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charts3.cpp
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/*
** Astrolog (Version 6.40) File: charts3.cpp
**
** IMPORTANT NOTICE: Astrolog and all chart display routines and anything
** not enumerated below used in this program are Copyright (C) 1991-2018 by
** Walter D. Pullen (Astara@msn.com, http://www.astrolog.org/astrolog.htm).
** Permission is granted to freely use, modify, and distribute these
** routines provided these credits and notices remain unmodified with any
** altered or distributed versions of the program.
**
** The main ephemeris databases and calculation routines are from the
** library SWISS EPHEMERIS and are programmed and copyright 1997-2008 by
** Astrodienst AG. The use of that source code is subject to the license for
** Swiss Ephemeris Free Edition, available at http://www.astro.com/swisseph.
** This copyright notice must not be changed or removed by any user of this
** program.
**
** Additional ephemeris databases and formulas are from the calculation
** routines in the program PLACALC and are programmed and Copyright (C)
** 1989,1991,1993 by Astrodienst AG and Alois Treindl (alois@astro.ch). The
** use of that source code is subject to regulations made by Astrodienst
** Zurich, and the code is not in the public domain. This copyright notice
** must not be changed or removed by any user of this program.
**
** The original planetary calculation routines used in this program have
** been copyrighted and the initial core of this program was mostly a
** conversion to C of the routines created by James Neely as listed in
** 'Manual of Computer Programming for Astrologers', by Michael Erlewine,
** available from Matrix Software.
**
** The PostScript code within the core graphics routines are programmed
** and Copyright (C) 1992-1993 by Brian D. Willoughby (brianw@sounds.wa.com).
**
** More formally: 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 and inspiring, 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, a copy of which is in the
** LICENSE.HTM file included with Astrolog, and at http://www.gnu.org
**
** Initial programming 8/28-30/1991.
** X Window graphics initially programmed 10/23-29/1991.
** PostScript graphics initially programmed 11/29-30/1992.
** Last code change made 7/22/2018.
*/
#include "astrolog.h"
/*
******************************************************************************
** Multiple Chart Scanning Routines.
******************************************************************************
*/
/* Display a list of transit events. Called from ChartInDaySearch. */
void PrintInDays(InDayInfo *pid, int occurcount, flag fProg)
{
char sz[cchSzDef];
int nVoid, i, j, k, s1, s2, s3;
for (i = 0; i < occurcount; i++) {
/* Detect whether this aspect indicates the Moon going void of course, */
/* and if so how long the Moon is v/c before entering next sign. This */
/* requires the sign event to be in the same list as the Moon aspect. */
nVoid = -1;
if (pid[i].aspect > 0 && (pid[i].source == oMoo || pid[i].dest == oMoo)) {
for (j = i+1; j < occurcount; j++) {
if (pid[j].aspect > 0 &&
(pid[j].source == oMoo || pid[j].dest == oMoo))
break;
if (pid[j].aspect == aSig && pid[j].source == oMoo) {
nVoid = (pid[j].day - pid[i].day) * 24*60*60;
nVoid += (int)((pid[j].time - pid[i].time) * 60.0);
break;
}
}
}
/* Display the current transit event. */
s1 = (int)pid[i].time/60;
s2 = (int)pid[i].time-s1*60;
s3 = us.fSeconds ? (int)(pid[i].time*60.0)-((s1*60+s2)*60) : -1;
SetCI(ciSave, pid[i].mon, pid[i].day, pid[i].yea,
pid[i].time / 60.0, Dst, Zon, Lon, Lat);
k = DayOfWeek(pid[i].mon, pid[i].day, pid[i].yea);
AnsiColor(kRainbowA[k + 1]);
sprintf(sz, "(%.3s) ", szDay[k]); PrintSz(sz);
