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Date isnt recalculated in CalculateFinalPositionVelocity

feature/19
Daniel Warner 2012-01-03 20:43:47 +00:00
parent fea7fb3b54
commit ff7498798d
2 changed files with 27 additions and 21 deletions
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41
libsgp4/SGP4.cpp
View File

@ -185,25 +185,33 @@ void SGP4::Initialise()
} }
Eci SGP4::FindPosition(double tsince) const Eci SGP4::FindPosition(double tsince) const
{
Julian dt(elements_.Epoch());
dt.AddMin(tsince);
return FindPosition(dt, tsince);
}
Eci SGP4::FindPosition(const Julian& dt) const
{
Timespan diff = dt - elements_.Epoch();
return FindPosition(dt, diff.GetTotalMinutes());
}
Eci SGP4::FindPosition(const Julian& dt, double tsince) const
{ {
if (use_deep_space_) if (use_deep_space_)
{ {
return FindPositionSDP4(tsince); return FindPositionSDP4(dt, tsince);
} }
else else
{ {
return FindPositionSGP4(tsince); return FindPositionSGP4(dt, tsince);
} }
} }
Eci SGP4::FindPosition(const Julian& date) const Eci SGP4::FindPositionSDP4(const Julian& dt, double tsince) const
{
Timespan diff = date - elements_.Epoch();
return FindPosition(diff.GetTotalMinutes());
}
Eci SGP4::FindPositionSDP4(double tsince) const
{ {
/* /*
* the final values * the final values
@ -306,7 +314,7 @@ Eci SGP4::FindPositionSDP4(double tsince) const
/* /*
* using calculated values, find position and velocity * using calculated values, find position and velocity
*/ */
return CalculateFinalPositionVelocity(tsince, e, return CalculateFinalPositionVelocity(dt, e,
a, omega, xl, xnode, a, omega, xl, xnode,
xincl, perturbed_xlcof, perturbed_aycof, xincl, perturbed_xlcof, perturbed_aycof,
perturbed_x3thm1, perturbed_x1mth2, perturbed_x7thm1, perturbed_x3thm1, perturbed_x1mth2, perturbed_x7thm1,
@ -314,7 +322,7 @@ Eci SGP4::FindPositionSDP4(double tsince) const
} }
Eci SGP4::FindPositionSGP4(double tsince) const Eci SGP4::FindPositionSGP4(const Julian& dt, double tsince) const
{ {
/* /*
* the final values * the final values
@ -388,7 +396,7 @@ Eci SGP4::FindPositionSGP4(double tsince) const
* using calculated values, find position and velocity * using calculated values, find position and velocity
* we can pass in constants from Initialise() as these dont change * we can pass in constants from Initialise() as these dont change
*/ */
return CalculateFinalPositionVelocity(tsince, e, return CalculateFinalPositionVelocity(dt, e,
a, omega, xl, xnode, a, omega, xl, xnode,
xincl, common_consts_.xlcof, common_consts_.aycof, xincl, common_consts_.xlcof, common_consts_.aycof,
common_consts_.x3thm1, common_consts_.x1mth2, common_consts_.x7thm1, common_consts_.x3thm1, common_consts_.x1mth2, common_consts_.x7thm1,
@ -396,7 +404,7 @@ Eci SGP4::FindPositionSGP4(double tsince) const
} }
Eci SGP4::CalculateFinalPositionVelocity(const double& tsince, const double& e, Eci SGP4::CalculateFinalPositionVelocity(const Julian& dt, const double& e,
const double& a, const double& omega, const double& xl, const double& xnode, const double& a, const double& omega, const double& xl, const double& xnode,
const double& xincl, const double& xlcof, const double& aycof, const double& xincl, const double& xlcof, const double& aycof,
const double& x3thm1, const double& x1mth2, const double& x7thm1, const double& x3thm1, const double& x1mth2, const double& x7thm1,
@ -557,10 +565,7 @@ Eci SGP4::CalculateFinalPositionVelocity(const double& tsince, const double& e,
const double zdot = (rdotk * uz + rfdotk * vz) * kXKMPER / 60.0; const double zdot = (rdotk * uz + rfdotk * vz) * kXKMPER / 60.0;
Vector velocity(xdot, ydot, zdot); Vector velocity(xdot, ydot, zdot);
Julian julian(elements_.Epoch()); Eci eci(dt, position, velocity);
julian.AddMin(tsince);
Eci eci(julian, position, velocity);
return eci; return eci;
} }

7
libsgp4/SGP4.h
View File

@ -211,9 +211,10 @@ private:
double* omgasm, double* xnodes, double* xll) const; double* omgasm, double* xnodes, double* xll) const;
void DeepSpaceSecular(const double& t, double* xll, double* omgasm, void DeepSpaceSecular(const double& t, double* xll, double* omgasm,
double* xnodes, double* em, double* xinc, double* xn) const; double* xnodes, double* em, double* xinc, double* xn) const;
Eci FindPositionSDP4(double tsince) const; Eci FindPosition(const Julian& dt, double tsince) const;
Eci FindPositionSGP4(double tsince) const; Eci FindPositionSDP4(const Julian& dt, double tsince) const;
Eci CalculateFinalPositionVelocity(const double& tsince, const double& e, Eci FindPositionSGP4(const Julian& dt, double tsince) const;
Eci CalculateFinalPositionVelocity(const Julian& dt, const double& e,
const double& a, const double& omega, const double& xl, const double& xnode, const double& a, const double& omega, const double& xl, const double& xnode,
const double& xincl, const double& xlcof, const double& aycof, const double& xincl, const double& xlcof, const double& aycof,
const double& x3thm1, const double& x1mth2, const double& x7thm1, const double& x3thm1, const double& x1mth2, const double& x7thm1,