LSST Applications
21.0.0-172-gfb10e10a+18fedfabac,22.0.0+297cba6710,22.0.0+80564b0ff1,22.0.0+8d77f4f51a,22.0.0+a28f4c53b1,22.0.0+dcf3732eb2,22.0.1-1-g7d6de66+2a20fdde0d,22.0.1-1-g8e32f31+297cba6710,22.0.1-1-geca5380+7fa3b7d9b6,22.0.1-12-g44dc1dc+2a20fdde0d,22.0.1-15-g6a90155+515f58c32b,22.0.1-16-g9282f48+790f5f2caa,22.0.1-2-g92698f7+dcf3732eb2,22.0.1-2-ga9b0f51+7fa3b7d9b6,22.0.1-2-gd1925c9+bf4f0e694f,22.0.1-24-g1ad7a390+a9625a72a8,22.0.1-25-g5bf6245+3ad8ecd50b,22.0.1-25-gb120d7b+8b5510f75f,22.0.1-27-g97737f7+2a20fdde0d,22.0.1-32-gf62ce7b1+aa4237961e,22.0.1-4-g0b3f228+2a20fdde0d,22.0.1-4-g243d05b+871c1b8305,22.0.1-4-g3a563be+32dcf1063f,22.0.1-4-g44f2e3d+9e4ab0f4fa,22.0.1-42-gca6935d93+ba5e5ca3eb,22.0.1-5-g15c806e+85460ae5f3,22.0.1-5-g58711c4+611d128589,22.0.1-5-g75bb458+99c117b92f,22.0.1-6-g1c63a23+7fa3b7d9b6,22.0.1-6-g50866e6+84ff5a128b,22.0.1-6-g8d3140d+720564cf76,22.0.1-6-gd805d02+cc5644f571,22.0.1-8-ge5750ce+85460ae5f3,master-g6e05de7fdc+babf819c66,master-g99da0e417a+8d77f4f51a,w.2021.48
LSST Data Management Base Package
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2-dimensional weighted sum of Chebyshev polynomials of the first kind. More...
#include <FunctionLibrary.h>
Public Member Functions | |
Chebyshev1Function2 (unsigned int order, lsst::geom::Box2D const &xyRange=lsst::geom::Box2D(lsst::geom::Point2D(-1.0, -1.0), lsst::geom::Point2D(1.0, 1.0))) | |
Construct a Chebyshev polynomial of specified order and range. More... | |
Chebyshev1Function2 (std::vector< double > params, lsst::geom::Box2D const &xyRange=lsst::geom::Box2D(lsst::geom::Point2D(-1.0, -1.0), lsst::geom::Point2D(1.0, 1.0))) | |
Construct a Chebyshev polynomial with specified parameters and range. More... | |
Chebyshev1Function2 (Chebyshev1Function2 const &)=default | |
Chebyshev1Function2 (Chebyshev1Function2 &&)=default | |
Chebyshev1Function2 & | operator= (Chebyshev1Function2 const &)=default |
Chebyshev1Function2 & | operator= (Chebyshev1Function2 &&)=default |
~Chebyshev1Function2 () noexcept override=default | |
std::shared_ptr< Function2< ReturnT > > | clone () const override |
Return a pointer to a deep copy of this function. More... | |
lsst::geom::Box2D | getXYRange () const noexcept |
Get x,y range. More... | |
virtual Chebyshev1Function2 | truncate (int truncOrder) const |
Return a truncated copy of lower (or equal) order. More... | |
ReturnT | operator() (double x, double y) const override |
std::string | toString (std::string const &prefix) const override |
Return a string representation of the function. More... | |
bool | isPersistable () const noexcept override |
Return true if this particular object can be persisted using afw::table::io. More... | |
int | getOrder () const noexcept |
Get the polynomial order. More... | |
bool | isLinearCombination () const noexcept override |
Is the function a linear combination of its parameters? More... | |
std::vector< double > | getDFuncDParameters (double x, double y) const override |
Return the derivative of the Function with respect to its parameters. More... | |
unsigned int | getNParameters () const noexcept |
Return the number of function parameters. More... | |
virtual double | getParameter (unsigned int ind) const |
Get one function parameter without range checking. More... | |
std::vector< double > const & | getParameters () const noexcept |
Return all function parameters. More... | |
void | setParameter (unsigned int ind, double newValue) |
Set one function parameter without range checking. More... | |
void | setParameters (std::vector< double > const ¶ms) |
