gem::Projection Class Reference

Handles coordinate system conversions. More...

Inheritance diagram for gem::Projection:

Collaboration diagram for gem::Projection:

Public Member Functions
	Projection (const Projection &)=default
	Default copy constructor.
	Projection (Projection &&)=default
	Default move constructor noexcept is deduced.
Projection &	operator= (const Projection &)=default
	Copy assignment operator.
Projection &	operator= (Projection &&)=default
	Move assignment operator.
EProjectionType	type () const
	Retrieves the specific type of the projection.
bool	equals (Projection const &other) const noexcept
	Compares two Projection objects for equality.
bool	operator== (const Projection &projection) const noexcept
	Compares two Projection objects for equality.
bool	operator!= (const Projection &projection) const noexcept
	Inequality comparison operator for projections.
template<typename TSubclass>
TSubclass	cast () const noexcept
	Attempts to cast the current projection object to a specified subclass.
bool	isDefault () const override
	Determines if the current projection object is in its default state (unaltered since creation).
	operator bool () const noexcept
	Boolean conversion operator indicating if the projection is valid and not in its default state.
bool	isEmpty () const noexcept
	Checks if the projection is empty.
void	reset () noexcept
	Reset the projection object to its default state.

Detailed Description

Handles coordinate system conversions.

Implements share-read / copy-on-write ApiType object over IProjection.

Transforms between geographic coordinates (lat/long) and map projection coordinates, enabling accurate placement of objects.

Member Function Documentation

cast()

template<typename TSubclass>

TSubclass gem::Projection::cast ( ) const

inlinenoexcept

Attempts to cast the current projection object to a specified subclass.

This is a template method.

Template Parameters

TSubclass

The subclass type to cast to.

Returns

An object of type TSubclass if the cast is successful; otherwise, a default-constructed object of TSubclass.

equals()

bool gem::Projection::equals ( Projection const & other ) const

inlinenoexcept

Compares two Projection objects for equality.

Parameters

other

Another Projection object to compare against.

Returns

True if both Projection objects represent the same data, false otherwise.

isDefault()

bool gem::Projection::isDefault ( ) const

inlineoverride

Determines if the current projection object is in its default state (unaltered since creation).

Returns

true if the object is default, false otherwise.

isEmpty()

bool gem::Projection::isEmpty ( ) const

inlinenoexcept

Checks if the projection is empty.

Returns

true if the projection is empty, false otherwise.

operator bool()

gem::Projection::operator bool ( ) const

inlineexplicitnoexcept

Boolean conversion operator indicating if the projection is valid and not in its default state.

Returns

true if the object is valid and not default, false otherwise.

operator!=()

bool gem::Projection::operator!= ( const Projection & projection ) const

inlinenoexcept

Inequality comparison operator for projections.

Parameters

projection

Another Projection object to compare against.

Returns

true if the projections are not equal, false otherwise.

operator=() [1/2]

Projection & gem::Projection::operator= ( const Projection & )

default

Copy assignment operator.

Replaces the current object's contents with another Projection object's contents.

Returns

A reference to the current object after assignment.

operator=() [2/2]

Projection & gem::Projection::operator= ( Projection && )

default

Move assignment operator.

Transfers the contents of another Projection object to this one.

Returns

A reference to the current object after assignment.

operator==()

bool gem::Projection::operator== ( const Projection & projection ) const

inlinenoexcept

Compares two Projection objects for equality.

Parameters

projection

Another Projection object to compare against.

Returns

True if both Projection objects represent the same data, false otherwise.

type()

EProjectionType gem::Projection::type ( ) const

inline

Retrieves the specific type of the projection.

Returns

The type of the projection as an EProjectionType enumeration.