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xcharts1.c
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/*
** Astrolog (Version 5.41F) File: xcharts1.c
**
** Code changed by Valentin Abramov ([email protected])
**
** IMPORTANT NOTICE: The graphics database and chart display routines
** used in this program are Copyright (C) 1991-1998 by Walter D. Pullen
** ([email protected], http://www.magitech.com/~cruiser1/astrolog.htm).
** Permission is granted to freely use and distribute these routines
** provided one doesn't sell, restrict, or profit from them in any way.
** Modification is allowed provided these notices remain with any
** altered or edited versions of the program.
**
** The main planetary calculation routines used in this program have
** been Copyrighted and the core of this program is basically a
** conversion to C of the routines created by James Neely as listed in
** Michael Erlewine's 'Manual of Computer Programming for Astrologers',
** available from Matrix Software. The copyright gives us permission to
** use the routines for personal use but not to sell them or profit from
** them in any way.
**
** The PostScript code within the core graphics routines are programmed
** and Copyright (C) 1992-1993 by Brian D. Willoughby
** ([email protected]). Conditions are identical to those above.
**
** The extended accurate ephemeris databases and formulas are from the
** calculation routines in the library SWISS EPHEMERIS and are programmed and
** copyright 1998 by Astrodienst AG.
** The use of that source code is subject to
** the Swiss Ephemeris Public License, available at
** http://www.astro.ch/swisseph. This copyright notice must not be
** changed or removed by any user of this program.
**
** Initial programming 8/28,30, 9/10,13,16,20,23, 10/3,6,7, 11/7,10,21/1991.
** X Window graphics initially programmed 10/23-29/1991.
** PostScript graphics initially programmed 11/29-30/1992.
** Last code change made 12/20/1998.
** Modifications from version 5.40 to 5.41 are by Alois Treindl.
*/
#include "astrolog.h"
#ifdef GRAPH
void DrawCalendar P((int, int, int, int, int));
/*
******************************************************************************
** Single Chart Graphics Routines.
******************************************************************************
*/
/* Draw a wheel chart, in which the 12 signs and houses are delineated, and */
/* the planets are inserted in their proper places. This is the default */
/* graphics chart to generate, as is done when the -v or -w (or no) switches */
/* are included with -X. Draw the aspects in the middle of chart, too. */
void XChartWheel()
{
real xsign[cSign+1], xhouse[cSign+1], xplanet[objMax], symbol[objMax];
int cx, cy, i, j, k, first, n;
real unitx, unity, argum, argum1, value, valt, l, m, p, ip, jp;
real power1[oNorm+1];
real ccc=2.0;
/* Set up variables and temporarily automatically decrease the horizontal */
/* chart size to leave room for the sidebar if that mode is in effect. */
if (gs.fText && !us.fVelocity)
gs.xWin -= xSideT;
cx = gs.xWin/2 - 1; cy = gs.yWin/2 - 1;
unitx = (real)cx; unity = (real)cy;
gi.rAsc = gs.objLeft ? planet[abs(gs.objLeft)]+rDegQuad*(gs.objLeft < 0) :
chouse[1];
if (us.fVedic)
gi.rAsc = gs.objLeft ? (gs.objLeft < 0 ? 120.0 : -60.0)-gi.rAsc : 0.0;
if (hRevers == 2)
gi.rAsc = chouse[7];
/* Fill out arrays with the angular degree on the circle of where to */
/* place each object, cusp, and sign glyph based on the chart mode. */
if (gi.nMode == gWheel) {
for (i = 1; i <= cSign; i++)
xhouse[i] = PZ(chouse[i]);
} else {
gi.rAsc -= chouse[1];
for (i = 1; i <= cSign; i++)
xhouse[i] = PZ(ZFromS(i));
}
for (i = 1; i <= cSign; i++)
xsign[i] = PZ(HousePlaceInX(ZFromS(i)));
for (i = 0; i <= cObj; i++)
xplanet[i] = PZ(HousePlaceInX(planet[i]));
/* Go draw the outer sign and house rings. */
DrawWheel(xsign, xhouse, cx, cy, unitx, unity, gi.rAsc,
0.65, 0.70, 0.75, 0.80, 0.875);
for (i = 0; i <= cObj; i++) /* Figure out where to put planet glyphs. */
symbol[i] = xplanet[i];
FillSymbolRing(symbol, 1.0);