Set all function parameters. More... | |
void | writeFits (std::string const &fileName, std::string const &mode="w") const |
Write the object to a regular FITS file. More... | |
void | writeFits (fits::MemFileManager &manager, std::string const &mode="w") const |
Write the object to a FITS image in memory. More... | |
void | writeFits (fits::Fits &fitsfile) const |
Write the object to an already-open FITS object. More... | |
Static Public Member Functions | |
static int | nParametersFromOrder (int order) |
Compute number of parameters from polynomial order. More... | |
static int | orderFromNParameters (int nParameters) |
Compute polynomial order from the number of parameters. More... | |
static std::shared_ptr< Function2< ReturnT > > | readFits (fits::Fits &fitsfile) |
Read an object from an already open FITS object. More... | |
static std::shared_ptr< Function2< ReturnT > > | readFits (std::string const &fileName, int hdu=fits::DEFAULT_HDU) |
Read an object from a regular FITS file. More... | |
static std::shared_ptr< Function2< ReturnT > > | readFits (fits::MemFileManager &manager, int hdu=fits::DEFAULT_HDU) |
Read an object from a FITS file in memory. More... | |
static std::shared_ptr< Function< ReturnT > > | readFits (fits::Fits &fitsfile) |
Read an object from an already open FITS object. More... | |
static std::shared_ptr< Function< ReturnT > > | readFits (std::string const &fileName, int hdu=fits::DEFAULT_HDU) |
Read an object from a regular FITS file. More... | |
static std::shared_ptr< Function< ReturnT > > | readFits (fits::MemFileManager &manager, int hdu=fits::DEFAULT_HDU) |
Read an object from a FITS file in memory. More... | |
static std::shared_ptr< Function2< ReturnT > > | dynamicCast (std::shared_ptr< Persistable > const &ptr) |
Dynamically cast a shared_ptr. More... | |
static std::shared_ptr< Function< ReturnT > > | dynamicCast (std::shared_ptr< Persistable > const &ptr) |
Dynamically cast a shared_ptr. More... | |
Protected Types | |
using | OutputArchiveHandle = io::OutputArchiveHandle |
Protected Member Functions | |
std::string | getPersistenceName () const override |
Return the unique name used to persist this object and look up its factory. More... | |
void | write (afw::table::io::OutputArchiveHandle &handle) const override |
Write the object to one or more catalogs. More... | |
Chebyshev1Function2 () | |
std::string | getPythonModule () const override |
Return the fully-qualified Python module that should be imported to guarantee that its factory is registered. More... | |
Protected Attributes | |
int | _order |
order of polynomial More... | |
std::vector< double > | _params |
bool | _isCacheValid |
2-dimensional weighted sum of Chebyshev polynomials of the first kind.
f(x,y) = c0 T0(x') T0(y') # order 0
= c0 # order 0
where:
Return value is incorrect if function arguments are not in the range [minX, maxX], [minY, maxY].
Definition at line 719 of file FunctionLibrary.h.
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protectedinherited |
Definition at line 108 of file Persistable.h.
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inlineexplicit |
Construct a Chebyshev polynomial of specified order and range.
The parameters are initialized to zero.
order | order of polynomial (0 for constant) |
xyRange | allowed x,y range |
Definition at line 726 of file FunctionLibrary.h.
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inlineexplicit |
Construct a Chebyshev polynomial with specified parameters and range.
