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LSST Applications g013ef56533+63812263fb,g083dd6704c+a047e97985,g199a45376c+0ba108daf9,g1fd858c14a+fde7a7a78c,g210f2d0738+db0c280453,g262e1987ae+abed931625,g29ae962dfc+058d1915d8,g2cef7863aa+aef1011c0b,g35bb328faa+8c5ae1fdc5,g3fd5ace14f+64337f1634,g47891489e3+f459a6810c,g53246c7159+8c5ae1fdc5,g54cd7ddccb+890c8e1e5d,g5a60e81ecd+d9e514a434,g64539dfbff+db0c280453,g67b6fd64d1+f459a6810c,g6ebf1fc0d4+8c5ae1fdc5,g7382096ae9+36d16ea71a,g74acd417e5+c70e70fbf6,g786e29fd12+668abc6043,g87389fa792+8856018cbb,g89139ef638+f459a6810c,g8d7436a09f+1b779678e3,g8ea07a8fe4+81eaaadc04,g90f42f885a+34c0557caf,g97be763408+9583a964dd,g98a1a72a9c+028271c396,g98df359435+530b675b85,gb8cb2b794d+4e54f68785,gbf99507273+8c5ae1fdc5,gc2a301910b+db0c280453,gca7fc764a6+f459a6810c,gd7ef33dd92+f459a6810c,gdab6d2f7ff+c70e70fbf6,ge410e46f29+f459a6810c,ge41e95a9f2+db0c280453,geaed405ab2+e3b4b2a692,gf9a733ac38+8c5ae1fdc5,w.2025.43
LSST Data Management Base Package
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A 2-d coordinate transform represented by a pair of standard polynomials (one for each coordinate). More...
#include <PolynomialTransform.h>
Public Member Functions | |
| PolynomialTransform (ndarray::Array< double const, 2, 0 > const &xCoeffs, ndarray::Array< double const, 2, 0 > const &yCoeffs) | |
| Construct a new transform from existing coefficient arrays. | |
| PolynomialTransform (PolynomialTransform const &other) | |
| Copy constructor. | |
| PolynomialTransform (PolynomialTransform &&other) | |
| Move constructor. | |
| PolynomialTransform & | operator= (PolynomialTransform const &other) |
| Copy assignment. | |
| PolynomialTransform & | operator= (PolynomialTransform &&other) |
| Move constructor. | |
| void | swap (PolynomialTransform &other) |
| Lightweight swap. | |
| int | getOrder () const |
| Return the order of the polynomials. | |
| ndarray::Array< double const, 2, 2 > | getXCoeffs () const |
| 2-D polynomial coefficients that compute the output x coordinate. | |
| ndarray::Array< double const, 2, 2 > | getYCoeffs () const |
| 2-D polynomial coefficients that compute the output x coordinate. | |
| geom::AffineTransform | linearize (geom::Point2D const &in) const |
| Return an approximate affine transform at the given point. | |
| geom::Point2D | operator() (geom::Point2D const &in) const |
| Apply the transform to a point. | |
Static Public Member Functions | |
| static PolynomialTransform | convert (ScaledPolynomialTransform const &other) |
| Convert a ScaledPolynomialTransform to an equivalent PolynomialTransform. | |
| static PolynomialTransform | convert (SipForwardTransform const &other) |
| Convert a SipForwardTransform to an equivalent PolynomialTransform. | |
| static PolynomialTransform | convert (SipReverseTransform const &other) |
| Convert a SipReverseTransform to an equivalent PolynomialTransform. | |
Friends | |
| class | ScaledPolynomialTransformFitter |
| class | SipForwardTransform |
| class | SipReverseTransform |
| class | ScaledPolynomialTransform |
| PolynomialTransform | compose (geom::AffineTransform const &t1, PolynomialTransform const &t2) |
| Return a PolynomialTransform that is equivalent to the composition t1(t2()) | |
| PolynomialTransform | compose (PolynomialTransform const &t1, geom::AffineTransform const &t2) |
| Return a PolynomialTransform that is equivalent to the composition t1(t2()) | |
Related Symbols | |
(Note that these are not member symbols.) | |
| compose | |
A 2-d coordinate transform represented by a pair of standard polynomials (one for each coordinate).