/* For each planet, draw a small dot indicating where it is, and then */
/* a line from that point to the planet's glyph. */
DrawSymbolRing(symbol, xplanet, ret, cx, cy, unitx, unity,
0.50, 0.52, 0.56, 0.60);
if(!FCreateGrid(fFalse))
return;
for (i = 0; i <= oNorm; i++)
power1[i] = rObjInf[i];
if(us.nRel <= 0) {
PlanetPPower();
for (i = 0; i <= oNorm; i++)
power1[i] = ppower1[i];
}
STension = SHarmon = SConjunct = SSumma = SChart = 0.0;
/* Added by V.A. Additional graphics output - tension/harmony chart. */
if (TensChart != 0) {
DrawColor(kWhite);
for (i = 0; i < 180; i++) {
value = 0.25;
argum = (real)(i)*2.0;
argum = PZ(HousePlaceInX(argum));
DrawPoint(cx+POINT1(unitx, value, PX(argum)),
cy+POINT1(unity, value, PY(argum)));
}
DrawColor(kWhite);
for (i = 0; i < 3600; i++) {
value = 0.0;
if (TensChart <= 1)
first = aOpp;
else
first = aCon;
argum = (real)(i)/10.0;
argum1 = PZ(HousePlaceInX(argum));
for (j = 1; j <= cObj; j++) if (!ignore[j]) {
l = MinDistance(argum, planet[j]);
for (k = first; k <= us.nAsp; k++) {
m = RAbs(l - rAspAngle[k]);
if (m < GetOrb(1,j,k)){
if (FCusp(j) && (k!=1 || k!=4))
continue;
valt = (sqrt)(20.0*ppower1[j])*rAspInf[k]*
(1.0 - m/GetOrb(1,j,k)) ;
if ((k==aOpp || k==aSqu || k==aSSq || k==aSes ) && (TensChart <= 1))
valt = - valt;
value = value + CoeffTens*valt/120.0;
}
}
}
if (TensChart == 1)
value = 0.25 + value;
if (TensChart == -1)
value = 0.25 - value;
if (value < 0.0)
value = 0.0;
if (value > 0.6)
value = 0.6;
DrawPoint(cx+POINT1(unitx, value, PX(argum1)),
cy+POINT1(unity, value, PY(argum1)));
}
} else {
/* End V.A. addition */
/* Draw lines connecting planets which have aspects between them. */
/* Now in bonus mode dashenness of aspect lines depends of absolute */
/* power of aspect, not only of orb. V.A. */
for (j = cObj; j >= 1; j--)
for (i = j-1; i >= 0; i--)
if (grid->n[i][j] && FProper(i) && FProper(j)) {
k = grid->n[i][j];
ip = i <= oNorm ? power1[i] : 2.5;
jp = j <= oNorm ? power1[j] : 2.5;
p = (rAspInf[k]*(sqrt)(ip*jp)*
(1.0-RAbs((real)(grid->v[i][j]))/60.0/GetOrb(i, j, k)));
if (us.fParallel)
p = p * PowerPar;
DrawColor(kAspB[grid->n[i][j]]);
if (!gs.fAlt) {
DrawDash(cx+POINT1(unitx, 0.48, PX(xplanet[i])),
cy+POINT1(unity, 0.48, PY(xplanet[i])),
cx+POINT1(unitx, 0.48, PX(xplanet[j])),
cy+POINT1(unity, 0.48, PY(xplanet[j])),
(int)(RAbs((real)(grid->v[i][j]))/(GetOrb(i,j,grid->n[i][j]))/15.0));
} else {
if (p/SolidAspect <= 0.05)
n = 20;
else
n = (int)(SolidAspect/p);
DrawDash(cx+POINT1(unitx, 0.48, PX(xplanet[i])),
cy+POINT1(unity, 0.48, PY(xplanet[i])),
cx+POINT1(unitx, 0.48, PX(xplanet[j])),
cy+POINT1(unity, 0.48, PY(xplanet[j])),
n);
}
}
}
for (j = cObj; j >= 1; j--)
for (i = j-1; i >= 0; i--)
if (grid->n[i][j] && FProper(i) && FProper(j)) {
k = grid->n[i][j];
ip = i <= oNorm ? power1[i] : 2.5;
jp = j <= oNorm ? power1[j] : 2.5;
p = (rAspInf[k]*(sqrt)(ip*jp)*
(1.0-RAbs((real)(grid->v[i][j]))/60.0/GetOrb(i, j, k)));
if (us.fParallel)
p = p * PowerPar ;
if (FCusp(i) && FCusp(j))
continue;
if (k == aOpp || k == aSqu || k == aSSq || k == aSes)
STension -= ccc*p;
if (k == aSex || k == aTri || k == aSSx || k == aInc)
SHarmon += ccc*p;
if (k == aCon)
SConjunct += ccc*p;
SSumma += ccc*p;
}
SChart = SHarmon + STension;
/* Go draw sidebar with chart information and positions if need be. */
DrawInfo();
}
/* Draw an astro-graph chart on a map of the world, i.e. the draw the */
/* Ascendant, Descendant, Midheaven, and Nadir lines corresponding to the */
/* time in the chart. This chart is done when the -L switch is combined */
/* with the -X switch. */
void XChartAstroGraph()
{
real planet1[objMax], planet2[objMax],
end1[cObj*2+1], end2[cObj*2+1],
symbol1[cObj*2+1], symbol2[cObj*2+1],
lon, longm, x, y, z, ad, oa, am, od, dm, lat;
int unit = gi.nScale, fStroke, lat1 = -60, lat2 = 75, y1, y2, xold1, xold2,
i, j, k, l;
lon = RealCoord(Lon);
/* Erase top and bottom parts of map. We don't draw the astro-graph lines */
/* above certain latitudes, and this gives us room for glyph labels, too. */
y1 = (91-lat1)*gi.nScale;
y2 = (91-lat2)*gi.nScale;
DrawColor(gi.kiOff);
DrawBlock(0, 1, gs.xWin-1, y2-1);
DrawBlock(0, y1+1, gs.xWin-1, gs.yWin-2);