The order of the polynomial is set to the length of the params vector.
lsst::pex::exceptions::InvalidParameterError | if params is empty |
params | polynomial coefficients length must be one of 1, 3, 6, 10, 15... |
xyRange | allowed x,y range |
Definition at line 744 of file FunctionLibrary.h.
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default |
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default |
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overridedefaultnoexcept |
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inlineexplicitprotected |
Definition at line 899 of file FunctionLibrary.h.
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inlineoverridevirtual |
Return a pointer to a deep copy of this function.
This function exists instead of a copy constructor so one can obtain a copy of an actual function instead of a useless copy of the base class.
Every non-virtual function must override this method.
Implements lsst::afw::math::Function2< ReturnT >.
Definition at line 762 of file FunctionLibrary.h.
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staticinherited |
Dynamically cast a shared_ptr.
Dynamically cast a shared pointer and raise on failure.
You must provide an explicit template instantiation in the .cc file for each class that inherits from PersistableFacade. Designed to work around RTTI issues on macOS with hidden symbols;
lsst::pex::exceptions::LogicError | if the cast fails |
param[in] ptr The pointer to be cast.
lsst::pex::exceptions::TypeError | If the dynamic cast fails. |
Definition at line 218 of file Persistable.cc.
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staticinherited |
Dynamically cast a shared_ptr.
Dynamically cast a shared pointer and raise on failure.
You must provide an explicit template instantiation in the .cc file for each class that inherits from PersistableFacade. Designed to work around RTTI issues on macOS with hidden symbols;
lsst::pex::exceptions::LogicError | if the cast fails |
param[in] ptr The pointer to be cast.
lsst::pex::exceptions::TypeError | If the dynamic cast fails. |
Definition at line 218 of file Persistable.cc.
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inlineoverridevirtualinherited |
Return the derivative of the Function with respect to its parameters.
Because this is a polynomial, c0 F0(x,y) + c1 F1(x,y) + c2 F2(x,y) + ... we can set ci = 0 for all i except the parameter of interest and evaluate. This isn't necessarily the most efficient algorithm, but it's general, and you can override it if it isn't suitable for your particular subclass.
Reimplemented from lsst::afw::math::Function2< ReturnT >.
Reimplemented in lsst::afw::math::PolynomialFunction2< ReturnT >.
Definition at line 411 of file Function.h.
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inlinenoexceptinherited |
Return the number of function parameters.
Definition at line 112 of file Function.h.
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inlinenoexceptinherited |
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inlinevirtualinherited |
Get one function parameter without range checking.
ind | index of parameter |
Definition at line 119 of file Function.h.
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inlinenoexceptinherited |
Return all function parameters.
Definition at line 129 of file Function.h.
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overrideprotectedvirtual |
Return the unique name used to persist this object and look up its factory.
Must be less than ArchiveIndexSchema::MAX_NAME_LENGTH characters.
Reimplemented from lsst::afw::table::io::Persistable.
Definition at line 212 of file FunctionLibrary.cc.
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inlineoverrideprotectedvirtualinherited |
Return the fully-qualified Python module that should be imported to guarantee that its factory is registered.
Must be less than ArchiveIndexSchema::MAX_MODULE_LENGTH characters.
Will be ignored if empty.
Reimplemented from lsst::afw::table::io::Persistable.
Definition at line 188 of file Function.h.
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inlinenoexcept |
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inlineoverridevirtualnoexceptinherited |
Is the function a linear combination of its parameters?
Reimplemented from lsst::afw::math::Function< ReturnT >.
Definition at line 362 of file Function.h.
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inlineoverridevirtualnoexcept |
Return true if this particular object can be persisted using afw::table::io.
Reimplemented from lsst::afw::table::io::Persistable.
Definition at line 863 of file FunctionLibrary.h.
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inlinestaticinherited |
Compute number of parameters from polynomial order.
lsst::pex::exceptions::InvalidParameterError | if order < 0 |
Definition at line 369 of file Function.h.
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inlineoverridevirtual |
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default |
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default |
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inlinestaticinherited |
Compute polynomial order from the number of parameters.
