proj.c File Reference

#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include "poly.h"
#include "proj.h"
#include "tnx.h"
#include "wcsmath.h"
#include "wcstrig.h"

Include dependency graph for proj.c:

Macros
#define	wcs_copysign(X, Y)   ((Y) < 0.0 ? -fabs(X) : fabs(X))

Functions
int	azpset (struct prjprm *prj)
int	azpfwd (double phi, double theta, struct prjprm *prj, double *x, double *y) const
int	azprev (double x, double y, struct prjprm *prj, double *phi, double *theta) const
int	tanset (struct prjprm *prj)
int	tanfwd (double phi, double theta, struct prjprm *prj, double *x, double *y) const
int	tanrev (double x, double y, struct prjprm *prj, double *phi, double *theta) const
int	sinset (struct prjprm *prj)
int	sinfwd (double phi, double theta, struct prjprm *prj, double *x, double *y) const
int	sinrev (double x, double y, struct prjprm *prj, double *phi, double *theta) const
int	stgset (struct prjprm *prj)
int	stgfwd (double phi, double theta, struct prjprm *prj, double *x, double *y) const
int	stgrev (double x, double y, struct prjprm *prj, double *phi, double *theta) const
int	arcset (struct prjprm *prj)
int	arcfwd (double phi, double theta, struct prjprm *prj, double *x, double *y) const
int	arcrev (double x, double y, struct prjprm *prj, double *phi, double *theta) const
int	zpnset (struct prjprm *prj)
int	zpnfwd (double phi, double theta, struct prjprm *prj, double *x, double *y) const
int	zpnrev (double x, double y, struct prjprm *prj, double *phi, double *theta) const
int	zeaset (struct prjprm *prj)
int	zeafwd (double phi, double theta, struct prjprm *prj, double *x, double *y) const
int	zearev (double x, double y, struct prjprm *prj, double *phi, double *theta) const
int	airset (struct prjprm *prj)
int	airfwd (double phi, double theta, struct prjprm *prj, double *x, double *y) const
int	airrev (double x, double y, struct prjprm *prj, double *phi, double *theta) const
int	cypset (struct prjprm *prj)
int	cypfwd (double phi, double theta, struct prjprm *prj, double *x, double *y) const
int	cyprev (double x, double y, struct prjprm *prj, double *phi, double *theta) const
int	carset (struct prjprm *prj)
int	carfwd (double phi, double theta, struct prjprm *prj, double *x, double *y) const
int	carrev (double x, double y, struct prjprm *prj, double *phi, double *theta) const
int	merset (struct prjprm *prj)
int	merfwd (double phi, double theta, struct prjprm *prj, double *x, double *y) const
int	merrev (double x, double y, struct prjprm *prj, double *phi, double *theta) const
int	ceaset (struct prjprm *prj)
int	ceafwd (double phi, double theta, struct prjprm *prj, double *x, double *y) const
int	cearev (double x, double y, struct prjprm *prj, double *phi, double *theta) const
int	copset (struct prjprm *prj)
int	copfwd (double phi, double theta, struct prjprm *prj, double *x, double *y) const
int	coprev (double x, double y, struct prjprm *prj, double *phi, double *theta) const
int	codset (struct prjprm *prj)
int	codfwd (double phi, double theta, struct prjprm *prj, double *x, double *y) const
int	codrev (double x, double y, struct prjprm *prj, double *phi, double *theta) const
int	coeset (struct prjprm *prj)
int	coefwd (double phi, double theta, struct prjprm *prj, double *x, double *y) const
int	coerev (double x, double y, struct prjprm *prj, double *phi, double *theta) const
int	cooset (struct prjprm *prj)
int	coofwd (double phi, double theta, struct prjprm *prj, double *x, double *y) const
int	coorev (double x, double y, struct prjprm *prj, double *phi, double *theta) const
int	bonset (struct prjprm *prj)
int	bonfwd (double phi, double theta, struct prjprm *prj, double *x, double *y) const
int	bonrev (double x, double y, struct prjprm *prj, double *phi, double *theta) const
int	pcoset (struct prjprm *prj)
int	pcofwd (double phi, double theta, struct prjprm *prj, double *x, double *y) const
int	pcorev (double x, double y, struct prjprm *prj, double *phi, double *theta) const
int	glsset (struct prjprm *prj)
int	glsfwd (double phi, double theta, struct prjprm *prj, double *x, double *y) const
int	glsrev (double x, double y, struct prjprm *prj, double *phi, double *theta) const
int	parset (struct prjprm *prj)
int	parfwd (double phi, double theta, struct prjprm *prj, double *x, double *y) const
int	parrev (double x, double y, struct prjprm *prj, double *phi, double *theta) const
int	aitset (struct prjprm *prj)
int	aitfwd (double phi, double theta, struct prjprm *prj, double *x, double *y) const
int	aitrev (double x, double y, struct prjprm *prj, double *phi, double *theta) const
int	molset (struct prjprm *prj)
int	molfwd (double phi, double theta, struct prjprm *prj, double *x, double *y) const
int	molrev (double x, double y, struct prjprm *prj, double *phi, double *theta) const
int	cscset (struct prjprm *prj)
int	cscfwd (double phi, double theta, struct prjprm *prj, double *x, double *y) const
int	cscrev (double x, double y, struct prjprm *prj, double *phi, double *theta) const
int	qscset (struct prjprm *prj)
int	qscfwd (double phi, double theta, struct prjprm *prj, double *x, double *y) const
int	qscrev (double x, double y, struct prjprm *prj, double *phi, double *theta) const
int	tscset (struct prjprm *prj)
int	tscfwd (double phi, double theta, struct prjprm *prj, double *x, double *y) const
int	tscrev (double x, double y, struct prjprm *prj, double *phi, double *theta) const
int	tnxset (struct prjprm *prj)
int	tnxfwd (double phi, double theta, struct prjprm *prj, double *x, double *y) const
int	tnxrev (double x, double y, struct prjprm *prj, double *phi, double *theta) const
int	raw_to_pv (struct prjprm *prj, double x, double y, double *xo, double *yo)

