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XEphem/libastro/dbfmt.c

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/* code to convert between .edb format and an Obj */
#include <stdio.h>
#include <ctype.h>
#include <math.h>
#include <stdlib.h>
#include <string.h>
#include "astro.h"
#include "preferences.h"
int get_fields (char *s, int delim, char *fields[]);
#define MAXDBLINE 512 /* longest allowed db line */
#define FLDSEP ',' /* major field separator */
#define SUBFLD '|' /* subfield separator */
#define MAXFLDS 20 /* must be more than on any expected line */
#define MAXESGOOD 100 /* max earth satellite good, days */
static char *enm (char *flds[MAXFLDS]);
static int crack_f (Obj *op, char *flds[MAXFLDS], int nf, char whynot[]);
static int crack_e (Obj *op, char *flds[MAXFLDS], int nf, char whynot[]);
static int crack_h (Obj *op, char *flds[MAXFLDS], int nf, char whynot[]);
static int crack_p (Obj *op, char *flds[MAXFLDS], int nf, char whynot[]);
static int crack_E (Obj *op, char *flds[MAXFLDS], int nf, char whynot[]);
static int crack_P (Obj *op, char *flds[MAXFLDS], int nf, char whynot[]);
static int crack_B (Obj *op, char *flds[MAXFLDS], int nf, char whynot[]);
static int crack_name (Obj *op, char *flds[MAXFLDS], int nf,
char nm[][MAXNM], int nnm);
static void crack_year (char *bp, double *p);
static void crack_okdates (char *fld, float *startok, float *endok);
static int get_okdates (char *lp, float *sp, float *ep);
static int tle_sum (char *l);
static double tle_fld (char *l, int from, int thru);
static double tle_expfld (char *l, int start);
static void write_f (Obj *op, char lp[]);
static void write_e (Obj *op, char lp[]);
static void write_h (Obj *op, char lp[]);
static void write_p (Obj *op, char lp[]);
static void write_E (Obj *op, char lp[]);
static void write_P (Obj *op, char lp[]);
static void write_B (Obj *op, char lp[]);
/* crack the given .edb database line into op.
* if ok
* return number of names in nm[], or 1 if nm == NULL
* else
* if whynot
* if not even a candidate
* set whynot[0] = '\0'
* else
* fill whynot with reason message.
* return -1
* only the first name is stored in op, all names (up to nnm) are in nm[], or
* ignored if nm == NULL.
*/
int
db_crack_line (char s[], Obj *op, char nm[][MAXNM], int nnm, char whynot[])
{
char copy[MAXDBLINE]; /* work copy; leave s untouched */
char *flds[MAXFLDS]; /* point to each field for easy reference */
int nf;
int i;
/* init no response */
if (whynot)
whynot[0] = '\0';
/* basic initial check */
if (dbline_candidate (s) < 0)
return (-1);
/* do all the parsing on a copy */
(void) strncpy (copy, s, MAXDBLINE-1);
copy[MAXDBLINE-1] = '\0';
i = strlen(copy);
if (copy[i-1] == '\n')
copy[i-1] = '\0';
/* parse into main fields */
nf = get_fields (copy, FLDSEP, flds);
/* need at least 2: name and type */
if (nf < 2) {
if (whynot)
sprintf (whynot, "Bogus: %s", s);
return (-1);
}
/* switch out on type of object - the second field */
switch (flds[1][0]) {
case 'f':
if (crack_f (op, flds, nf, whynot) < 0)
return (-1);
break;
case 'e':
if (crack_e (op, flds, nf, whynot) < 0)
return (-1);
break;
case 'h':
if (crack_h (op, flds, nf, whynot) < 0)
return (-1);
break;
case 'p':
if (crack_p (op, flds, nf, whynot) < 0)
return (-1);
break;
case 'B':
if (crack_B (op, flds, nf, whynot) < 0)
return (-1);
break;
case 'E':
if (crack_E (op, flds, nf, whynot) < 0)
return (-1);
break;
case 'P':
if (crack_P (op, flds, nf, whynot) < 0)
return (-1);
break;
default:
if (whynot)
sprintf (whynot, "%s: Unknown type %c for %s", enm(flds),
flds[1][0], flds[0]);
return (-1);
}
return (crack_name (op, flds, nf, nm, nnm));
}
/* write the given Obj in .edb format to lp[].