PolynomialTransform instances should be confined to a single thread.
Definition at line 45 of file PolynomialTransform.h.
| lsst::meas::astrom::PolynomialTransform::PolynomialTransform | ( | ndarray::Array< double const, 2, 0 > const & | xCoeffs, |
| ndarray::Array< double const, 2, 0 > const & | yCoeffs ) |
Construct a new transform from existing coefficient arrays.
For both input arguments, the array element at [p, q] corresponds to the polynomial term x^p y^q.
Both arrays are expected be square and triangular; if N is the order of the transform, both arrays should be (N+1)x(N+1), and elements with p + q > N should be zero.
Definition at line 74 of file PolynomialTransform.cc.
| lsst::meas::astrom::PolynomialTransform::PolynomialTransform | ( | PolynomialTransform const & | other | ) |
Copy constructor.
Coefficient arrays are deep-copied.
Definition at line 97 of file PolynomialTransform.cc.
| lsst::meas::astrom::PolynomialTransform::PolynomialTransform | ( | PolynomialTransform && | other | ) |
Move constructor.
Coefficient arrays are moved.
Definition at line 103 of file PolynomialTransform.cc.
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Convert a ScaledPolynomialTransform to an equivalent PolynomialTransform.
Definition at line 36 of file PolynomialTransform.cc.
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Convert a SipForwardTransform to an equivalent PolynomialTransform.
Definition at line 40 of file PolynomialTransform.cc.
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Convert a SipReverseTransform to an equivalent PolynomialTransform.
Definition at line 51 of file PolynomialTransform.cc.
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Return the order of the polynomials.
Definition at line 107 of file PolynomialTransform.h.
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2-D polynomial coefficients that compute the output x coordinate.
Indexing the result by [p][q] gives the coefficient of \(x_{\mathrm{in}}^p\,y_{\mathrm{in}}^q\).
Definition at line 115 of file PolynomialTransform.h.
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2-D polynomial coefficients that compute the output x coordinate.
Indexing the result by [p][q] gives the coefficient of \(x_{\mathrm{in}}^p\,y_{\mathrm{in}}^q\).
Definition at line 123 of file PolynomialTransform.h.
| geom::AffineTransform lsst::meas::astrom::PolynomialTransform::linearize | ( | geom::Point2D const & | in | ) | const |
Return an approximate affine transform at the given point.
Definition at line 129 of file PolynomialTransform.cc.
| geom::Point2D lsst::meas::astrom::PolynomialTransform::operator() | ( | geom::Point2D const & | in | ) | const |
Apply the transform to a point.
Definition at line 157 of file PolynomialTransform.cc.
| PolynomialTransform & lsst::meas::astrom::PolynomialTransform::operator= | ( | PolynomialTransform && | other | ) |
Move constructor.
Coefficient arrays are moved.
Definition at line 115 of file PolynomialTransform.cc.
| PolynomialTransform & lsst::meas::astrom::PolynomialTransform::operator= | ( | PolynomialTransform const & | other | ) |
Copy assignment.
Coefficient arrays are deep-copied.
Definition at line 107 of file PolynomialTransform.cc.
| void lsst::meas::astrom::PolynomialTransform::swap | ( | PolynomialTransform & | other | ) |
Lightweight swap.
Definition at line 122 of file PolynomialTransform.cc.
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This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
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Return a PolynomialTransform that is equivalent to the composition t1(t2())
The returned composition would be exact in ideal arithmetic, but may suffer from significant round-off error for high-order polynomials.
Definition at line 214 of file PolynomialTransform.cc.
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Return a PolynomialTransform that is equivalent to the composition t1(t2())
The returned composition would be exact in ideal arithmetic, but may suffer from significant round-off error for high-order polynomials.
Definition at line 225 of file PolynomialTransform.cc.
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Definition at line 143 of file PolynomialTransform.h.
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Definition at line 140 of file PolynomialTransform.h.
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friend |
Definition at line 141 of file PolynomialTransform.h.
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Definition at line 142 of file PolynomialTransform.h.