Public Member Functions | |
| Point3d | computePosition (double jd) const |
| double | getBoundingRadius () const |
| double | getPeriod () const |
| VSOP87Orbit (VSOPSeries *_vsL, int _nL, VSOPSeries *_vsB, int _nB, VSOPSeries *_vsR, int _nR, double _period, double _boundingRadius) | |
Private Attributes | |
| double | boundingRadius |
| int | nB |
| int | nL |
| int | nR |
| double | period |
| VSOPSeries * | vsB |
| VSOPSeries * | vsL |
| VSOPSeries * | vsR |
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Definition at line 17507 of file vsop87.cpp. References boundingRadius, nB, nL, nR, period, vsB, vsL, and vsR. 17511 : 17512 vsL(_vsL), nL(_nL), 17513 vsB(_vsB), nB(_nB), 17514 vsR(_vsR), nR(_nR), 17515 period(_period), 17516 boundingRadius(_boundingRadius) 17517 { 17518 };
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Implements CachingOrbit. Definition at line 17530 of file vsop87.cpp. References cos(), KM_PER_AU, nB, nL, nR, PI, sin(), SumSeries(), vsB, vsL, and vsR. 17531 {
17532 // t is Julian millenia since J2000.0
17533 double t = (jd - 2451545.0) / 365250.0;
17534
17535 // Heliocentric coordinates
17536 double l = 0.0; // longitude
17537 double b = 0.0; // latitude
17538 double r = 0.0; // radius
17539
17540 int i;
17541 double T;
17542
17543 // Evaluate series for l
17544 T = 1;
17545 for (i = 0; i < nL; i++)
17546 {
17547 l += SumSeries(vsL[i], t) * T;
17548 T = t * T;
17549 }
17550
17551 // Evaluate series for b
17552 T = 1;
17553 for (i = 0; i < nB; i++)
17554 {
17555 b += SumSeries(vsB[i], t) * T;
17556 T = t * T;
17557 }
17558
17559 // Evaluate series for r
17560 T = 1;
17561 for (i = 0; i < nR; i++)
17562 {
17563 r += SumSeries(vsR[i], t) * T;
17564 T = t * T;
17565 }
17566 #if 0
17567 // l and b are in units of 1e+8 radians
17568 l *= 1.0e-8;
17569 b *= 1.0e-8;
17570 // r is in units of 1e-8 AU
17571 r *= (KM_PER_AU / 100000000.0);
17572 #endif
17573 r *= KM_PER_AU;
17574
17575 // Corrections for internal coordinate system
17576 b -= PI / 2;
17577 l += PI;
17578
17579 return Point3d(cos(l) * sin(b) * r,
17580 cos(b) * r,
17581 -sin(l) * sin(b) * r);
17582 }
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Implements CachingOrbit. Definition at line 17525 of file vsop87.cpp. References boundingRadius. 17526 {
17527 return boundingRadius;
17528 }
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Implements CachingOrbit. Definition at line 17520 of file vsop87.cpp. References period. 17521 {
17522 return period;
17523 }
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Definition at line 17504 of file vsop87.cpp. Referenced by getBoundingRadius(), and VSOP87Orbit(). |
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Definition at line 17500 of file vsop87.cpp. Referenced by computePosition(), and VSOP87Orbit(). |
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Definition at line 17498 of file vsop87.cpp. Referenced by computePosition(), and VSOP87Orbit(). |
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Definition at line 17502 of file vsop87.cpp. Referenced by computePosition(), and VSOP87Orbit(). |
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Definition at line 17503 of file vsop87.cpp. Referenced by getPeriod(), and VSOP87Orbit(). |
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Definition at line 17499 of file vsop87.cpp. Referenced by computePosition(), and VSOP87Orbit(). |
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Definition at line 17497 of file vsop87.cpp. Referenced by computePosition(), and VSOP87Orbit(). |
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Definition at line 17501 of file vsop87.cpp. Referenced by computePosition(), and VSOP87Orbit(). |
1.4.1