DrawColor(gi.kiLite);
DrawDash(0, gs.yWin/2, gs.xWin-2, gs.yWin/2, 4); /* Draw equator. */
DrawColor(gi.kiOn);
DrawLine(1, y2, gs.xWin-2, y2);
DrawLine(1, y1, gs.xWin-2, y1);
for (i = 1; i <= cObj*2; i++)
end1[i] = end2[i] = -rLarge;
/* Draw small hatches every 5 degrees along edges of world map. */
DrawColor(gi.kiLite);
for (i = lat1; i <= lat2; i += 5) {
j = (91-i)*gi.nScale;
k = (2+(i%10 == 0)+2*(i%30 == 0))*gi.nScaleT;
DrawLine(1, j, k, j);
DrawLine(gs.xWin-2, j, gs.xWin-1-k, j);
}
for (i = -180; i < 180; i += 5) {
j = (180-i)*gi.nScale;
k = (2+(i%10 == 0)+2*(i%30 == 0)+(i%90 == 0))*gi.nScaleT;
DrawLine(j, y2+1, j, y2+k);
DrawLine(j, y1-1, j, y1-k);
}
if (us.fLatitudeCross) {
DrawColor(kRainbowB[7]);
i = (int)((91.0-Lat)*(real)gi.nScale);
DrawLine(0, i, gs.xWin-1, i);
}
#ifdef MATRIX
/* Calculate zenith locations of each planet. */
for (i = 1; i <= cObj; i++) if (!ignore[i] || i == oMC) {
planet1[i] = RFromD(Tropical(i == oMC ? is.MC : planet[i]));
planet2[i] = RFromD(planetalt[i]);
EclToEqu(&planet1[i], &planet2[i]);
}
/* Draw the Midheaven lines and zenith location markings. */
if (lon < 0.0)
lon += rDegMax;
for (i = 1; i <= cObj; i++) if (FProper(i)) {
x = planet1[oMC]-planet1[i];
if (x < 0.0)
x += 2.0*rPi;
if (x > rPi)
x -= 2.0*rPi;
z = lon+DFromR(x);
if (z > rDegHalf)
z -= rDegMax;
j = (int)(Mod(rDegHalf-z+gs.nRot)*(real)gi.nScale);
DrawColor(kElemB[eEar]);
DrawLine(j, y1+unit*4, j, y2-unit*1);
end2[i*2-1] = (real)j;
y = DFromR(planet2[i]);
k = (int)((91.0-y)*(real)gi.nScale);
if (FBetween((int)y, lat1, lat2)) {
DrawColor(gi.kiLite);
DrawBlock(j-gi.nScaleT, k-gi.nScaleT, j+gi.nScaleT, k+gi.nScaleT);
DrawColor(gi.kiOff);
DrawBlock(j, k, j, k);
}
/* Draw Nadir lines assuming we aren't in bonus chart mode. */
if (!gs.fAlt) {
j += 180*gi.nScale;
if (j > gs.xWin-2)
j -= (gs.xWin-2);
end1[i*2-1] = (real)j;
DrawColor(kElemB[eWat]);
DrawLine(j, y1+unit*2, j, y2-unit*2);
}
}
/* Now, normally, unless we are in bonus chart mode, we will go on to draw */
/* the Ascendant and Descendant lines here. */
longm = RFromD(Mod(DFromR(planet1[oMC])+lon));
if (!gs.fAlt) for (i = 1; i <= cObj; i++) if (FProper(i)) {
xold1 = xold2 = -1000;
/* Hack: Normally we draw the Ascendant and Descendant line segments */
/* simultaneously. However, for the PostScript and metafile stroke */
/* graphics, this will case the file to get inordinately large due to */
/* the constant thrashing between the Asc and Desc colors. Hence for */
/* these charts only, we'll do two passes for Asc and Desc. */
fStroke = gs.fPS || gs.fMeta;
for (l = 0; l <= fStroke; l++)
for (lat = (real)lat1; lat <= (real)lat2;
lat += 1.0/(real)(gi.nScale/gi.nScaleT)) {
/* First compute and draw the current segment of Ascendant line. */
j = (int)((91.0-lat)*(real)gi.nScale);
ad = RTan(planet2[i])*RTan(RFromD(lat));
if (ad*ad > 1.0)
ad = rLarge;
else {
ad = RAsin(ad);
oa = planet1[i]-ad;
if (oa < 0.0)
oa += 2.0*rPi;
am = oa-rPiHalf;
if (am < 0.0)
am += 2.0*rPi;
z = longm-am;
if (z < 0.0)
z += 2.0*rPi;
if (z > rPi)
z -= 2.0*rPi;
z = DFromR(z);
k = (int)(Mod(rDegHalf-z+gs.nRot)*(real)gi.nScale);
if (!fStroke || !l) {
DrawColor(kElemB[eFir]);
DrawWrap(xold1, j+gi.nScaleT, k, j, 1, gs.xWin-2);
if (lat == (real)lat1) { /* Line segment */
DrawLine(k, y1, k, y1+unit*4); /* pointing to */
end2[i*2] = (real)k; /* Ascendant. */
}
} else if (lat == (real)lat1)
end2[i*2] = (real)k;
xold1 = k;
}
/* The curving Ascendant and Descendant lines actually touch at low or */
/* high latitudes. Sometimes when we start out, a particular planet's */
/* lines haven't appeared yet, i.e. we are scanning at a latitude */
/* where our planet's lines don't exist. If this is the case, then */
/* when they finally do start, draw a thin horizontal line connecting */
/* the Ascendant and Descendant lines so they don't just start in */
/* space. Note that these connected lines aren't labeled with glyphs. */
if (ad == rLarge) {
if (xold1 >= 0) {
if (!fStroke || !l) {
DrawColor(gi.kiGray);
DrawWrap(xold1, j+1, xold2, j+1, 1, gs.xWin-2);
}
lat = rDegQuad;
}
} else {
