lsst.jointcal
14.0-28-ge87de3a+1
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Implements the (forward) SIP distorsion scheme. More...
#include <Gtransfo.h>
Public Member Functions | |
TanSipPix2RaDec (const GtransfoLin &pix2Tan, const Point &tangentPoint, const GtransfoPoly *corrections=nullptr) | |
pix2Tan describes the transfo from pix to tangent plane (degrees). More... | |
GtransfoPoly | getPix2TangentPlane () const |
the transformation from pixels to tangent plane (degrees) More... | |
virtual void | pix2TP (double xPixel, double yPixel, double &xTangentPlane, double &yTangentPlane) const |
transforms from pixel space to tangent plane (degrees) More... | |
TanSipPix2RaDec () | |
std::unique_ptr< Gtransfo > | inverseTransfo (const double precision, const Frame ®ion) const |
Inverse transfo: returns a TanRaDec2Pix if there are no corrections, or the iterative solver if there are. More... | |
std::unique_ptr< Gtransfo > | clone () const |
returns a copy (allocated by new) of the transformation. More... | |
void | dump (std::ostream &stream) const |
dumps the transfo coefficients to stream. More... | |
double | fit (const StarMatchList &starMatchList) |
Not implemented yet, because we do it otherwise. More... | |
void | apply (const double xIn, const double yIn, double &xOut, double &yOut) const |
Transform pixels to ICRS RA, Dec in degrees. More... | |
void | apply (const Point &in, Point &out) const |
applies the tranfo to in and writes into out. Is indeed virtual. More... | |
Point | apply (const Point &in) const |
All these apply(..) shadow the virtual one in derived classes, unless one writes "using
Gtransfo::apply". More... | |
Point | getTangentPoint () const |
Get the sky origin (CRVAL in FITS WCS terminology) in degrees. More... | |
GtransfoLin | getLinPart () const |
The Linear part (corresponding to CD's and CRPIX's) More... | |
const GtransfoPoly * | getCorr () const |
Get a non-owning pointer to the correction transform polynomial. More... | |
void | setCorrections (std::unique_ptr< GtransfoPoly > corrections) |
Assign the correction polynomial (what it means is left to derived classes) More... | |
Point | getCrPix () const |
Get the pixel origin of the WCS (CRPIX in FITS WCS terminology, but zero-based) More... | |
std::string | __str__ () |
void | transformStar (FatPoint &in) const |
allows to write MyTransfo(MyStar) More... | |
virtual double | getJacobian (const Point &point) const |
returns the local jacobian. More... | |
virtual double | getJacobian (const double x, const double y) const |
returns the local jacobian. More... | |
virtual std::unique_ptr< Gtransfo > | reduceCompo (const Gtransfo *right) const |
to be overloaded by derived classes if they can really "reduce" the composition (e.g. More... | |
virtual void | computeDerivative (const Point &where, GtransfoLin &derivative, const double step=0.01) const |
Computes the local Derivative of a transfo, w.r.t. More... | |
virtual GtransfoLin | linearApproximation (const Point &where, const double step=0.01) const |
linear (local) approximation. More... | |
virtual void | transformPosAndErrors (const FatPoint &in, FatPoint &out) const |
virtual void | transformErrors (const Point &where, const double *vIn, double *vOut) const |
transform errors (represented as double[3] in order V(xx),V(yy),Cov(xy)) More... | |
void | getParams (double *params) const |
params should be at least Npar() long More... | |
void | offsetParams (Eigen::VectorXd const &delta) |
virtual double | paramRef (const int i) const |
virtual double & | paramRef (const int i) |
virtual void | paramDerivatives (const Point &where, double *dx, double *dy) const |
Derivative w.r.t parameters. More... | |
virtual std::unique_ptr< Gtransfo > | roughInverse (const Frame ®ion) const |
Rough inverse. More... | |
virtual int | getNpar () const |
returns the number of parameters (to compute chi2's) More... | |
void | write (const std::string &fileName) const |
virtual void | write (std::ostream &stream) const |
Protected Attributes | |
GtransfoLin | linPix2Tan |
std::unique_ptr< GtransfoPoly > | corr |
double | ra0 |
double | dec0 |
double | cos0 |
double | sin0 |
Implements the (forward) SIP distorsion scheme.
Definition at line 520 of file Gtransfo.h.
lsst::jointcal::TanSipPix2RaDec::TanSipPix2RaDec | ( | const GtransfoLin & | pix2Tan, |
const Point & | tangentPoint, | ||
const GtransfoPoly * | corrections = nullptr |
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pix2Tan describes the transfo from pix to tangent plane (degrees).
TangentPoint in degrees. Corrections are applied before Lin.
Definition at line 1393 of file Gtransfo.cc.
lsst::jointcal::TanSipPix2RaDec::TanSipPix2RaDec | ( | ) |
Definition at line 1398 of file Gtransfo.cc.
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inlineinherited |
Definition at line 60 of file Gtransfo.h.
applies the tranfo to in and writes into out. Is indeed virtual.
Definition at line 47 of file Gtransfo.h.
All these apply(..) shadow the virtual one in derived classes, unless one writes "using Gtransfo::apply".
Definition at line 51 of file Gtransfo.h.
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virtualinherited |
Transform pixels to ICRS RA, Dec in degrees.
Implements lsst::jointcal::Gtransfo.
Definition at line 1240 of file Gtransfo.cc.
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virtual |
returns a copy (allocated by new) of the transformation.
Implements lsst::jointcal::Gtransfo.
