npstat::CircularMapper1d Class Reference

#include <CircularMapper1d.h>

Public Member Functions
double	a () const
double	b () const
	CircularMapper1d ()
	CircularMapper1d (const double ca, const double cb, const double cperiod)
	CircularMapper1d (const LinearMapper1d &mapper, const double cperiod)
LinearMapper1d	linearMapper () const
double	operator() (const double &x) const
double	period () const

Private Member Functions
void	check ()

Private Attributes
double	a_
double	b_
double	period_

Detailed Description

1-d linear transformation functor followed by the shift of the result into the interval [-T/2, T/2], where T is the period

Definition at line 23 of file CircularMapper1d.h.

Constructor & Destructor Documentation

npstat::CircularMapper1d::CircularMapper1d ( )

inline

Definition at line 25 of file CircularMapper1d.h.

: a_(1.0), b_(0.0), period_(2.0 * M_PI) {}

npstat::CircularMapper1d::CircularMapper1d ( const double  ca, const double  cb, const double  cperiod  )

inline

Definition at line 27 of file CircularMapper1d.h.

References check().

        : a_(ca), b_(cb), period_(std::abs(cperiod)) {
      check();
    }

npstat::CircularMapper1d::CircularMapper1d ( const LinearMapper1d &  mapper, const double  cperiod  )

inline

Definition at line 32 of file CircularMapper1d.h.

References check().

        : a_(mapper.a()), b_(mapper.b()), period_(std::abs(cperiod)) {
      check();
    }

Member Function Documentation

double npstat::CircularMapper1d::a ( ) const

inline

Definition at line 45 of file CircularMapper1d.h.

References a_.

{ return a_; }

double npstat::CircularMapper1d::b ( ) const

inline

Definition at line 46 of file CircularMapper1d.h.

References b_.

{ return b_; }

void npstat::CircularMapper1d::check ( void  )

inlineprivate

Definition at line 51 of file CircularMapper1d.h.

References period_.

Referenced by CircularMapper1d().

                        {
      if (!period_)
        throw npstat::NpstatInvalidArgument(
            "In npstat::CircularMapper1d constructor: "
            "invalid period argument (can not be 0)");
    }

LinearMapper1d npstat::CircularMapper1d::linearMapper ( ) const

inline

Definition at line 48 of file CircularMapper1d.h.

References a_, and b_.

{ return LinearMapper1d(a_, b_); }

double npstat::CircularMapper1d::operator() ( const double &  x ) const

inline

Definition at line 37 of file CircularMapper1d.h.

References a_, b_, period_, and relativeConstraints::value.

                                                    {
      double value = a_ * x + b_;
      value -= period_ * floor(value / period_);
      if (value > period_ / 2.0)
        value -= period_;
      return value;
    }

double npstat::CircularMapper1d::period ( ) const

inline

Definition at line 47 of file CircularMapper1d.h.

References period_.

{ return period_; }

Member Data Documentation

double npstat::CircularMapper1d::a_

private

Definition at line 58 of file CircularMapper1d.h.

Referenced by a(), linearMapper(), and operator()().

double npstat::CircularMapper1d::b_

private

Definition at line 59 of file CircularMapper1d.h.

Referenced by b(), linearMapper(), and operator()().

double npstat::CircularMapper1d::period_

private

Definition at line 60 of file CircularMapper1d.h.

Referenced by check(), operator()(), and period().