* we do _not_ include a trailing '\n'.
*/
void
db_write_line (Obj *op, char lp[])
{
switch (op->o_type) {
case FIXED:
write_f (op, lp);
break;
case BINARYSTAR:
write_B (op, lp);
break;
case ELLIPTICAL:
write_e (op, lp);
break;
case HYPERBOLIC:
write_h (op, lp);
break;
case PARABOLIC:
write_p (op, lp);
break;
case EARTHSAT:
write_E (op, lp);
break;
case PLANET:
write_P (op, lp);
break;
default:
printf ("Unknown type for %s: %d\n", op->o_name, op->o_type);
abort();
}
}
/* given 3 lines, first of which is name and next 2 are TLE, fill op.
* we skip leading whitespace on all lines.
* we do /not/ assume the 2 TLE lines are 0 terminated, but we do reach out into
* each as far as 69 chars.
* we detect nonconformance as efficiently as possible.
* name ends at first '\0', '\r' or '\n'.
* set startok/endok.
* if ok return 0 else return -1
*/
int
db_tle (char *name, char *l1, char *l2, Obj *op)
{
double ep;
int i;
/* check for correct line numbers, macthing satellite numbers and
* correct checksums.
*/
while (isspace(*l1))
l1++;
if (*l1 != '1')
return (-1);
while (isspace(*l2))
l2++;
if (*l2 != '2')
return (-1);
if (strncmp (l1+2, l2+2, 5))
return (-1);
if (tle_sum (l1) < 0)
return (-1);
if (tle_sum (l2) < 0)
return (-1);
/* assume it's ok from here out */
/* fresh */
zero_mem ((void *)op, sizeof(ObjES));
op->o_type = EARTHSAT;
/* name, sans leading and trailing whitespace */
while (isspace(*name))
name++;
i = strcspn (name, "\r\n");
while (i > 0 && name[i-1] == ' ')
--i;
if (i == 0)
return (-1);
if (i > MAXNM-1)
i = MAXNM-1;
sprintf (op->o_name, "%.*s", i, name);
/* goodies from "line 1" */
op->es_drag = (float) tle_expfld (l1, 54);
op->es_decay = (float) tle_fld (l1, 34, 43);
i = (int) tle_fld (l1, 19, 20);
if (i < 57)
i += 100;
cal_mjd (1, tle_fld(l1, 21, 32), i+1900, &ep);
op->es_epoch = ep;
/* goodies from "line 2" */
op->es_n = tle_fld (l2, 53, 63);
op->es_inc = (float)tle_fld (l2, 9, 16);
op->es_raan = (float)tle_fld (l2, 18, 25);
op->es_e = (float)(tle_fld (l2, 27, 33) * 1e-7);
op->es_ap = (float)tle_fld (l2, 35, 42);
op->es_M = (float)tle_fld (l2, 44, 51);
op->es_orbit = (int)tle_fld (l2, 64, 68);
/* limit date range to decay period that changes period by 1% but
* never more than MAXESGOOD.
* es_n is rev/day, es_decay is (rev/day)/day
*/
if (fabs(op->es_decay) > 0) {
double dt = 0.01*op->es_n/fabs(op->es_decay);
if (dt > MAXESGOOD)
dt = MAXESGOOD;
op->es_startok = op->es_epoch - dt;
op->es_endok = op->es_epoch + dt;
}
/* yes! */
return (0);
}
/* return 0 if op has no date range information or what it does have brackets
* now, else -1
*/
int
dateRangeOK (Now *np, Obj *op)
{
float *sp, *ep;
switch (op->o_type) {
case ELLIPTICAL:
sp = &op->e_startok;
ep = &op->e_endok;
break;
case HYPERBOLIC:
sp = &op->h_startok;
ep = &op->h_endok;
break;
case PARABOLIC:
sp = &op->p_startok;
ep = &op->p_endok;
break;
case EARTHSAT:
sp = &op->es_startok;
ep = &op->es_endok;
break;
default:
return (0);
}
if (*sp <= mjd && (!*ep || mjd <= *ep))
return (0);
return (-1);
}
/* given a null-terminated string, fill in fields[] with the starting addresses
* of each field delimited by delim or '\0'.
