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elem_ou2.cpp
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/
elem_ou2.cpp
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/* elem_ou2.cpp: formatting elements into SOF (Standard Orbit Format)
Copyright (C) 2016, Project Pluto
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301, USA. */
#include <math.h>
#include <time.h>
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <assert.h>
#include <sys/types.h>
#include <sys/stat.h>
#include "watdefs.h"
#include "comets.h"
#include "afuncs.h"
#include "mpc_obs.h"
#include "monte0.h" /* for put_double_in_buff() proto */
#include "date.h"
/* MSVC/C++ lacks snprintf. See 'ephem0.cpp' for details. */
#if defined(_MSC_VER) && _MSC_VER < 1900
int snprintf( char *string, const size_t max_len, const char *format, ...);
#endif
int put_elements_into_sof( char *obuff, const char *templat,
const ELEMENTS *elem, const double *nongravs,
const int n_obs, const OBSERVE *obs); /* elem_ou2.cpp */
const double PI = 3.1415926535897932384626433832795028841971693993751058209749445923;
int put_elements_into_sof( char *obuff, const char *templat,
const ELEMENTS *elem, const double *nongravs,
const int n_obs, const OBSERVE *obs)
{
int rval = 0;
while( *templat >= ' ')
{
size_t i = 0;
int j;
double val_to_put = 0.;
double date_to_put = 0.;
double angle_to_put = 0.;
int integer_to_put = 0;
const char *text_to_put = NULL;
bool right_justify = true;
char tbuff[80];
while( templat[i] >= ' ' && templat[i] != '|')
i++;
if( *templat == 'N') /* store name w/o leading spaces */
{
text_to_put = tbuff;
j = 0;
while( obs->packed_id[j] == ' ')
j++;
strcpy( tbuff, obs->packed_id + j);
right_justify = false;
}
else if( *templat == 'n' && templat[1] == '_')
{
switch( templat[2])
{
case 'o': /* n_obs: total observations, minus duplicates */
for( j = 0; j < n_obs; j++)
if( !(obs[j].flags & OBS_DONT_USE))
integer_to_put++;
break;
case 'u': /* n_used: number actually in the orbit fit */
for( j = 0; j < n_obs; j++)
if( !(obs[j].flags & OBS_DONT_USE) && obs[j].is_included)
integer_to_put++;
break;
}
}
else if( templat[1] == ' ') /* single-char specifier */
switch( *templat)
{
case 'q':
val_to_put = elem->q;
break;
case 'a':
val_to_put = elem->major_axis;
break;
case 'Q':
val_to_put = 2. * elem->major_axis - elem->q;
break;
case 'e':
val_to_put = elem->ecc;
break;
case 'H':
val_to_put = elem->abs_mag;
break;
case 'G':
val_to_put = elem->slope_param;
break;
case 'i':
angle_to_put = elem->incl;
break;
case 'C':
integer_to_put = elem->central_obj;
default:
break;
}
else if( *templat == 'T')
switch( templat[1])
{
case 'p':
date_to_put = elem->perih_time;
break;
case 'e':
date_to_put = elem->epoch;
break;
case 'f': /* Tfirst */
case 'l': /* Tlast */
for( j = 0; j < n_obs; j++)
if( !(obs[j].flags & OBS_DONT_USE) && obs[j].is_included)
{
date_to_put = obs[j].jd;
if( templat[1] == 'f') /* stop on first valid obs */
j = n_obs;
}
break;
case 'w': /* Twritten */
{
const double jd_1970 = 2440587.5;
date_to_put = jd_1970 + (double)time( NULL) / seconds_per_day;
}
break;
default:
break;
}
else if( templat[0] == 'M' && (templat[1] == 'T' || templat[1] == 'N'))
{
extern double comet_total_magnitude, comet_nuclear_magnitude;
val_to_put = (templat[1] == 'T' ?
comet_total_magnitude : comet_nuclear_magnitude);
}
else if( templat[0] == 'r')
val_to_put = compute_rms( obs, n_obs);
else if( templat[0] == 'M' && templat[1] == 'A')
angle_to_put = elem->mean_anomaly;
else if( templat[0] == 'O' && templat[1] == 'm')
angle_to_put = elem->asc_node;
else if( templat[0] == 'o' && templat[1] == 'm')
angle_to_put = elem->arg_per;
else if( templat[0] == 'A' && templat[1] >= '1' && templat[1] <= '3')
text_to_put = put_double_in_buff( tbuff,
nongravs[templat[1] - '1']);
else /* couldn't puzzle out what value we're storing; */
rval++; /* increment the error count */
if( angle_to_put)
{
val_to_put = fmod( angle_to_put * 180. / PI, 360.);
if( val_to_put < 0.)
val_to_put += 360.;
}
if( date_to_put)
{
text_to_put = tbuff;
full_ctime( tbuff, date_to_put, FULL_CTIME_YMD
| FULL_CTIME_LEADING_ZEROES
| FULL_CTIME_NO_SPACES | FULL_CTIME_FORMAT_DAY
| FULL_CTIME_11_PLACES | FULL_CTIME_MONTHS_AS_DIGITS);
}
if( text_to_put)
snprintf( obuff, i + 1,
(right_justify ? "%*s" : "%-*s"), (int)i, text_to_put);
else if( val_to_put)
{
size_t j = 1;
while( j < i && templat[j] != '.')
j++;
if( j == i) /* no decimal point found */
j = 0;
snprintf( obuff, i + 1, "%*.*f", (int)i, (int)(i - j) - 1, val_to_put);
}
else if( integer_to_put)
snprintf( obuff, i + 1, "%*d", (int)i, integer_to_put);
else
memset( obuff, ' ', i);
templat += i;
obuff += i;
if( *templat == '|') /* more fields */
{
templat++;
*obuff++ = ' ';
}
}
strcpy( obuff, templat); /* CR/LF or LF */
return( rval); /* indicates number of failed fields */
}