AnsiColor(kDefault);
sprintf(sz, "%s %s ",
SzDate(pid[i].mon, pid[i].day, pid[i].yea, fFalse),
SzTime(s1, s2, s3)); PrintSz(sz);
PrintAspect(pid[i].source, pid[i].sign1, pid[i].ret1, pid[i].aspect,
pid[i].dest, pid[i].sign2, pid[i].ret2, (char)(fProg ? 'e' : 'd'));
PrintInDayEvent(pid[i].source, pid[i].aspect, pid[i].dest, nVoid);
}
}
/* Search through a day or longer period, and print out the times of exact */
/* aspects among planets during that day, as specified with the -d switch, */
/* as well as times when planets changes sign or direction. To do this, cast */
/* charts for the beginning and end of the day (or a part of a day) and do a */
/* linear equation check to see if anything happens during the interval. */
void ChartInDaySearch(flag fProg)
{
InDayInfo id[MAXINDAY], idT, *pid = id;
int yea0, yea1, yea2, mon0, mon1, mon2, day0, day1, day2, counttotal = 0,
occurcount, maxinday = MAXINDAY, division, div, divSign,
i, j, k, l, s1, s2;
real divsiz, d1, d2, e1, e2, f1, f2, g;
flag fYear, fVoid;
/* If parameter 'fProg' is set, look for changes in a progressed chart. */
fYear = us.fInDayMonth && us.fInDayYear;
fVoid = !FIgnore(oMoo) && !us.fIgnoreSign && us.fInDayMonth;
division = (fYear || fProg) ? (us.nDivision + 9) / 10 : us.nDivision;
divsiz = 24.0 / (real)division*60.0;
divSign = cSign * us.nSignDiv;
/* If -dY in effect, then search through a range of years. */
yea1 = yea2 = !fProg ? Yea : YeaT;
if (fYear && us.nEphemYears != 0) {
if (us.nEphemYears < 0)
yea1 += (us.nEphemYears + 1);
else
yea2 += (us.nEphemYears - 1);
}
for (yea0 = yea1; yea0 <= yea2; yea0++) {
/* If -dy in effect, then search through the whole year, month by month. */
if (fYear) {
mon1 = 1; mon2 = 12;
} else
mon1 = mon2 = !fProg ? Mon : MonT;
/* Start searching the month or months in question for exciting events. */
for (mon0 = mon1; mon0 <= mon2; mon0++) {
if (us.fInDayMonth) {
day1 = 1;
day2 = DayInMonth(mon0, yea0);
} else
day1 = day2 = !fProg ? Day : DayT;
/* Start searching the day or days in question for exciting events. */
for (day0 = day1; day0 <= day2; day0 = AddDay(mon0, day0, yea0, 1)) {
occurcount = 0;
maxinday = MAXINDAY - (int)(pid - id);
/* Cast chart for beginning of day and store it for future use. */
SetCI(ciCore, mon0, day0, yea0, 0.0, Dst, Zon, Lon, Lat);
if (us.fProgress = fProg) {
is.JDp = MdytszToJulian(mon0, day0, yea0, 0.0, Dst, Zon);
ciCore = ciMain;
}
CastChart(fTrue);
cp2 = cp0;
/* Now divide the day into segments and search each segment in turn. */
/* More segments is slower, but has slightly better time accuracy. */
for (div = 1; div <= division; div++) {
/* Cast the chart for the ending time of the present segment. The */
/* beginning time chart is copied from the previous end time chart. */
SetCI(ciCore, mon0, day0, yea0,
24.0*(real)div/(real)division, Dst, Zon, Lon, Lat);
if (fProg) {
is.JDp = MdytszToJulian(mon0, day0+1, yea0, 0.0, Dst, Zon);
ciCore = ciMain;
}
CastChart(fTrue);
cp1 = cp2; cp2 = cp0;
/* Now search through the present segment for anything exciting. */
for (i = 0; i <= cObj; i++) if (!FIgnore(i) && (fProg || FThing(i))) {
s1 = SFromZ(cp1.obj[i])-1;
s2 = SFromZ(cp2.obj[i])-1;
/* Does the current planet change into the next or previous sign? */
if (!us.fIgnoreSign && FAllow(i) && occurcount < maxinday) {
l = NAbs(s1-s2);
if (s1 != s2 && (l == 1 || l == cSign-1)) {
pid[occurcount].source = i;
pid[occurcount].aspect = aSig;
pid[occurcount].dest = s2+1;
pid[occurcount].time = MinDistance(cp1.obj[i],
(real)(cp1.dir[i] >= 0.0 ? s2 : s1) * 30.0) / MinDistance(
cp1.obj[i], cp2.obj[i])*divsiz + (real)(div-1)*divsiz;
pid[occurcount].sign1 = pid[occurcount].sign2 = s1+1;
pid[occurcount].ret1 = pid[occurcount].ret2 =