Variables
const char *	prjset_errmsg []
const char *	prjfwd_errmsg []
const char *	prjrev_errmsg []

Macro Definition Documentation

wcs_copysign

#define wcs_copysign	(		X,
			Y
	)		((Y) < 0.0 ? -fabs(X) : fabs(X))

Function Documentation

airfwd()

int airfwd	(	double	phi,
		double	theta,
		struct prjprm *	prj,
		double *	x,
		double *	y
	)		const

airrev()

int airrev	(	double	x,
		double	y,
		struct prjprm *	prj,
		double *	phi,
		double *	theta
	)		const

airset()

int airset

(

struct prjprm *

prj

)

aitfwd()

int aitfwd	(	double	phi,
		double	theta,
		struct prjprm *	prj,
		double *	x,
		double *	y
	)		const

aitrev()

int aitrev	(	double	x,
		double	y,
		struct prjprm *	prj,
		double *	phi,
		double *	theta
	)		const

aitset()

int aitset

(

struct prjprm *

prj

)

arcfwd()

int arcfwd	(	double	phi,
		double	theta,
		struct prjprm *	prj,
		double *	x,
		double *	y
	)		const

arcrev()

int arcrev	(	double	x,
		double	y,
		struct prjprm *	prj,
		double *	phi,
		double *	theta
	)		const

arcset()

int arcset

(

struct prjprm *

prj

)

azpfwd()

int azpfwd	(	double	phi,
		double	theta,
		struct prjprm *	prj,
		double *	x,
		double *	y
	)		const

azprev()

int azprev	(	double	x,
		double	y,
		struct prjprm *	prj,
		double *	phi,
		double *	theta
	)		const

azpset()

int azpset

(

struct prjprm *

prj

)

bonfwd()

int bonfwd	(	double	phi,
		double	theta,
		struct prjprm *	prj,
		double *	x,
		double *	y
	)		const

bonrev()

int bonrev	(	double	x,
		double	y,
		struct prjprm *	prj,
		double *	phi,
		double *	theta
	)		const

bonset()