* N.B. each character matching delim is REPLACED BY '\0' IN PLACE.
* N.B. 0-length fields count, so even if *s=='\0' we return 1.
* return the number of fields.
*/
int
get_fields (char *s, int delim, char *fields[])
{
int n;
char c;
*fields = s;
n = 0;
do {
c = *s++;
if (c == delim || c == '\0') {
s[-1] = '\0';
*++fields = s;
n++;
}
} while (c);
return (n);
}
/* return 0 if buf qualifies as a database line worthy of a cracking
* attempt, else -1.
*/
int
dbline_candidate (char *buf)
{
char c = buf[0];
return (c == '#' || c == '!' || isspace(c) ? -1 : 0);
}
/* return 0 if TLE checksum is ok, else -1 */
static int
tle_sum (char *l)
{
char *lastl = l + 68;
int sum;
for (sum = 0; l < lastl; ) {
char c = *l++;
if (c == '\0')
return (-1);
if (isdigit(c))
sum += c - '0';
else if (c == '-')
sum++;
}
return (*l - '0' == (sum%10) ? 0 : -1);
}
/* extract the given columns and return value.
* N.B. from and to are 1-based within l
*/
static double
tle_fld (char *l, int from, int thru)
{
char buf[32];
sprintf (buf, "%.*s", thru-from+1, l+from-1);
return (atod (buf));
}
/* extract the exponential value starting at the given column.
* N.B. start is 1-based within l
*/
static double
tle_expfld (char *l, int start)
{
char buf[32];
double v;
sprintf (buf, ".%.*s", 5, l+start);
v = atod (buf) * pow (10.0, tle_fld(l, start+6, start+7));
if (l[start-1] == '-')
v = -v;
return (v);
}
static int
crack_f (Obj *op, char *flds[MAXFLDS], int nf, char whynot[])
{
char *sflds[MAXFLDS];
double tmp;
int nsf;
if (nf < 5 || nf > 7) {
if (whynot)
sprintf (whynot, "%s: type f needs 5-7 fields, not %d",
enm(flds),nf);
return (-1);
}
zero_mem ((void *)op, sizeof(ObjF));
op->o_type = FIXED;
nsf = get_fields(flds[1], SUBFLD, sflds);
if (nsf > 1) {
switch (sflds[1][0]) {
case 'A': case 'B': case 'C': case 'D': case 'F': case 'G':
case 'H': case 'K': case 'J': case 'L': case 'M': case 'N':
case 'O': case 'P': case 'Q': case 'R': case 'S': case 'T':
case 'U': case 'V': case 'Y':
op->f_class = sflds[1][0];
if (op->f_class == 'B')
op->f_class = 'D'; /* merge B and D since BINARYSTAR */
break;
default:
if (whynot)
sprintf (whynot, "%s: Bad f class: %c", enm(flds),
sflds[1][0]);
return (-1);
}
} else
op->f_class = 'T'; /* default to star-like */
if (nsf > 2) {
/* fill f_spect all the way */
char buf[sizeof(op->f_spect)+1];
memset (buf, 0, sizeof(buf));
sprintf (buf, "%.*s", (int)sizeof(op->f_spect), sflds[2]);
memcpy (op->f_spect, buf, (int)sizeof(op->f_spect));
}
nsf = get_fields(flds[2], SUBFLD, sflds);
f_scansexa (sflds[0], &tmp);
op->f_RA = (float) hrrad(tmp);
if (nsf > 1)
op->f_pmRA = (float) 1.327e-11*atod(sflds[1]);/*mas/yr->rad/dy*/
nsf = get_fields(flds[3], SUBFLD, sflds);
f_scansexa (sflds[0], &tmp);
op->f_dec = (float) degrad(tmp);
if (nsf > 1)
op->f_pmdec = (float)1.327e-11*atod(sflds[1]);/*mas/yr->rad/dy*/
if (fabs(op->f_dec) < PI/2)
op->f_pmRA /= cos (op->f_dec);
set_fmag (op, atod(flds[4]));
if (nf > 5 && flds[5][0]) {
tmp = op->f_epoch;
crack_year (flds[5], &tmp);
op->f_epoch = (float) tmp;
} else
op->f_epoch = J2000; /* default */
if (nf > 6) {
op->f_size = (float) atod(flds[6]);
/* optional minor axis and position angle subfields */
nsf = get_fields(flds[6], SUBFLD, sflds);
if (nsf == 3) {
set_ratio(op, op->s_size, atod(sflds[1]));
set_pa(op,degrad(atod(sflds[2])));
} else {