(int)RSgn(cp1.dir[i]) + (int)RSgn(cp2.dir[i]);
pid[occurcount].mon = mon0;
pid[occurcount].day = day0;
pid[occurcount].yea = yea0;
occurcount++;
/* Does the current planet change into next or previous degree? */
} else if (us.nSignDiv > 1) {
j = (int)(cp1.obj[i] / (rDegMax / (real)divSign));
k = (int)(cp2.obj[i] / (rDegMax / (real)divSign));
l = NAbs(j-k);
if (j != k && (l == 1 || l == divSign-1)) {
l = k;
if (j == k+1 || j == k-(divSign-1))
l = j;
pid[occurcount].source = i;
pid[occurcount].aspect = aDeg;
pid[occurcount].dest = l;
pid[occurcount].time = MinDistance(cp1.obj[i],
(real)l * (rDegMax / (real)divSign)) / MinDistance(cp1.obj[i],
cp2.obj[i])*divsiz + (real)(div-1)*divsiz;
pid[occurcount].sign1 = pid[occurcount].sign2 = s1+1;
pid[occurcount].ret1 = pid[occurcount].ret2 = (l == k) ? 1 : -1;
pid[occurcount].mon = mon0;
pid[occurcount].day = day0;
pid[occurcount].yea = yea0;
occurcount++;
}
}
}
/* Does the current planet go retrograde or direct? */
if (!us.fIgnoreDir && (cp1.dir[i] < 0.0) != (cp2.dir[i] < 0.0) &&
FAllow(i) && occurcount < maxinday) {
pid[occurcount].source = i;
pid[occurcount].aspect = aDir;
pid[occurcount].dest = cp2.dir[i] < 0.0;
pid[occurcount].time = RAbs(cp1.dir[i])/(RAbs(cp1.dir[i])+
RAbs(cp2.dir[i]))*divsiz + (real)(div-1)*divsiz;
pid[occurcount].sign1 = pid[occurcount].sign2 = s1+1;
pid[occurcount].ret1 = pid[occurcount].ret2 = 0;
pid[occurcount].mon = mon0;
pid[occurcount].day = day0;
pid[occurcount].yea = yea0;
occurcount++;
}
/* Now search for anything making an aspect to the current planet. */
for (j = i+1; j <= cObj; j++) if (!FIgnore(j) && (fProg || FThing(j)))
if (!us.fParallel) {
for (k = 1; k <= us.nAsp; k++) if (FAcceptAspect(i, -k, j)) {
d1 = cp1.obj[i]; d2 = cp2.obj[i];
e1 = cp1.obj[j]; e2 = cp2.obj[j];
if (MinDistance(d1, d2) < MinDistance(e1, e2)) {
SwapR(&d1, &e1);
SwapR(&d2, &e2);
}
/* We are searching each aspect in turn. Let's subtract the */
/* size of the aspect from the angular difference, so we can */
/* then treat it like a conjunction. */
if (MinDistance(e1, Mod(d1-rAspAngle[k])) <
MinDistance(e2, Mod(d2+rAspAngle[k]))) {
e1 = Mod(e1+rAspAngle[k]);
e2 = Mod(e2+rAspAngle[k]);
} else {
e1 = Mod(e1-rAspAngle[k]);
e2 = Mod(e2-rAspAngle[k]);
}
/* Check to see if the aspect actually occurs during our */
/* segment, making sure we take into account if one or both */
/* planets are retrograde or if they cross the Aries point. */
f1 = e1-d1;
if (RAbs(f1) > rDegHalf)
f1 -= RSgn(f1)*rDegMax;
f2 = e2-d2;
if (RAbs(f2) > rDegHalf)
f2 -= RSgn(f2)*rDegMax;
if (MinDistance(Midpoint(d1, d2), Midpoint(e1, e2)) < rDegQuad &&
RSgn(f1) != RSgn(f2) && occurcount < maxinday) {
pid[occurcount].source = i;
pid[occurcount].aspect = k;
pid[occurcount].dest = j;
pid[occurcount].mon = mon0;
pid[occurcount].day = day0;
pid[occurcount].yea = yea0;
/* Horray! The aspect occurs sometime during the interval. */
/* Now we just have to solve an equation in two variables to */
/* find out where the "lines" cross, i.e. the aspect's time. */
f1 = d2-d1;
if (RAbs(f1) > rDegHalf)
f1 -= RSgn(f1)*rDegMax;
f2 = e2-e1;
if (RAbs(f2) > rDegHalf)
f2 -= RSgn(f2)*rDegMax;
g = (RAbs(d1-e1) > rDegHalf ?
(d1-e1)-RSgn(d1-e1)*rDegMax : d1-e1)/(f2-f1);
pid[occurcount].time = g*divsiz + (real)(div-1)*divsiz;
pid[occurcount].sign1 = SFromZ(Mod(cp1.obj[i]+
RSgn(cp2.obj[i]-cp1.obj[i])*
(RAbs(cp2.obj[i]-cp1.obj[i]) > rDegHalf ? -1 : 1)*
RAbs(g)*MinDistance(cp1.obj[i], cp2.obj[i])));
pid[occurcount].sign2 = SFromZ(Mod(cp1.obj[j]+
RSgn(cp2.obj[j]-cp1.obj[j])*
(RAbs(cp2.obj[j]-cp1.obj[j]) > rDegHalf ? -1 : 1)*
RAbs(g)*MinDistance(cp1.obj[j], cp2.obj[j])));
pid[occurcount].ret1 =
(int)RSgn(cp1.dir[i]) + (int)RSgn(cp2.dir[i]);
pid[occurcount].ret2 =
(int)RSgn(cp1.dir[j]) + (int)RSgn(cp2.dir[j]);