/* Then compute and draw corresponding segment of Descendant line. */
od = planet1[i]+ad;
dm = od+rPiHalf;
z = longm-dm;
if (z < 0.0)
z += 2.0*rPi;
if (z > rPi)
z -= 2.0*rPi;
z = DFromR(z);
k = (int)(Mod(rDegHalf-z+gs.nRot)*(real)gi.nScale);
if (xold2 < 0 && lat > (real)lat1 && (!fStroke || l)) {
DrawColor(gi.kiGray);
DrawWrap(xold1, j, k, j, 1, gs.xWin-2);
}
if (!fStroke || l) {
DrawColor(kElemB[eAir]);
DrawWrap(xold2, j+gi.nScaleT, k, j, 1, gs.xWin-2);
if (lat == (real)lat1) /* Line segment */
DrawLine(k, y1, k, y1+unit*2); /* pointing to */
} /* Descendant. */
xold2 = k;
}
}
#endif /* MATRIX */
/* Draw segments pointing to top of Ascendant and Descendant lines. */
if (ad != rLarge) {
DrawColor(kElemB[eFir]);
DrawLine(xold1, y2, xold1, y2-unit*1);
DrawColor(kElemB[eAir]);
DrawLine(k, y2, k, y2-unit*2);
end1[i*2] = (real)k;
}
}
DrawColor(kMainB[8]);
i = (int)((181.0-Lon)*(real)gi.nScale);
j = (int)((91.0-Lat)*(real)gi.nScale);
if (us.fLatitudeCross)
DrawSpot(i, j);
else
DrawPoint(i, j);
/* Determine where to draw the planet glyphs. We have four sets of each */
/* planet - each planet's glyph appearing in the chart up to four times - */
/* one for each type of line. The Midheaven and Ascendant lines are always */
/* labeled at the bottom of the chart, while the Nadir and Midheaven lines */
/* at the top. Therefore we need to place two sets of glyphs, twice. */
for (i = 1; i <= cObj*2; i++) {
symbol1[i] = end1[i];
symbol2[i] = end2[i];
}
FillSymbolLine(symbol1);
FillSymbolLine(symbol2);
/* Now actually draw the planet glyphs. */
for (i = 1; i <= cObj*2; i++) {
j = (i+1)/2;
if (FProper(j)) {
if ((gi.xTurtle = (int)symbol1[i]) > 0 && gs.fLabel) {
DrawColor(ret[j] < 0.0 ? gi.kiGray : gi.kiOn);
DrawDash((int)end1[i], y2-unit*2, (int)symbol1[i], y2-unit*4,
(ret[i] < 0.0 ? 1 : 0) - gs.fColor);
DrawObject(j, gi.xTurtle, y2-unit*10);
}
if ((gi.xTurtle = (int)symbol2[i]) > 0) {
DrawColor(ret[j] < 0.0 ? gi.kiGray : gi.kiOn);
DrawDash((int)end2[i], y1+unit*4, (int)symbol2[i], y1+unit*8,
(ret[i] < 0.0 ? 1 : 0) - gs.fColor);
DrawObject(j, gi.xTurtle, y1+unit*14);
DrawTurtle(szDrawObject[i & 1 ? oMC : oAsc], (int)symbol2[i],
y1+unit*24-gi.nScaleT);
}
}
}
}
/* Draw an aspect and midpoint grid in the window, with planets labeled down */
/* the diagonal. This chart is done when the -g switch is combined with the */
/* -X switch. The chart always has a certain number of cells; hence based */
/* how the restrictions are set up, there may be blank columns and rows, */
/* or else only the first number of unrestricted objects will be included. */
void XChartGrid()
{
byte sz[cchSzDef];
int unit, siz, x, y, i, j, k;
KI c;
unit = CELLSIZE*gi.nScale; siz = gs.nGridCell*unit;
if (!FCreateGrid(gs.fAlt))
return;
/* Loop through each cell in each row and column of grid. */
for (y = 1, j = oEar-1; y <= gs.nGridCell; y++) {
do {
j++;
} while (!FProper(j) && j <= cObj);
DrawColor(gi.kiGray);
DrawDash(0, y*unit, siz, y*unit, !gs.fColor);
DrawDash(y*unit, 0, y*unit, siz, !gs.fColor);
if (j <= cObj) for (x = 1, i = oEar-1; x <= gs.nGridCell; x++) {
do {
i++;
} while (!FProper(i) && i <= cObj);
if (i <= cObj) {
gi.xTurtle = x*unit-unit/2;
gi.yTurtle = y*unit-unit/2 -
(gi.nScale/gi.nScaleT > 2 ? 5*gi.nScaleT : 0);
k = grid->n[i][j];
/* If this is an aspect cell, draw glyph of aspect in effect. */
if (gs.fAlt ? x > y : x < y) {
if (k) {
DrawColor(c = kAspB[k]);
DrawAspect(k, gi.xTurtle, gi.yTurtle);
}
/* If this is a midpoint cell, draw glyph of sign of midpoint. */
} else if (gs.fAlt ? x < y : x > y) {
DrawColor(c = kSignB(grid->n[i][j]));
DrawSign(grid->n[i][j], gi.xTurtle, gi.yTurtle);
/* For cells on main diagonal, draw glyph of planet. */
} else {
DrawColor(gi.kiLite);
DrawEdge((y-1)*unit, (y-1)*unit, y*unit, y*unit);
DrawObject(i, gi.xTurtle, gi.yTurtle);
}
/* When the scale size is 300+, we can print text in each cell: */
if (gi.nScale/gi.nScaleT > 2 && gs.fLabel) {
k = abs(grid->v[i][j]);
/* For the aspect portion, print the orb in degrees and minutes. */
if (gs.fAlt ? x > y : x < y) {
if (grid->n[i][j])
sprintf(sz, "%c%d %02d'", k != grid->v[i][j] ? (us.fAppSep ?
