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LSST Data Management Base Package
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2-dimensional separable Lanczos function More...
#include <FunctionLibrary.h>
Public Member Functions | |
LanczosFunction2 (unsigned int n, double xOffset=0.0, double yOffset=0.0) | |
Construct a Lanczos function of specified order and x,y offset. | |
LanczosFunction2 (LanczosFunction2 const &)=default | |
LanczosFunction2 (LanczosFunction2 &&)=default | |
LanczosFunction2 & | operator= (LanczosFunction2 const &)=default |
LanczosFunction2 & | operator= (LanczosFunction2 &&)=default |
~LanczosFunction2 () noexcept override=default | |
std::shared_ptr< Function2< ReturnT > > | clone () const override |
Return a pointer to a deep copy of this function. | |
ReturnT | operator() (double x, double y) const noexcept(IS_NOTHROW_INIT< ReturnT >) override |
unsigned int | getOrder () const noexcept |
Get the order of Lanczos function. | |
std::string | toString (std::string const &prefix) const override |
Return a string representation of the function. | |
virtual std::vector< double > | getDFuncDParameters (double, double) const |
Return the derivative of the Function with respect to its parameters. | |
unsigned int | getNParameters () const noexcept |
Return the number of function parameters. | |
virtual double | getParameter (unsigned int ind) const |
Get one function parameter without range checking. | |
std::vector< double > const & | getParameters () const noexcept |
Return all function parameters. | |
virtual bool | isLinearCombination () const noexcept |
Is the function a linear combination of its parameters? | |
void | setParameter (unsigned int ind, double newValue) |
Set one function parameter without range checking. | |
void | setParameters (std::vector< double > const ¶ms) |
Set all function parameters. | |
void | writeFits (std::string const &fileName, std::string const &mode="w") const |
Write the object to a regular FITS file. | |
void | writeFits (fits::MemFileManager &manager, std::string const &mode="w") const |
Write the object to a FITS image in memory. | |
void | writeFits (fits::Fits &fitsfile) const |
Write the object to an already-open FITS object. | |
virtual bool | isPersistable () const noexcept |
Return true if this particular object can be persisted using afw::table::io. | |
Static Public Member Functions | |
static std::shared_ptr< Function2< ReturnT > > | readFits (fits::Fits &fitsfile) |
Read an object from an already open FITS object. | |
static std::shared_ptr< Function2< ReturnT > > | readFits (std::string const &fileName, int hdu=fits::DEFAULT_HDU) |
Read an object from a regular FITS file. | |
static std::shared_ptr< Function2< ReturnT > > | readFits (fits::MemFileManager &manager, int hdu=fits::DEFAULT_HDU) |
Read an object from a FITS file in memory. | |
static std::shared_ptr< Function< ReturnT > > | readFits (fits::Fits &fitsfile) |
Read an object from an already open FITS object. | |
static std::shared_ptr< Function< ReturnT > > | readFits (std::string const &fileName, int hdu=fits::DEFAULT_HDU) |
Read an object from a regular FITS file. | |
static std::shared_ptr< Function< ReturnT > > | readFits (fits::MemFileManager &manager, int hdu=fits::DEFAULT_HDU) |
Read an object from a FITS file in memory. | |
static std::shared_ptr< Function2< ReturnT > > | dynamicCast (std::shared_ptr< Persistable > const &ptr) |
Dynamically cast a shared_ptr. | |
static std::shared_ptr< Function< ReturnT > > | dynamicCast (std::shared_ptr< Persistable > const &ptr) |
Dynamically cast a shared_ptr. | |
Protected Types | |
using | OutputArchiveHandle = io::OutputArchiveHandle |
Protected Member Functions | |
LanczosFunction2 () | |
std::string | getPythonModule () const override |
Return the fully-qualified Python module that should be imported to guarantee that its factory is registered. | |
virtual std::string | getPersistenceName () const |
Return the unique name used to persist this object and look up its factory. | |
virtual void | write (OutputArchiveHandle &handle) const |
Write the object to one or more catalogs. | |
Protected Attributes | |
std::vector< double > | _params |
bool | _isCacheValid |
2-dimensional separable Lanczos function
f(x, y) = sinc(pi x') sinc(pi x' / n) sinc(pi y') sinc(pi y' / n) where x' = x - xOffset and y' = y - yOffset and coefficients c0 = xOffset, c1 = yOffset
Definition at line 990 of file FunctionLibrary.h.