occurcount++;
}
}
} else {
for (k = 1; k <= Min(us.nAsp, aOpp); k++)
if (FAcceptAspect(i, -k, j)) {
d1 = cp1.alt[i]; d2 = cp2.alt[i];
e1 = cp1.alt[j]; e2 = cp2.alt[j];
g = cp1.obj[i]; EclToEqu(&g, &d1);
g = cp2.obj[i]; EclToEqu(&g, &d2);
g = cp1.obj[j]; EclToEqu(&g, &e1);
g = cp2.obj[j]; EclToEqu(&g, &e2);
/* We are searching each aspect in turn. Negate the sign of the */
/* aspect if needed, so we can then treat it like a parallel. */
if (k == aOpp) {
neg(e1);
neg(e2);
}
/* Check to see if the aspect actually occurs during our */
/* segment, making sure we take into account if one or both */
/* planets are retrograde. */
f1 = e1-d1;
f2 = e2-d2;
if (RSgn(f1) != RSgn(f2) && occurcount < maxinday) {
pid[occurcount].source = i;
pid[occurcount].aspect = k;
pid[occurcount].dest = j;
pid[occurcount].mon = mon0;
pid[occurcount].day = day0;
pid[occurcount].yea = yea0;
/* Horray! The aspect occurs sometime during the interval. */
/* Now we just have to solve an equation in two variables to */
/* find out where the "lines" cross, i.e. the aspect's time. */
f1 = d2-d1;
f2 = e2-e1;
g = (d1-e1)/(f2-f1);
pid[occurcount].time = g*divsiz + (real)(div-1)*divsiz;
pid[occurcount].sign1 = SFromZ(Mod(cp1.obj[i]+
RSgn(cp2.obj[i]-cp1.obj[i])*
(RAbs(cp2.obj[i]-cp1.obj[i]) > rDegHalf ? -1 : 1)*
RAbs(g)*MinDistance(cp1.obj[i], cp2.obj[i])));
pid[occurcount].sign2 = SFromZ(Mod(cp1.obj[j]+
RSgn(cp2.obj[j]-cp1.obj[j])*
(RAbs(cp2.obj[j]-cp1.obj[j]) > rDegHalf ? -1 : 1)*
RAbs(g)*MinDistance(cp1.obj[j], cp2.obj[j])));
pid[occurcount].ret1 =
(int)RSgn(cp1.dir[i]) + (int)RSgn(cp2.dir[i]);
pid[occurcount].ret2 =
(int)RSgn(cp1.dir[j]) + (int)RSgn(cp2.dir[j]);
occurcount++;
}
}
} /* us.fParallel */
} /* i */
} /* div */
/* After all the aspects, etc, in the day have been located, sort */
/* them by time at which they occur, so we can print them in order. */
for (i = 1; i < occurcount; i++) {
j = i-1;
while (j >= 0 && pid[j].time > pid[j+1].time) {
idT = pid[j]; pid[j] = pid[j+1]; pid[j+1] = idT;
j--;
}
}
/* Finally, loop through and display each aspect and when it occurs. */
if (!fVoid || (day0 >= day2 && mon0 >= mon2 && yea0 >= yea2)) {
if (fVoid) {
occurcount += (int)(pid - id);
pid = id;
}
PrintInDays(id, occurcount, fProg);
} else {
pid += occurcount;
j = MAXINDAY >> 2;
if (pid - id > j << 1) {
PrintInDays(id, j, fProg);
for (i = 0; i < pid - id - j; i++)
id[i] = id[i + j];
pid -= j;
}
}
if (occurcount >= maxinday)
PrintSz("Too many transit events found.\n");
counttotal += occurcount;
} /* day0 */
} /* mon0 */
} /* yea0 */
if (counttotal == 0)
PrintSz("No transit events found.\n");
/* Recompute original chart placements as we've overwritten them. */
ciCore = ciMain;
CastChart(fTrue);
}
/* Search through a month, year, or years, and print out the times of exact */
/* transits where planets in the time frame make aspect to the planets in */
/* some other chart, as specified with the -t switch. To do this, we cast */
/* charts for the start and end of each month, or within a month, and do an */
/* equation check for aspects to the other base chart during the interval. */
void ChartTransitSearch(flag fProg)
{
real time[MAXINDAY];
char sz[cchSzDef];
int source[MAXINDAY], aspect[MAXINDAY], dest[MAXINDAY], sign[MAXINDAY],
isret[MAXINDAY], M1, M2, Y1, Y2, counttotal = 0, occurcount, division,
div, nAsp, fCusp, i, j, k, s1, s2, s3, s4;
real divsiz, daysiz, d, e1, e2, f1, f2, mc = is.MC, ob = is.OB;
CP cpT = cp0;
CI ciT;
/* Save away natal chart and initialize things. */
ciT = ciTran;
if (fProg)
fCusp = fFalse;
else {
fCusp = fTrue;
for (i = cuspLo; i <= cuspHi; i++)
fCusp &= ignore2[i];
}
division = us.nDivision;
if (!fProg && !fCusp)
division = Max(division, 96);