set_ratio(op,1,1); /* round */
set_pa(op,0.0);
}
}
return (0);
}
static int
crack_e (Obj *op, char *flds[MAXFLDS], int nf, char whynot[])
{
if (nf != 13 && nf != 14) {
if (whynot)
sprintf (whynot, "%s: type e needs 13 or 14 fields, not %d",
enm(flds), nf);
return (-1);
}
zero_mem ((void *)op, sizeof(ObjE));
op->o_type = ELLIPTICAL;
op->e_inc = (float) atod (flds[2]);
op->e_Om = (float) atod (flds[3]);
op->e_om = (float) atod (flds[4]);
op->e_a = (float) atod (flds[5]);
/* retired op->e_n = (float) atod (flds[6]); */
op->e_e = atod (flds[7]);
op->e_M = (float) atod (flds[8]);
crack_year (flds[9], &op->e_cepoch);
crack_okdates (flds[9], &op->e_startok, &op->e_endok);
crack_year (flds[10], &op->e_epoch);
/* magnitude model gk or HG(default). allow prefixes in either field */
op->e_mag.whichm = flds[11][0] == 'g' ? MAG_gk : MAG_HG;
if (isdigit(flds[11][0]))
op->e_mag.m1 = (float) atod(&flds[11][0]);
else
op->e_mag.m1 = (float) atod(&flds[11][1]);
if (isdigit(flds[12][0]))
op->e_mag.m2 = (float) atod(&flds[12][0]);
else
op->e_mag.m2 = (float) atod(&flds[12][1]);
if (nf == 14)
op->e_size = (float) atod (flds[13]);
return (0);
}
static int
crack_h (Obj *op, char *flds[MAXFLDS], int nf, char whynot[])
{
if (nf != 11 && nf != 12) {
if (whynot)
sprintf (whynot, "%s: type h needs 11 or 12 fields, not %d",
enm(flds), nf);
return (-1);
}
zero_mem ((void *)op, sizeof(ObjH));
op->o_type = HYPERBOLIC;
crack_year (flds[2], &op->h_ep);
crack_okdates (flds[2], &op->h_startok, &op->h_endok);
op->h_inc = (float) atod (flds[3]);
op->h_Om = (float) atod (flds[4]);
op->h_om = (float) atod (flds[5]);
op->h_e = (float) atod (flds[6]);
op->h_qp = (float) atod (flds[7]);
crack_year (flds[8], &op->h_epoch);
op->h_g = (float) atod (flds[9]);
op->h_k = (float) atod (flds[10]);
if (nf == 12)
op->h_size = (float) atod (flds[11]);
return (0);
}
static int
crack_p (Obj *op, char *flds[MAXFLDS], int nf, char whynot[])
{
if (nf != 10 && nf != 11) {
if (whynot)
sprintf (whynot, "%s: type p needs 10 or 11 fields, not %d",
enm(flds), nf);
return (-1);
}
zero_mem ((void *)op, sizeof(ObjP));
op->o_type = PARABOLIC;
crack_year (flds[2], &op->p_ep);
crack_okdates (flds[2], &op->p_startok, &op->p_endok);
op->p_inc = (float) atod (flds[3]);
op->p_om = (float) atod (flds[4]);
op->p_qp = (float) atod (flds[5]);
op->p_Om = (float) atod (flds[6]);
crack_year (flds[7], &op->p_epoch);
op->p_g = (float) atod (flds[8]);
op->p_k = (float) atod (flds[9]);
if (nf == 11)
op->p_size = (float) atod (flds[10]);
return (0);
}
static int
crack_E (Obj *op, char *flds[MAXFLDS], int nf, char whynot[])
{
if (nf != 11 && nf != 12) {
if (whynot)
sprintf (whynot, "%s: type E needs 11 or 12 fields, not %d",
enm(flds), nf);
return (-1);
}
zero_mem ((void *)op, sizeof(ObjES));
op->o_type = EARTHSAT;
crack_year (flds[2], &op->es_epoch);
crack_okdates (flds[2], &op->es_startok, &op->es_endok);
op->es_inc = (float) atod (flds[3]);
op->es_raan = (float) atod (flds[4]);
op->es_e = (float) atod (flds[5]);
op->es_ap = (float) atod (flds[6]);
op->es_M = (float) atod (flds[7]);
op->es_n = atod (flds[8]);
op->es_decay = (float) atod (flds[9]);
op->es_orbit = atoi (flds[10]);
if (nf == 12)
op->es_drag = (float) atod (flds[11]);
/* if not already specified, limit date range to decay period that
* changes period by 1% but never longer than MAXESGOOD.
