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- /* -*- C -*-
- ** Astrolog (Version 4.40) File: xcharts2.c
- **
- ** IMPORTANT NOTICE: The graphics database and chart display routines
- ** used in this program are Copyright (C) 1991-1995 by Walter D. Pullen
- ** (astara@u.washington.edu). 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
- ** (brianw@sounds.wa.com). Conditions are identical to those above.
- **
- ** The extended accurate 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@azur.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.
- **
- ** 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 1/29/1995.
- */
-
- /* $VER: $Id: xcharts2.c,v 1.2 1995/07/02 22:22:38 tf Exp $ */
-
- #include "astrolog.h"
-
-
- #ifdef GRAPH
- /*
- ******************************************************************************
- ** Chart Graphics Utility Procedures.
- ******************************************************************************
- */
-
- /* Return whether the specified object should be displayed in the current */
- /* graphics chart type. For example, don't include the Moon in the solar */
- /* system charts, don't include house cusps in astro-graph, and so on. */
-
- bool FProper(i)
- int i;
- {
- bool f;
-
- if (gi.nMode == gHorizon ||
- gi.nMode == gEphemeris || fMap ||
- gi.nMode == gGlobe ||
- gi.nMode == gPolar) /* Astro-graph / ephem charts */
- f = FObject(i);
-
- else if (gi.nMode == gOrbit) /* Solar system charts */
- f = FObject(i) && (i != oMoo || (us.fPlacalc && us.objCenter < oMoo));
-
- else
- f = fTrue;
-
- return f && !ignore[i]; /* Check restriction status */
- }
-
-
- /* Adjust an array of zodiac positions so that no two positions are within */
- /* a certain orb of each other. This is used by the wheel drawing chart */
- /* routines in order to make sure that we don't draw any planet glyphs on */
- /* top of each other. We'll later draw the glyphs at the adjusted positions. */
-
- void FillSymbolRing(symbol)
- real *symbol;
- {
- real orb = DEFORB * 256.0 / (real)gs.yWin * (real)gi.nScale;
-
- real k1, k2, temp;
- int i, j, k = 1, l;
-
- /* Keep adjusting as long as we can still make changes, or until we do 'n' */
- /* rounds. (With many objects, there just may not be enough room for all.) */
-
- for (l = 0; k && l < us.nDivision*2; l++)
- {
- k = 0; /* becomes != 0 if we made changes */
-
- for (i = 1; i <= cObj; i++) if (FProper(i))
- {
- /* For each object, determine who is closest on either side. */
-
- k1 = rLarge;
- k2 = -rLarge;
-
- for (j = 1; j <= cObj; j++) if (FProper(j) && i != j)
- {
- temp = symbol[j] - symbol[i]; /* Gradabstand */
-
- if (RAbs(temp) > rDegHalf)
- temp -= rDegMax * RSgn(temp);
-
- if (temp < k1 && temp >= 0.0)
- k1 = temp;
-
- else if (temp > k2 && temp <= 0.0)
- k2 = temp;
- }
-
- /* If an object's too close on one side, then we move to the other. */
-
- if (k2 > -orb && k1 > orb) /* collision from the left */
- {
- k = 1; symbol[i] = Mod( symbol[i] + orb*0.51 + k2*0.49 );
- }
- else if (k1 < orb && k2 < -orb) /* collision from the right */
- {
- k = 1; symbol[i] = Mod( symbol[i] - orb*0.51 + k1*0.49 );
-
- /* If we are bracketed by close objects on both sides, then let's move */
- /* to the midpoint, so we are as far away as possible from either one. */
-
- }
- else if (k2 > -orb && k1 < orb)
- {
- /* Problem: 3 symbols at an equal position will not be moved! */