int bonset

(

struct prjprm *

prj

)

carfwd()

int carfwd	(	double	phi,
		double	theta,
		struct prjprm *	prj,
		double *	x,
		double *	y
	)		const

carrev()

int carrev	(	double	x,
		double	y,
		struct prjprm *	prj,
		double *	phi,
		double *	theta
	)		const

carset()

int carset

(

struct prjprm *

prj

)

ceafwd()

int ceafwd	(	double	phi,
		double	theta,
		struct prjprm *	prj,
		double *	x,
		double *	y
	)		const

cearev()

int cearev	(	double	x,
		double	y,
		struct prjprm *	prj,
		double *	phi,
		double *	theta
	)		const

ceaset()

int ceaset

(

struct prjprm *

prj

)

codfwd()

int codfwd	(	double	phi,
		double	theta,
		struct prjprm *	prj,
		double *	x,
		double *	y
	)		const

codrev()

int codrev	(	double	x,
		double	y,
		struct prjprm *	prj,
		double *	phi,
		double *	theta
	)		const

codset()

int codset

(

struct prjprm *

prj

)

coefwd()

int coefwd	(	double	phi,
		double	theta,
		struct prjprm *	prj,
		double *	x,
		double *	y
	)		const

coerev()

int coerev	(	double	x,
		double	y,
		struct prjprm *	prj,
		double *	phi,
		double *	theta
	)		const

coeset()

int coeset

(

struct prjprm *

prj

)

coofwd()

int coofwd	(	double	phi,
		double	theta,
		struct prjprm *	prj,
		double *	x,
		double *	y
	)		const

coorev()

int coorev	(	double	x,
		double	y,
		struct prjprm *	prj,
		double *	phi,
		double *	theta
	)		const

cooset()

int cooset

(

struct prjprm *

prj

)

copfwd()

int copfwd	(	double	phi,
		double	theta,
		struct prjprm *	prj,
		double *	x,
		double *	y
	)		const

coprev()

int coprev	(	double	x,
		double	y,
		struct prjprm *	prj,
		double *	phi,
		double *	theta
	)		const

copset()

int copset

(

struct prjprm *

prj

)

cscfwd()

int cscfwd	(	double	phi,
		double	theta,
		struct prjprm *	prj,
		double *	x,
		double *	y
	)		const

cscrev()

int cscrev	(	double	x,
		double	y,
		struct prjprm *	prj,
		double *	phi,
		double *	theta
	)		const

cscset()

int cscset

(

struct prjprm *

prj

)

cypfwd()

int cypfwd	(	double	phi,
		double	theta,
		struct prjprm *	prj,
		double *	x,
		double *	y
	)		const

cyprev()

int cyprev	(	double	x,
		double	y,
		struct prjprm *	prj,
		double *	phi,
		double *	theta
	)		const

cypset()

int cypset

(

struct prjprm *

prj

)

glsfwd()

int glsfwd	(	double	phi,
		double	theta,
		struct prjprm *	prj,
		double *	x,
		double *	y
	)		const

glsrev()

int glsrev	(	double	x,
		double	y,
		struct prjprm *	prj,
		double *	phi,
		double *	theta
	)		const

glsset()

int glsset

(

struct prjprm *

prj

)

merfwd()

int merfwd	(	double	phi,
		double	theta,
		struct prjprm *	prj,
		double *	x,
		double *	y
	)		const

merrev()

int merrev	(	double	x,
		double	y,
		struct prjprm *	prj,
		double *	phi,
		double *	theta
	)		const

merset()

int merset

(

struct prjprm *

prj

)

molfwd()

int molfwd	(	double	phi,
		double	theta,
		struct prjprm *	prj,
		double *	x,
		double *	y
	)		const

molrev()

int molrev	(	double	x,
		double	y,
		struct prjprm *	prj,
		double *	phi,
		double *	theta
	)		const

molset()

int molset

(

struct prjprm *

prj

)

parfwd()

int parfwd	(	double	phi,
		double	theta,
		struct prjprm *	prj,
		double *	x,
		double *	y
	)		const

parrev()