'a' : '-') : (us.fAppSep ? 's' : '+'), k/60, k%60);
else
sprintf(sz, "");
/* For the midpoint portion, print the degrees and minutes. */
} else if (gs.fAlt ? x < y : x > y)
sprintf(sz, "%2d %02d'", k/60, k%60);
/* For the main diagonal, print degree and sign of each planet. */
else {
c = kSignB(grid->n[i][j]);
sprintf(sz, "%c%c%c %02d", chSig3(grid->n[i][j]), k);
}
DrawColor(c);
DrawSz(sz, x*unit-unit/2, y*unit-3*gi.nScaleT, dtBottom);
}
}
}
}
}
/* Draw the local horizon, and draw in the planets where they are at the */
/* time in question, as done when the -Z is combined with the -X switch. */
void XChartHorizon()
{
real lat, lonz[objMax], latz[objMax], azi[objMax], alt[objMax];
int x[objMax], y[objMax], m[objMax], n[objMax],
cx, cy, unit, x1, y1, x2, y2, xs, ys, i, j, k, l;
byte sz[2];
real lonMC, lon1, lat1, alt1, azi1;
int xx1, yy1;
unit = Max(12, 6*gi.nScale);
x1 = unit; y1 = unit; x2 = gs.xWin-1-unit; y2 = gs.yWin-1-unit;
unit = 12*gi.nScale;
xs = x2-x1; ys = y2-y1; cx = (x1+x2)/2; cy = (y1+y2)/2;
/* Make a slightly smaller rectangle within the window to draw the planets */
/* in. Make segments on all four edges marking 5 degree increments. */
DrawColor(gi.kiLite);
for (i = 5; i < 180; i += 5) {
j = y1+(int)((real)i*(real)ys/rDegHalf);
k = (2+(i%10 == 0)+2*(i%30 == 0))*gi.nScaleT;
DrawLine(x1+1, j, x1+1+k, j);
DrawLine(x2-1, j, x2-1-k, j);
}
sz[1] = chNull;
for (i = 5; i < nDegMax; i += 5) {
j = x1+(int)((real)i*(real)xs/rDegMax);
k = (2+(i%10 == 0)+2*(i%30 == 0))*gi.nScaleT;
DrawLine(j, y1+1, j, y1+1+k);
DrawLine(j, y2-1, j, y2-1-k);
if (i % 90 == 0) {
*sz = *szDir[i/90 & 3];
DrawSz(sz, j, y1-2*gi.nScaleT, dtBottom);
}
}
/* Draw vertical lines dividing our rectangle into four areas. In our */
/* local space chart, the middle line represents due south, the left line */
/* due east, the right line due west, and the edges due north. A fourth */
/* horizontal line divides that which is above and below the horizon. */
DrawColor(gi.kiGray);
DrawDash(cx, y1, cx, y2, 1);
DrawDash((cx+x1)/2, y1, (cx+x1)/2, y2, 1);
DrawDash((cx+x2)/2, y1, (cx+x2)/2, y2, 1);
DrawColor(gi.kiOn);
DrawEdge(x1, y1, x2, y2);
DrawDash(x1, cy, x2, cy, 1);
/* Calculate the local horizon coordinates of each planet. First convert */
/* zodiac position and declination to zenith longitude and latitude. */
lat = RFromD(RealCoord(Lat));
for (i = 0; i <= cObj; i++) if (!ignore[i] || i == oMC) {
if (us.fEquator) {
lonz[i] = RFromD(planet[i]);
latz[i] = RFromD(planetalt[i]);
} else {
lonz[i] = RFromD(Tropical(planet[i]));
latz[i] = RFromD(planetalt[i]);
EclToEqu(&lonz[i], &latz[i]);
}
}
if (PolarMCflip && hRevers)
lonMC = Mod(lonz[oMC]+rPi);
else
lonMC = lonz[oMC];
if (!fEquator)
for (i = 0; i < 180; i++) {
lon1 = RFromD(2*(real)i);
lat1 = 0.0;
lon1 = RFromD(Mod(DFromR(lonMC-lon1+rPiHalf)));
EquToLocal(&lon1, &lat1, rPiHalf-lat);
azi1 = rDegMax-DFromR(lon1); alt1 = DFromR(lat1);
xx1 = x1+(int)((real)xs*(Mod(rDegQuad-azi1))/rDegMax+rRound);
yy1 = y1+(int)((real)ys*(rDegQuad-alt1)/rDegHalf+rRound);
DrawColor(kLtGray);
DrawPoint(xx1, yy1);
}
for (i = 0; i < 180; i++) {
lon1 = 2*(real)i;
lat1 = 0.0;
lon1 = RFromD(Tropical(lon1));
EclToEqu(&lon1, &lat1);
lon1 = RFromD(Mod(DFromR(lonMC-lon1+rPiHalf)));
if (!fEquator)
EquToLocal(&lon1, &lat1, rPiHalf-lat);
azi1 = rDegMax-DFromR(lon1); alt1 = DFromR(lat1);
xx1 = x1+(int)((real)xs*(Mod(rDegQuad-azi1))/rDegMax+rRound);
yy1 = y1+(int)((real)ys*(rDegQuad-alt1)/rDegHalf+rRound);
DrawColor(kDkGray);
if (RFract((real)i/15.0) <= 0.0 && i != 0)
DrawColor(kWhite);
if (!i)
DrawColor(kRed);
if (i == 90)
DrawColor(kGreen);