nAsp = is.fReturn ? aCon : us.nAsp;
if (us.fParallel)
nAsp = Min(nAsp, aOpp);
Y1 = Y2 = YeaT;
M1 = M2 = MonT;
if (us.fInDayYear) {
M1 = 1; M2 = 12;
if (us.nEphemYears != 0) {
if (us.nEphemYears < 0)
Y1 += (us.nEphemYears + 1);
else
Y2 += (us.nEphemYears - 1);
}
}
/* Start searching the year or years in question for any transits. */
for (YeaT = Y1; YeaT <= Y2; YeaT++)
/* Start searching the month or months in question for any transits. */
for (MonT = M1; MonT <= M2; MonT++) {
daysiz = (real)DayInMonth(MonT, YeaT)*24.0*60.0;
divsiz = daysiz / (real)division;
/* Cast chart for beginning of month and store it for future use. */
SetCI(ciCore, MonT, 1, YeaT, 0.0, DstT, ZonT, LonT, LatT);
if (us.fProgress = fProg) {
is.JDp = MdytszToJulian(MM, DD, YY, 0.0, SS, ZZ);
ciCore = ciMain;
}
for (i = 0; i <= oNorm; i++)
SwapN(ignore[i], ignore2[i]);
CastChart(fTrue);
for (i = 0; i <= oNorm; i++)
SwapN(ignore[i], ignore2[i]);
cp2 = cp0;
/* Divide our month into segments and then search each segment in turn. */
for (div = 1; div <= division; div++) {
occurcount = 0;
/* Cast the chart for the ending time of the present segment, and */
/* copy the start time chart from the previous end time chart. */
d = 1.0 + (daysiz/24.0/60.0)*(real)div/(real)division;
SetCI(ciCore, MonT, (int)d, YeaT, RFract(d)*24.0,
DstT, ZonT, LonT, LatT);
if (fProg) {
is.JDp = MdytszToJulian(MM, DD, YY, 0.0, SS, ZZ);
ciCore = ciMain;
}
for (i = 0; i <= oNorm; i++)
SwapN(ignore[i], ignore2[i]);
CastChart(fTrue);
for (i = 0; i <= oNorm; i++)
SwapN(ignore[i], ignore2[i]);
cp1 = cp2; cp2 = cp0;
/* Now search through the present segment for any transits. Note that */
/* stars can be transited, but they can't make transits themselves. */
for (i = 0; i <= cObj; i++) {
/* Check if 3D house change occurs during time segment. */
if (us.fHouse3D && !us.fIgnoreSign && !FIgnore2(i)) {
is.MC = mc; is.OB = ob;
e1 = cp1.obj[i]; f1 = HousePlaceIn3D(e1, cp1.alt[i]);
e2 = cp2.obj[i]; f2 = HousePlaceIn3D(e2, cp2.alt[i]);
s1 = SFromZ(f1)-1; s2 = SFromZ(f2)-1;
k = NAbs(s1-s2);
if (s1 != s2 && (k == 1 || k == cSign-1) && !FIgnore(cuspLo-1+k) &&
occurcount < MAXINDAY) {
source[occurcount] = i;
aspect[occurcount] = aHou;
dest[occurcount] = s2+1;
time[occurcount] = MinDistance(f1,
(real)(cp1.dir[i] >= 0.0 ? s2 : s1) * 30.0) /
MinDistance(f1, f2)*divsiz + (real)(div-1)*divsiz;
sign[occurcount] = SFromZ(cp1.obj[i]);
isret[occurcount] = (int)RSgn(cp1.dir[i]) +
(int)RSgn(cp2.dir[i]);
occurcount++;
}
}
if (FIgnore(i))
continue;
for (j = 0; j <= oNorm; j++) {
if ((is.fReturn ? i != j : FIgnore2(j)) || (fCusp && !FThing(j)))
continue;
/* Between each pair of planets, check if they make any aspects. */
if (!us.fParallel) {
for (k = 1; k <= nAsp; k++) if (FAcceptAspect(i, k, j)) {
d = cpT.obj[i]; e1 = cp1.obj[j]; e2 = cp2.obj[j];
if (MinDistance(e1, Mod(d-rAspAngle[k])) <
MinDistance(e2, Mod(d+rAspAngle[k]))) {
e1 = Mod(e1+rAspAngle[k]);
e2 = Mod(e2+rAspAngle[k]);
} else {
e1 = Mod(e1-rAspAngle[k]);
e2 = Mod(e2-rAspAngle[k]);
}
/* Check to see if the present aspect actually occurs during the */
/* segment, making sure we check any Aries point crossings. */
f1 = e1-d;
if (RAbs(f1) > rDegHalf)
f1 -= RSgn(f1)*rDegMax;
f2 = e2-d;
if (RAbs(f2) > rDegHalf)
f2 -= RSgn(f2)*rDegMax;
if (MinDistance(d, Midpoint(e1, e2)) < rDegQuad &&
RSgn(f1) != RSgn(f2) && occurcount < MAXINDAY) {
/* Ok, we have found a transit. Now determine the time */
/* and save this transit in our list to be printed. */
source[occurcount] = j;
aspect[occurcount] = k;
dest[occurcount] = i;
time[occurcount] = RAbs(f1)/(RAbs(f1)+RAbs(f2))*divsiz +
(real)(div-1)*divsiz;
sign[occurcount] = SFromZ(Mod(
MinDistance(cp1.obj[j], Mod(d-rAspAngle[k])) <
MinDistance(cp2.obj[j], Mod(d+rAspAngle[k])) ?
