| 1 | #ifndef COORD_H
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| 2 | #define COORD_H
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| 3 |
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| 4 | #include <math.h> // floor
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| 5 | #include <fstream.h>
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| 6 |
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| 7 | #include "MAGIC.h"
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| 8 |
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| 9 | /* pi/180: degrees to radians */
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| 10 | const double kDeg2Rad = 0.017453292519943295769236907684886127134428718885417;
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| 11 |
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| 12 | /* 180/pi: radians to degrees */
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| 13 | //const double kRad2Deg = 57.295779513082320876798154814105170332405472466564;
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| 14 |
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| 15 | /* pi/2: 90 degrees in radians */
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| 16 | const double kPiDiv2 = 1.5707963267948966192313216916397514420985846996876;
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| 17 |
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| 18 | /* 2pi */
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| 19 | const double k2Pi = 6.2831853071795864769252867665590057683943387987502;
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| 20 |
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| 21 | class Deg
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| 22 | {
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| 23 | protected:
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| 24 | double fDeg;
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| 25 |
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| 26 | public:
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| 27 | Deg(const double d) : fDeg(d) {}
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| 28 | Deg(const Deg &c) { fDeg = c.fDeg; }
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| 29 |
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| 30 | void Set(double d) { fDeg=d; }
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| 31 |
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| 32 | double operator()() { return fDeg; }
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| 33 |
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| 34 | operator double() const { return fDeg*kDeg2Rad; }
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| 35 | };
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| 36 |
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| 37 | class XY
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| 38 | {
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| 39 | friend ifstream& operator>>(ifstream &in, XY &xy);
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| 40 | friend ofstream& operator<<(ofstream &in, XY &xy);
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| 41 |
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| 42 | protected:
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| 43 | double fX;
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| 44 | double fY;
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| 45 |
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| 46 | public:
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| 47 | XY(double x=0, double y=0) : fX(x), fY(y) {}
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| 48 | XY(const XY &c) { fX = c.fX; fY = c.fY; }
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| 49 |
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| 50 | void Set(double x, double y) { fX=x; fY=y; }
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| 51 |
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| 52 | double X() const { return fX; }
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| 53 | double Y() const { return fY; }
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| 54 |
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| 55 | void X(double x) { fX=x; }
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| 56 | void Y(double y) { fY=y; }
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| 57 |
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| 58 | void operator/=(double c) { fX/=c; fY/=c; }
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| 59 | void operator*=(double c) { fX*=c; fY*=c; }
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| 60 |
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| 61 | XY operator/(double c) const { return XY(fX/c, fY/c); }
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| 62 | XY operator*(double c) const { return XY(fX*c, fY*c); }
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| 63 | XY operator*(const XY &c) const { return XY(fX*c.fX, fY*c.fY); }
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| 64 | XY operator/(const XY &c) const { return XY(fX/c.fX, fY/c.fY); }
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| 65 | XY operator+(const XY &c) const { return XY(fX+c.fX, fY+c.fY); }
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| 66 | XY operator-(const XY &c) const { return XY(fX-c.fX, fY-c.fY); }
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| 67 | XY operator-() const { return XY(-fX, -fY); }
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| 68 |
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| 69 | double Sqr() const { return fX*fX + fY*fY; }
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| 70 | double Sqrt() const { return sqrt(Sqr()); }
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| 71 | double Ratio() const { return fX/fY; }
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| 72 | void Round() { fX=(int)(floor(fX+.5)); fY=(int)(floor(fY+.5)); }
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| 73 | };
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| 74 |
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| 75 | inline ifstream& operator>>(ifstream &in, XY &xy) { in >> xy.fX; in >> xy.fY; return in; }
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| 76 | inline ofstream& operator<<(ofstream &out, const XY &xy) { out << xy.X() << " " << xy.Y(); return out; }
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| 77 |
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| 78 | class AltAz : public XY
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| 79 | {
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| 80 | public:
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| 81 | AltAz(double alt=0, double az=0) : XY(alt, az) {}
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| 82 |
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| 83 | double Alt() const { return fX; }
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| 84 | double Az() const { return fY; }
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| 85 |
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| 86 | void operator*=(double c) { fX*=c; fY*=c; }