* es_n is rev/day, es_decay is (rev/day)/day
*/
if (op->es_startok == 0 && op->es_endok == 0 && fabs(op->es_decay) > 0){
double dt = 0.01*op->es_n/fabs(op->es_decay);
if (dt > MAXESGOOD)
dt = MAXESGOOD;
op->es_startok = op->es_epoch - dt;
op->es_endok = op->es_epoch + dt;
}
return (0);
}
static int
crack_P (Obj *op, char *flds[MAXFLDS], int nf, char whynot[])
{
Obj *bi;
int nbi;
int i;
nbi = getBuiltInObjs (&bi);
for (i = 0; i < nbi; i++) {
Obj *bop = bi + i;
if (is_type(bop,PLANETM) && !strcmp (flds[0], bop->o_name)) {
memcpy ((void *)op, bop, sizeof(ObjPl));
return (0);
}
}
if (whynot)
sprintf (whynot, "%s: Unknown planet or moon", enm(flds));
return (-1);
}
static int
crack_B (Obj *op, char *flds[MAXFLDS], int nf, char whynot[])
{
char *sflds[MAXFLDS];
double tmp;
int nsf;
if (nf != 7) {
if (whynot)
sprintf (whynot, "%s: B need 7 fields, not %d", enm(flds), nf);
return (-1);
}
zero_mem ((void *)op, sizeof(ObjB));
op->o_type = BINARYSTAR;
nsf = get_fields(flds[1], SUBFLD, sflds);
if (nsf > 1) {
switch (sflds[1][0]) {
case 'a': case 'c': case 'e': case 'x': case 'y': case 'o':
case 's': case 't': case 'u': case 'v': case 'b': case 'd':
case 'q': case 'r': case 'p': case 'U': case 'V': case 'Y':
op->f_class = sflds[1][0];
break;
default:
if (whynot)
sprintf (whynot, "%s: Bad B class: %c", enm(flds),
sflds[1][0]);
return (-1);
}
}
if (nsf > 2) {
/* fill f_spect all the way */
char buf[sizeof(op->f_spect)+1];
memset (buf, 0, sizeof(buf));
sprintf (buf, "%.*s", (int)sizeof(op->f_spect), sflds[2]);
memcpy (op->f_spect, buf, (int)sizeof(op->f_spect));
}
if (nsf > 3) {
/* fill b_2spect all the way */
char buf[sizeof(op->b_2spect)+1];
memset (buf, 0, sizeof(buf));
sprintf (buf, "%.*s", (int)sizeof(op->b_2spect), sflds[3]);
memcpy (op->b_2spect, buf, (int)sizeof(op->b_2spect));
}
nsf = get_fields(flds[2], SUBFLD, sflds);
f_scansexa (sflds[0], &tmp);
op->f_RA = (float) hrrad(tmp);
if (nsf > 1)
op->f_pmRA = (float) 1.327e-11*atod(sflds[1]);/*mas/yr->rad/dy*/
nsf = get_fields(flds[3], SUBFLD, sflds);
f_scansexa (sflds[0], &tmp);
op->f_dec = (float) degrad(tmp);
if (nsf > 1)
op->f_pmdec = (float)1.327e-11*atod(sflds[1]);/*mas/yr->rad/dy*/
if (fabs(op->f_dec) < PI/2)
op->f_pmRA /= cos (op->f_dec);
nsf = get_fields(flds[4], SUBFLD, sflds);
if (nsf > 0)
set_fmag (op, atod(sflds[0]));
if (nsf > 1)
op->b_2mag = (short)floor((atod(sflds[1]))*MAGSCALE + 0.5);
if (flds[5][0]) {
tmp = op->f_epoch;
crack_year (flds[5], &tmp);
op->f_epoch = (float) tmp;
} else
op->f_epoch = J2000; /* default */
nsf = get_fields(flds[6], SUBFLD, sflds);
if (nsf == 7) {
int l;
char c;
op->b_bo.bo_a = atod(sflds[0]);
op->b_bo.bo_i = atod(sflds[1]);
op->b_bo.bo_O = atod(sflds[2]);
op->b_bo.bo_e = atod(sflds[3]);
