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Comment and code cleanups.

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This commit is contained in:
Dianne Skoll
2025-03-19 18:08:28 -04:00
parent abb8cbb1bf
commit deda94a69e
1 changed files with 9 additions and 6 deletions
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15
src/moon.c
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@@ -525,7 +525,7 @@ void HuntPhase(int startdate, int starttim, int phas, int *date, int *time)
/* Convert from Remind representation to year/mon/day */
FromDSE(utcd, &y, &m, &d);
/* Convert to a true Julian date */
jdorig = jtime(y, m, d, (utct / 60), (utct % 60), 0);
jdorig = jtime(y, m, d, (utct / 60), (utct % 60), 0);
jd = jdorig - 45.0;
nt1 = meanphase(jd, 0.0, &k1);
while(1) {
@@ -563,10 +563,11 @@ void HuntPhase(int startdate, int starttim, int phas, int *date, int *time)
Redistributions of this source code must retain this copyright notice.
*/
/* How many hours to search for moonrise / moonset on either side of
starting point */
/* How many hours to search for moonrise / moonset? We search
half a window on either side of the starting point */
#define MR_WINDOW 48
/* K1 tide cycle is 1.0027379 cycles per solar day */
#define K1 15*(PI/180)*1.0027379
#define remainder(x, y) ((x) - (y) * rint((x)/(y)))
@@ -735,7 +736,7 @@ static void test_moon_event(int k, double offset_days, struct MoonInfo *moon_inf
double lSideTime;
/* Get (local_sidereal_time - MR_WINDOW / 2) hours in radians. */
lSideTime = local_sidereal_time(offset_days, longitude) * 2 * PI / 360.0;
lSideTime = local_sidereal_time(offset_days, longitude) * PI / 180.0;
/* Calculate hour angle */
ha[0] = lSideTime - ra[0] + k*K1;
@@ -892,9 +893,11 @@ calculate_moonrise_moonset(double latitude, double longitude, time_t t,
}
}
/* Get next moonrise in minutes after midnight of BASEYR
/* Get next moonrise or moonset in minutes after midnight of BASEYR
starting from given DSE.
Returns 0 if no moonrise could be computes */
Returns 0 if no moonrise could be computed
If want_angle is true, then returns the azimuth of the event rather
than the time of the event */
#define ME_SEARCH_DAYS 180
static int GetMoonevent(int dse, int is_rise, int want_angle)