---

Trapezoid2RectangleMappingX Class Reference

Maps a trapezoidal coordinate system into a cartesian one. More...

#include <MagneticField/Interpolation/src/Trapezoid2RectangleMappingX.h>

List of all members.

Public Member Functions
void	rectangle (double xtrap, double ytrap, double &xrec, double &yrec) const
void	trapezoid (double xrec, double yrec, double &xtrap, double &ytrap) const
	Trapezoid2RectangleMappingX (double x0, double y0, double k)
	special parallelogram case, a == b. The meaning of k changes.
	Trapezoid2RectangleMappingX (double x0, double y0, double bovera, double h)
	normal trapezoid case, a != b
	Trapezoid2RectangleMappingX ()
Private Attributes
double	k_
bool	parallel_
double	x0_
double	y0_

---

Detailed Description

Maps a trapezoidal coordinate system into a cartesian one.

It is assumed that x is the coordinate along the trapezoid bases while y is along the trapezoid height.

Date

2008/04/09 19:56:21

Revision

1.2

Author:

T. Todorov

Definition at line 23 of file Trapezoid2RectangleMappingX.h.

---

Constructor & Destructor Documentation

Trapezoid2RectangleMappingX::Trapezoid2RectangleMappingX

(

)

[inline]

Definition at line 26 of file Trapezoid2RectangleMappingX.h.

{}

Trapezoid2RectangleMappingX::Trapezoid2RectangleMappingX	(	double	x0,
		double	y0,
		double	bovera,
		double	h
	)			[inline]

normal trapezoid case, a != b

Definition at line 29 of file Trapezoid2RectangleMappingX.h.

References GenMuonPlsPt100GeV_cfg::cout, lat::endl(), and k_.

                                                                              :
    x0_(x0), y0_(y0), parallel_(false)
  {
    k_ = 2/h * (bovera-1.) / (bovera+1.);

#ifdef DEBUG_GRID_TRM
    cout << "Trapezoid2RectangleMappingX constructed with x0,y0 " << x0 << " " << y0 
         << " b/a= " << bovera << " h= " << h << endl;
#endif
  }

Trapezoid2RectangleMappingX::Trapezoid2RectangleMappingX	(	double	x0,
		double	y0,
		double	k
	)			[inline]

special parallelogram case, a == b. The meaning of k changes.

Definition at line 41 of file Trapezoid2RectangleMappingX.h.

References GenMuonPlsPt100GeV_cfg::cout, and lat::endl().

                                                               :
    x0_(x0), y0_(y0), k_(k), parallel_(true)
  {
#ifdef DEBUG_GRID_TRM
    cout << "Trapezoid2RectangleMappingX constructed with x0,y0 " << x0 << " " << y0 
         << " k= " << k << endl;
#endif
  }

---

Member Function Documentation

void Trapezoid2RectangleMappingX::rectangle	(	double	xtrap,
		double	ytrap,
		double &	xrec,
		double &	yrec
	)			const [inline]

Definition at line 50 of file Trapezoid2RectangleMappingX.h.

References GenMuonPlsPt100GeV_cfg::cout, lat::endl(), k_, parallel_, x0_, and y0_.

Referenced by TrapezoidalCartesianMFGrid::toGridFrame(), TrapezoidalCylindricalMFGrid::toGridFrame(), TrapezoidalCartesianMFGrid::TrapezoidalCartesianMFGrid(), TrapezoidalCylindricalMFGrid::TrapezoidalCylindricalMFGrid(), and TrapezoidalCartesianMFGrid::uncheckedValueInTesla().

                                                    {

    yrec = ytrap - y0_;
    if (!parallel_) xrec = (xtrap - x0_) / (1.+ yrec*k_);
    else            xrec = xtrap - x0_ + k_*yrec;

#ifdef DEBUG_GRID
    cout << xtrap << " " << ytrap << " transformed to rectangle " << xrec << " " << yrec << endl;
#endif
  }

void Trapezoid2RectangleMappingX::trapezoid	(	double	xrec,
		double	yrec,
		double &	xtrap,
		double &	ytrap
	)			const [inline]

Definition at line 62 of file Trapezoid2RectangleMappingX.h.

References GenMuonPlsPt100GeV_cfg::cout, lat::endl(), k_, parallel_, x0_, and y0_.

Referenced by TrapezoidalCartesianMFGrid::fromGridFrame(), and TrapezoidalCylindricalMFGrid::fromGridFrame().

                                                      {
    if (!parallel_) xtrap = x0_ + xrec * (1.+ yrec*k_);
    else            xtrap = x0_ + xrec - k_*yrec;
    ytrap = y0_ + yrec;

#ifdef DEBUG_GRID
    cout << xrec << " " << yrec << " transformed to trapezoid " << xtrap << " " << ytrap << endl;
#endif
  }

---

Member Data Documentation

double Trapezoid2RectangleMappingX::k_ [private]

Definition at line 76 of file Trapezoid2RectangleMappingX.h.

Referenced by rectangle(), trapezoid(), and Trapezoid2RectangleMappingX().

bool Trapezoid2RectangleMappingX::parallel_ [private]

Definition at line 77 of file Trapezoid2RectangleMappingX.h.

Referenced by rectangle(), and trapezoid().

double Trapezoid2RectangleMappingX::x0_ [private]

Definition at line 74 of file Trapezoid2RectangleMappingX.h.

Referenced by rectangle(), and trapezoid().

double Trapezoid2RectangleMappingX::y0_ [private]

Definition at line 75 of file Trapezoid2RectangleMappingX.h.

Referenced by rectangle(), and trapezoid().

---

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

• MagneticField/Interpolation/src/Trapezoid2RectangleMappingX.h

---