op->b_bo.bo_T = atod(sflds[4]);
op->b_bo.bo_o = atod(sflds[5]);
op->b_bo.bo_P = atod(sflds[6]);
/* reject some weird entries actually seen in real lists */
if (op->b_bo.bo_a <= 0) {
if (whynot)
sprintf (whynot, "%s: Bogus B semi major axis: %g",
enm(flds), op->b_bo.bo_a);
return (-1);
}
if (op->b_bo.bo_P <= 0) {
if (whynot)
sprintf (whynot, "%s: Bogus B period: %g", enm(flds),
op->b_bo.bo_P);
return (-1);
}
/* scale period */
l = strlen (sflds[6]);
c = sflds[6][l-1];
switch (c) {
case 'y': case 'Y':
break;
case 'h': case 'H':
op->b_bo.bo_P /= (24.0*365.25);
break;
case 'd': case 'D':
op->b_bo.bo_P /= 365.25;
break;
default:
if (c != ' ' && !isdigit(c)) {
if (whynot)
sprintf (whynot,"%s: B period suffix not Y, D or H: %c",
enm(flds), c);
return (-1);
}
}
} else if (nsf==3 || nsf==6 || nsf==9) {
double yr;
int i;
op->b_nbp = nsf/3;
for (i = 0; i < nsf; i += 3) {
tmp = 0;
crack_year (sflds[i+0], &tmp);
mjd_year (tmp, &yr);
op->b_bp[i/3].bp_ep = (float)yr;
op->b_bp[i/3].bp_sep = atod(sflds[i+1]);
op->b_bp[i/3].bp_pa = degrad(atod(sflds[i+2]));
}
} else {
if (whynot)
sprintf (whynot,
"%s: type B needs 3,6 or 7 subfields in field 7, not %d",
enm(flds), nsf);
return (-1);
}
return (0);
}
/* put all names in nm but load only the first into o_name */
static int
crack_name (Obj *op, char *flds[MAXFLDS], int nf, char nm[][MAXNM], int nnm)
{
char *sflds[MAXFLDS];
int nsf;
int i;
nsf = get_fields (flds[0], SUBFLD, sflds);
for (i = 0; nm && i < nsf && i < nnm; i++) {
strncpy (nm[i], sflds[i], MAXNM);
nm[i][MAXNM-1] = '\0';
}
strncpy (op->o_name, sflds[0], MAXNM-1);
return (nsf);
}
/* simple name cracker just for error messages */
static char *
enm (char *flds[MAXFLDS])
{
char *sflds[MAXFLDS];
int nsf = get_fields (flds[0], SUBFLD, sflds);
return (nsf > 0 ? sflds[0] : "Unknown");
}
/* given either a decimal year (xxxx[.xxx]) or a calendar (x/x/x) date
* convert it to an mjd and store it at *p.
*/
static void
crack_year (char *bp, double *p)
{
int m, y;
double d;
mjd_cal (*p, &m, &d, &y); /* init with current */
f_sscandate (bp, PREF_MDY, &m, &d, &y);
cal_mjd (m, d, y, p);
}
/* crack the startok and endok date fields found in several Obj types.
* set to 0 if blank or any problems.
*/
static void
crack_okdates (char *fld, float *startok, float *endok)
{
char *sflds[MAXFLDS];
double tmp;
int m, y;
double d;
int nsf;
*startok = *endok = 0;
nsf = get_fields(fld, SUBFLD, sflds);
if (nsf > 1) {
d = m = y = 0;
f_sscandate (sflds[1], PREF_MDY, &m, &d, &y);
cal_mjd (m, d, y, &tmp);
*startok = (float)tmp;
if (nsf > 2) {
d = m = y = 0;
f_sscandate (sflds[2], PREF_MDY, &m, &d, &y);
cal_mjd (m, d, y, &tmp);
*endok = (float)tmp;
}
}
}
/* add startok and endok to string at lp if non-zero.
