PsfModel Class Reference

Public Types

• typedef Cheby2D_7< double, double > PSFPattern
• typedef PSFPattern::TPar TPar
• typedef PSFPattern::param_type param_type
• typedef PSFPattern::value_type value_type

Public Member Functions

• PsfModel ()
• PsfModel (const std::string &filename)
• PsfModel (const PsfModel &other)
• virtual ~PsfModel ()
• void init_from_file (const std::string &filename)
• double get_sigx_xy (float x, float y) const
• double get_sigy_xy (float x, float y) const
• double get_h2y_xy (float x, float y) const
• double get_h3y_xy (float x, float y) const
• void print_sigx_coefficients (std::ostream &os) const
• void print_sigy_coefficients (std::ostream &os) const
• MArray< float, 2 > get_psf (const int psf_x, const int psf_y, const float x, const float y, const Distortion &D) const

  get normalized PSF at {x,y} with size psf_x and psf_y
  

• void fit_params (const list< PsfDataTuple > &PeakPars)

  compute best fit parameters for psf width in x (sx) and y (sy)
  

Protected Attributes

• TPar sigx_par_

  best fit parameters of sigma-x fit
  

• TPar sigy_par_

  best fit parameters of sigma-y fit (fiber model)
  

• TPar h2y_par_

  best fit parameters of H2 (fiber model)
  

• TPar h3y_par_

  best fit parameters of H3 (fiber model)
  

Friends

• std::ostream & operator<< (std::ostream &os, const PsfModel &d)
• std::istream & operator>> (std::istream &is, PsfModel &d)

---

Detailed Description

Model the spectrograph+camera PSF as a function of position on a VIRUS CCD. Together with Distortion and FiberModel, this forms a complete model of the VIRUS sperctrograph.

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Member Typedef Documentation

typedef Cheby2D_7<double,double> PsfModel::PSFPattern

typedef PSFPattern::TPar PsfModel::TPar

typedef PSFPattern::param_type PsfModel::param_type

typedef PSFPattern::value_type PsfModel::value_type

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Constructor & Destructor Documentation

PsfModel::PsfModel

(

)

PsfModel::PsfModel

(

const std::string &

filename

)

References init_from_file().

PsfModel::PsfModel

(

const PsfModel &

other

)

References h2y_par_, h3y_par_, sigx_par_, and sigy_par_.

virtual PsfModel::~PsfModel

(

)

[inline, virtual]

---

Member Function Documentation

void PsfModel::init_from_file

(

const std::string &

filename

)

Referenced by PsfModel(), and VFrame::read_psfmodels().

double PsfModel::get_sigx_xy	(	float	x,
		float	y
	)			const

References _scalx_, _scaly_, and sigx_par_.

Referenced by plot_model().

double PsfModel::get_sigy_xy	(	float	x,
		float	y
	)			const

References _scalx_, _scaly_, and sigy_par_.

Referenced by plot_model().

double PsfModel::get_h2y_xy	(	float	x,
		float	y
	)			const

double PsfModel::get_h3y_xy	(	float	x,
		float	y
	)			const

void PsfModel::print_sigx_coefficients

(

std::ostream &

os

)

const

References Cheby2D_7< double, double >::prettyPrint(), and sigx_par_.

void PsfModel::print_sigy_coefficients

(

std::ostream &

os

)

const

References Cheby2D_7< double, double >::prettyPrint(), and sigy_par_.

MArray< float, 2 > PsfModel::get_psf	(	const int	psf_x,
		const int	psf_y,
		const float	x,
		const float	y,
		const Distortion &	D
	)			const

References _scalx_, _scaly_, Distortion::get_position_angle(), h2y_par_, h3y_par_, Distortion::map_xy_fiber(), Distortion::map_xy_wavelength(), sigx_par_, and sigy_par_.

Referenced by Projector::fill_in_point_source_model(), and Projector::get_psf_grid().

void PsfModel::fit_params

(

const list< PsfDataTuple > &

PeakPars

)

References _scalx_, _scaly_, PsfDataTuple::dSigX, PsfDataTuple::dSigY, BivariateLinearLsqFit< T, Function >::fit(), PsfDataTuple::H2Y, h2y_par_, PsfDataTuple::H3Y, h3y_par_, PsfDataTuple::SigX, sigx_par_, PsfDataTuple::SigY, sigy_par_, PsfDataTuple::X, and PsfDataTuple::Y.

Referenced by fit_initial_dist(), and main().

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Friends And Related Function Documentation

std::ostream& operator<<	(	std::ostream &	os,
		const PsfModel &	d
	)			[friend]

std::istream& operator>>	(	std::istream &	is,
		PsfModel &	d
	)			[friend]

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Field Documentation

TPar PsfModel::sigx_par_ [protected]

Referenced by fit_params(), get_psf(), get_sigx_xy(), operator<<(), operator>>(), print_sigx_coefficients(), and PsfModel().

TPar PsfModel::sigy_par_ [protected]

Referenced by fit_params(), get_psf(), get_sigy_xy(), operator<<(), operator>>(), print_sigy_coefficients(), and PsfModel().

TPar PsfModel::h2y_par_ [protected]

Referenced by fit_params(), get_psf(), operator<<(), operator>>(), and PsfModel().

TPar PsfModel::h3y_par_ [protected]

Referenced by fit_params(), get_psf(), operator<<(), operator>>(), and PsfModel().