DGtal::detail::TangentAngleFromDSS Struct Reference

#include <DGtal/geometry/curves/estimation/SegmentComputerEstimators.h>

Public Types
typedef double	Value

Public Member Functions
template<typename DSS >
Value	operator() (const DSS &aDSS) const

Detailed Description

Description of class 'TangentAngleFromDSS'

Aim: computes the tangent orientation of a DSS (angle in [-pi,+pi] radians between the tangent and the x-axis).

Definition at line 681 of file SegmentComputerEstimators.h.

Member Typedef Documentation

Value

typedef double DGtal::detail::TangentAngleFromDSS::Value

Definition at line 684 of file SegmentComputerEstimators.h.

Member Function Documentation

operator()()

template<typename DSS >

Value DGtal::detail::TangentAngleFromDSS::operator() ( const DSS & aDSS ) const

inline

Operator()

Returns

the angle of type double (angle in [-pi,+pi] radians between the tangent and the x-axis).

Parameters

aDSS	an instance of segment computer devoted to the DSS recognition.

Template Parameters

DSS	a model of segment computer, which must have methods a() and b() returning the y- and x-component of the tangent vector.

Definition at line 701 of file SegmentComputerEstimators.h.

      {
        Value a = (Value) NumberTraits<typename DSS::Integer>
          ::castToDouble(aDSS.a());      
        Value b = (Value) NumberTraits<typename DSS::Integer>
          ::castToDouble(aDSS.b());      
 
              return std::atan2(a,b);
      }

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The documentation for this struct was generated from the following file:

• SegmentComputerEstimators.h