* return number of characters added.
*/
static int
get_okdates (char *lp, float *sp, float *ep)
{
char *lp0 = lp;
if (*sp || *ep) {
*lp++ = '|';
if (*sp)
lp += fs_date (lp, PREF_MDY, *sp);
if (*ep) {
*lp++ = '|';
lp += fs_date (lp, PREF_MDY, *ep);
}
}
return (lp - lp0);
}
static void
write_f (Obj *op, char lp[])
{
double tmp;
lp += sprintf (lp, "%s,f", op->o_name);
if (op->f_class)
lp += sprintf (lp, "|%c", op->f_class);
if (op->f_spect[0])
lp += sprintf (lp, "|%.*s", (int)sizeof(op->f_spect), op->f_spect);
*lp++ = ',';
lp += fs_sexa (lp, radhr(op->f_RA), 2, 36000);
if (op->f_pmRA)
lp += sprintf (lp, "|%.6g",cos(op->f_dec)*op->f_pmRA/1.327e-11);
*lp++ = ',';
lp += fs_sexa (lp, raddeg(op->f_dec), 3, 3600);
if (op->f_pmdec)
lp += sprintf (lp, "|%.6g", op->f_pmdec/1.327e-11);
lp += sprintf (lp, ",%.2f", get_mag(op));
mjd_year (op->f_epoch, &tmp);
lp += sprintf (lp, ",%.6g", tmp); /* %.7g gives 2000.001 */
lp += sprintf (lp, ",%.7g", op->f_size);
if (op->f_size && (op->f_ratio || op->f_pa))
lp += sprintf (lp,"|%g|%g", op->f_size*get_ratio(op),
raddeg(get_pa(op)));
}
static void
write_e (Obj *op, char lp[])
{
lp += sprintf (lp, "%s,e", op->o_name);
lp += sprintf (lp, ",%.7g", op->e_inc);
lp += sprintf (lp, ",%.7g", op->e_Om);
lp += sprintf (lp, ",%.7g", op->e_om);
lp += sprintf (lp, ",%.7g", op->e_a);
lp += sprintf (lp, ",%.7g", 0.0); /* retired op->e_n */
lp += sprintf (lp, ",%.7g", op->e_e);
lp += sprintf (lp, ",%.7g", op->e_M);
*lp++ = ',';
lp += fs_date (lp, PREF_MDY, op->e_cepoch);
lp += get_okdates (lp, &op->e_startok, &op->e_endok);
*lp++ = ',';
lp += fs_date (lp, PREF_MDY, op->e_epoch);
if (op->e_mag.whichm == MAG_gk)
lp += sprintf (lp, ",g%.7g", op->e_mag.m1);
else if (op->e_mag.whichm == MAG_HG)
lp += sprintf (lp, ",H%.7g", op->e_mag.m1);
else
lp += sprintf (lp, ",%.7g", op->e_mag.m1);
lp += sprintf (lp, ",%.7g", op->e_mag.m2);
lp += sprintf (lp, ",%.7g", op->e_size);
}
static void
write_h (Obj *op, char lp[])
{
lp += sprintf (lp, "%s,h", op->o_name);
*lp++ = ',';
lp += fs_date (lp, PREF_MDY, op->h_ep);
lp += get_okdates (lp, &op->h_startok, &op->h_endok);
lp += sprintf (lp, ",%.7g", op->h_inc);
lp += sprintf (lp, ",%.7g", op->h_Om);
lp += sprintf (lp, ",%.7g", op->h_om);
lp += sprintf (lp, ",%.7g", op->h_e);
lp += sprintf (lp, ",%.7g", op->h_qp);
*lp++ = ',';
lp += fs_date (lp, PREF_MDY, op->h_epoch);
lp += sprintf (lp, ",%.7g", op->h_g);
lp += sprintf (lp, ",%.7g", op->h_k);
lp += sprintf (lp, ",%.7g", op->h_size);
}
static void
write_p (Obj *op, char lp[])
{
lp += sprintf (lp, "%s,p", op->o_name);
*lp++ = ',';
