File PolymorphicValue.h

template<>
struct hash<lsst::afw::typehandling::PolymorphicValue>
#include <PolymorphicValue.h>

Hash specialization for PolymorphicValue.

Return

the hash of the Storable inside the PolymorphicValue, or an arbitrary value if it is empty

Exceptions

  • UnsupportedOperationException: Thrown if the Storable is not hashable.

Public Types

template<>
using argument_type = lsst::afw::typehandling::PolymorphicValue
template<>
using result_type = size_t

Public Functions

size_t operator()(argument_type const &obj) const
namespace lsst

Class for a simple mapping implementing a generic AstrometryTransform.

Remove all non-astronomical counts from the Chunk Exposure’s pixels.

Forward declarations for lsst::utils::Cache

For details on the Cache class, see the Cache.h file.

It uses a template rather than a pointer so that the derived classes can use the specifics of the transform. The class simplePolyMapping overloads a few routines.

A base class for image defects

Numeric constants used by the Integrate.h integrator routines.

Compute Image Statistics

Note

Gauss-Kronrod-Patterson quadrature coefficients for use in quadpack routine qng. These coefficients were calculated with 101 decimal digit arithmetic by L. W. Fullerton, Bell Labs, Nov 1981.

Note

The Statistics class itself can only handle lsst::afw::image::MaskedImage() types. The philosophy has been to handle other types by making them look like lsst::afw::image::MaskedImage() and reusing that code. Users should have no need to instantiate a Statistics object directly, but should use the overloaded makeStatistics() factory functions.

namespace afw
namespace typehandling

Functions

void swap(PolymorphicValue &lhs, PolymorphicValue &rhs)

Swap specialization for PolymorphicValue.

class PolymorphicValue
#include <PolymorphicValue.h>

Container that passes Storable objects by value while preserving type.

This class is implicitly convertible to and from a reference to Storable, but behaves like a value: changing the internal Storable changes the object’s state, and copying the object creates a new Storable.

Note

While a PolymorphicValue is always initialized with a Storable, it may become empty if it is the source of a move-construction or move-assignment. Conversion of an empty value to Storable& throws.

Unnamed Group

PolymorphicValue(PolymorphicValue const &other)

Try to copy a PolymorphicValue.

Parameters
Exceptions

  • UnsupportedOperationException: Thrown if a copy is required and the object in other does not implement Storable::cloneStorable.

PolymorphicValue(PolymorphicValue &&other)

Unnamed Group

PolymorphicValue &operator=(PolymorphicValue const &other)

Try to assign a PolymorphicValue.

To preserve the run-time type of the object in other, this method swaps (and possibly copies) the Storables instead of relying on the Storable’s operator=.

Parameters
Exceptions

  • UnsupportedOperationException: Thrown if a copy is required and the object in other does not implement Storable::cloneStorable.

PolymorphicValue &operator=(PolymorphicValue &&other)
void swap(PolymorphicValue &other)

Exchange the contents of this container and another.

Unnamed Group

operator Storable&()

Return a reference to the internal Storable, if one exists.

Return

a reference to the internal object

Exceptions

  • pex::exceptions::LogicError: Thrown if this object is empty.

operator Storable const&() const
Storable &get()
Storable const &get() const

Unnamed Group

bool operator==(PolymorphicValue const &other) const

Test whether the contained Storables are equal.

Empty PolymorphicValues compare equal to each other and unequal to any non-empty PolymorphicValue.

bool operator!=(PolymorphicValue const &other) const

Public Functions

PolymorphicValue(Storable const &value)

Create a new object containing a copy of a Storable.

Parameters

~PolymorphicValue()
bool empty() const

Check whether this object contains a Storable.

Return

true if this object has no Storable, false otherwise

std::size_t hash_value() const

Return a hash of this object (optional operation).

Exceptions

  • UnsupportedOperationException: Thrown if the internal Storable is not hashable.

Private Members

std::shared_ptr<Storable> _value

Related

void swap(PolymorphicValue &lhs, PolymorphicValue &rhs)

Swap specialization for PolymorphicValue.

namespace std

Functions

template<>
void swap(lsst::afw::typehandling::PolymorphicValue &lhs, lsst::afw::typehandling::PolymorphicValue &rhs)

Swap specialization for PolymorphicValue.

template<>
struct hash<lsst::afw::typehandling::PolymorphicValue>
#include <PolymorphicValue.h>

Hash specialization for PolymorphicValue.

Return

the hash of the Storable inside the PolymorphicValue, or an arbitrary value if it is empty

Exceptions

  • UnsupportedOperationException: Thrown if the Storable is not hashable.

Public Types

template<>
using argument_type = lsst::afw::typehandling::PolymorphicValue
template<>
using result_type = size_t

Public Functions

size_t operator()(argument_type const &obj) const