | |
| 2-element vector constructor | |
| Vec (_Tp v0, _Tp v1, _Tp v2) | |
| 3-element vector constructor | |
| Vec (_Tp v0, _Tp v1, _Tp v2, _Tp v3) | |
| 4-element vector constructor | |
| Vec (_Tp v0, _Tp v1, _Tp v2, _Tp v3, _Tp v4) | |
| 5-element vector constructor | |
| Vec (_Tp v0, _Tp v1, _Tp v2, _Tp v3, _Tp v4, _Tp v5) | |
| 6-element vector constructor | |
| Vec (_Tp v0, _Tp v1, _Tp v2, _Tp v3, _Tp v4, _Tp v5, _Tp v6) | |
| 7-element vector constructor | |
| Vec (_Tp v0, _Tp v1, _Tp v2, _Tp v3, _Tp v4, _Tp v5, _Tp v6, _Tp v7) | |
| 8-element vector constructor | |
| Vec (_Tp v0, _Tp v1, _Tp v2, _Tp v3, _Tp v4, _Tp v5, _Tp v6, _Tp v7, _Tp v8) | |
| 9-element vector constructor | |
| Vec (_Tp v0, _Tp v1, _Tp v2, _Tp v3, _Tp v4, _Tp v5, _Tp v6, _Tp v7, _Tp v8, _Tp v9) | |
| 10-element vector constructor | |
| Vec (_Tp v0, _Tp v1, _Tp v2, _Tp v3, _Tp v4, _Tp v5, _Tp v6, _Tp v7, _Tp v8, _Tp v9, _Tp v10, _Tp v11, _Tp v12, _Tp v13) | |
| 14-element vector constructor | |
| Vec | mul (const Vec< _Tp, cn > &v) const |
| per-element multiplication | |
| Vec | conj () const |
| conjugation (makes sense for complex numbers and quaternions) | |
| Vec | cross (const Vec &v) const |
| template<typename T2 > | |
| operator Vec< T2, cn > () const | |
| conversion to another data type | |
| const _Tp & | operator[] (int i) const |
| const _Tp & | operator() (int i) const |
| 1D element access | |
| diag_type | diag () const |
| extract the matrix diagonal | |
| _Tp | dot (const Matx< _Tp, m, n > &v) const |
| dot product computed with the default precision | |
| double | ddot (const Matx< _Tp, m, n > &v) const |
| dot product computed in double-precision arithmetics | |
| operator Matx< T2, m, n > () const | |
| conversion to another data type | |
| Matx< _Tp, m1, n1 > | reshape () const |
| change the matrix shape | |
| Matx< _Tp, m1, n1 > | get_minor (int i, int j) const |
| extract part of the matrix | |
| Matx< _Tp, 1, n > | row (int i) const |
| extract the matrix row | |
| Matx< _Tp, m, 1 > | col (int i) const |
| extract the matrix column | |
| Matx< _Tp, n, m > | t () const |
| transpose the matrix | |
| Matx< _Tp, n, m > | inv (int method=DECOMP_LU, bool *p_is_ok=NULL) const |
| invert the matrix | |
| Matx< _Tp, n, l > | solve (const Matx< _Tp, m, l > &rhs, int flags=DECOMP_LU) const |
| solve linear system | |
| Matx< _Tp, m, n > | mul (const Matx< _Tp, m, n > &a) const |
| multiply two matrices element-wise | |
| Matx< _Tp, m, n > | div (const Matx< _Tp, m, n > &a) const |
| divide two matrices element-wise | |
| const _Tp & | operator() (int i, int j) const |
| element access | |
Detailed Description
template<typename _Tp, int cn>
class cv::Vec< _Tp, cn >
Template class for short numerical vectors, a partial case of Matx.
This template class represents short numerical vectors (of 1, 2, 3, 4 ... elements) on which you can perform basic arithmetical operations, access individual elements using [] operator etc. The vectors are allocated on stack, as opposite to std::valarray, std::vector, cv::Mat etc., which elements are dynamically allocated in the heap.
The template takes 2 parameters:
- Template Parameters:
-
_Tp element type cn the number of elements
In addition to the universal notation like Vec<float, 3>, you can use shorter aliases for the most popular specialized variants of Vec, e.g. Vec3f ~ Vec<float, 3>.
It is possible to convert Vec<T,2> to/from Point_, Vec<T,3> to/from Point3_ , and Vec<T,4> to CvScalar or Scalar_. Use operator[] to access the elements of Vec.
All the expected vector operations are also implemented:
- v1 = v2 + v3
- v1 = v2 - v3
- v1 = v2 \* scale
- v1 = scale \* v2
- v1 = -v2
- v1 += v2 and other augmenting operations
- v1 == v2, v1 != v2
- norm(v1) (euclidean norm) The Vec class is commonly used to describe pixel types of multi-channel arrays. See Mat for details.