- k = 1; symbol[i] = Mod( symbol[i] + (k1+k2) * 0.5 );
- }
- }
- }
- }
-
-
- /* Adjust an array of longitude positions so that no two are within a */
- /* certain orb of each other. This is used by the astro-graph routine to */
- /* make sure we don't draw any planet glyphs marking the lines on top of */
- /* each other. This is almost identical to the FillSymbolRing() routine */
- /* used by the wheel charts; however, there the glyphs are placed in a */
- /* continuous ring, while here we have the left and right screen edges. */
- /* Also, here we are placing two sets of planets at the same time. */
-
- void FillSymbolLine(symbol)
- real *symbol;
- {
- real orb = DEFORB*1.35*(real)gi.nScale, max = rDegMax, k1, k2, temp;
- int i, j, k = 1, l;
-
- if (gi.nMode != gEphemeris)
- max *= (real)gi.nScale;
- else
- orb *= rDegMax/(real)gs.xWin;
-
- /* Keep adjusting as long as we can still make changes. */
-
- for (l = 0; k && l < us.nDivision*2; l++) {
- k = 0;
- for (i = 1; i <= cObj*2; i++)
- if (FProper((i+1)/2) && symbol[i] >= 0.0) {
-
- /* For each object, determine who is closest to the left and right. */
-
- k1 = max-symbol[i]; k2 = -symbol[i];
- for (j = 1; j <= cObj*2; j++) {
- if (FProper((j+1)/2) && i != j) {
- temp = symbol[j]-symbol[i];
- if (temp < k1 && temp >= 0.0)
- k1 = temp;
- else if (temp > k2 && temp <= 0.0)
- k2 = temp;
- }
- }
-
- /* If an object's too close on one side, then we move to the other. */
-
- if (k2 > -orb && k1 > orb) {
- k = 1; symbol[i] = symbol[i]+orb*0.51+k2*0.49;
- } else if (k1 < orb && k2 < -orb) {
- k = 1; symbol[i] = symbol[i]-orb*0.51+k1*0.49;
- } else if (k2 > -orb && k1 < orb) {
- k = 1; symbol[i] = symbol[i]+(k1+k2)*0.5;
- }
- }
- }
- }
-
-
- /* Given a zodiac degree, adjust it if need be to account for the expanding */
- /* and compacting of parts the zodiac that happen when we display a graphic */
- /* wheel chart such that all the houses appear the same size. */
-
- real HousePlaceInX(deg)
- real deg;
- {
- int in;
-
- if (gi.nMode == gWheel) /* We only adjust for the -w -X combination. */
- return deg;
- in = HousePlaceIn(deg);
- return Mod(ZFromS(in)+MinDistance(house[in], deg)/
- MinDistance(house[in], house[Mod12(in+1)])*30.0);
- }
-
-
- /*
- ******************************************************************************
- ** Multiple Chart Graphics Routines.
- ******************************************************************************
- */
-
- /* Draw another wheel chart; however, this time we have two rings of planets */
- /* because we are doing a relationship chart between two sets of data. This */
- /* chart is obtained when the -r0 is combined with the -X switch. */
-
- void XChartWheelRelation()
- {
- real xsign[cSign+1], xhouse1[cSign+1], xplanet1[objMax], xplanet2[objMax], symbol[objMax];
- int cx, cy, i, j;
- real asc, unitx, unity, px, py, temp;
-
- /* 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;
- asc = gs.nLeft ? cp1.obj[abs(gs.nLeft)]+90*(gs.nLeft < 0) : cp1.cusp[1];
-
- /* Fill out arrays with the degree of each object, cusp, and sign glyph. */
-
- if (gi.nMode == gWheel) {
- for (i = 1; i <= cSign; i++)
- xhouse1[i] = PZ(cp1.cusp[i]);
- } else {
- asc -= cp1.cusp[1];
- for (i = 1; i <= cSign; i++)
- xhouse1[i] = PZ(ZFromS(i));
- }
- for (i = 1; i <= cSign; i++)
- xsign[i] = PZ(HousePlaceInX(ZFromS(i)));
- for (i = 1; i <= cObj; i++)
- xplanet1[i] = PZ(HousePlaceInX(cp1.obj[i]));
