Ilwis::DataDefinition Class Reference

#include <datadefinition.h>

Public Member Functions
	DataDefinition (const DataDefinition &def)
	DataDefinition (const IDomain &dm, Ilwis::Range *rng=0)
	DataDefinition ()
DataDefinition &	operator= (const DataDefinition &def1)
void	range (Ilwis::Range *vr)
template<typename T = Range>
QSharedPointer< T >	range () const
IDomain	domain () const
void	domain (const IDomain &dom)
bool	isValid () const
bool	isCompatibleWith (const DataDefinition &def) const

Static Public Member Functions
static DataDefinition	merge (const DataDefinition &def1, const DataDefinition &def2)

Protected Attributes
IDomain	_domain
SPRange	_range
SPRange	_stretchRange

Detailed Description

The datadefinition class is closely related to domain. It defines the data as used by the object (whatever the object may be, e.g. a raster-coverage). The domain concept is a general concept. Meaning that the range is uses it often much broader than the actual range of data used by the object. A value domain may be valid for {-1e300 ,0-1e300} while in the coverage the actual range is 0-10. This difference is captured by the datadefinition.

Constructor & Destructor Documentation

DataDefinition::DataDefinition

(

const DataDefinition &

def

)

Copy constructor
copies the values of the given DataDefinition to a new one, will also copy 0 and NULL values

Parameters

def	DataDefinition to be copied onto the new one

DataDefinition::DataDefinition	(	const IDomain &	dm,
		Ilwis::Range *	rng = 0
	)

Constructs a new DataDefinition based on an IDomain and a Range
sets the domain of the new DataDefinition as dm, and sets the range to rng, if rng != 0
if rng = 0 (defaultvalue) it will set the domain->range2range() as range (the range will be equal to the domain)
if rng != 0, it must be a valid range, which will than be set as the range of this DataDefinition

See Also

Domain

Parameters

dm	The Domain of the new DataDefinition
rng	The range of the new DataDefinition

DataDefinition::DataDefinition

(

)

Constructor for an empty DataDefinition

Member Function Documentation

IDomain DataDefinition::domain

(

)

const

Query for the domain of this DataDefinition
can return invalid domains

Returns

The IDomain of this DataDefinition

void DataDefinition::domain

(

const IDomain &

dom

)

Sets a new domain to this DataDefinition
Also sets the range of this domain as the new range of this DataDefinition if the domain can be converted to a range
will not do anything to the range if the given domain is invalid

Parameters

dom	The new Domain

bool DataDefinition::isCompatibleWith

(

const DataDefinition &

def

)

const

Checks if this DataDefinition is compatible with some other DataDefinition
They are Compatible when they are both valid and their IDomain's are compatible
def cannot be null

See Also

Domain

Parameters

def	the other DataDefinition

Returns

true when compatible

bool DataDefinition::isValid

(

)

const

Checks if this Datadefinition is valid
A DataDefinition is valid when its Domain is valid

See Also

Domain

Returns

true when valid

DataDefinition DataDefinition::merge ( const DataDefinition &  def1, const DataDefinition &  def2  )

static

Merges 2 DataDefinitions into 1 new DataDefinition
if 1 is not valid and the other is, the valid definition will be returned
def 1 and def 2 cannot be null

Parameters

def1	The first definition to be merged
def2	The second definition to be merged

Returns

The merged DataDefinition, one of the 2 starters (if 1 was invalid) OR an empty definition if both were invalid

DataDefinition & DataDefinition::operator=

(

const DataDefinition &

def1

)

Assigns the values of the other DataDefinition to this
(copy constructor)

Parameters

def1	the other DataDefinition

Returns

a copy of the other DataDefinition

void DataDefinition::range

(

Ilwis::Range *

vr

)

Changes the range of this DataDefinition to the one specified
the new range must be valid on the domain of this DataDefinition

Parameters

vr	The new Range

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The documentation for this class was generated from the following files:

• ilwisobjects/domain/datadefinition.h
• ilwisobjects/domain/datadefinition.cpp