QxrdFitterRingCircle Class Reference

#include <qxrdfitterringcircle.h>

Inheritance diagram for QxrdFitterRingCircle:

Collaboration diagram for QxrdFitterRingCircle:

Public Member Functions
	QxrdFitterRingCircle (QxrdCenterFinder *cf, int ringIndex, double x0, double y0)
	QxrdFitterRingCircle ()
int	fit ()
int	ringIndex () const
double	x0 () const
double	y0 () const
double	fittedX () const
double	fittedY () const
double	fittedR () const
Public Member Functions inherited from QxrdFitter
	QxrdFitter (QxrdCenterFinder *cf)
	QxrdFitter ()
QxrdCenterFinder *	cf () const
FitResult	reason () const
QString	reasonString () const

Protected Attributes
int	m_RingIndex
double	m_X0
double	m_Y0
double	m_FittedX
double	m_FittedY
double	m_FittedR
Protected Attributes inherited from QxrdFitter
QxrdCenterFinder *	m_CenterFinder
FitResult	m_Reason

Private Member Functions
void	evaluate (double *parm, double *xv, int np, int nx)

Static Private Member Functions
static void	staticEvaluate (double *parm, double *xv, int np, int nx, void *adata)

Additional Inherited Members
Public Types inherited from QxrdFitter
enum	FitResult {   Successful, NoResult, OutsideData, BadWidth,   BadPosition, BadHeight, LastReason }
Static Public Member Functions inherited from QxrdFitter
static QString	reasonString (FitResult i)

Detailed Description

Definition at line 6 of file qxrdfitterringcircle.h.

Constructor & Destructor Documentation

QxrdFitterRingCircle::QxrdFitterRingCircle	(	QxrdCenterFinder *	cf,
		int	ringIndex,
		double	x0,
		double	y0
	)

Definition at line 14 of file qxrdfitterringcircle.cpp.

                                                                                                    :
  QxrdFitter(cf),
  m_RingIndex(ringIndex),
  m_X0(x0),
  m_Y0(y0),
  m_FittedX(0),
  m_FittedY(0),
  m_FittedR(0)
{
}

QxrdFitterRingCircle::QxrdFitterRingCircle

(

)

Definition at line 25 of file qxrdfitterringcircle.cpp.

                                           :
  QxrdFitter(),
  m_RingIndex(-1),
  m_X0(0),
  m_Y0(0),
  m_FittedX(0),
  m_FittedY(0),
  m_FittedR(0)
{
}

Member Function Documentation

void QxrdFitterRingCircle::evaluate ( double *  parm, double *  xv, int  np, int  nx  )

private

Definition at line 45 of file qxrdfitterringcircle.cpp.

References QxrdPowderPoint::isValid(), QxrdFitter::m_CenterFinder, m_RingIndex, QxrdCenterFinder::powderRingPoint(), QxrdPowderPoint::x(), and QxrdPowderPoint::y().

Referenced by staticEvaluate().

{
  if (m_CenterFinder) {
    double cx = parm[0];
    double cy = parm[1];
    double r  = parm[2];

    for (int i=0; i<nx; i++) {
      QxrdPowderPoint pt = m_CenterFinder->powderRingPoint(m_RingIndex, i);

      if (pt.isValid()) {
        double dx = pt.x() - cx;
        double dy = pt.y() - cy;
        double rcalc = sqrt(dx*dx + dy*dy);

        xv[i] = rcalc - r;
      }
    }
  }
}

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int QxrdFitterRingCircle::fit ( )

virtual

Implements QxrdFitter.

Definition at line 66 of file qxrdfitterringcircle.cpp.

References QxrdCenterFinder::countPowderRingPoints(), QxrdFitter::m_CenterFinder, m_FittedR, m_FittedX, m_FittedY, QxrdFitter::m_Reason, m_RingIndex, m_X0, m_Y0, QxrdFitter::NoResult, QxrdCenterFinder::powderRingPoint(), staticEvaluate(), QxrdFitter::Successful, QxrdPowderPoint::x(), and QxrdPowderPoint::y().

Referenced by QxrdCenterFinder::fitPowderCircle().