- for (i = 1; i <= cObj; i++)
- xplanet2[i] = PZ(HousePlaceInX(cp2.obj[i]));
-
- /* Draw the horizon and meridian lines across whole chart, and draw the */
- /* zodiac and house rings, exactly like before. We are drawing only the */
- /* houses of one of the two charts in the relationship, however. */
-
- DrawColor(gi.kiLite);
- DrawDash(cx+POINT1(unitx, 0.99, PX(xhouse1[sAri])),
- cy+POINT1(unity, 0.99, PY(xhouse1[sAri])),
- cx+POINT1(unitx, 0.99, PX(xhouse1[sLib])),
- cy+POINT1(unity, 0.99, PY(xhouse1[sLib])), !gs.fColor);
-
- DrawDash(cx+POINT1(unitx, 0.99, PX(xhouse1[sCap])),
- cy+POINT1(unity, 0.99, PY(xhouse1[sCap])),
- cx+POINT1(unitx, 0.99, PX(xhouse1[sCan])),
- cy+POINT1(unity, 0.99, PY(xhouse1[sCan])), !gs.fColor);
-
- for (i = 0; i < nDegMax; i += 5-(gs.fColor || gs.fPS || gs.fMeta)*4)
- {
- temp = PZ(HousePlaceInX((real)i));
- px = PX(temp); py = PY(temp);
- DrawColor(i%5 ? gi.kiGray : gi.kiOn);
- DrawDash(cx+POINT1(unitx, 0.78, px), cy+POINT1(unity, 0.78, py),
- cx+POINT2(unitx, 0.82, px), cy+POINT2(unity, 0.82, py), ((gs.fPS || gs.fMeta) && i%5)*2);
- }
-
- DrawColor(gi.kiOn);
- DrawCircle(cx, cy, (int)(unitx*0.95+rRound), (int)(unity*0.95+rRound));
- DrawCircle(cx, cy, (int)(unitx*0.82+rRound), (int)(unity*0.82+rRound));
- DrawCircle(cx, cy, (int)(unitx*0.78+rRound), (int)(unity*0.78+rRound));
- DrawCircle(cx, cy, (int)(unitx*0.70+rRound), (int)(unity*0.70+rRound));
-
- for (i = 1; i <= cSign; i++) {
- temp = xsign[i];
- DrawColor(gi.kiOn);
- DrawLine(cx+POINT2(unitx, 0.95, PX(temp)),
- cy+POINT2(unity, 0.95, PY(temp)),
- cx+POINT1(unitx, 0.82, PX(temp)),
- cy+POINT1(unity, 0.82, PY(temp)));
- DrawLine(cx+POINT2(unitx, 0.78, PX(xhouse1[i])),
- cy+POINT2(unity, 0.78, PY(xhouse1[i])),
- cx+POINT1(unitx, 0.70, PX(xhouse1[i])),
- cy+POINT1(unity, 0.70, PY(xhouse1[i])));
- if (gs.fColor && i%3 != 1) {
- DrawColor(gi.kiGray);
- DrawDash(cx, cy, cx+POINT1(unitx, 0.70, PX(xhouse1[i])),
- cy+POINT1(unity, 0.70, PY(xhouse1[i])), 1);
- }
- temp = Midpoint(temp, xsign[Mod12(i+1)]);
- DrawColor(kSignB(i));
- DrawSign(i, cx+POINT1(unitx, 0.885, PX(temp)),
- cy+POINT1(unity, 0.885, PY(temp)));
- temp = Midpoint(xhouse1[i], xhouse1[Mod12(i+1)]);
- DrawHouse(i, cx+POINT1(unitx, 0.74, PX(temp)),
- cy+POINT1(unity, 0.74, PY(temp)));
- }
-
- /* Draw the outer ring of planets (based on the planets in the chart */
- /* which the houses do not reflect - the houses belong to the inner ring */
- /* below). Draw each glyph, a line from it to its actual position point */
- /* in the outer ring, and then draw another line from this point to a */
- /* another dot at the same position in the inner ring as well. */
-
- for (i = 1; i <= cObj; i++)
- symbol[i] = xplanet2[i];
-
- FillSymbolRing(symbol);
-
- for (i = cObj; i >= 1; i--) if (FProper2(i))
- {
- if (gs.fLabel) {
- temp = symbol[i];
- DrawColor(cp2.dir[i] < 0.0 ? gi.kiGray : gi.kiOn);
- DrawDash(cx+POINT1(unitx, 0.58, PX(xplanet2[i])),
- cy+POINT1(unity, 0.58, PY(xplanet2[i])),
- cx+POINT2(unitx, 0.61, PX(temp)),
- cy+POINT2(unity, 0.61, PY(temp)), (cp2.dir[i] < 0.0 ? 1 : 0) - gs.fColor);
-
- DrawObject(i, cx+POINT1(unitx, 0.65, PX(temp)),
- cy+POINT1(unity, 0.65, PY(temp)));
- }
- DrawColor(kObjB[i]);
- DrawPoint(cx+POINT1(unitx, 0.56, PX(xplanet2[i])),
- cy+POINT1(unity, 0.56, PY(xplanet2[i])));
- DrawPoint(cx+POINT1(unitx, 0.43, PX(xplanet2[i])),
- cy+POINT1(unity, 0.43, PY(xplanet2[i])));
