Auxiliary class for ParamReader. It stores commands for a ParamReader to manage the current parameter number. Used by methods Read... from ParamReader. It allows to define the following commands : More...

#include <IGESData_ParamCursor.hxx>

Public Member Functions
	IGESData_ParamCursor (const Standard_Integer num)
	Creates a Cursor to read a precise parameter of ParamReader, identified by its number, then set Current Number to "num + 1" (this constructor allows to simply give a Number to a method Read... from ParamReader, which will be translated into a ParamCursor by compiler) More...

	IGESData_ParamCursor (const Standard_Integer num, const Standard_Integer nb, const Standard_Integer size=1)
	Creates a Cursor to read a list of parameters (count "nb") starting from a precise one (number "num") included, then set Current Number of ParamNumber to the first following one ("num + nb") If size is given, it means that each parameter is made of more than one term. One term is the normal (default) case : for instance, a Parameter comprises one Integer, or one Entity ... Size gives the complete size of each Item if it is complex. To be used ONLY IF it is constant. More...

void	SetTerm (const Standard_Integer size, const Standard_Boolean autoadv=Standard_True)
	Defines the size of a term to read in the item : this commands ParamReader to read "size" parameters for each item, then skip the remainder of the item to the same term of next Item (that is, skip "item size" - "term size") More...

void	SetOne (const Standard_Boolean autoadv=Standard_True)
	Defines a term of one Parameter (very current case) More...

void	SetXY (const Standard_Boolean autoadv=Standard_True)
	Defines a term of two Parameters for a XY (current case) More...

void	SetXYZ (const Standard_Boolean autoadv=Standard_True)
	Defines a term of three Parameters for XYZ (current case) More...

void	SetAdvance (const Standard_Boolean advance)
	Changes command to advance current cursor after reading parameters. If "advance" True, sets advance, if "False", resets it. ParamCursor is created by default with True. More...

Standard_Integer	Start () const
	Returns (included) starting number for reading parameters. More...

Standard_Integer	Limit () const
	Returns (excluded) upper limit number for reading parameters. More...

Standard_Integer	Count () const
	Returns required count of items to be read. More...

Standard_Integer	ItemSize () const
	Returns length of item (count of parameters per item) More...

Standard_Integer	TermSize () const
	Returns length of current term (count of parameters) in item. More...

Standard_Integer	Offset () const
	Returns offset from which current term must be read in item. More...

Standard_Boolean	Advance () const
	Returns True if Advance command has been set. More...

Detailed Description

Auxiliary class for ParamReader. It stores commands for a ParamReader to manage the current parameter number. Used by methods Read... from ParamReader. It allows to define the following commands :

read a parameter specified by a precise Number (basic case)
read a parameter then set Current Number to follow its number
read the current parameter (with Current Number) then advance Current Number by one
idem with several : read "nb" parameters from one specified, included, with or without setting Current Number to follow last parameter read
read several parameter from the current one, then advance Current Number to follow the last one read
Read several parameters (as above) but in interlaced lists, i.e. from complex items (each one including successively for instance, an Integer, a Real, an Entity ...)

If commands to advance Current Number are not set, it must be set by the user (with method SetCurrent from ParamReader) ParamReader offers methods which create most useful cases

Constructor & Destructor Documentation

IGESData_ParamCursor::IGESData_ParamCursor ( const Standard_Integer num )

Creates a Cursor to read a precise parameter of ParamReader, identified by its number, then set Current Number to "num + 1" (this constructor allows to simply give a Number to a method Read... from ParamReader, which will be translated into a ParamCursor by compiler)

IGESData_ParamCursor::IGESData_ParamCursor	(	const Standard_Integer	num,
		const Standard_Integer	nb,
		const Standard_Integer	size = `1`
	)

Creates a Cursor to read a list of parameters (count "nb") starting from a precise one (number "num") included, then set Current Number of ParamNumber to the first following one ("num + nb") If size is given, it means that each parameter is made of more than one term. One term is the normal (default) case : for instance, a Parameter comprises one Integer, or one Entity ... Size gives the complete size of each Item if it is complex. To be used ONLY IF it is constant.

Member Function Documentation

Standard_Boolean IGESData_ParamCursor::Advance ( ) const

Returns True if Advance command has been set.

Standard_Integer IGESData_ParamCursor::Count ( ) const

Returns required count of items to be read.

Standard_Integer IGESData_ParamCursor::ItemSize ( ) const

Returns length of item (count of parameters per item)

Standard_Integer IGESData_ParamCursor::Limit ( ) const

Returns (excluded) upper limit number for reading parameters.

Standard_Integer IGESData_ParamCursor::Offset ( ) const

Returns offset from which current term must be read in item.

void IGESData_ParamCursor::SetAdvance ( const Standard_Boolean advance )

Changes command to advance current cursor after reading parameters. If "advance" True, sets advance, if "False", resets it. ParamCursor is created by default with True.

void IGESData_ParamCursor::SetOne ( const Standard_Boolean autoadv = Standard_True )

Defines a term of one Parameter (very current case)

void IGESData_ParamCursor::SetTerm	(	const Standard_Integer	size,
		const Standard_Boolean	autoadv = `Standard_True`
	)

Defines the size of a term to read in the item : this commands ParamReader to read "size" parameters for each item, then skip the remainder of the item to the same term of next Item (that is, skip "item size" - "term size")

In addition, Offset from beginning of Item is managed : After being created, and for the frist call to SetTerm, the part of Item to be read begins exactly as the Item begins But after a SetTerm, the next read will add an offset which is the size of former term.

autoadv commands Advance management. If it is True (default), the last SetTerm (Item size has been covered) calls SetAdvance If it is False, SetAdvance must be called directly if necessary

Error if a SetTerm overpasses the size of the Item

void IGESData_ParamCursor::SetXY ( const Standard_Boolean autoadv = Standard_True )

Defines a term of two Parameters for a XY (current case)

void IGESData_ParamCursor::SetXYZ ( const Standard_Boolean autoadv = Standard_True )

Defines a term of three Parameters for XYZ (current case)

Standard_Integer IGESData_ParamCursor::Start ( ) const

Returns (included) starting number for reading parameters.

Standard_Integer IGESData_ParamCursor::TermSize ( ) const

Returns length of current term (count of parameters) in item.

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

IGESData_ParamCursor.hxx

IGESData_ParamCursor Class Reference

Public Member Functions

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation