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telescope is moving; need to add some more commands & write FITS-header

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This commit is contained in:
Edward Emelianov
2026-09-24 17:51:41 +03:00
parent eb40fec59a
commit 8e796ce419
13 changed files with 553 additions and 183 deletions
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74
Daemons/10micron_stellarium/angles.c
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@@ -84,25 +84,37 @@ void getPlaceData(placeData_t *pd){
}
/**
* convert RA/DEC to string in forman RA: HH:MM:SS.SS, DEC: DD:MM:SS.S
* @brief ra2str - convert RA to string form "HH:MM:SS.SS"
* @param ra - RA (hours)
* @param buf - output buffer
* @return pointer to buffer
*/
char *radec2str(double ra, double dec, char buf[RADEC_STR_MAXLEN]){
char *ra2str(double ra, char buf[RADEC_STR_MAXLEN]){
int h = (int)ra;
ra -= h; ra *= 60.;
int m = (int)ra;
ra -= m; ra *= 60.;
snprintf(buf, RADEC_STR_MAXLEN, "%d:%d:%.2f", h,m,ra);
buf[RADEC_STR_MAXLEN-1] = 0;
return buf;
}
/**
* @brief dec2str - convert Dec to string form "DD:MM:SS.S"
* @param dec - Dec (degrees)
* @param buf - output buffer
* @return pointer to buffer
*/
char *dec2str(double dec, char buf[RADEC_STR_MAXLEN]){
char sign = '+';
if(dec < 0){
sign = '-';
dec = -dec;
}
int h = (int)ra;
ra -= h; ra *= 60.;
int m = (int)ra;
ra -= m; ra *= 60.;
int d = (int) dec;
dec -= d; dec *= 60.;
int dm = (int)dec;
dec -= dm; dec *= 60.;
snprintf(buf, RADEC_STR_MAXLEN, "%d:%d:%.2f %c%d:%d:%.1f", h,m,ra, sign,d,dm,dec);
snprintf(buf, RADEC_STR_MAXLEN, "%c%d:%d:%.1f",sign,d,dm,dec);
buf[RADEC_STR_MAXLEN-1] = 0;
return buf;
}
@@ -156,8 +168,10 @@ void norm_RADEC(double *ra, double *dec){
void norm_RADECr(double *ra, double *dec){
if(!ra || !dec) return;
DBG("Ra: %g, Dec: %g", RAD2DEG(*ra), RAD2DEG(*dec));
if(*dec >= -ERFA_DPI/2. && *dec <= ERFA_DPI/2.){ // need only check RA
*ra = eraAnp(*ra);
DBG("Ra become %g", RAD2DEG(*ra));
return;
}
// 1: convert to (-pi..+pi)
@@ -170,6 +184,7 @@ void norm_RADECr(double *ra, double *dec){
*dec = -ERFA_DPI - *dec;
*ra = eraAnp(*ra + ERFA_DPI);
}
DBG("Ra become %g, dec become %g", RAD2DEG(*ra), RAD2DEG(*dec));
}
// normalize angle to (-180, 180]
@@ -249,6 +264,39 @@ void r2sDMS(double radians, char *dms, int len){
eraA2af(1, radians, &pm, i);
snprintf(dms, len, "'%c%02d:%02d:%02d.%d'", pm, i[0],i[1],i[2],i[3]);
}
// the same, but argument in degrees
void d2sDMS(double degrees, char *dms, int len){
double radians = DEG2RAD(degrees);
return r2sDMS(radians, dms, len);
}
/**
* convert str into coordinate (degrees/hours)
* @param str (i) - string with angle
* @param val (o) - output angle value
* @return true if all OK
*/
bool str2coord(const char *str, double *val){
if(!str || !val) return false;
int d, m;
float s;
int sign = 1;
if(*str == '+') ++str;
else if(*str == '-'){
sign = -1;
++str;
}
int n = sscanf(str, "%d:%d:%f#", &d, &m, &s);
if(n != 3){
DBG("sscanf('%s')=%d", str, 3);
return false;
}
double ang = d + ((double)m)/60. + s/3600.;
if(sign == -1) *val = -ang;
else *val = ang;
return true;
}
/**
* @brief get_MJDt - calculate MJD of date from argument
@@ -287,11 +335,11 @@ bool get_MJDt(struct timeval *tval, sMJD_t *MJD){
WARNX("get_MJDt(): eraDtf2d() error");
return false;
}
DBG("y=%d, m=%d, d=%d, H=%d, M=%d, seconds=%g, UTC=%g", y, m, d, tms.tm_hour, tms.tm_min, tSeconds, utc1+utc2);
//DBG("y=%d, m=%d, d=%d, H=%d, M=%d, seconds=%g, UTC=%g", y, m, d, tms.tm_hour, tms.tm_min, tSeconds, utc1+utc2);
MJD->MJD = (utc1 - ERFA_DJM0) + utc2;
MJD->utc1 = utc1;
MJD->utc2 = utc2;
DBG("MJD: %g, %.8f", utc1 - ERFA_DJM0, utc2);
//DBG("MJD: %g, %.8f", utc1 - ERFA_DJM0, utc2);
if(eraUtctai(utc1, utc2, &MJD->tai1, &MJD->tai2)){
WARNX("get_MJDt(): eraUtctai() error");
return false;
@@ -322,8 +370,8 @@ bool get_LST(sMJD_t *mjd, double *LST){
}else Mjd = *mjd;
if(eraUtcut1(Mjd.utc1, Mjd.utc2, AlmDut.DUT1, &ut11, &ut12)) return false;
double ST = eraGst06a(ut11, ut12, Mjd.tt1, Mjd.tt2);
DBG("ST0=%gh; longitude=%gh (%gdeg) STl=%gh", RAD2HRS(ST),
RAD2HRS(place.slong), RAD2DEG(place.slong), RAD2HRS(ST+place.slong));
//DBG("ST0=%gh; longitude=%gh (%gdeg) STl=%gh", RAD2HRS(ST),
// RAD2HRS(place.slong), RAD2DEG(place.slong), RAD2HRS(ST+place.slong));
ST += place.slong;
if(ST > ERFA_D2PI) ST -= ERFA_D2PI;
else if(ST < 0.) ST += ERFA_D2PI;