- DrawColor(cp2.dir[i] < 0.0 ? gi.kiGray : gi.kiOn);
- DrawDash(cx+POINT1(unitx, 0.45, PX(xplanet2[i])),
- cy+POINT1(unity, 0.45, PY(xplanet2[i])),
- cx+POINT2(unitx, 0.54, PX(xplanet2[i])),
- cy+POINT2(unity, 0.54, PY(xplanet2[i])), 2-gs.fColor);
- }
-
- /* Now draw the inner ring of planets. If it weren't for the outer ring, */
- /* this would be just like the standard non-relationship wheel chart with */
- /* only one set of planets. Again, draw glyph, and a line to true point. */
-
- for (i = 1; i <= cObj; i++)
- symbol[i] = xplanet1[i];
-
- FillSymbolRing(symbol);
-
- for (i = 1; i <= cObj; i++) if (FProper(i))
- {
- if (gs.fLabel) {
- temp = symbol[i];
- DrawColor(cp1.dir[i] < 0.0 ? gi.kiGray : gi.kiOn);
- DrawDash(cx+POINT1(unitx, 0.45, PX(xplanet1[i])),
- cy+POINT1(unity, 0.45, PY(xplanet1[i])),
- cx+POINT2(unitx, 0.48, PX(temp)),
- cy+POINT2(unity, 0.48, PY(temp)), (cp1.dir[i] < 0.0 ? 1 : 0) - gs.fColor);
- DrawObject(i, cx+POINT1(unitx, 0.52, PX(temp)),
- cy+POINT1(unity, 0.52, PY(temp)));
- } else
- DrawColor(kObjB[i]);
- DrawPoint(cx+POINT1(unitx, 0.43, PX(xplanet1[i])),
- cy+POINT1(unity, 0.43, PY(xplanet1[i])));
- }
-
- /* Draw lines connecting planets between the two charts that have aspects. */
-
- if (!gs.fAlt) /* Don't draw aspects in bonus mode. */
- {
- if (!FCreateGridRelation(fFalse))
- return;
-
- for (j = cObj; j >= 1; j--)
- for (i = cObj; i >= 1; i--)
- if (grid->n[i][j] && FProper2(i) && FProper(j)) {
- DrawColor(kAspB[grid->n[i][j]]);
- DrawDash(cx+POINT1(unitx, 0.41, PX(xplanet1[j])),
- cy+POINT1(unity, 0.41, PY(xplanet1[j])),
- cx+POINT1(unitx, 0.41, PX(xplanet2[i])),
- cy+POINT1(unity, 0.41, PY(xplanet2[i])), abs(grid->v[i][j]/60/2));
- }
- }
-
- /* Go draw sidebar with chart information and positions if need be. */
-
- DrawInfo();
- }
-
-
- /* Draw an aspect (or midpoint) grid in the window, between the planets in */
- /* two different charts, with the planets labeled at the top and side. This */
- /* chart is done when the -g switch is combined with the -r0 and -X switch. */
- /* Like above, the chart always has a (definable) fixed number of cells. */
-
- void XChartGridRelation()
- {
- char sz[cchSzDef];
- int unit, siz, x, y, i, j, k, l;
- KI c;
-
- unit = CELLSIZE*gi.nScale; siz = (gs.nGridCell+1)*unit;
- if (!FCreateGridRelation(gs.fAlt != us.fGridConfig))
- return;
- for (y = 0, j = -1; y <= gs.nGridCell; y++) {
- do {
- j++;
- } while (ignore[j] && j <= cObj);
- DrawColor(gi.kiGray);
- DrawDash(0, (y+1)*unit, siz, (y+1)*unit, !gs.fColor);
- DrawDash((y+1)*unit, 0, (y+1)*unit, siz, !gs.fColor);
- DrawColor(gi.kiLite);
- DrawEdge(0, y*unit, unit, (y+1)*unit);
- DrawEdge(y*unit, 0, (y+1)*unit, unit);
- if (j <= cObj) for (x = 0, i = -1; x <= gs.nGridCell; x++) {
- do {
- i++;
- } while (ignore[i] && i <= cObj);
-
- /* Again, we are looping through each cell in each row and column. */
-
- 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 current cell is on top row or left hand column, draw glyph */
- /* of planet owning the particular row or column in question. */
-
- if (y == 0 || x == 0) {
- if (x+y > 0)
- DrawObject(j == 0 ? i : j, gi.xTurtle, gi.yTurtle);
- } else {
-
- /* Otherwise, draw glyph of aspect in effect, or glyph of */
- /* sign of midpoint, between the two planets in question. */
-
- if (gs.fAlt == us.fGridConfig) {
- if (k) {
- DrawColor(c = kAspB[k]);
