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This commit is contained in:
Timur A. Fatkhullin
2026-01-15 23:21:28 +03:00
parent 01d5657b1b
commit 0aa0113be3
3 changed files with 140 additions and 41 deletions
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110
mcc/mcc_coord.h
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@@ -31,13 +31,13 @@ public:
? MccCoordPairKind::COORDS_KIND_RADEC_APP
// observed RA and DEC
: (std::same_as<CO_LON_T, MccAngleRA_OBS> && std::same_as<CO_LAT_T, MccAngleDEC_OBS>)
? MccCoordPairKind::COORDS_KIND_RADEC_APP
? MccCoordPairKind::COORDS_KIND_RADEC_OBS
// apparent HA and DEC
: (std::same_as<CO_LON_T, MccAngleHA_APP> && std::same_as<CO_LAT_T, MccAngleDEC_APP>)
? MccCoordPairKind::COORDS_KIND_HADEC_APP
// observed HA and DEC
: (std::same_as<CO_LON_T, MccAngleHA_OBS> && std::same_as<CO_LAT_T, MccAngleDEC_OBS>)
? MccCoordPairKind::COORDS_KIND_HADEC_APP
? MccCoordPairKind::COORDS_KIND_HADEC_OBS
// apparent AZ and ZD
: (std::same_as<CO_LON_T, MccAngleAZ> && std::same_as<CO_LAT_T, MccAngleZD>)
? MccCoordPairKind::COORDS_KIND_AZZD
@@ -132,6 +132,11 @@ template <mcc_angle_c CO_LON_T, mcc_angle_c CO_LAT_T>
class MccNamedCoordPair : public MccCoordPair<CO_LON_T, CO_LAT_T>
{
public:
MccNamedCoordPair() : MccCoordPair<CO_LON_T, CO_LAT_T>(CO_LON_T{0.0}, CO_LAT_T{0.0}, MccCelestialCoordEpoch::now())
{
}
template <typename CxT, typename CyT, mcc_coord_epoch_c EpT = MccCelestialCoordEpoch>
requires(std::is_arithmetic_v<CxT> && std::is_arithmetic_v<CyT>)
MccNamedCoordPair(CxT const& x, CyT const& y, EpT const& epoch = EpT::now())
@@ -166,7 +171,7 @@ struct MccSkyRADEC_ICRS : MccNamedCoordPair<MccAngleRA_ICRS, MccAngleDEC_ICRS> {
MccSkyRADEC_ICRS(MccAngle const& x, MccAngle const& y) : MccSkyRADEC_ICRS((double)x, (double)y) {}
// ignore epoch setting (it is always J2000.0)
void setEpoch(mcc_coord_epoch_c auto const& ep)
void setEpoch(mcc_coord_epoch_c auto const&)
{
static_assert(false, "CANNOT SET EPOCH FOR ICRS-KIND COORDINATE PAIR!!!");
}
@@ -403,33 +408,33 @@ protected:
return;
} else { // from ICRS to apparent or observed
if constexpr (mccIsAppCoordPairKind<PT::pairKind>) {
ccte_err = cctEngine.icrsToApp(_x, _y, cpair.epoch(), &ra, &dec, &ha, &az, &zd);
} else if constexpr (mccIsObsCoordPairKind<PT::pairKind>) {
ccte_err = cctEngine.icrsToObs(_x, _y, cpair.epoch(), &ra, &dec, &ha, &az, &zd);
} else {
static_assert(true, "UNSUPPORTED SKY POINT TRANSFORMATION!");
}
// if constexpr (mccIsAppCoordPairKind<PT::pairKind>) {
// ccte_err = cctEngine.icrsToApp(_x, _y, cpair.epoch(), &ra, &dec, &ha, &az, &zd);
// } else if constexpr (mccIsObsCoordPairKind<PT::pairKind>) {
// ccte_err = cctEngine.icrsToObs(_x, _y, cpair.epoch(), &ra, &dec, &ha, &az, &zd);
// } else {
// static_assert(true, "UNSUPPORTED SKY POINT TRANSFORMATION!");
// }
if constexpr (PT::pairKind == MccCoordPairKind::COORDS_KIND_RADEC_APP ||
PT::pairKind == MccCoordPairKind::COORDS_KIND_RADEC_OBS) {
cpair.setX(ra);
cpair.setY(dec);
} else if constexpr (PT::pairKind == MccCoordPairKind::COORDS_KIND_HADEC_APP ||
PT::pairKind == MccCoordPairKind::COORDS_KIND_HADEC_OBS) {
cpair.setX(ha);
cpair.setY(dec);
} else if constexpr (PT::pairKind == MccCoordPairKind::COORDS_KIND_AZZD) {
cpair.setX(az);
cpair.setY(zd);
