ps_ctf_plot.cpp File Reference

Postscript output functions for calculating CTF parameters. More...

#include "ps_plot.h"
#include "ps_ctf_plot.h"
#include "moving_average.h"
#include "utilities.h"

Functions
int	ps_show_ctf_param (Bplot *plot, CTFparam &em_ctf)
int	ps_show_ctf_fit (Bplot *plot, CTFparam &em_ctf)
int	ps_ctf_plot (Bstring &filename, CTFparam &em_ctf, size_t n, double freq_step)
	Generates a postscript plot from CTF parameters for defocus and the envelope. More...
int	ps_ctf_plot (long n, double *rps, double interval, CTFparam *em_ctf, Bstring &filename)
	Generates a postscript plot of a contrast transfer function. More...
int	ps_ctf_defocus_zeroes (Bstring &filename, double volts, double Cs, double amp_shift)
	Generates a postscript plot of defocus versus zeroes. More...
int	point_spread (size_t n, vector< double > &a, double step)
int	ps_point_spread (Bstring &filename, CTFparam &em_ctf, size_t n, double freq_step)
	Generates a point spread plot from CTF envelope parameters. More...

Variables
int	verbose

Detailed Description

Postscript output functions for calculating CTF parameters.

Author

Bernard Heymann

Date

Created: 20010515

Modified: 20220221

Function Documentation

point_spread()

int point_spread	(	size_t	n,
		vector< double > &	a,
		double	step
	)

ps_ctf_defocus_zeroes()

int ps_ctf_defocus_zeroes	(	Bstring &	filename,
		double	volts,
		double	Cs,
		double	amp_shift
	)

Generates a postscript plot of defocus versus zeroes.

Parameters

&filename	postscript output file name.
volts	accelerating voltage (in volts).
Cs	spherical aberration (in angstrom).
amp_shift	amplitude contribution phase shift (radians).

Returns

int 0.

A postscript plot is generated from microscope and defocus parameters
to show the corresponding defocus and zero values.
Defocus is given in um.

ps_ctf_plot() [1/2]

int ps_ctf_plot	(	Bstring &	filename,
		CTFparam &	em_ctf,
		size_t	n,
		double	freq_step
	)

Generates a postscript plot from CTF parameters for defocus and the envelope.

Parameters

&filename	postscript file name.
&em_ctf	CTF parameter structure.
n	number of reciprocal space steps.
freq_step	spatial frequency increment per step.

Returns

int 0.

Postscript output is generated from microscope and defocus
parameters.

ps_ctf_plot() [2/2]

int ps_ctf_plot	(	long	n,
		double *	rps,
		double	interval,
		CTFparam *	em_ctf,
		Bstring &	filename
	)

Generates a postscript plot of a contrast transfer function.

Parameters

n	number of elements in the radial power spectrum.
*rps	radial power spectrum.
interval	spatial frequency step size.
*em_ctf	CTF parameter structure.
&filename	postscript file name.

Returns

int 0.

Postscript output is generated from fitted defocus, envelope and background
parameters and compared to the radial average of the power spectrum image.

ps_point_spread()

int ps_point_spread	(	Bstring &	filename,
		CTFparam &	em_ctf,
		size_t	n,
		double	freq_step
	)

Generates a point spread plot from CTF envelope parameters.

Parameters

&filename	postscript file name.
&em_ctf	CTF parameter structure.
n	number of reciprocal space steps.
freq_step	spatial frequency increment per step.

Returns

int 0.

Postscript output is generated from microscope and defocus
parameters.

ps_show_ctf_fit()

int ps_show_ctf_fit	(	Bplot *	plot,
		CTFparam &	em_ctf
	)

ps_show_ctf_param()

int ps_show_ctf_param	(	Bplot *	plot,
		CTFparam &	em_ctf
	)

Variable Documentation

verbose

int verbose

extern