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 Gaussian More...
#include <FunctionLibrary.h>
Public Member Functions | |
GaussianFunction2 (double sigma1, double sigma2, double angle=0.0) | |
Construct a 2-dimensional Gaussian function. More... | |
GaussianFunction2 (GaussianFunction2 const &)=default | |
GaussianFunction2 (GaussianFunction2 &&)=default | |
GaussianFunction2 & | operator= (GaussianFunction2 const &)=default |
GaussianFunction2 & | operator= (GaussianFunction2 &&)=default |
~GaussianFunction2 () noexcept override=default | |
std::shared_ptr< Function2< ReturnT > > | clone () const override |
Return a pointer to a deep copy of this function. More... | |
ReturnT | operator() (double x, double y) const noexcept(IS_NOTHROW_INIT< ReturnT >) 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... | |
virtual std::vector< double > | getDFuncDParameters (double, double) const |
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... | |
virtual bool | isLinearCombination () const noexcept |
Is the function a linear combination of its 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 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... | |
GaussianFunction2 () | |
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 | |
std::vector< double > | _params |
bool | _isCacheValid |
2-dimensional Gaussian
f(x,y) = A e^((-pos1^2 / 2 sigma1^2) - (pos2^2 / 2 sigma2^2)) where:
Definition at line 201 of file FunctionLibrary.h.
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protectedinherited |
Definition at line 108 of file Persistable.h.
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inlineexplicit |
Construct a 2-dimensional Gaussian function.
sigma1 | sigma along the pos1 axis |
sigma2 | sigma along the pos2 axis |
angle | angle of pos1 axis, in rad (along x=0, y=pi/2) |
Definition at line 206 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 282 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 222 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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inlinevirtualinherited |
Return the derivative of the Function with respect to its parameters.
Reimplemented in lsst::afw::math::PolynomialFunction2< ReturnT >, and lsst::afw::math::BasePolynomialFunction2< ReturnT >.
Definition at line 305 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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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 197 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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inlinevirtualnoexceptinherited |
Is the function a linear combination of its parameters?
Reimplemented in lsst::afw::math::Chebyshev1Function1< ReturnT >, lsst::afw::math::PolynomialFunction1< ReturnT >, and lsst::afw::math::BasePolynomialFunction2< ReturnT >.
Definition at line 138 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 245 of file FunctionLibrary.h.
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inlineoverridevirtualnoexcept |
Implements lsst::afw::math::Function2< ReturnT >.
Definition at line 227 of file FunctionLibrary.h.
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default |
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default |
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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 238 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 217 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 |
Definition at line 185 of file Function.h.