} else if constexpr (PT::pairKind == MccCoordPairKind::COORDS_KIND_AZALT) {
cpair.setX(az);
cpair.setY(half_pi - zd);
} else {
static_assert(true, "UNSUPPORTED SKY POINT TRANSFORMATION!");
}
// if constexpr (PT::pairKind == MccCoordPairKind::COORDS_KIND_RADEC_APP ||
// PT::pairKind == MccCoordPairKind::COORDS_KIND_RADEC_OBS) {
// cpair.setX(ra);
// cpair.setY(dec);
// } else if constexpr (PT::pairKind == MccCoordPairKind::COORDS_KIND_HADEC_APP ||
// PT::pairKind == MccCoordPairKind::COORDS_KIND_HADEC_OBS) {
// cpair.setX(ha);
// cpair.setY(dec);
// } else if constexpr (PT::pairKind == MccCoordPairKind::COORDS_KIND_AZZD) {
// cpair.setX(az);
// cpair.setY(zd);
// } else if constexpr (PT::pairKind == MccCoordPairKind::COORDS_KIND_AZALT) {
// cpair.setX(az);
// cpair.setY(half_pi - zd);
// } else {
// static_assert(true, "UNSUPPORTED SKY POINT TRANSFORMATION!");
// }
return;
// return;
}
}
@@ -476,11 +481,17 @@ protected:
// here, the input coordinates and stored one are at the same epoch
ccte_err = cctEngine.equationOrigins(cpair.MJD(), &eo);
ccte_err = cctEngine.equationOrigins(cpair.epoch(), &eo);
if (ccte_err) {
return;
}
ccte_err = cctEngine.apparentSideralTime(cpair.epoch(), &lst, true);
if (ccte_err) {
return;
}
if (pkind == MccCoordPairKind::COORDS_KIND_RADEC_APP || pkind == MccCoordPairKind::COORDS_KIND_RADEC_OBS) {
ra = _x;
dec = _y;
@@ -494,16 +505,43 @@ protected:
} else if (pkind == MccCoordPairKind::COORDS_KIND_AZALT) {
az = _x;
alt = _y;
} else if (pkind == MccCoordPairKind::COORDS_KIND_RADEC_ICRS) {
ra_icrs = _x;
dec_icrs = _y;
} else { // unsupported transformation!!!
return;
}
// else if (pkind == MccCoordPairKind::COORDS_KIND_RADEC_ICRS) {
// ra_icrs = _x;
// dec_icrs = _y;
// } else { // unsupported transformation!!!
// return;
// }
// coordinate transformation lambda (possibly recursive!!!)
auto comp_func = [&, this](this auto&& self, MccCoordPairKind cp_kind) -> void {
if (cp_kind == MccCoordPairKind::COORDS_KIND_AZALT) {
auto comp_func = [&](this auto&& self, MccCoordPairKind cp_kind) -> void {
if (cp_kind == MccCoordPairKind::COORDS_KIND_RADEC_ICRS) {
if constexpr (mccIsAppCoordPairKind<PT::pairKind>) {
ccte_err = cctEngine.icrsToApp(ra_icrs, dec_icrs, cpair.epoch(), &ra, &dec, &ha, &az, &zd);
} else if constexpr (mccIsObsCoordPairKind<PT::pairKind>) {
ccte_err = cctEngine.icrsToObs(ra_icrs, dec_icrs, cpair.epoch(), &ra, &dec, &ha, &az, &zd);
} else {
static_assert(true, "UNSUPPORTED SKY POINT TRANSFORMATION!");
}
if constexpr (PT::pairKind == MccCoordPairKind::COORDS_KIND_RADEC_APP ||
PT::pairKind == MccCoordPairKind::COORDS_KIND_RADEC_OBS) {
cpair.setX(ra);
cpair.setY(dec);
} else if constexpr (PT::pairKind == MccCoordPairKind::COORDS_KIND_HADEC_APP ||
PT::pairKind == MccCoordPairKind::COORDS_KIND_HADEC_OBS) {
cpair.setX(ha);
cpair.setY(dec);
} else if constexpr (PT::pairKind == MccCoordPairKind::COORDS_KIND_AZZD) {
cpair.setX(az);
cpair.setY(zd);
} else if constexpr (PT::pairKind == MccCoordPairKind::COORDS_KIND_AZALT) {
cpair.setX(az);
cpair.setY(half_pi - zd);
} else {
static_assert(true, "UNSUPPORTED SKY POINT TRANSFORMATION!");
}
} else if (cp_kind == MccCoordPairKind::COORDS_KIND_AZALT) {
if constexpr (PT::pairKind == MccCoordPairKind::COORDS_KIND_AZZD) {
zd = half_pi - alt;
cpair.setX(az);