d-rAspAngle[k] : d+rAspAngle[k]));
isret[occurcount] = (int)RSgn(cp1.dir[j]) +
(int)RSgn(cp2.dir[j]);
occurcount++;
}
}
} else {
for (k = 1; k <= nAsp; k++) if (FAcceptAspect(i, k, j)) {
d = cpT.alt[i]; e1 = cp1.alt[j]; e2 = cp2.alt[j];
if (k == aOpp) {
neg(e1);
neg(e2);
}
/* Check if parallel aspect occurs during time segment. */
f1 = e1-d;
f2 = e2-d;
if (RSgn(f1) != RSgn(f2) && occurcount < MAXINDAY) {
/* Ok, found a parallel transit. Now determine the time */
/* and save this transit in our list to be printed. */
source[occurcount] = j;
aspect[occurcount] = k;
dest[occurcount] = i;
time[occurcount] = RAbs(f1)/(RAbs(f1)+RAbs(f2))*divsiz +
(real)(div-1)*divsiz;
sign[occurcount] = SFromZ(cpT.obj[i]);
isret[occurcount] = (int)RSgn(cp1.dir[j]) +
(int)RSgn(cp2.dir[j]);
occurcount++;
}
}
} /* us.fParallel */
} /* j */
} /* i */
/* After all transits located, sort them by time at which they occur. */
for (i = 1; i < occurcount; i++) {
j = i-1;
while (j >= 0 && time[j] > time[j+1]) {
SwapN(source[j], source[j+1]);
SwapN(aspect[j], aspect[j+1]);
SwapN(dest[j], dest[j+1]);
SwapR(&time[j], &time[j+1]);
SwapN(sign[j], sign[j+1]);
SwapN(isret[j], isret[j+1]);
j--;
}
}
/* Now loop through list and display all the transits. */
for (i = 0; i < occurcount; i++) {
j = (int)(time[i] * 60.0);
s1 = j / (24*60*60);
j = j - s1 * (24*60*60);
s2 = j / (60*60);
k = j - s2 * (60*60);
s3 = k / 60;
s4 = us.fSeconds ? k - s3*60 : -1;
SetCI(ciSave, MonT, s1+1, YeaT, (real)j / (60.0*60.0),
DstT, ZonT, LonT, LatT);
if (us.fSeconds) {
k = DayOfWeek(MonT, s1+1, YeaT);
AnsiColor(kRainbowA[k + 1]);
sprintf(sz, "(%.3s) ", szDay[k]); PrintSz(sz);
AnsiColor(kDefault);
}
sprintf(sz, "%s %s ",
SzDate(MonT, s1+1, YeaT, fFalse), SzTime(s2, s3, s4)); PrintSz(sz);
PrintAspect(source[i], sign[i], isret[i], aspect[i],
dest[i], SFromZ(cpT.obj[dest[i]]), (int)RSgn(cpT.dir[dest[i]]),
(char)(fProg ? 'u' : 't'));
/* Check for a Solar, Lunar, or any other return. */
if (aspect[i] == aCon && source[i] == dest[i]) {
AnsiColor(kMainA[1]);
sprintf(sz, " (%s Return)", source[i] == oSun ? "Solar" :
(source[i] == oMoo ? "Lunar" : szObjDisp[source[i]]));
PrintSz(sz);
}
PrintL();
#ifdef INTERPRET
if (us.fInterpret)
InterpretTransit(source[i], aspect[i], dest[i]);
#endif
AnsiColor(kDefault);
}
if (occurcount >= MAXINDAY)
PrintSz("Too many transits found.\n");
counttotal += occurcount;
} /* div */
} /* MonT */
if (counttotal == 0)
PrintSz("No transits found.\n");
/* Recompute original chart placements as we've overwritten them. */
ciCore = ciMain; ciTran = ciT;
cp0 = cpT;
us.fProgress = fFalse;
CastChart(fTrue);
}
/* Print a chart graphing transits over time. This covers both transit to */
/* transit (-B switch) and transit to natal (-V switch). Each aspect */
/* present during the period has its own row, showing its strength from 0-9 */
/* (blank=aspect out of orb, "0"=0-9% of max strength, "9"=90-100% exact). */
void ChartTransitGraph(flag fTrans, flag fProg)
{
TransGraInfo *rgEph;
word **ppw, *pw;
char sz[cchSzDef];
int cAsp, cSlice, occurcount = 0, ymin, x, y, asp, iw, iwFocus, nMax,
n, ch, obj;
flag fMonth = us.fInDayMonth, fYear = us.fInDayYear, fMark;
CI ciT;
real rT;
/* Initialize variables. */
rgEph = (TransGraInfo *)PAllocate(sizeof(TransGraInfo),
"transit graph grid");