{
  int niter = -1;

  if (m_CenterFinder) {

    int npts  = m_CenterFinder->countPowderRingPoints(m_RingIndex);
    double rsum = 0;

    for (int i=0; i<npts; i++) {
      QxrdPowderPoint pt = m_CenterFinder->powderRingPoint(m_RingIndex, i);

      double dx = pt.x() - m_X0;
      double dy = pt.y() - m_Y0;

      rsum += sqrt(dx*dx + dy*dy);
    }

    double parms[3];
    double info[LM_INFO_SZ];

    parms[0] = m_X0;
    parms[1] = m_Y0;
    parms[2] = rsum/npts;

    niter = dlevmar_dif(QxrdFitterRingCircle::staticEvaluate,
                            parms, NULL, 3, npts,
                            m_CenterFinder->get_PeakFitIterations(),
                            NULL, info, NULL, NULL, this);

    if (niter > 0) {
      m_Reason   = Successful;

      m_FittedX  = parms[0];
      m_FittedY  = parms[1];
      m_FittedR  = parms[2];
    } else {
      m_Reason   = NoResult;
    }
  }

  return niter;
}

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double QxrdFitterRingCircle::fittedR ( ) const

inline

Definition at line 19 of file qxrdfitterringcircle.h.

References m_FittedR.

Referenced by QxrdCenterFinder::fitPowderCircle().

{ return m_FittedR; }

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double QxrdFitterRingCircle::fittedX ( ) const

inline

Definition at line 17 of file qxrdfitterringcircle.h.

References m_FittedX.

Referenced by QxrdCenterFinder::fitPowderCircle().

{ return m_FittedX; }

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double QxrdFitterRingCircle::fittedY ( ) const

inline

Definition at line 18 of file qxrdfitterringcircle.h.

References m_FittedY.

Referenced by QxrdCenterFinder::fitPowderCircle().

{ return m_FittedY; }

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int QxrdFitterRingCircle::ringIndex ( ) const

inline

Definition at line 14 of file qxrdfitterringcircle.h.

References m_RingIndex.

{ return m_RingIndex; }

void QxrdFitterRingCircle::staticEvaluate ( double *  parm, double *  xv, int  np, int  nx, void *  adata  )

staticprivate

Definition at line 36 of file qxrdfitterringcircle.cpp.

References evaluate().

Referenced by fit().

{
  QxrdFitterRingCircle *rf = (QxrdFitterRingCircle*) adata;

  if (rf) {
    rf->evaluate(p,hx,m,n);
  }
}

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double QxrdFitterRingCircle::x0 ( ) const

inline

Definition at line 15 of file qxrdfitterringcircle.h.

References m_X0.

{ return m_X0; }

double QxrdFitterRingCircle::y0 ( ) const

inline

Definition at line 16 of file qxrdfitterringcircle.h.

References m_Y0.

{ return m_Y0; }

Member Data Documentation

double QxrdFitterRingCircle::m_FittedR

protected

Definition at line 31 of file qxrdfitterringcircle.h.

Referenced by fit(), and fittedR().

double QxrdFitterRingCircle::m_FittedX

protected

Definition at line 29 of file qxrdfitterringcircle.h.

Referenced by fit(), and fittedX().

double QxrdFitterRingCircle::m_FittedY

protected

Definition at line 30 of file qxrdfitterringcircle.h.

Referenced by fit(), and fittedY().

int QxrdFitterRingCircle::m_RingIndex

protected

Definition at line 26 of file qxrdfitterringcircle.h.

Referenced by evaluate(), fit(), and ringIndex().

double QxrdFitterRingCircle::m_X0

protected

Definition at line 27 of file qxrdfitterringcircle.h.

Referenced by fit(), and x0().

double QxrdFitterRingCircle::m_Y0

protected

Definition at line 28 of file qxrdfitterringcircle.h.

Referenced by fit(), and y0().

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

• qxrdfitterringcircle.h (Commit a65ccc9... : jennings : 2016-03-15 14:00:18 -0500)
• qxrdfitterringcircle.cpp (Commit a65ccc9... : jennings : 2016-03-15 14:00:18 -0500)