- DrawAspect(k, gi.xTurtle, gi.yTurtle);
- }
- } else {
- DrawColor(c = kSignB(grid->n[i][j]));
- DrawSign(grid->n[i][j], gi.xTurtle, gi.yTurtle);
- }
- }
-
- /* Again, when scale size is 300+, print some text in current cell: */
-
- if (gi.nScale/gi.nScaleT > 2 && gs.fLabel) {
-
- /* For top and left edges, print sign and degree of the planet. */
-
- if (y == 0 || x == 0)
- {
- if (x+y > 0) {
- k = SFromZ(y == 0 ? cp2.obj[i] : cp1.obj[j]);
- l = (int)((y == 0 ? cp2.obj[i] : cp1.obj[j])-ZFromS(k));
- c = kSignB(k);
- sprintf(sz, "%c%c%c %02d", chSig3(k), l);
-
- /* For extreme upper left corner, print some little arrows */
- /* pointing out chart1's planets and chart2's planets. */
-
- } else {
- c = gi.kiLite;
- sprintf(sz, "1v 2->");
- }
- } else {
- k = abs(grid->v[i][j]);
-
- /* For aspect cells, print the orb in degrees and minutes. */
-
- if (gs.fAlt == us.fGridConfig) {
- 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 midpoint cells, print degree and minute. */
-
- } else
- sprintf(sz, "%2d %02d'", k/60, k%60);
- }
- DrawColor(c);
- DrawSz(sz, x*unit+unit/2, (y+1)*unit-3*gi.nScaleT, dtBottom);
- }
- }
- }
- }
- }
-
-
- #ifdef BIORHYTHM
- /* Draw a graphic biorhythm chart on the screen, as is done when the -rb */
- /* switch is combined with -X. This is technically a relationship chart in */
- /* that biorhythm status is determined by a natal chart time at another */
- /* later time. For the day in question, and for two weeks before and after, */
- /* the Physical, Emotional, and Mental percentages are plotted. */
-
- void XChartBiorhythm()
- {
- char sz[6], *c;
- real jd, r, a;
- int x1, x2, xs, cx, y1, y2, ys, cy, i, j, k, x, y, x0, y0;
-
- k = xFont*6*gi.nScaleT;
- x1 = k; x2 = gs.xWin-k; xs = x2-x1; cx = (x1+x2)/2;
- k = CELLSIZE;
- y1 = k; y2 = gs.yWin-k; ys = y2-y1; cy = (y1+y2)/2;
-
- /* Create a dotted day/percentage grid to graph on. */
-
- DrawColor(gi.kiGray);
- DrawDash(x1, cy, x2, cy, 1);
- DrawDash(cx, y1, cx, y2, 1);
- for (j = -BIODAYS+1; j <= BIODAYS-1; j++) {
- x = x1 + NMultDiv(xs, j+BIODAYS, BIODAYS*2);
- for (k = -90; k <= 90; k += 10) {
- y = y1 + NMultDiv(ys, 100+k, 200);
- DrawPoint(x, y);
- }
- }
-
- /* Now actually draw the three biorhythm curves. */
-
- for (i = 1; i <= 3; i++) {
- jd = RFloor(is.JD + rRound);
- switch (i) {
- case 1: r = brPhy; c = "PHYS"; j = eFir; break;
- case 2: r = brEmo; c = "EMOT"; j = eWat; break;
- case 3: r = brInt; c = "INTE"; j = eEar; break;
- }
- DrawColor(kElemB[j]);
- for (jd -= (real)BIODAYS, j = -BIODAYS; j <= BIODAYS; j++, jd += 1.0) {
- a = RBiorhythm(jd, r);
- x = x1 + NMultDiv(xs, j+BIODAYS, BIODAYS*2);
- y = y1 + (int)((real)ys * (100.0-a) / 200.0);
- if (j > -BIODAYS)
- DrawLine(x0, y0, x, y);
- else
- DrawSz(c, x1/2, y+2*gi.nScaleT, dtCent);
- x0 = x; y0 = y;
- }
- }
-
- DrawColor(gi.kiLite);
-
- /* Label biorhythm percentages along right vertical axis. */
-
- for (k = -100; k <= 100; k += 10)
- {
- sprintf(sz, "%c%3d%%", k < 0 ? '-' : '+', abs(k));
- y = y1 + NMultDiv(ys, 100-k, 200);
- DrawSz(sz, (x2+gs.xWin)/2, y+2*gi.nScaleT, dtCent);
- }
-
- /* Label days on top horizontal axis. */
-
- for (j = -BIODAYS+2; j < BIODAYS; j += 2)
- {
- x = x1 + NMultDiv(xs, j+BIODAYS, BIODAYS*2);
- sprintf(sz, "%c%d", j < 0 ? '-' : '+', abs(j));
- DrawSz(sz, x, y1-2*gi.nScaleT, dtBottom);
- }
- DrawEdge(x1, y1, x2, y2);
- }
- #endif /* BIORHYTHM */
- #endif /* GRAPH */
-
- /* xcharts2.c */
-