int parrev	(	double	x,
		double	y,
		struct prjprm *	prj,
		double *	phi,
		double *	theta
	)		const

parset()

int parset

(

struct prjprm *

prj

)

pcofwd()

int pcofwd	(	double	phi,
		double	theta,
		struct prjprm *	prj,
		double *	x,
		double *	y
	)		const

pcorev()

int pcorev	(	double	x,
		double	y,
		struct prjprm *	prj,
		double *	phi,
		double *	theta
	)		const

pcoset()

int pcoset

(

struct prjprm *

prj

)

qscfwd()

int qscfwd	(	double	phi,
		double	theta,
		struct prjprm *	prj,
		double *	x,
		double *	y
	)		const

qscrev()

int qscrev	(	double	x,
		double	y,
		struct prjprm *	prj,
		double *	phi,
		double *	theta
	)		const

qscset()

int qscset

(

struct prjprm *

prj

)

raw_to_pv()

int raw_to_pv	(	struct prjprm *	prj,
		double	x,
		double	y,
		double *	xo,
		double *	yo
	)

sinfwd()

int sinfwd	(	double	phi,
		double	theta,
		struct prjprm *	prj,
		double *	x,
		double *	y
	)		const

sinrev()

int sinrev	(	double	x,
		double	y,
		struct prjprm *	prj,
		double *	phi,
		double *	theta
	)		const

sinset()

int sinset

(

struct prjprm *

prj

)

stgfwd()

int stgfwd	(	double	phi,
		double	theta,
		struct prjprm *	prj,
		double *	x,
		double *	y
	)		const

stgrev()

int stgrev	(	double	x,
		double	y,
		struct prjprm *	prj,
		double *	phi,
		double *	theta
	)		const

stgset()

int stgset

(

struct prjprm *

prj

)

tanfwd()

int tanfwd	(	double	phi,
		double	theta,
		struct prjprm *	prj,
		double *	x,
		double *	y
	)		const

tanrev()

int tanrev	(	double	x,
		double	y,
		struct prjprm *	prj,
		double *	phi,
		double *	theta
	)		const

tanset()

int tanset

(

struct prjprm *

prj

)

tnxfwd()

int tnxfwd	(	double	phi,
		double	theta,
		struct prjprm *	prj,
		double *	x,
		double *	y
	)		const

tnxrev()

int tnxrev	(	double	x,
		double	y,
		struct prjprm *	prj,
		double *	phi,
		double *	theta
	)		const

tnxset()

int tnxset

(

struct prjprm *

prj

)

tscfwd()

int tscfwd	(	double	phi,
		double	theta,
		struct prjprm *	prj,
		double *	x,
		double *	y
	)		const

tscrev()

int tscrev	(	double	x,
		double	y,
		struct prjprm *	prj,
		double *	phi,
		double *	theta
	)		const

tscset()

int tscset

(

struct prjprm *

prj

)

zeafwd()

int zeafwd	(	double	phi,
		double	theta,
		struct prjprm *	prj,
		double *	x,
		double *	y
	)		const

zearev()

int zearev	(	double	x,
		double	y,
		struct prjprm *	prj,
		double *	phi,
		double *	theta
	)		const

zeaset()

int zeaset

(

struct prjprm *

prj

)

zpnfwd()

int zpnfwd	(	double	phi,
		double	theta,
		struct prjprm *	prj,
		double *	x,
		double *	y
	)		const

zpnrev()

int zpnrev	(	double	x,
		double	y,
		struct prjprm *	prj,
		double *	phi,
		double *	theta
	)		const

zpnset()

int zpnset

(

struct prjprm *

prj

)

Variable Documentation

prjfwd_errmsg

const char* prjfwd_errmsg[]

Initial value:

= {
   0,
   "Invalid projection parameters",
   "Invalid value of (phi,theta)"}

prjrev_errmsg

const char* prjrev_errmsg[]

Initial value:

= {
   0,
   "Invalid projection parameters",
   "Invalid value of (x,y)"}

prjset_errmsg

const char* prjset_errmsg[]

Initial value:

= {
   0,
   "Invalid projection parameters"}