Definition at line 305 of file matx.hpp.
Constructor & Destructor Documentation
| Vec | ( | ) |
default constructor
| Vec | ( | _Tp | v0 ) |
1-element vector constructor
| Vec | ( | _Tp | v0, |
| _Tp | v1 | ||
| ) |
2-element vector constructor
| Vec | ( | _Tp | v0, |
| _Tp | v1, | ||
| _Tp | v2 | ||
| ) |
3-element vector constructor
| Vec | ( | _Tp | v0, |
| _Tp | v1, | ||
| _Tp | v2, | ||
| _Tp | v3 | ||
| ) |
4-element vector constructor
| Vec | ( | _Tp | v0, |
| _Tp | v1, | ||
| _Tp | v2, | ||
| _Tp | v3, | ||
| _Tp | v4 | ||
| ) |
5-element vector constructor
| Vec | ( | _Tp | v0, |
| _Tp | v1, | ||
| _Tp | v2, | ||
| _Tp | v3, | ||
| _Tp | v4, | ||
| _Tp | v5 | ||
| ) |
6-element vector constructor
| Vec | ( | _Tp | v0, |
| _Tp | v1, | ||
| _Tp | v2, | ||
| _Tp | v3, | ||
| _Tp | v4, | ||
| _Tp | v5, | ||
| _Tp | v6 | ||
| ) |
7-element vector constructor
| Vec | ( | _Tp | v0, |
| _Tp | v1, | ||
| _Tp | v2, | ||
| _Tp | v3, | ||
| _Tp | v4, | ||
| _Tp | v5, | ||
| _Tp | v6, | ||
| _Tp | v7 | ||
| ) |
8-element vector constructor
| Vec | ( | _Tp | v0, |
| _Tp | v1, | ||
| _Tp | v2, | ||
| _Tp | v3, | ||
| _Tp | v4, | ||
| _Tp | v5, | ||
| _Tp | v6, | ||
| _Tp | v7, | ||
| _Tp | v8 | ||
| ) |
9-element vector constructor
| Vec | ( | _Tp | v0, |
| _Tp | v1, | ||
| _Tp | v2, | ||
| _Tp | v3, | ||
| _Tp | v4, | ||
| _Tp | v5, | ||
| _Tp | v6, | ||
| _Tp | v7, | ||
| _Tp | v8, | ||
| _Tp | v9 | ||
| ) |
10-element vector constructor
| Vec | ( | _Tp | v0, |
| _Tp | v1, | ||
| _Tp | v2, | ||
| _Tp | v3, | ||
| _Tp | v4, | ||
| _Tp | v5, | ||
| _Tp | v6, | ||
| _Tp | v7, | ||
| _Tp | v8, | ||
| _Tp | v9, | ||
| _Tp | v10, | ||
| _Tp | v11, | ||
| _Tp | v12, | ||
| _Tp | v13 | ||
| ) |
14-element vector constructor
Member Function Documentation
| Matx<_Tp, m, 1> col | ( | int | i ) | const [inherited] |
extract the matrix column
| Vec conj | ( | ) | const |
conjugation (makes sense for complex numbers and quaternions)
Reimplemented in Scalar_< _Tp >, and Scalar_< double >.
cross product of the two 3D vectors.
For other dimensionalities the exception is raised
| double ddot | ( | const Matx< _Tp, m, n > & | v ) | const [inherited] |
dot product computed in double-precision arithmetics
| diag_type diag | ( | ) | const [inherited] |
extract the matrix diagonal
divide two matrices element-wise
| _Tp dot | ( | const Matx< _Tp, m, n > & | v ) | const [inherited] |
dot product computed with the default precision
| Matx<_Tp, m1, n1> get_minor | ( | int | i, |
| int | j | ||
| ) | const [inherited] |
extract part of the matrix
| Matx<_Tp, n, m> inv | ( | int | method = DECOMP_LU, |
| bool * | p_is_ok = NULL |
||
| ) | const [inherited] |
invert the matrix
multiply two matrices element-wise
| operator Matx< T2, m, n > | ( | ) | const [inherited] |
conversion to another data type
| operator Vec< T2, cn > | ( | ) | const |
conversion to another data type
| const _Tp& operator() | ( | int | i ) | const |
1D element access
Reimplemented from Matx< _Tp, cn, 1 >.
| const _Tp& operator() | ( | int | i, |
| int | j | ||
| ) | const [inherited] |
element access
| const _Tp& operator[] | ( | int | i ) | const |
element access
| Matx<_Tp, m1, n1> reshape | ( | ) | const [inherited] |
change the matrix shape
| Matx<_Tp, 1, n> row | ( | int | i ) | const [inherited] |
extract the matrix row
solve linear system
| Matx<_Tp, n, m> t | ( | ) | const [inherited] |
transpose the matrix
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