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VectorNormSqFunctor< ValueType > Class Template Reference |  |
A functor for computing the squared vector norm. More...
#include <vigra/transformimage.hxx>
Public Types | |
| typedef ValueType | argument_type |
| typedef NumericTraits < typename ValueType::value_type > ::RealPromote | result_type |
Public Member Functions | |
| result_type | operator() (const argument_type &a) const |
Detailed Description
template<class ValueType>
class vigra::VectorNormSqFunctor< ValueType >
A functor for computing the squared vector norm.
Calculate the squared magnitude or norm from a given vector-valued entity. The vector type will typically be some sort of TinyVector.
At least, the vector type is required to have a function 'result = dot(v,v)'.
For an example of its usage see VectorNormFunctor
Traits defined:
FunctorTraits::isUnaryFunctor is true (VigraTrueType)
- See Also
- TinyVector, dot()
Member Typedef Documentation
| typedef ValueType argument_type |
the functor's argument type
| typedef NumericTraits<typename ValueType::value_type>::RealPromote result_type |
the functor's result type
Member Function Documentation
| result_type operator() | ( | const argument_type & | a | ) | const |
calculate transform 'v1*v1 + v2*v2 + ...'.
The documentation for this class was generated from the following file:
- vigra/transformimage.hxx