Class representing different flavors of the Pixel Value Transformation FG: More...

Inheritance diagram for FGPixelValueTransformation:

Public Types
enum	E_PixelValueTransformationSubType { E_PixelValTrans_Normal , E_PixelValTrans_Identity , E_PixelValTrans_CT }
	Enumerated values for the type of functional group that this class should represent. More...

Public Member Functions
	FGPixelValueTransformation ()
	Constructor, creates (Identity) Pixel Value Transformation Functional Group. More...

virtual	~FGPixelValueTransformation ()
	Destructor, frees memory.

virtual void	setUseAsIdentityPixelValueTransformation ()
	This method is deprecated, use setFGType instead. More...

virtual void	setFGType (const E_PixelValueTransformationSubType fgType)
	Tell this class as which type of functional group it should behave. More...

virtual E_PixelValueTransformationSubType	getFGType () const
	Get type Functional Group represented by this class. More...

virtual FGBase *	clone () const
	Returns a deep copy of this object. More...

virtual DcmFGTypes::E_FGSharedType	getSharedType () const
	Get shared type of this functional group (can be both, per-frame and shared) More...

virtual void	clearData ()
	Clears all data.

virtual OFCondition	check () const
	Check whether functional group contains valid data. More...

virtual OFCondition	read (DcmItem &item)
	Read functional group from given item, i.e. read (Identity) Pixel Value Transformation Sequence. More...

virtual OFCondition	write (DcmItem &item)
	Write functional group to given item, i.e. write (Identity) Pixel Value Transformation Sequence. More...

virtual OFCondition	getRescaleIntercept (OFString &value, const signed long pos=0) const
	Get RescaleIntercept. More...

virtual OFCondition	getRescaleSlope (OFString &value, const signed long pos=0) const
	Get RescaleSlope. More...

virtual OFCondition	getRescaleType (OFString &value, const signed long pos=0) const
	Get RescaleType. More...

virtual int	compare (const FGBase &rhs) const
	Comparison operator that compares the normalized value of this object with a given object of the same type, i.e. the elements within both functional groups (this and rhs parameter) are compared by value! Both objects (this and rhs) need to have the same type (i.e. both FGUnknown) to be comparable. More...

virtual OFCondition	setRescaleIntercept (const OFString &value, const OFBool checkValue=OFTrue)
	Set RescaleIntercept. More...

virtual OFCondition	setRescaleSlope (const OFString &value, const OFBool checkValue=OFTrue)
	Set RescaleSlope. More...

virtual OFCondition	setRescaleType (const OFString &value, const OFBool checkValue=OFTrue)
	Set RescaleType. More...

Public Member Functions inherited from FGBase
	FGBase (const DcmFGTypes::E_FGType fgType)
	Constructor, creates new functional group of given type. More...

virtual OFCondition	check () const =0
	Check whether functional group has valid and complete data. More...

virtual OFCondition	read (DcmItem &item)=0
	Read functional group from given item. More...

virtual OFCondition	write (DcmItem &item)=0
	Write functional group to given item. More...

virtual DcmFGTypes::E_FGSharedType	getSharedType () const =0
	Find out whether functional group is potentially only shared, only per-frame or can be both. More...

virtual DcmFGTypes::E_FGType	getType () const
	Return the type of this functional group. More...

virtual void	clearData ()=0
	Clear any data in the group.

virtual	~FGBase ()
	Virtual destructor.

virtual int	compare (const FGBase &rhs) const =0
	Comparison operator that compares the normalized value of this object with a given object of the same type, i.e. the elements within both functional groups (this and rhs parameter) are compared by value! Both objects (this and rhs) need to have the same type (e.g. both FGDerivationImage) to be comparable. More...

virtual FGBase *	clone () const =0
	Returns a deep copy of this object. More...

Protected Member Functions
virtual OFString	fgType2Str ()
	Returns String denoting the type of functional group represented by this class. More...

Protected Member Functions inherited from FGBase
virtual OFCondition	getItemFromFGSequence (DcmItem &source, const DcmTagKey &seqKey, const unsigned long itemNum, DcmItem *&result)
	Get the item containing the payload of a functional group sequence, identified by the functional group's sequence key provided and the desired item number. More...

virtual OFCondition	getNumItemsFromFGSequence (DcmItem &source, const DcmTagKey &seqKey, unsigned long &result)
	Get number of items in a functional group sequence, identified by the functional group's sequence key. More...

virtual OFCondition	createNewFGSequence (DcmItem &destination, const DcmTagKey &seqKey, const unsigned long numItems, DcmItem *&firstItem)
	Create functional group sequence specified by given sequence tag key. More...

