STTransform Class Reference

Represents a transform that may be applied to a particular instance of a tree when added to the SpeedTreeNode. More...

#include "stTransform.h"

Public Member Functions
	STTransform ()
	The default constructor creates an identity transform. More...
	STTransform (const TransformState *trans)
	This constructor accepts a Panda TransformState, for instance as extracted from the scene graph. More...
	STTransform (const LPoint3 &pos, PN_stdfloat rotate=0.0f, PN_stdfloat scale=1.0f)
	Construct a transform with componentwise inputs. More...
	STTransform (PN_stdfloat x, PN_stdfloat y, PN_stdfloat z, PN_stdfloat rotate, PN_stdfloat scale)
	Construct a transform with componentwise inputs. More...
	STTransform (const STTransform &copy)
	STTransform (const SpeedTree::CInstance &instance)
	This is used internally to construct an STTransform from a SpeedTree::CInstance object. More...
void	fillin (DatagramIterator &scan, BamReader *manager)
	This internal function is called by make_from_bam to read in all of the relevant data from the BamFile for the new SpeedTreeNode. More...
const LPoint3 &	get_pos () const
	Returns the translation component. More...
PN_stdfloat	get_rotate () const
	Returns the rotation component, in degrees counter-clockwise around the vertical axis. More...
PN_stdfloat	get_scale () const
	Returns the scale component, as a uniform scale value. More...
STTransform	operator * (const STTransform &other) const
	Composes these transforms and returns the result. More...
void	operator *= (const STTransform &other)
	Composes these transforms and stores the result in-place. More...
	operator SpeedTree::CInstance () const
	This is used internally to convert an STTransform into a SpeedTree::CInstance object. More...
void	operator= (const STTransform &copy)
void	output (std::ostream &out) const
void	set_pos (const LPoint3 &pos)
	Replaces the translation component. More...
void	set_rotate (PN_stdfloat rotate)
	Replaces the rotation component. More...
void	set_scale (PN_stdfloat scale)
	Replaces the scale component. More...
operator CPT()	TransformState () const
void	write_datagram (BamWriter *manager, Datagram &dg)
	Writes the contents of this object to the datagram for shipping out to a Bam file. More...

Static Public Member Functions
static const STTransform &	ident_mat ()
	Returns a global identity transform object. More...

Public Attributes
LPoint3	_pos
PN_stdfloat	_rotate
PN_stdfloat	_scale

Static Public Attributes
static STTransform	_ident_mat

Detailed Description

Represents a transform that may be applied to a particular instance of a tree when added to the SpeedTreeNode.

Definition at line 26 of file stTransform.h.

Constructor & Destructor Documentation

STTransform() [1/5]

STTransform::STTransform ( )

inline

The default constructor creates an identity transform.

Definition at line 18 of file stTransform.I.

STTransform() [2/5]

STTransform::STTransform

(

const TransformState *

trans

)

This constructor accepts a Panda TransformState, for instance as extracted from the scene graph.

Definition at line 23 of file stTransform.cxx.

STTransform() [3/5]

STTransform::STTransform ( const LPoint3 &  pos, PN_stdfloat  rotate = 0.0f, PN_stdfloat  scale = 1.0f  )

inline

Construct a transform with componentwise inputs.

Definition at line 29 of file stTransform.I.

STTransform() [4/5]

STTransform::STTransform ( PN_stdfloat  x, PN_stdfloat  y, PN_stdfloat  z, PN_stdfloat  rotate, PN_stdfloat  scale  )

inline

Construct a transform with componentwise inputs.

Definition at line 40 of file stTransform.I.

STTransform() [5/5]

STTransform::STTransform ( const SpeedTree::CInstance &  instance )

inline

This is used internally to construct an STTransform from a SpeedTree::CInstance object.

Definition at line 73 of file stTransform.I.

Member Function Documentation

fillin()

void STTransform::fillin	(	DatagramIterator &	scan,
		BamReader *	manager
	)

This internal function is called by make_from_bam to read in all of the relevant data from the BamFile for the new SpeedTreeNode.

Definition at line 67 of file stTransform.cxx.

References DatagramIterator::get_stdfloat().

get_pos()

const LPoint3 & STTransform::get_pos ( ) const

inline

Returns the translation component.

Definition at line 124 of file stTransform.I.

get_rotate()

PN_stdfloat STTransform::get_rotate ( ) const

inline

Returns the rotation component, in degrees counter-clockwise around the vertical axis.

Definition at line 142 of file stTransform.I.

get_scale()

PN_stdfloat STTransform::get_scale ( ) const

inline

Returns the scale component, as a uniform scale value.

Definition at line 158 of file stTransform.I.

ident_mat()

const STTransform & STTransform::ident_mat ( )

inlinestatic

Returns a global identity transform object.

Definition at line 108 of file stTransform.I.

operator *()

STTransform STTransform::operator * ( const STTransform &  other ) const

inline

Composes these transforms and returns the result.

Definition at line 178 of file stTransform.I.

operator *=()

void STTransform::operator *= ( const STTransform &  other )

inline

Composes these transforms and stores the result in-place.

Definition at line 166 of file stTransform.I.

operator SpeedTree::CInstance()

STTransform::operator SpeedTree::CInstance ( ) const

inline

This is used internally to convert an STTransform into a SpeedTree::CInstance object.

Definition at line 85 of file stTransform.I.

set_pos()

void STTransform::set_pos ( const LPoint3 &  pos )

inline

Replaces the translation component.

Definition at line 116 of file stTransform.I.

set_rotate()

void STTransform::set_rotate ( PN_stdfloat  rotate )

inline

Replaces the rotation component.

Accepts a rotation in degrees counter- clockwise around the vertical axis.

Definition at line 133 of file stTransform.I.

set_scale()

void STTransform::set_scale ( PN_stdfloat  scale )

inline

Replaces the scale component.

Accepts a uniform scale value.

Definition at line 150 of file stTransform.I.

write_datagram()

void STTransform::write_datagram	(	BamWriter *	manager,
		Datagram &	dg
	)

Writes the contents of this object to the datagram for shipping out to a Bam file.

Definition at line 56 of file stTransform.cxx.

References Datagram::add_stdfloat().

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

• panda/src/speedtree/stTransform.h
• panda/src/speedtree/stTransform.cxx
• panda/src/speedtree/stTransform.I