Definition at line 1433 of file Gtransfo.cc.
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virtualinherited |
Computes the local Derivative of a transfo, w.r.t.
the Derivative is represented by a GtransfoLin, in which (hopefully), the offset terms are zero.
position.
Step is used for numerical derivation.
Derivative should transform a vector of offsets into a vector of offsets.
Reimplemented in lsst::jointcal::GtransfoLin, lsst::jointcal::GtransfoPoly, and lsst::jointcal::GtransfoIdentity.
Definition at line 76 of file Gtransfo.cc.
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virtual |
dumps the transfo coefficients to stream.
Implements lsst::jointcal::Gtransfo.
Definition at line 1437 of file Gtransfo.cc.
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virtual |
Not implemented yet, because we do it otherwise.
Implements lsst::jointcal::Gtransfo.
Definition at line 1446 of file Gtransfo.cc.
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inlineinherited |
Get a non-owning pointer to the correction transform polynomial.
Definition at line 452 of file Gtransfo.h.
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inherited |
Get the pixel origin of the WCS (CRPIX in FITS WCS terminology, but zero-based)
Definition at line 1272 of file Gtransfo.cc.
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inlinevirtualinherited |
returns the local jacobian.
Definition at line 77 of file Gtransfo.h.
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virtualinherited |
returns the local jacobian.
Definition at line 57 of file Gtransfo.cc.
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inherited |
The Linear part (corresponding to CD's and CRPIX's)
Definition at line 1268 of file Gtransfo.cc.
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inlinevirtualinherited |
returns the number of parameters (to compute chi2's)
Reimplemented in lsst::jointcal::GtransfoLinScale, lsst::jointcal::GtransfoLinRot, lsst::jointcal::GtransfoLinShift, lsst::jointcal::GtransfoPoly, and lsst::jointcal::GtransfoIdentity.
Definition at line 132 of file Gtransfo.h.
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inherited |
params should be at least Npar() long
Definition at line 170 of file Gtransfo.cc.
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virtual |
the transformation from pixels to tangent plane (degrees)
Implements lsst::jointcal::BaseTanWcs.
Definition at line 1415 of file Gtransfo.cc.
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inherited |
Get the sky origin (CRVAL in FITS WCS terminology) in degrees.
Definition at line 1266 of file Gtransfo.cc.
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virtual |
Inverse transfo: returns a TanRaDec2Pix if there are no corrections, or the iterative solver if there are.
Reimplemented from lsst::jointcal::Gtransfo.
Definition at line 1410 of file Gtransfo.cc.
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virtualinherited |
linear (local) approximation.
Reimplemented in lsst::jointcal::GtransfoLin, and lsst::jointcal::GtransfoIdentity.
Definition at line 93 of file Gtransfo.cc.
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inherited |
Definition at line 175 of file Gtransfo.cc.
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virtualinherited |
Derivative w.r.t parameters.
Derivatives should be al least 2*NPar long. first Npar, for x, last Npar for y.
Reimplemented in lsst::jointcal::GtransfoPoly.
Definition at line 189 of file Gtransfo.cc.
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virtualinherited |
Reimplemented in lsst::jointcal::GtransfoPoly.
Definition at line 180 of file Gtransfo.cc.
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virtualinherited |
Reimplemented in lsst::jointcal::GtransfoPoly.
Definition at line 185 of file Gtransfo.cc.
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virtual |
transforms from pixel space to tangent plane (degrees)
Implements lsst::jointcal::BaseTanWcs.
Definition at line 1422 of file Gtransfo.cc.
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virtualinherited |
to be overloaded by derived classes if they can really "reduce" the composition (e.g.
composition of Polynomial can be reduced)
Reimplemented in lsst::jointcal::TanPix2RaDec, lsst::jointcal::GtransfoPoly, and lsst::jointcal::GtransfoIdentity.
Definition at line 53 of file Gtransfo.cc.
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virtualinherited |
Rough inverse.
Stored by the numerical inverter to guess starting point for the trials. Just here to enable overloading.
Reimplemented in lsst::jointcal::TanRaDec2Pix, lsst::jointcal::TanPix2RaDec, and lsst::jointcal::GtransfoInverse.
Definition at line 150 of file Gtransfo.cc.
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inherited |
Assign the correction polynomial (what it means is left to derived classes)
Definition at line 1270 of file Gtransfo.cc.
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virtualinherited |
transform errors (represented as double[3] in order V(xx),V(yy),Cov(xy))
Definition at line 117 of file Gtransfo.cc.
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virtualinherited |
Reimplemented in lsst::jointcal::TanRaDec2Pix, and lsst::jointcal::GtransfoPoly.
Definition at line 100 of file Gtransfo.cc.
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inlineinherited |
allows to write MyTransfo(MyStar)
Definition at line 74 of file Gtransfo.h.
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inherited |
Definition at line 199 of file Gtransfo.cc.
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virtualinherited |
Reimplemented in lsst::jointcal::GtransfoPoly, and lsst::jointcal::GtransfoIdentity.
Definition at line 209 of file Gtransfo.cc.
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protectedinherited |
Definition at line 472 of file Gtransfo.h.
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protectedinherited |
Definition at line 474 of file Gtransfo.h.
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protectedinherited |
Definition at line 473 of file Gtransfo.h.
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protectedinherited |
Definition at line 470 of file Gtransfo.h.
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protectedinherited |
Definition at line 473 of file Gtransfo.h.
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protectedinherited |
Definition at line 474 of file Gtransfo.h.