Private Attributes
DcmDecimalString	m_RescaleIntercept
	RescaleIntercept (DS, VM 1, Required type 1)

DcmDecimalString	m_RescaleSlope
	RescaleSlope (DS, VM 1, Required type 1)

DcmLongString	m_RescaleType
	RescaleType (LO, VM 1, Required type 1)

E_PixelValueTransformationSubType	m_fgSubType
	Denotes the represented functional group type. More...

Detailed Description

Class representing different flavors of the Pixel Value Transformation FG:

Pixel Value Transformation
Identity Pixel Value Transformation
CT Pixel Value Transformation The attributes in each type are always the same. Value checking is performed if possible for the selected FG type. Otherwise only logging is adapted where applicable.

Member Enumeration Documentation

◆ E_PixelValueTransformationSubType

enum FGPixelValueTransformation::E_PixelValueTransformationSubType

Enumerated values for the type of functional group that this class should represent.

Enumerator
E_PixelValTrans_Normal	Value representing the "Pixel Value Transformation Functional Group Macro".
E_PixelValTrans_Identity	Value representing the "Identity Pixel Value Transformation Functional Group Macro".
E_PixelValTrans_CT	Value representing the "CT Pixel Value Transformation Functional Group Macro".

Constructor & Destructor Documentation

◆ FGPixelValueTransformation()

FGPixelValueTransformation::FGPixelValueTransformation ( )

Constructor, creates (Identity) Pixel Value Transformation Functional Group.

All values (Rescale Slope, Intercept and Type) are initialized as if the class is used as the Identity Pixel Value Transformation FG, i.e. Rescale Slope is set to 1, Intercept to 0 and Type to "US".

Member Function Documentation

◆ check()

virtual OFCondition FGPixelValueTransformation::check ( ) const

virtual

Check whether functional group contains valid data.

Returns: EC_Normal if data is valid, error otherwise

Implements FGBase.

◆ clone()

virtual FGBase * FGPixelValueTransformation::clone ( ) const

virtual

Returns a deep copy of this object.

Returns: Deep copy of this object

Implements FGBase.

◆ compare()

virtual int FGPixelValueTransformation::compare ( const FGBase & rhs ) const

virtual

Comparison operator that compares the normalized value of this object with a given object of the same type, i.e. the elements within both functional groups (this and rhs parameter) are compared by value! Both objects (this and rhs) need to have the same type (i.e. both FGUnknown) to be comparable.

This function is used in order to decide whether a functional group already exists, or is new. This is used in particular to find out whether a given functional group can be shared (i.e. the same information already exists as shared functional group) or is different from the same shared group. In that case the shared functional group must be distributed into per-frame functional groups, instead. The exact implementation for implementing the comparison is not relevant. However, it must be a comparison by value.

Parameters

rhs	the right hand side of the comparison

Returns: 0 if the object values are equal. -1 if either the value of the first component that does not match is lower in the this object, or all compared components match but this component is shorter. Also returned if this type and rhs type (DcmFGTypes::E_FGType) do not match. 1 if either the value of the first component that does not match is greater in this object, or all compared components match but this component is longer.

Implements FGBase.

◆ fgType2Str()

virtual OFString FGPixelValueTransformation::fgType2Str ( )

protectedvirtual

Returns String denoting the type of functional group represented by this class.

Returns: String denoting the type of functional group

◆ getFGType()

virtual E_PixelValueTransformationSubType FGPixelValueTransformation::getFGType ( ) const

virtual

Get type Functional Group represented by this class.

Returns: Type of functional group represented by this class

◆ getRescaleIntercept()

virtual OFCondition FGPixelValueTransformation::getRescaleIntercept	(	OFString &	value,
		const signed long	pos = `0`
	)		const

virtual

Get RescaleIntercept.

Parameters

value	Reference to variable in which the value should be stored
pos	Index of the value to get (0..vm-1), -1 for all components

Returns: EC_Normal if successful, an error code otherwise

◆ getRescaleSlope()

virtual OFCondition FGPixelValueTransformation::getRescaleSlope	(	OFString &	value,
		const signed long	pos = `0`
	)		const

virtual

Get RescaleSlope.

Parameters

value	Reference to variable in which the value should be stored
pos	Index of the value to get (0..vm-1), -1 for all components

Returns: EC_Normal if successful, an error code otherwise

◆ getRescaleType()

virtual OFCondition FGPixelValueTransformation::getRescaleType	(	OFString &	value,
		const signed long	pos = `0`
	)		const

virtual

Get RescaleType.

