IgesPlane Class Reference

Detailed Description

IGES 108 : Plane.

Spec : IGES 5.3 page 87

The plane entity can be used to represent an unbounded plane, as well as a bounded portion of a plane. In either of the above cases, the plane is defined within definition space by means of the coefficients A, B, C, D, where at least one of A, B, and C is nonzero and A·XT + B·YT + C·ZT = D for each point lying in the plane, and having definition space coordinates (XT, YT, ZT). The definition space coordinates of a point, as well as a size parameter, can be specified in order to assist in defining a system-dependent display symbol. These values are parameter data entries six through nine, respectively. This information, together with the four coefficients defining the plane, provides sufficient information relative to definition space in order to be able to position the display symbol. (In the unbounded plane example of Figure 23, the curves and the crosshair together constitute the display symbol.) Defaulting, or setting the size parameter to zero, indicates that a display symbol is not intended. The case of a bounded portion of a fixed plane requires the existence of a pointer to a simple closed curve lying in the plane. This is parameter five. The only allowed coincident points for this curve are the start point and the terminate point. The case of an unbounded plane requires this pointer to be zero.

See Also

IgesEntity, IgesFile

#include <iges108.h>

Inheritance diagram for IgesPlane:

Collaboration diagram for IgesPlane:

Public Member Functions
	IgesPlane ()
	create plane entity
void	definition (IgesFile &file)
	assemble definition
uint	parse (const std::string &pds, const Indices &vpos)
	parse entity data
Public Member Functions inherited from IgesEntity
	IgesEntity (int ety)
	create entity type etype
virtual	~IgesEntity ()
	destroy
int	etype () const
	entity type
int	classOf () const
	entity class identifier
void	form (int f)
	access the form field of the directory entry
void	blank (int b)
	access status field: blank (0/1)
void	subswitch (int b)
	access status field: subordinate switch (0-3)
void	useflag (int b)
	access status field: use flag (0-6)
void	hierarchy (int b)
	access status field: hierachy flag (0-2)
void	trafoMatrix (int tfi)
	access transformation matrix field
int	trafoMatrix ()
	access transformation matrix field
void	label (const char *s)
	set entity label (use only 8 characters)
std::string	label () const
	return label, if present
void	subscript (int s)
	set entity subscript
void	addNoteRef (int ide)
	add reference to assoc/note DE
void	addPropRef (int ide)
	add reference to property/attribute table DE
uint	pindex () const
	parameter data index
uint	nNoteRef () const
	number of notes
uint	nPropRef () const
	number of property references
int	noteRef (uint k) const
	access note reference k
int	propRef (uint k) const
	access property reference k
int	append (IgesFile &igfile)
	append entity to file
bool	retrieve (const IgesFile &igfile)
	retrieve entity from file

Public Attributes
Vct3	normal
	plane normal
Real	distance
	distance from origin
Vct3	marker
	location of display marker
Real	markerSize
	size of marker
uint	ideBoundary
	DE of bounding curve, or 0 if unbounded.

Additional Inherited Members
Public Types inherited from IgesEntity
enum	IgesEntityClass {   NoClass = 0, PointClass = 1, LineClass = 2, CurveClass = 4,   SurfaceClass = 8, StructureClass = 16, AnyClass = 31 }
Static Public Member Functions inherited from IgesEntity
static IgesEntity *	create (const IgesDirEntry &e)
	generate a new entity from code, return zero if not implemented
template<class EType >
static bool	as (const IgesEntityPtr &ep, EType &t)
	convenience function
static int	classOf (int etype)
	identity class of entity number
Static Protected Member Functions inherited from IgesEntity
static int	asInt (const char *s, int k)
	convenience conversion function
static double	asDouble (const char *s, int k)
	convenience conversion function
Protected Attributes inherited from IgesEntity
IgesDirEntry	entry
	directory entry
int	plcpre
	line counts in parameter section
int	plcpost
std::vector< int >	addprop1
	additional properties (two groups)
std::vector< int >	addprop2

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

• iges108.h (r6227/r5385)
• iges108.cpp (r6227/r5337)