if (rgEph == NULL)
goto LDone;
ClearB((lpbyte)(*rgEph), sizeof(TransGraInfo));
if (!fTrans && !fProg)
ciT = ciMain;
else
ciT = ciTran;
cAsp = is.fReturn ? aCon : us.nAsp;
ymin = 1-fTrans;
/* Determine character width of chart based on time period being graphed. */
if (!fMonth) {
cSlice = 49;
iwFocus = (int)(ciT.tim / 0.5);
} else if (!fYear) {
cSlice = (DayInMonth(ciT.mon, ciT.yea) << 1) + 1;
iwFocus = ((ciT.day-1) << 1) + (ciT.tim >= 12.0);
} else if (us.nEphemYears <= 1) {
cSlice = 12*5;
iwFocus = (ciT.mon-1)*5 + (Min(ciT.day, 30)-1)/6;
} else {
cSlice = 5*12;
iwFocus = 12*2 + (ciT.mon-1);
}
if (iwFocus == 0 && ciT.tim <= 0.0)
iwFocus = -1;
/* Calculate and fill out aspect strength arrays for each aspect present. */
if (fTrans || fProg) {
ciCore = ciMain;
us.fProgress = fFalse;
CastChart(fTrue);
cp1 = cp0;
}
for (iw = 0; iw < cSlice; iw++) {
/* Cast chart for current time slice. */
ciCore = ciT;
if (!fMonth) {
TT = (real)iw * 0.5;
} else if (!fYear) {
DD = (iw >> 1) + 1;
TT = FOdd(iw) ? 12.0 : 0.0;
} else if (us.nEphemYears <= 1) {
MM = (iw / 5) + 1;
DD = (iw % 5) * 5 + 1;
TT = 0.0;
} else {
MM = (iw % 12) + 1;
DD = 1;
YY = YY - 2 + (iw / 12);
TT = 0.0;
}
if (fTrans)
for (obj = 0; obj <= oNorm; obj++)
SwapN(ignore[obj], ignore2[obj]);
if (us.fProgress = fProg) {
is.JDp = MdytszToJulian(MM, DD, YY, TT, SS, ZZ);
ciCore = ciMain;
}
CastChart(fTrue);
if (fTrans)
for (obj = 0; obj <= oNorm; obj++)
SwapN(ignore[obj], ignore2[obj]);
/* Compute aspects present for current time slice. */
if (!fTrans) {
if (!FCreateGrid(fFalse))
goto LDone;
} else {
cp2 = cp0;
if (!FCreateGridRelation(fFalse))
goto LDone;
}
/* For each aspect present in slice, add its strength to array. */
for (y = ymin; y <= cObj; y++) {
if (FIgnore(y) || (!fTrans && !FProperGraph(y)))
continue;
for (x = 0; x < (fTrans ? cObj+1 : y); x++) {
if (!fTrans ? FIgnore(x) || !FProperGraph(x) :
FIgnore2(x) || !FProperGraph(x) || (is.fReturn && x != y))
continue;
asp = grid->n[x][y];
if (!FBetween(asp, aCon, cAsp))
continue;
ppw = &(*rgEph)[x][y][asp];
if (*ppw == NULL) {
*ppw = (word *)PAllocate(cSlice * sizeof(word),
"transit ephemeris entry");
if (*ppw == NULL)
goto LDone;
pw = *ppw;
ClearB((lpbyte)pw, cSlice * sizeof(word));
} else
pw = *ppw;
n = grid->v[x][y];
rT = (real)NAbs(n) / 3600.0;
rT /= GetOrb(x, y, asp);
pw[iw] = 65535 - (int)(rT * (65536.0 - rSmall));
}
}
}
/* Print chart header row(s). */
AnsiColor(kMainA[1]);
if (!fMonth)
sprintf(sz, SzDate(ciT.mon, ciT.day, ciT.yea, fFalse));
else if (!fYear)
sprintf(sz, "%3.3s%5d", szMonth[ciT.mon], ciT.yea);
else if (us.nEphemYears <= 1)
sprintf(sz, "%4d", ciT.yea);
else
sz[0] = chNull;
PrintSz(sz);
PrintTab(' ', 12 + fTrans*4 - CchSz(sz));
AnsiColor(kDefault);
if (!fMonth) {
if (!us.fEuroTime)
sprintf(sz, "121a2a3a4a5a6a7a8a9a1011121p2p3p4p5p6p7p8p9p1011");
else
sprintf(sz, "000102030405060708091011121314151617181920212223");
for (iw = 0; sz[iw]; iw++) {
PrintCh(sz[iw]);
if (FOdd(iw))
AnsiColor((iw & 2) != 0 ? kMainA[2] : kMainA[3]);
}
} else if (!fYear) {
for (iw = 1; iw <= (cSlice >> 1); iw++) {
AnsiColor(FOdd(iw) ? kMainA[2] : kMainA[3]);
sprintf(sz, "%02d", iw); PrintSz(sz);
}
} else if (us.nEphemYears <= 1) {
for (iw = 1; iw <= 12; iw++) {
AnsiColor(FOdd(iw) ? kMainA[2] : kMainA[3]);
sprintf(sz, "%3.3s", szMonth[iw]); PrintSz(sz);