lp += fs_date (lp, PREF_MDY, op->p_ep);
lp += get_okdates (lp, &op->p_startok, &op->p_endok);
lp += sprintf (lp, ",%.7g", op->p_inc);
lp += sprintf (lp, ",%.7g", op->p_om);
lp += sprintf (lp, ",%.7g", op->p_qp);
lp += sprintf (lp, ",%.7g", op->p_Om);
*lp++ = ',';
lp += fs_date (lp, PREF_MDY, op->p_epoch);
lp += sprintf (lp, ",%.7g", op->p_g);
lp += sprintf (lp, ",%.7g", op->p_k);
lp += sprintf (lp, ",%.7g", op->p_size);
}
static void
write_E (Obj *op, char lp[])
{
double d;
int m, y;
lp += sprintf (lp, "%s,E", op->o_name);
*lp++ = ',';
mjd_cal (op->es_epoch, &m, &d, &y); /* need more day prec than fs_date*/
lp += sprintf (lp, "%d/%.12g/%d", m, d, y);
lp += get_okdates (lp, &op->es_startok, &op->es_endok);
lp += sprintf (lp, ",%.8g", op->es_inc);
lp += sprintf (lp, ",%.8g", op->es_raan);
lp += sprintf (lp, ",%.8g", op->es_e);
lp += sprintf (lp, ",%.8g", op->es_ap);
lp += sprintf (lp, ",%.8g", op->es_M);
lp += sprintf (lp, ",%.12g", op->es_n); /* double */
lp += sprintf (lp, ",%.8g", op->es_decay);
lp += sprintf (lp, ",%d", op->es_orbit);
lp += sprintf (lp, ",%.8g", op->es_drag);
}
static void
write_B (Obj *op, char lp[])
{
double tmp;
lp += sprintf (lp, "%s,B", op->o_name);
if (op->f_class)
lp += sprintf (lp, "|%c", op->f_class);
if (op->f_spect[0])
lp += sprintf (lp, "|%.*s", (int)sizeof(op->f_spect), op->f_spect);
if (op->b_2spect[0])
lp += sprintf (lp, "|%.*s", (int)sizeof(op->b_2spect),op->b_2spect);
*lp++ = ',';
lp += fs_sexa (lp, radhr(op->f_RA), 2, 36000);
if (op->f_pmRA)
lp += sprintf (lp, "|%.6g",cos(op->f_dec)*op->f_pmRA/1.327e-11);
*lp++ = ',';
lp += fs_sexa (lp, raddeg(op->f_dec), 3, 3600);
if (op->f_pmdec)
lp += sprintf (lp, "|%.6g", op->f_pmdec/1.327e-11);
lp += sprintf (lp, ",%.2f", get_mag(op));
lp += sprintf (lp, "|%.2f", op->b_2mag/MAGSCALE);
mjd_year (op->f_epoch, &tmp);
lp += sprintf (lp, ",%.6g", tmp); /* %.7g gives 2000.001 */
if (op->b_nbp == 0) {
lp += sprintf (lp, ",%.6g", op->b_bo.bo_a);
lp += sprintf (lp, "|%.6g", op->b_bo.bo_i);
lp += sprintf (lp, "|%.6g", op->b_bo.bo_O);
lp += sprintf (lp, "|%.6g", op->b_bo.bo_e);
lp += sprintf (lp, "|%.6g", op->b_bo.bo_T);
lp += sprintf (lp, "|%.6g", op->b_bo.bo_o);
lp += sprintf (lp, "|%.6gy", op->b_bo.bo_P);
} else {
int i;
for (i = 0; i < op->b_nbp; i++) {
BinPos *bp = &op->b_bp[i];
lp += sprintf (lp, "%c%.6g", i==0?',':'|', bp->bp_ep);
lp += sprintf (lp, "|%.6g", bp->bp_sep);
lp += sprintf (lp, "|%.6g", raddeg(bp->bp_pa));
}
}
}
static void
write_P (Obj *op, char lp[])
{
lp += sprintf (lp, "%s,P", op->o_name);
}
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