LSST Applications 27.0.0,g0265f82a02+469cd937ee,g02d81e74bb+21ad69e7e1,g1470d8bcf6+cbe83ee85a,g2079a07aa2+e67c6346a6,g212a7c68fe+04a9158687,g2305ad1205+94392ce272,g295015adf3+81dd352a9d,g2bbee38e9b+469cd937ee,g337abbeb29+469cd937ee,g3939d97d7f+72a9f7b576,g487adcacf7+71499e7cba,g50ff169b8f+5929b3527e,g52b1c1532d+a6fc98d2e7,g591dd9f2cf+df404f777f,g5a732f18d5+be83d3ecdb,g64a986408d+21ad69e7e1,g858d7b2824+21ad69e7e1,g8a8a8dda67+a6fc98d2e7,g99cad8db69+f62e5b0af5,g9ddcbc5298+d4bad12328,ga1e77700b3+9c366c4306,ga8c6da7877+71e4819109,gb0e22166c9+25ba2f69a1,gb6a65358fc+469cd937ee,gbb8dafda3b+69d3c0e320,gc07e1c2157+a98bf949bb,gc120e1dc64+615ec43309,gc28159a63d+469cd937ee,gcf0d15dbbd+72a9f7b576,gdaeeff99f8+a38ce5ea23,ge6526c86ff+3a7c1ac5f1,ge79ae78c31+469cd937ee,gee10cc3b42+a6fc98d2e7,gf1cff7945b+21ad69e7e1,gfbcc870c63+9a11dc8c8f
LSST Data Management Base Package
|
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.
|
static |
Convert a ScaledPolynomialTransform to an equivalent PolynomialTransform.
Definition at line 36 of file PolynomialTransform.cc.
|
static |
Convert a SipForwardTransform to an equivalent PolynomialTransform.
Definition at line 40 of file PolynomialTransform.cc.
|
static |
Convert a SipReverseTransform to an equivalent PolynomialTransform.
Definition at line 51 of file PolynomialTransform.cc.
|
inline |
Return the order of the polynomials.
Definition at line 107 of file PolynomialTransform.h.
|
inline |
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.
|
inline |
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.
|
related |
This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
|
friend |
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.
|
friend |
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.
|
friend |
Definition at line 143 of file PolynomialTransform.h.
|
friend |
Definition at line 140 of file PolynomialTransform.h.
|
friend |
Definition at line 141 of file PolynomialTransform.h.
|
friend |
Definition at line 142 of file PolynomialTransform.h.