private void AlignStatic()
{
double altOffset1;
Rotation3 rotationToStand1;
double quality1;
TwoStarsAlignment.Align(stars_[2].Horz, stars_[2].Scope, stars_[3].Horz, stars_[3].Scope, precesions_, out altOffset1, out rotationToStand1, out quality1);
Rotation3 eqRotation = rotationToStand_.Conj * rotationToStand1; // actual equatorial rotation
equAxis_ = eqRotation.Axis;
equHorzDiff_ = eqRotation.Angle; // Generally, it isn't equal to equScopeDiff_. It depends on platform accuracy.
altOffset_ = (altOffset_ + altOffset1) / 2; // average offset
if (quality_ < quality1)
{
quality_ = quality1; // maximal quality
}
iterationCnt_ = 0;
}
private void AlignDynamic()
{
double equAngleFactor = 1;
for (int i = 0; i < precesions_.iterCnt_; ++i)
{
Vect3 star1horz_corrected = new Rotation3((stars_[1].EquAngle - stars_[0].EquAngle) * equAngleFactor, equAxis_).Apply(stars_[1].Horz);
Vect3 star3horz_corrected = new Rotation3((stars_[3].EquAngle - stars_[2].EquAngle) * equAngleFactor, equAxis_).Apply(stars_[3].Horz);
double altOffset0;
Rotation3 rotationToStand0;
double quality0;
TwoStarsAlignment.Align(stars_[0].Horz, stars_[0].Scope, star1horz_corrected, stars_[1].Scope, precesions_, out altOffset0, out rotationToStand0, out quality0);
double altOffset1;
Rotation3 rotationToStand1;
double quality1;
TwoStarsAlignment.Align(stars_[2].Horz, stars_[2].Scope, star3horz_corrected, stars_[3].Scope, precesions_, out altOffset1, out rotationToStand1, out quality1);
Rotation3 eqRotation = rotationToStand0.Conj * rotationToStand1; // actual equatorial rotation
Vect3 equAxisNew = eqRotation.Axis;
double diff = Vect3.VMul(equAxis_, equAxisNew).Abs;
equAxis_ = equAxisNew;
if (diff < precesions_.iterEquAxisDiff_)
{
equHorzDiff_ = eqRotation.Angle; // Generally, it isn't equal to equScopeDiff_. It depends on platform accuracy.
rotationToStand_ = rotationToStand0;
altOffset_ = (altOffset0 + altOffset1) / 2; // average offset
quality_ = (quality0 > quality1) ? quality0 : quality1; // maximal quality
iterationCnt_ = i + 1;
return;
}
equAngleFactor = eqRotation.Angle / equScopeDiff_;
}
throw new ApplicationException("too many iterations");
}
