void CelestialNavigationDialog::OnDRShift( wxCommandEvent& event )
{
#if 0
DRShiftDialog dialog;
if(dialog.ShowModel() == wxID_OK) {
double shiftnm, shiftbearing;
dialog.m_tShiftNm->GetValue().ToDouble(&shiftnm);
dialog.m_tShiftBearing->GetValue().ToDouble(&shiftbearing);
bool MagneticShiftBearing = dialog.m_cbMagneticShiftBearing->GetValue();
for (std::list<Sight*>::iterator it = m_SightList.begin(); it != m_SightList.end(); it++) {
Sight *s = *it;
if(!s->IsVisible())
continue;
if(s->m_bMagneticShiftBearing != MagneticShiftBearing
}
}
void CelestialNavigationDialog::UpdateFix()
{
std::list<std::vector<double> > J;
std::list<double> R;
double X[3]; /* result */
double initiallat = m_sInitialLatitude->GetValue(), initiallon = m_sInitialLongitude->GetValue();
X[0] = cos(deg2rad(initiallat))*cos(deg2rad(initiallon));
X[1] = cos(deg2rad(initiallat))*sin(deg2rad(initiallon));
X[2] = sin(deg2rad(initiallat));
int iterations = 0;
again:
for (SightList::iterator it = m_SightList.begin(); it != m_SightList.end(); it++) {
Sight *s = *it;
if(!s->IsVisible() || s->m_Type != Sight::ALTITUDE)
continue;
if(s->m_ShiftNm) {
static bool seenwarning = false;
if(!seenwarning) {
wxMessageDialog mdlg(this, _("Shifted sights are not used to compute a fix, \
determine fix visually instead.\n"), wxString(_("Fix Position"), wxID_OK | wxICON_WARNING));
mdlg.ShowModal();
seenwarning = true;
}
continue;
}
double lat, lon;
s->BodyLocation(s->m_DateTime, &lat, &lon, 0, 0);
/* take vector from body location of length equal to
normalized measurement (so the plane this vector
describes intersects the unit sphere along the positions
the sight is valid) */
std::vector<double> v;
double x = cos(deg2rad(lat))*cos(deg2rad(lon));
double y = cos(deg2rad(lat))*sin(deg2rad(lon));
double z = sin(deg2rad(lat));
double sm = sin(deg2rad(s->m_CorrectedAltitude));
double cm = cos(deg2rad(s->m_CorrectedAltitude));
double d;
switch(m_cbFixAlgorithm->GetSelection()) {
case 0: /* plane */
plane:
/* plane */
v.push_back(x);
v.push_back(y);
v.push_back(z);
d = sm - (X[0]*x + X[1]*y + X[2]*z);
break;
case 1: /* sphere */
{
double xc = X[0] - x, yc = X[1] - y, zc = X[2] - z;
v.push_back(2*xc);
v.push_back(2*yc);
v.push_back(2*zc);
d = cm*cm + (1-sm)*(1-sm) - xc*xc - yc*yc - zc*zc;
} break;
case 2: /* cone */
{
double t2 = X[0]*X[0] + X[1]*X[1] + X[2]*X[2], t = sqrt(t2);
if(t < .1) goto plane;
v.push_back(x);
v.push_back(y);
v.push_back(z);
d = sm - (X[0]*x + X[1]*y + X[2]*z)/t;
} break;
case 3: /* cone 2 */
{
double t2 = X[0]*X[0] + X[1]*X[1] + X[2]*X[2], t = sqrt(t2);
if(t < .1) goto plane;
v.push_back(x/t - x*X[0]*X[0]/(t*t2));
v.push_back(y/t - y*X[1]*X[1]/(t*t2));
v.push_back(z/t - z*X[2]*X[2]/(t*t2));
d = sm - (X[0]*x + X[1]*y + X[2]*z)/t;
} break;
}
J.push_back(v);
R.push_back(d);
}