if (iw < 12)
PrintSz(" ");
}
} else {
for (iw = 0; iw < 5; iw++) {
AnsiColor(!FOdd(iw) ? kMainA[2] : kMainA[3]);
sprintf(sz, "%-12d", (fTrans || fProg ? YeaT : Yea) - 2 + iw);
PrintSz(sz);
}
PrintL();
PrintTab(' ', 12 + fTrans*4);
for (iw = 0; iw < cSlice; iw++) {
if ((iw % 12) == 0)
AnsiColor(iw % 24 == 0 ? kMainA[2] : kMainA[3]);
PrintCh(szMonth[iw % 12 + 1][0]);
}
}
PrintL();
/* Print the individual aspects present in order. */
for (y = ymin; y <= cObj; y++)
for (x = 0; x < (fTrans ? cObj+1 : y); x++)
for (asp = 1; asp <= cAsp; asp++) {
pw = (*rgEph)[x][y][asp];
if (pw == NULL)
continue;
occurcount++;
/* Print the name of the aspect in question. */
if (fTrans) {
AnsiColor(kMainA[3]);
PrintSz(!fProg ? "T." : "P.");
}
AnsiColor(kObjA[x]);
sprintf(sz, "%3.3s ", szObjDisp[x]); PrintSz(sz);
AnsiColor(kAspA[asp]);
sprintf(sz, "%s ", SzAspectAbbrev(asp)); PrintSz(sz);
if (fTrans) {
AnsiColor(kSignA(SFromZ(cp1.obj[y])));
PrintSz("N.");
}
AnsiColor(kObjA[y]);
sprintf(sz, "%3.3s ", szObjDisp[y]); PrintSz(sz);
AnsiColor(kAspA[asp]);
nMax = -1;
for (iw = 0; iw < cSlice; iw++) {
n = pw[iw];
if (n > nMax)
nMax = n;
}
/* Print the graph itself for the aspect in question. */
fMark = fFalse;
for (iw = 0; iw < cSlice; iw++) {
n = pw[iw];
if (n >= nMax || ((iw <= 0 || n > pw[iw-1]) &&
(iw >= cSlice-1 || n >= pw[iw+1]))) {
AnsiColor(kMainA[1]);
fMark = fTrue;
}
if (n == 0) {
if (iw != iwFocus)
ch = ' ';
else {
ch = '|';
AnsiColor(kMainA[3]);
fMark = fTrue;
}
} else
ch = '0' + ((n - 1) * 10 / 65535);
PrintCh(ch);
if (fMark) {
AnsiColor(kAspA[asp]);
fMark = fFalse;
}
}
PrintL();
}
if (occurcount == 0)
PrintSz("No transits found.\n");
/* Free temporarily allocated data, and restore original chart. */
LDone:
for (y = ymin; y <= cObj; y++)
for (x = 0; x < (fTrans ? cObj+1-10 : y); x++)
for (asp = 1; asp <= cAspect; asp++) {
pw = (*rgEph)[x][y][asp];
if (pw != NULL)
DeallocateP(pw);
}
if (rgEph != NULL)
DeallocateP(rgEph);
ciCore = ciMain;
us.fProgress = fFalse;
CastChart(fTrue);
}
/* Display a list of planetary rising times relative to the local horizon */
/* for the day indicated in the chart information, as specified with the */
/* -Zd switch. For the day, the time each planet rises (transits horizon */
/* in East half of sky), sets (transits horizon in West), reaches its */
/* zenith point (transits meridian in South half of sky), and nadirs */
/* transits meridian in North), is displayed. */
void ChartInDayHorizon(void)
{
char sz[cchSzDef];
int source[MAXINDAY], type[MAXINDAY], sign[MAXINDAY],
fRet[MAXINDAY], occurcount, division, div, s1, s2, s3, i, j, fT;
real time[MAXINDAY], rgalt1[objMax], rgalt2[objMax], azialt[MAXINDAY],
azi1, azi2, alt1, alt2, mc1, mc2, xA, yA, xV, yV, d, k;
CI ciT;
fT = us.fSidereal; us.fSidereal = fFalse;
division = us.nDivision;
occurcount = 0;
ciT = ciTwin; ciCore = ciMain; ciCore.tim = 0.0;
CastChart(fTrue);
mc2 = planet[oMC]; k = planetalt[oMC];
EclToEqu(&mc2, &k);
cp2 = cp0;
for (i = 0; i <= cObj; i++)
rgalt2[i] = planetalt[i];
/* Loop through the day, dividing it into a certain number of segments. */
/* For each segment we get the planet positions at its endpoints. */
for (div = 1; div <= division; div++) {
ciCore = ciMain; ciCore.tim = 24.0*(real)div/(real)division;
CastChart(fTrue);