DrawPoint(xx1, yy1);
}
for (i = 0; i <= cObj; i++) if (FProper(i)) {
lonz[i] = RFromD(Mod(DFromR(lonMC-lonz[i]+rPiHalf)));
if (!fEquator)
EquToLocal(&lonz[i], &latz[i], rPiHalf-lat);
azi[i] = rDegMax-DFromR(lonz[i]); alt[i] = DFromR(latz[i]);
x[i] = x1+(int)((real)xs*(Mod(rDegQuad-azi[i]))/rDegMax+rRound);
y[i] = y1+(int)((real)ys*(rDegQuad-alt[i])/rDegHalf+rRound);
m[i] = x[i]; n[i] = y[i]+unit/2;
}
/* As in the DrawGlobe() routine, we now determine where to draw the */
/* glyphs in relation to the actual points, so that the glyphs aren't */
/* drawn on top of each other if possible. Again, we assume that we'll */
/* put the glyph right under the point, unless there would be some */
/* overlap and the above position is better off. */
for (i = 0; i <= cObj; i++) if (FProper(i)) {
k = l = gs.xWin+gs.yWin;
for (j = 1; j < i; j++) if (FProper(j)) {
k = Min(k, abs(m[i]-m[j])+abs(n[i]-n[j]));
l = Min(l, abs(m[i]-m[j])+abs(n[i]-unit-n[j]));
}
if (k < unit || l < unit)
if (k < l)
n[i] -= unit;
}
for (i = cObj; i >= 0; i--) if (FProper(i)) /* Draw planet's glyph. */
DrawObject(i, m[i], n[i]);
for (i = cObj; i >= 0; i--) if (FProper(i)) {
DrawColor(kObjB[i]);
if (!gs.fAlt)
DrawPoint(x[i], y[i]); /* Draw small or large dot */
else /* near glyph indicating */
DrawSpot(x[i], y[i]); /* exact local location. */
}
}
/* Draw the local horizon, and draw in the planets where they are at the */
/* time in question. This chart is done when the -Z0 is combined with the */
/* -X switch. This is an identical function to XChartHorizon(); however, */
/* that routine's chart is entered on the horizon and meridian. Here we */
/* center the chart around the center of the sky straight up from the */
/* local horizon, with the horizon itself being an encompassing circle. */
void XChartHorizonSky()
{
real lat, rx, ry, s,
lonz[objMax], latz[objMax], azi[objMax], alt[objMax];
int x[objMax], y[objMax], m[objMax], n[objMax],
cx, cy, unit, x1, y1, x2, y2, xs, ys, i, j, k, l;
real lonMC, coef;
int ccx, ccy;
unit = Max(12, 6*gi.nScale);
x1 = unit; y1 = unit; x2 = gs.xWin-1-unit; y2 = gs.yWin-1-unit;
unit = 12*gi.nScale;
xs = x2-x1; ys = y2-y1; cx = (x1+x2)/2; cy = (y1+y2)/2;
/* Draw a circle in window to indicate horizon line, lines dividing */
/* the window into quadrants to indicate n/s and w/e meridians, and */
/* segments on these lines marking 5 degree increments. */
coef = 1.8;
DrawColor(gi.kiGray);
DrawDash(cx, y1, cx, y2, 1);
DrawDash(x1, cy, x2, cy, 1);
DrawColor(gi.kiLite);
for (i = -160; i <= 160; i += 5) {
k = (2+(i/10*10 == i ? 1 : 0)+(i/30*30 == i ? 2 : 0))*gi.nScaleT;
s = 1.0/(rDegQuad*coef);
j = cy+(int)(s*ys/2*i);
DrawLine(cx-k, j, cx+k, j);
j = cx+(int)(s*xs/2*i);
DrawLine(j, cy-k, j, cy+k);
}
DrawSz(gs.fAlt ? "Z" : "N", cx, y1-2*gi.nScaleT, dtBottom);
DrawSz("E", x1/2, cy+2*gi.nScaleT, dtCent);
DrawSz("W", (gs.xWin+x2)/2, cy+2*gi.nScaleT, dtCent);
if (!gs.fText)
DrawSz(gs.fAlt ? "N" : "S", cx, gs.yWin-3*gi.nScaleT, dtBottom);
rx = xs/2/coef; ry = ys/2/coef;
DrawColor(gi.kiOn);
DrawEdge(x1, y1, x2, y2);
DrawCircle(cx, cy, (int)rx, (int)ry);
for (i = 0; i < nDegMax; i += 5) {
k = (2+(i/10*10 == i ? 1 : 0)+(i/30*30 == i ? 2 : 0))*gi.nScaleT;
DrawLine(cx+(int)((rx-k)*RCosD((real)i)), cy+(int)((ry-k)*RSinD((real)i)),
cx+(int)((rx+k)*RCosD((real)i)), cy+(int)((ry+k)*RSinD((real)i)));
}
/* Draw outhern dashed circle, which represents nadir point, which is */
/* now on screen in corners, because I rescaled picture. V.A. */
rx = xs/coef; ry = ys/coef;
for (i = 0; i < nDegMax; i ++) {
ccx = (int)(rx*RCosD((real)i)) + cx;
ccy = (int)(ry*RSinD((real)i)) + cy;
