A base class for any of a broad family of flt records that represent particular beads in the hierarchy. More...

#include "fltBead.h"

Inheritance diagram for FltBead:

Public Member Functions
	FltBead (FltHeader *header)
void	add_transform_step (FltTransformRecord *record)
	Applies the indicated transform step to the net transformation applied to the bead.
void	clear_transform ()
	Removes any transform matrix and all transform steps on this bead.
virtual TypeHandle	force_init_type ()
int	get_num_transform_steps () const
	Returns the number of individual steps that define the net transform on this bead as returned by set_transform().
int	get_replicate_count () const
	Returns the replicate count of this bead.
const LMatrix4d &	get_transform () const
	Returns the single-precision 4x4 matrix that represents the transform applied to this bead, or the identity matrix if the bead has not been transformed.
const FltTransformRecord *	get_transform_step (int n) const
	Returns the nth individual step that defines the net transform on this bead.
FltTransformRecord *	get_transform_step (int n)
	Returns the nth individual step that defines the net transform on this bead.
virtual TypeHandle	get_type () const
bool	has_transform () const
	Returns true if the bead has been transformed, false otherwise.
void	set_replicate_count (int count)
	Changes the replicate count of this bead.
void	set_transform (const LMatrix4d &mat)
	Replaces the transform matrix on this bead.
Static Public Member Functions
static TypeHandle	get_class_type ()
static void	init_type ()
	This function is declared non-inline to work around a compiler bug in g++ 2.96.
Protected Member Functions
virtual bool	build_record (FltRecordWriter &writer) const
	Fills up the current record on the FltRecordWriter with data for this record, but does not advance the writer.
virtual bool	extract_ancillary (FltRecordReader &reader)
	Checks whether the given bead, which follows this bead sequentially in the file, is an ancillary record of this bead.
virtual bool	extract_record (FltRecordReader &reader)
	Fills in the information in this bead based on the information given in the indicated datagram, whose opcode has already been read.
virtual FltError	write_ancillary (FltRecordWriter &writer) const
	Writes whatever ancillary records are required for this record.

Detailed Description

A base class for any of a broad family of flt records that represent particular beads in the hierarchy.

These are things like group beads and object beads, as opposed to things like push and pop or comment records.

Definition at line 33 of file fltBead.h.

Member Function Documentation

void FltBead::add_transform_step ( FltTransformRecord * record )

Applies the indicated transform step to the net transformation applied to the bead.

Definition at line 149 of file fltBead.cxx.

References FltTransformRecord::get_matrix().

Referenced by set_transform().

bool FltBead::build_record ( FltRecordWriter & writer ) const [protected, virtual]

Fills up the current record on the FltRecordWriter with data for this record, but does not advance the writer.

Returns true on success, false if there is some error.

Reimplemented from FltRecord.

Reimplemented in FltBeadID, FltCurve, FltExternalReference, FltFace, FltGeometry, FltGroup, FltHeader, FltInstanceDefinition, FltInstanceRef, FltLOD, FltMesh, FltMeshPrimitive, and FltObject.

Definition at line 274 of file fltBead.cxx.

References FltRecord::build_record().

Referenced by FltMeshPrimitive::build_record(), FltInstanceRef::build_record(), FltInstanceDefinition::build_record(), FltExternalReference::build_record(), and FltBeadID::build_record().

void FltBead::clear_transform ( )

Removes any transform matrix and all transform steps on this bead.

Definition at line 93 of file fltBead.cxx.

References LMatrix4d::ident_mat().

Referenced by set_transform().

bool FltBead::extract_ancillary ( FltRecordReader & reader ) [protected, virtual]

Checks whether the given bead, which follows this bead sequentially in the file, is an ancillary record of this bead.

If it is, extracts the relevant information and returns true; otherwise, leaves it alone and returns false.

Reimplemented from FltRecord.

Reimplemented in FltBeadID, FltHeader, and FltMesh.

Definition at line 213 of file fltBead.cxx.

References FltRecord::extract_record(), and FltRecordReader::get_opcode().

bool FltBead::extract_record ( FltRecordReader & reader ) [protected, virtual]

Fills in the information in this bead based on the information given in the indicated datagram, whose opcode has already been read.

Returns true on success, false if the datagram is invalid.

Reimplemented from FltRecord.

Reimplemented in FltBeadID, FltCurve, FltExternalReference, FltFace, FltGeometry, FltGroup, FltHeader, FltInstanceDefinition, FltInstanceRef, FltLOD, FltMesh, FltMeshPrimitive, and FltObject.

Definition at line 196 of file fltBead.cxx.

References FltRecord::extract_record().

Referenced by FltMeshPrimitive::extract_record(), FltInstanceRef::extract_record(), FltInstanceDefinition::extract_record(), FltExternalReference::extract_record(), and FltBeadID::extract_record().

int FltBead::get_num_transform_steps ( ) const

Returns the number of individual steps that define the net transform on this bead as returned by set_transform().

Each step is a single transformation; the concatenation of all transformations will produce the matrix represented by set_transform().

Definition at line 110 of file fltBead.cxx.

Referenced by FltToEggLevelState::set_transform().

int FltBead::get_replicate_count ( ) const

Returns the replicate count of this bead.

If this is nonzero, it means that the bead is implicitly copied this number of additional times (for replicate_count + 1 total copies), applying the transform on this bead for each copy. In this case, the transform does not* apply to the initial copy of the bead.

Definition at line 170 of file fltBead.cxx.

const LMatrix4d & FltBead::get_transform ( ) const

Returns the single-precision 4x4 matrix that represents the transform applied to this bead, or the identity matrix if the bead has not been transformed.

Definition at line 66 of file fltBead.cxx.

References LMatrix4d::ident_mat().

Referenced by FltToEggLevelState::get_synthetic_group(), and FltToEggLevelState::set_transform().

FltTransformRecord * FltBead::get_transform_step ( int n )

Returns the nth individual step that defines the net transform on this bead.

See get_num_transform_steps().

Definition at line 122 of file fltBead.cxx.

Referenced by FltToEggLevelState::set_transform().

const FltTransformRecord * FltBead::get_transform_step ( int n ) const

Returns the nth individual step that defines the net transform on this bead.

See get_num_transform_steps().

Definition at line 136 of file fltBead.cxx.