Parameters

value	Reference to variable in which the value should be stored
pos	Index of the value to get (0..vm-1), -1 for all components

Returns: EC_Normal if successful, an error code otherwise

◆ getSharedType()

virtual DcmFGTypes::E_FGSharedType FGPixelValueTransformation::getSharedType ( ) const

inlinevirtual

Get shared type of this functional group (can be both, per-frame and shared)

Returns: Always returns EFGS_BOTH

Implements FGBase.

References DcmFGTypes::EFGS_BOTH.

◆ read()

virtual OFCondition FGPixelValueTransformation::read ( DcmItem & item )

virtual

Read functional group from given item, i.e. read (Identity) Pixel Value Transformation Sequence.

Clears existing data before reading.

Parameters

item	The item to read from

Returns: EC_Normal if reading was successful, error otherwise

Implements FGBase.

◆ setFGType()

virtual void FGPixelValueTransformation::setFGType ( const E_PixelValueTransformationSubType fgType )

virtual

Tell this class as which type of functional group it should behave.

Transformation Functional Group. This does not make a difference when reading or writing data, but the component name is written correctly for all corresponding log messages.

Parameters

fgType Denotes which Functional Group Macro should be represented by this class.

◆ setRescaleIntercept()

virtual OFCondition FGPixelValueTransformation::setRescaleIntercept	(	const OFString &	value,
		const OFBool	checkValue = `OFTrue`
	)

virtual

Set RescaleIntercept.

Parameters

value	Value to be set (single value only) or "" for no value
checkValue	Check 'value' for conformance with VR (DS) and VM (1) if enabled

Returns: EC_Normal if successful, an error code otherwise

◆ setRescaleSlope()

virtual OFCondition FGPixelValueTransformation::setRescaleSlope	(	const OFString &	value,
		const OFBool	checkValue = `OFTrue`
	)

virtual

Set RescaleSlope.

Parameters

value	Value to be set (single value only) or "" for no value
checkValue	Check 'value' for conformance with VR (DS) and VM (1) if enabled

Returns: EC_Normal if successful, an error code otherwise

◆ setRescaleType()

virtual OFCondition FGPixelValueTransformation::setRescaleType	(	const OFString &	value,
		const OFBool	checkValue = `OFTrue`
	)

virtual

Set RescaleType.

Parameters

value	Value to be set (single value only) or "" for no value
checkValue	Check 'value' for conformance with VR (LO) and VM (1) if enabled

Returns: EC_Normal if successful, an error code otherwise

◆ setUseAsIdentityPixelValueTransformation()

virtual void FGPixelValueTransformation::setUseAsIdentityPixelValueTransformation ( )

virtual

This method is deprecated, use setFGType instead.

Tell this class that it should behave like the Identity Pixel Value Transformation Functional Group. This does not make a difference when reading data, but when writing, it is assured that Rescale Slope, Intercept and Type are forced to be set to 1, 0 and "US" respectively.

◆ write()

virtual OFCondition FGPixelValueTransformation::write ( DcmItem & item )

virtual

Write functional group to given item, i.e. write (Identity) Pixel Value Transformation Sequence.

Parameters

item	The item to write to

Returns: EC_Normal if writing was successful, error otherwise

Implements FGBase.

Member Data Documentation

◆ m_fgSubType

E_PixelValueTransformationSubType FGPixelValueTransformation::m_fgSubType

private

Denotes the represented functional group type.

E_PixelValTrans_Normal: Normal Pixel Value Transformation FG. No no special value requirements. E_PixelValTrans_Identity: Identity Pixel Value Transformation FG. Tells this class that it should behave like the Identity Pixel Value Transformation FG. This does not make a difference when reading data, but when writing, it is assured that Rescale Slope, Intercept and Type are forced to be set to 1, 0 and "US" respectively. E_PixelValTrans_CT: CT Pixel Value Transformation FG. Tells this class that it should behave like the CT Pixel Value Transformation FG. No special value requirements.

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

dcmfg/include/dcmtk/dcmfg/fgpixeltransform.h

Public Types

Public Member Functions

Protected Member Functions

Private Attributes

Detailed Description

Member Enumeration Documentation

◆ E_PixelValueTransformationSubType

Constructor & Destructor Documentation

◆ FGPixelValueTransformation()

Member Function Documentation

◆ check()

◆ clone()

◆ compare()

◆ fgType2Str()

◆ getFGType()

◆ getRescaleIntercept()

◆ getRescaleSlope()

◆ getRescaleType()

◆ getSharedType()

◆ read()

◆ setFGType()

◆ setRescaleIntercept()

◆ setRescaleSlope()

◆ setRescaleType()

◆ setUseAsIdentityPixelValueTransformation()

◆ write()

Member Data Documentation

◆ m_fgSubType