if (ccx < x1 || ccx > x2 || ccy < y1 || ccy > y2)
continue;
DrawPoint(ccx, ccy);
}
for (i = 0; i < nDegMax; i += 5) {
if (i < 27 || FBetween(i, 62, 118) || FBetween(i, 152,208) ||
FBetween(i, 242, 298) || i > 333)
continue;
k = (1+(i/10*10 == i ? 1 : 0)+(i/30*30 == i ? 1 : 0))*gi.nScaleT;
DrawLine(cx+(int)((rx-k)*RCosD((real)i)), cy+(int)((ry-k)*RSinD((real)i)),
cx+(int)((rx+k)*RCosD((real)i)), cy+(int)((ry+k)*RSinD((real)i)));
}
rx = xs/2/coef; ry = ys/2/coef;
/* Calculate the local horizon coordinates of each planet. First convert */
/* zodiac position and declination to zenith longitude and latitude. */
lat = RFromD(RealCoord(Lat));
for (i = 0; i <= cObj; i++) if (!ignore[i] || i == oMC) {
if (us.fEquator) {
lonz[i] = RFromD(planet[i]);
latz[i] = RFromD(planetalt[i]);
} else {
lonz[i] = RFromD(Tropical(planet[i]));
latz[i] = RFromD(planetalt[i]);
EclToEqu(&lonz[i], &latz[i]);
}
}
if (PolarMCflip && hRevers)
lonMC = Mod(lonz[oMC]+rPi);
else
lonMC = lonz[oMC];
for (i = 0; i <= cObj; i++) if (FProper(i) && i != oMC) {
lonz[i] = RFromD(Mod(DFromR(lonMC-lonz[i]+rPiHalf)));
if (!fEquator)
EquToLocal(&lonz[i], &latz[i], rPiHalf-lat);
azi[i] = rDegMax-DFromR(lonz[i]);
/* In bonus mode convert from altitude/azimuth coordinates to */
/* prime vertical coordinates that we'll print instead. */
if (gs.fAlt) {
alt[i] = DFromR(latz[i]);
azi[i] = RFromD(azi[i]); alt[i] = RFromD(alt[i]);
CoorXform(&azi[i], &alt[i], rPiHalf);
azi[i] = rDegMax - DFromR(azi[i]);
alt[i] = rDegQuad + DFromR(alt[i]);
} else {
alt[i] = rDegQuad-DFromR(latz[i]);
}
s = alt[i]/rDegQuad;
x[i] = cx+(int)(rx*s*RCosD(rDegHalf+azi[i])+rRound);
y[i] = cy+(int)(ry*s*RSinD(rDegHalf+azi[i])+rRound);
if (!FOnWin(x[i], y[i]))
x[i] = -1000;
m[i] = x[i]; n[i] = y[i]+unit/2;
}
/* As in the DrawGlobe() routine, we now determine where to draw the */
/* glyphs in relation to the actual points, so that the glyphs aren't */
/* drawn on top of each other if possible. Again, we assume that we'll */
/* put the glyph right under the point, unless there would be some */
/* overlap and the above position is better off. */
for (i = 0; i <= cObj; i++) if (FProper(i)) {
k = l = gs.xWin+gs.yWin;
for (j = 0; j < i; j++) if (FProper(j)) {
k = Min(k, abs(m[i]-m[j])+abs(n[i]-n[j]));
l = Min(l, abs(m[i]-m[j])+abs(n[i]-unit-n[j]));
}
if (k < unit || l < unit)
if (k < l)
n[i] -= unit;
}
for (i = cObj; i >= 0; i--) if (m[i] >= x1 && FProper(i)) /* Draw glyph. */
DrawObject(i, m[i], n[i]);
for (i = cObj; i >= 0; i--) if (x[i] >= y1 && FProper(i)) {
DrawColor(kObjB[i]);
DrawSpot(x[i], y[i]);
}
}
/* Draw a chart depicting an aerial view of the solar system in space, with */
/* all the planets drawn around the Sun, and the specified central planet */
/* in the middle, as done when the -S is combined with the -X switch. */
void XChartOrbit()
{
int x[objMax], y[objMax], m[objMax], n[objMax],
cx = gs.xWin / 2, cy = gs.yWin / 2, unit, x1, y1, x2, y2, i, j, k, l;
real sx, sy, sz = 30.0, xp, yp, a;
unit = Max(gs.fText*12, 6*gi.nScale);
x1 = unit; y1 = unit; x2 = gs.xWin-1-unit; y2 = gs.yWin-1-unit;
unit = 12*gi.nScale;
/* Determine the scale of the chart. For a scale size of 400+, make the */
/* graphic 1 AU in radius (just out to Earth's orbit). For 300, make */
/* the chart 6 AU in radius (enough for inner planets out to asteroid */
/* belt). For a scale of 200, make window 30 AU in radius (enough for */
/* planets out to Neptune). For scale of 100, make it 90 AU in radius */
/* (enough for all planets including the orbits of the uranians.) */
if (gi.nScale/gi.nScaleT < 2)
sz = 90.0;
else if (gi.nScale/gi.nScaleT == 3)