Only certain values of nParameters are acceptable, including: nParameters order 1 0 3 1 6 2 10 3 15 4 ...
lsst::pex::exceptions::InvalidParameterError | if nParameters is invalid |
Definition at line 392 of file Function.h.
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inlinestaticinherited |
Read an object from an already open FITS object.
[in] | fitsfile | FITS object to read from, already positioned at the desired HDU. |
Definition at line 183 of file Persistable.h.
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inlinestaticinherited |
Read an object from an already open FITS object.
[in] | fitsfile | FITS object to read from, already positioned at the desired HDU. |
Definition at line 183 of file Persistable.h.
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inlinestaticinherited |
Read an object from a FITS file in memory.
[in] | manager | Manager for the memory to read from. |
[in] | hdu | HDU to read, where 0 is the primary. The special value of afw::fits::DEFAULT_HDU skips the primary HDU if it is empty. |
Definition at line 205 of file Persistable.h.
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inlinestaticinherited |
Read an object from a FITS file in memory.
[in] | manager | Manager for the memory to read from. |
[in] | hdu | HDU to read, where 0 is the primary. The special value of afw::fits::DEFAULT_HDU skips the primary HDU if it is empty. |
Definition at line 205 of file Persistable.h.
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inlinestaticinherited |
Read an object from a regular FITS file.
[in] | fileName | Name of the file to read. |
[in] | hdu | HDU to read, where 0 is the primary. The special value of afw::fits::DEFAULT_HDU skips the primary HDU if it is empty. |
Definition at line 194 of file Persistable.h.
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inlinestaticinherited |
Read an object from a regular FITS file.
[in] | fileName | Name of the file to read. |
[in] | hdu | HDU to read, where 0 is the primary. The special value of afw::fits::DEFAULT_HDU skips the primary HDU if it is empty. |
Definition at line 194 of file Persistable.h.
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inlineinherited |
Set one function parameter without range checking.
ind | index of parameter |
newValue | new value for parameter |
Definition at line 143 of file Function.h.
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inlineinherited |
Set all function parameters.
lsst::pex::exceptions::InvalidParameterError | if the wrong number of parameters is supplied. |
params | vector of function parameters |
Definition at line 156 of file Function.h.
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inlineoverridevirtual |
Return a string representation of the function.
Reimplemented from lsst::afw::math::Function2< ReturnT >.
Definition at line 855 of file FunctionLibrary.h.
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inlinevirtual |
Return a truncated copy of lower (or equal) order.
lsst::pex::exceptions::InvalidParameter | if truncated order > original order |
truncOrder | order of truncated polynomial |
Definition at line 779 of file FunctionLibrary.h.
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overrideprotectedvirtual |
Write the object to one or more catalogs.
The handle object passed to this function provides an interface for adding new catalogs and adding nested objects to the same archive (while checking for duplicates). See OutputArchiveHandle for more information.
Reimplemented from lsst::afw::table::io::Persistable.
Definition at line 247 of file FunctionLibrary.cc.
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inherited |
Write the object to an already-open FITS object.
[in] | fitsfile | Open FITS object to write to. |
Definition at line 18 of file Persistable.cc.
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inherited |
Write the object to a FITS image in memory.
[in] | manager | Name of the file to write to. |
[in] | mode | If "w", any existing file with the given name will be overwritten. If "a", new HDUs will be appended to an existing file. |
Definition at line 29 of file Persistable.cc.
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inherited |
Write the object to a regular FITS file.
[in] | fileName | Name of the file to write to. |
[in] | mode | If "w", any existing file with the given name will be overwritten. If "a", new HDUs will be appended to an existing file. |
Definition at line 24 of file Persistable.cc.
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mutableprotectedinherited |
Definition at line 186 of file Function.h.
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protectedinherited |
order of polynomial
Definition at line 431 of file Function.h.
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protectedinherited |
Definition at line 185 of file Function.h.