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protectedinherited |
Definition at line 108 of file Persistable.h.
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inlineexplicit |
Construct a Lanczos function of specified order and x,y offset.
n | order of Lanczos function |
xOffset | x offset |
yOffset | y offset |
Definition at line 995 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 1048 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 1009 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::BasePolynomialFunction2< ReturnT >, and lsst::afw::math::PolynomialFunction2< 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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inlinenoexcept |
Get the order of Lanczos function.
Definition at line 1033 of file FunctionLibrary.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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protectedvirtualinherited |
Return the unique name used to persist this object and look up its factory.
Must be less than ArchiveIndexSchema::MAX_NAME_LENGTH characters.
Reimplemented in lsst::afw::image::FilterLabel, lsst::afw::cameraGeom::Camera, lsst::afw::cameraGeom::Detector, lsst::afw::cameraGeom::DetectorCollection, lsst::afw::cameraGeom::TransformMap, lsst::afw::detection::Footprint, lsst::afw::detection::GaussianPsf, lsst::afw::detection::HeavyFootprint< ImagePixelT, MaskPixelT, VariancePixelT >, lsst::afw::geom::polygon::Polygon, lsst::afw::geom::SkyWcs, lsst::afw::geom::SpanSet, lsst::afw::geom::Transform< FromEndpoint, ToEndpoint >, lsst::afw::geom::Transform< afw::geom::Point2Endpoint, afw::geom::GenericEndpoint >, lsst::afw::image::ApCorrMap, lsst::afw::image::CoaddInputs, lsst::afw::image::PhotoCalib, lsst::afw::image::VisitInfo, lsst::afw::math::ChebyshevBoundedField, lsst::afw::math::GaussianFunction2< ReturnT >, lsst::afw::math::DoubleGaussianFunction2< ReturnT >, lsst::afw::math::PolynomialFunction2< ReturnT >, lsst::afw::math::Chebyshev1Function2< ReturnT >, lsst::afw::math::FixedKernel, lsst::afw::math::AnalyticKernel, lsst::afw::math::DeltaFunctionKernel, lsst::afw::math::LinearCombinationKernel, lsst::afw::math::PixelAreaBoundedField, lsst::afw::math::ProductBoundedField, lsst::afw::math::TransformBoundedField, lsst::afw::math::LanczosWarpingKernel, lsst::afw::math::BilinearWarpingKernel, lsst::afw::math::NearestWarpingKernel, lsst::afw::math::WarpingControl, lsst::afw::typehandling::StorableHelper< Base >, lsst::meas::algorithms::CoaddBoundedField, lsst::meas::algorithms::CoaddPsf, lsst::meas::algorithms::DoubleGaussianPsf, lsst::meas::algorithms::KernelPsf, lsst::meas::algorithms::PcaPsf, lsst::meas::algorithms::SingleGaussianPsf, lsst::meas::algorithms::WarpedPsf, lsst::meas::extensions::psfex::PsfexPsf, and lsst::meas::modelfit::Mixture.
Definition at line 34 of file Persistable.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::BasePolynomialFunction2< ReturnT >, lsst::afw::math::PolynomialFunction1< ReturnT >, and lsst::afw::math::Chebyshev1Function1< ReturnT >.
Definition at line 138 of file Function.h.
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inlinevirtualnoexceptinherited |
Return true if this particular object can be persisted using afw::table::io.