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| 87 | void operator/=(double c) { fX*=c; fY*=c; }
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| 88 |
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| 89 | void Alt(double d) { fX=d; }
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| 90 | void Az(double d) { fY=d; }
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| 91 | void operator*=(const XY &c) { fX*=c.X(); fY*=c.Y(); }
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| 92 | void operator/=(const XY &c) { fX/=c.X(); fY/=c.Y(); }
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| 93 | void operator-=(const AltAz &c) { fX-=c.fX; fY-=c.fY; }
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| 94 | void operator+=(const AltAz &c) { fX+=c.fX; fY+=c.fY; }
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| 95 |
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| 96 | AltAz operator/(double c) const { return AltAz(fX/c, fY/c); }
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| 97 | AltAz operator*(double c) const { return AltAz(fX*c, fY*c); }
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| 98 | AltAz operator*(const XY &c) const { return AltAz(fX*c.X(), fY*c.Y()); }
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| 99 | AltAz operator/(const XY &c) const { return AltAz(fX/c.X(), fY/c.Y()); }
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| 100 | AltAz operator+(const AltAz &c) const { return AltAz(fX+c.fX, fY+c.fY); }
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| 101 | AltAz operator-(const AltAz &c) const { return AltAz(fX-c.fX, fY-c.fY); }
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| 102 | AltAz operator-() const { return AltAz(-fX, -fY); }
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| 103 | };
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| 104 |
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| 105 | class ZdAz : public XY
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| 106 | {
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| 107 | public:
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| 108 | ZdAz(double zd=0, double az=0) : XY(zd, az) {}
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| 109 | ZdAz(const ZdAz &c) : XY(c) {}
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| 110 |
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| 111 | void operator*=(double c) { fX*=c; fY*=c; }
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| 112 | void operator/=(double c) { fX*=c; fY*=c; }
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| 113 |
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| 114 | double Zd() const { return fX; }
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| 115 | double Az() const { return fY; }
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| 116 |
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| 117 | void Zd(double d) { fX=d; }
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| 118 | void Az(double d) { fY=d; }
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| 119 | void operator*=(const XY &c) { fX*=c.X(); fY*=c.Y(); }
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| 120 | void operator/=(const XY &c) { fX/=c.X(); fY/=c.Y(); }
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| 121 | void operator-=(const ZdAz &c) { fX-=c.fX; fY-=c.fY; }
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| 122 | void operator+=(const ZdAz &c) { fX+=c.fX; fY+=c.fY; }
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| 123 |
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| 124 | ZdAz operator/(double c) const { return ZdAz(fX/c, fY/c); }
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| 125 | ZdAz operator*(double c) const { return ZdAz(fX*c, fY*c); }
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| 126 | ZdAz operator*(const XY &c) const { return ZdAz(fX*c.X(), fY*c.Y()); }
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| 127 | ZdAz operator/(const XY &c) const { return ZdAz(fX/c.X(), fY/c.Y()); }
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| 128 | ZdAz operator+(const ZdAz &c) const { return ZdAz(fX+c.fX, fY+c.fY); }
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| 129 | ZdAz operator-(const ZdAz &c) const { return ZdAz(fX-c.fX, fY-c.fY); }
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| 130 | ZdAz operator-() const { return ZdAz(-fX, -fY); }
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| 131 | };
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| 132 |
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| 133 | class RaDec : public XY
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| 134 | {
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| 135 | public:
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| 136 | RaDec(double ra=0, double dec=0) : XY(ra, dec) {}
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| 137 |
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| 138 | double Ra() const { return fX; }
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| 139 | double Dec() const { return fY; }
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| 140 |
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| 141 | void operator*=(double c) { fX*=c; fY*=c; }
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| 142 | void operator/=(double c) { fX*=c; fY*=c; }
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| 143 |
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| 144 | void Ra(double x) { fX = x; }
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| 145 | void Dec(double y) { fY = y; }
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| 146 |
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| 147 | RaDec operator/(double c) const { return RaDec(fX/c, fY/c); }
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| 148 | RaDec operator*(double c) const { return RaDec(fX*c, fY*c); }
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| 149 | RaDec operator*(const XY &c) const { return RaDec(fX*c.X(), fY*c.Y()); }
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| 150 | RaDec operator+(const RaDec &c) const { return RaDec(fX+c.fX, fY+c.fY); }
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| 151 | RaDec operator-(const RaDec &c) const { return RaDec(fX-c.fX, fY-c.fY); }
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| 152 | RaDec operator-() const { return RaDec(-fX, -fY); }
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| 153 | };
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| 154 |
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| 155 | inline double Rad2Deg(double rad)
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| 156 | {
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| 157 | return kRad2Deg*rad;
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| 158 | }
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| 159 |
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| 160 | inline double Deg2Rad(double rad)
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| 161 | {
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| 162 | return kDeg2Rad*rad;
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| 163 | }
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| 164 | #endif
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