sz = 6.0;
else if (gi.nScale/gi.nScaleT > 3)
sz = 1.0;
sx = (real)(cx-x1)/sz; sy = (real)(cy-y1)/sz;
for (i = 0; i <= oNorm; i++) if (FProper(i)) {
xp = spacex[i]; yp = spacey[i];
x[i] = cx-(int)(xp*sx); y[i] = cy+(int)(yp*sy);
m[i] = x[i]; n[i] = y[i]+unit/2;
}
/* As in the DrawGlobe() routine, we now determine where to draw the */
/* glyphs in relation to the actual points, so that the glyphs aren't */
/* drawn on top of each other if possible. Again, we assume that we'll */
/* put the glyph right under the point, unless there would be some */
/* overlap and the above position is better off. */
for (i = 0; i <= oNorm; i++) if (FProper(i)) {
k = l = gs.xWin+gs.yWin;
for (j = 0; j < i; j++) if (FProper(j)) {
k = Min(k, abs(m[i]-m[j])+abs(n[i]-n[j]));
l = Min(l, abs(m[i]-m[j])+abs(n[i]-unit-n[j]));
}
if (k < unit || l < unit)
if (k < l)
n[i] -= unit;
}
/* Draw the 12 sign boundaries from the center body to edges of screen. */
a = Mod(DFromR(Angle(spacex[oJup], spacey[oJup]))-planet[oJup]);
DrawColor(gi.kiGray);
for (i = 0; i < cSign; i++) {
k = cx+2*(int)((real)cx*RCosD((real)i*30.0+a));
l = cy+2*(int)((real)cy*RSinD((real)i*30.0+a));
DrawClip(cx, cy, k, l, x1, y1, x2, y2, 1);
}
DrawColor(gi.kiLite);
DrawEdge(x1, y1, x2, y2);
for (i = oNorm; i >= 0; i--)
if (FProper(i) && FInRect(m[i], n[i], x1, y1, x2, y2))
DrawObject(i, m[i], n[i]);
for (i = oNorm; i >= 0; i--)
if (FProper(i) && FInRect(x[i], y[i], x1, y1, x2, y2)) {
DrawColor(kObjB[i]);
if (!gs.fAlt || i > oNorm)
DrawPoint(x[i], y[i]); /* Draw small or large dot */
else /* near glyph indicating */
DrawSpot(x[i], y[i]); /* exact orbital location. */
}
}
/* Draw a chart showing the 36 Gauquelin sectors, with all the planets */
/* positioned in their appropriate sector (and at the correct fracton */
/* across the sector) as done when the -l is combined with the -X switch. */
void XChartSector()
{
real xplanet[objMax], symbol[objMax];
byte sz[3];
int cx, cy, i, j, k;
real unitx, unity, px, py, temp;
byte ignoreT[objMax+1];
for (i = 1; i <= objMax; i++)
ignoreT[i] = ignore[i];
if (gs.fText && !us.fVelocity)
gs.xWin -= xSideT;
cx = gs.xWin/2 - 1; cy = gs.yWin/2 - 1;
unitx = (real)cx; unity = (real)cy;
/* Draw lines across the whole chart at the four angles. */
DrawColor(gi.kiLite);
DrawDash(cx+POINT1(unitx, 0.99, PX(0.0)),
cy+POINT1(unity, 0.99, PY(0.0)),
cx+POINT1(unitx, 0.99, PX(180.0)),
cy+POINT1(unity, 0.99, PY(180.0)), !gs.fColor);
DrawDash(cx+POINT1(unitx, 0.99, PX(90.0)),
cy+POINT1(unity, 0.99, PY(90.0)),
cx+POINT1(unitx, 0.99, PX(270.0)),
cy+POINT1(unity, 0.99, PY(270.0)), !gs.fColor);
/* Draw circles and radial lines delineating the 36 sectors. */
DrawColor(gi.kiOn);
for (i = 0; i < nDegMax; i += 10) {
px = PX((real)i); py = PY((real)i);
DrawLine(cx+POINT1(unitx, 0.81, px), cy+POINT1(unity, 0.81, py),
cx+POINT2(unitx, 0.95, px), cy+POINT2(unity, 0.95, py));
}
DrawCircle(cx, cy, (int)(unitx*0.95+rRound), (int)(unity*0.95+rRound));
DrawCircle(cx, cy, (int)(unitx*0.81+rRound), (int)(unity*0.81+rRound));
/* Label the 36 sectors, with plus zones in red and normal in dark green. */
k = pluszone[cSector];
for (i = 1; i <= cSector; i++) {
j = pluszone[i];
DrawColor(j ? kRainbowB[1] : kMainB[5]);
sprintf(sz, "%d", i);
DrawSz(sz, cx+POINT1(unitx, 0.88, PX((real)(i*10+175)))+
(FBetween(i, 12, 19) ? -(gi.nScale/* *gi.nScaleT*/) : 0),
cy+POINT1(unity, 0.88, PY((real)(i*10+175)))+(gi.nScale/* *gi.nScaleT*/),
dtCent | dtScale);
sprintf(sz, "%c", j ? '+' : '-');
DrawSz(sz, cx+POINT1(unitx, 0.97, PX((real)(i*10+175))),
cy+POINT1(unity, 0.97, PY((real)(i*10+175)))+gi.nScaleT*2, dtCent);