Reimplemented in lsst::afw::cameraGeom::Camera, lsst::afw::cameraGeom::Detector, lsst::afw::cameraGeom::DetectorCollection, lsst::afw::cameraGeom::TransformMap, lsst::afw::detection::Footprint, lsst::afw::detection::GaussianPsf, lsst::afw::geom::polygon::Polygon, lsst::afw::geom::SkyWcs, lsst::afw::geom::SpanSet, lsst::afw::geom::Transform< FromEndpoint, ToEndpoint >, lsst::afw::geom::Transform< afw::geom::Point2Endpoint, afw::geom::GenericEndpoint >, lsst::afw::image::ApCorrMap, lsst::afw::image::CoaddInputs, lsst::afw::image::FilterLabel, lsst::afw::image::PhotoCalib, lsst::afw::image::VisitInfo, lsst::afw::math::ChebyshevBoundedField, lsst::afw::math::GaussianFunction2< ReturnT >, lsst::afw::math::DoubleGaussianFunction2< ReturnT >, lsst::afw::math::PolynomialFunction2< ReturnT >, lsst::afw::math::Chebyshev1Function2< ReturnT >, lsst::afw::math::FixedKernel, lsst::afw::math::AnalyticKernel, lsst::afw::math::DeltaFunctionKernel, lsst::afw::math::LinearCombinationKernel, lsst::afw::math::PixelAreaBoundedField, lsst::afw::math::ProductBoundedField, lsst::afw::math::TransformBoundedField, lsst::afw::math::LanczosWarpingKernel, lsst::afw::math::BilinearWarpingKernel, lsst::afw::math::NearestWarpingKernel, lsst::afw::math::WarpingControl, lsst::afw::typehandling::StorableHelper< Base >, lsst::meas::algorithms::CoaddBoundedField, lsst::meas::algorithms::CoaddPsf, lsst::meas::algorithms::DoubleGaussianPsf, lsst::meas::algorithms::KernelPsf, lsst::meas::algorithms::SingleGaussianPsf, lsst::meas::algorithms::WarpedPsf, lsst::meas::extensions::psfex::PsfexPsf, and lsst::meas::modelfit::Mixture.
Definition at line 102 of file Persistable.h.
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inlineoverridevirtualnoexcept |
Implements lsst::afw::math::Function2< ReturnT >.
Definition at line 1014 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 1035 of file FunctionLibrary.h.
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protectedvirtualinherited |
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 in lsst::afw::math::GaussianFunction2< ReturnT >, lsst::afw::math::DoubleGaussianFunction2< ReturnT >, lsst::afw::math::PolynomialFunction2< ReturnT >, lsst::afw::math::Chebyshev1Function2< ReturnT >, lsst::meas::extensions::psfex::PsfexPsf, lsst::afw::cameraGeom::Camera, lsst::afw::cameraGeom::Detector, lsst::afw::cameraGeom::DetectorCollection, lsst::afw::cameraGeom::TransformMap, lsst::afw::detection::Footprint, lsst::afw::detection::GaussianPsf, lsst::afw::detection::HeavyFootprint< ImagePixelT, MaskPixelT, VariancePixelT >, lsst::afw::geom::polygon::Polygon, lsst::afw::geom::SkyWcs, lsst::afw::geom::SpanSet, lsst::afw::geom::Transform< FromEndpoint, ToEndpoint >, lsst::afw::geom::Transform< afw::geom::Point2Endpoint, afw::geom::GenericEndpoint >, lsst::afw::image::ApCorrMap, lsst::afw::image::CoaddInputs, lsst::afw::image::PhotoCalib, lsst::afw::image::VisitInfo, lsst::afw::math::ChebyshevBoundedField, lsst::afw::math::FixedKernel, lsst::afw::math::AnalyticKernel, lsst::afw::math::DeltaFunctionKernel, lsst::afw::math::LinearCombinationKernel, lsst::afw::math::PixelAreaBoundedField, lsst::afw::math::ProductBoundedField, lsst::afw::math::TransformBoundedField, lsst::afw::math::LanczosWarpingKernel, lsst::afw::math::BilinearWarpingKernel, lsst::afw::math::NearestWarpingKernel, lsst::afw::math::WarpingControl, lsst::meas::algorithms::CoaddBoundedField, lsst::meas::algorithms::CoaddPsf, lsst::meas::algorithms::DoubleGaussianPsf, lsst::meas::algorithms::KernelPsf, lsst::meas::algorithms::SingleGaussianPsf, lsst::meas::algorithms::WarpedPsf, lsst::meas::modelfit::Mixture, lsst::afw::image::FilterLabel, and lsst::afw::typehandling::StorableHelper< Base >.
Definition at line 38 of file Persistable.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.