This is a 4-by-4 transform matrix. More...

#include "lmatrix.h"

Classes
class	CRow
class	Row
Public Types
typedef const double *	const_iterator
typedef const double *	iterator
Public Member Functions
	LMatrix4d (const LMatrix4d &other)
	LMatrix4d (double e00, double e01, double e02, double e03, double e10, double e11, double e12, double e13, double e20, double e21, double e22, double e23, double e30, double e31, double e32, double e33)
	LMatrix4d (const LMatrix3d &upper3)
	LMatrix4d (const LMatrix3d &upper3, const LVecBase3d &trans)
size_t	add_hash (size_t hash) const
	Adds the vector into the running hash.
size_t	add_hash (size_t hash, double threshold) const
	Adds the vector into the running hash.
bool	almost_equal (const LMatrix4d &other, double threshold) const
	Returns true if two matrices are memberwise equal within a specified tolerance.
bool	almost_equal (const LMatrix4d &other) const
	Returns true if two matrices are memberwise equal within a default tolerance based on the numeric type.
iterator	begin ()
	Returns an iterator that may be used to traverse the elements of the matrix, STL-style.
const_iterator	begin () const
	Returns an iterator that may be used to traverse the elements of the matrix, STL-style.
int	compare_to (const LMatrix4d &other) const
	This flavor of compare_to uses a default threshold value based on the numeric type.
int	compare_to (const LMatrix4d &other, double threshold) const
	Sorts matrices lexicographically, componentwise.
iterator	end ()
	Returns an iterator that may be used to traverse the elements of the matrix, STL-style.
const_iterator	end () const
	Returns an iterator that may be used to traverse the elements of the matrix, STL-style.
void	fill (double fill_value)
	Sets each element of the matrix to the indicated fill_value.
void	generate_hash (ChecksumHashGenerator &hashgen) const
	Adds the vector to the indicated hash generator.
void	generate_hash (ChecksumHashGenerator &hashgen, double scale) const
	Adds the vector to the indicated hash generator.
double	get_cell (int row, int col) const
	Returns a particular element of the matrix.
LVecBase4d	get_col (int col) const
	Retrieves the indicated column of the matrix as a 4-component vector.
LVecBase3d	get_col3 (int col) const
	Retrieves the indicated column of the matrix as a 3-component vector, ignoring the last row.
const double *	get_data () const
	Returns the address of the first of the nine data elements in the matrix.
size_t	get_hash () const
	Returns a suitable hash for phash_map.
size_t	get_hash (double threshold) const
	Returns a suitable hash for phash_map.
int	get_num_components () const
	Returns the number of elements in the matrix, 16.
LVecBase4d	get_row (int row) const
	Retrieves the indicated row of the matrix as a 4-component vector.
void	get_row (LVecBase4d &result_vec, int row) const
void	get_row3 (LVecBase3d &result_vec, int row) const
LVecBase3d	get_row3 (int row) const
	Retrieves the row column of the matrix as a 3-component vector, ignoring the last column.
LMatrix3d	get_upper_3 () const
	Retrieves the upper 3x3 submatrix.
bool	invert_affine_from (const LMatrix4d &other)
	Performs an invert of the indicated matrix, storing the result in this matrix.
bool	invert_from (const LMatrix4d &other)
	Computes the inverse of the other matrix, and stores the result in this matrix.
bool	invert_in_place ()
	Inverts the current matrix.
bool	is_nan () const
	Returns true if any component of the matrix is not-a-number, false otherwise.
	MAKE_SEQ (get_rows, size, get_row)
	MAKE_SEQ (get_cols, size, get_col)
	MAKE_SEQ (get_row3s, size, get_row3)
void	multiply (const LMatrix4d &other1, const LMatrix4d &other2)
bool	operator!= (const LMatrix4d &other) const
double &	operator() (int row, int col)
double	operator() (int row, int col) const
LMatrix4d	operator* (double scalar) const
LMatrix4d	operator* (const LMatrix4d &other) const
LMatrix4d &	*operator=** (const LMatrix4d &other)
LMatrix4d &	*operator=** (double scalar)
LMatrix4d &	operator+= (const LMatrix4d &other)
	Performs a memberwise addition between two matrices.
LMatrix4d &	operator-= (const LMatrix4d &other)
	Performs a memberwise addition between two matrices.
LMatrix4d	operator/ (double scalar) const
LMatrix4d &	operator/= (double scalar)
bool	operator< (const LMatrix4d &other) const
	This performs a lexicographical comparison.
LMatrix4d &	operator= (double fill_value)
LMatrix4d &	operator= (const LMatrix4d &other)
bool	operator== (const LMatrix4d &other) const
Row	operator[] (int i)
CRow	operator[] (int i) const
void	output (ostream &out) const
void	read_datagram (DatagramIterator &scan)
	Reads itself out of the datagram.
void	set (double e00, double e01, double e02, double e03, double e10, double e11, double e12, double e13, double e20, double e21, double e22, double e23, double e30, double e31, double e32, double e33)
void	set_cell (int row, int col, double value)
	Changes a particular element of the matrix.
void	set_col (int col, const LVecBase4d &v)
	Replaces the indicated column of the matrix.
void	set_col (int col, const LVecBase3d &v)
	Replaces the indicated column of the matrix with the indicated 3-component vector, ignoring the last row.
void	set_rotate_mat (double angle, const LVecBase3d &axis, CoordinateSystem cs=CS_default)
	Sets mat to a matrix that rotates by the given angle in degrees counterclockwise about the indicated vector.
void	set_rotate_mat_normaxis (double angle, const LVecBase3d &axis, CoordinateSystem cs=CS_default)
	Fills mat with a matrix that rotates by the given angle in degrees counterclockwise about the indicated vector.
void	set_row (int row, const LVecBase3d &v)
	Replaces the indicated row of the matrix with the indicated 3-component vector, ignoring the last column.
void	set_row (int row, const LVecBase4d &v)
	Replaces the indicated row of the matrix.
void	set_scale_mat (const LVecBase3d &scale)
	Fills mat with a matrix that applies the indicated scale in each of the three axes.
void	set_scale_shear_mat (const LVecBase3d &scale, const LVecBase3d &shear, CoordinateSystem cs=CS_default)
	Fills mat with a matrix that applies the indicated scale and shear.
void	set_shear_mat (const LVecBase3d &shear, CoordinateSystem cs=CS_default)
	Fills mat with a matrix that applies the indicated shear in each of the three planes.
void	set_translate_mat (const LVecBase3d &trans)
	Fills mat with a matrix that applies the indicated translation.
void	set_upper_3 (const LMatrix3d &upper3)
	Sets the upper 3x3 submatrix.
void	transpose_from (const LMatrix4d &other)
void	transpose_in_place ()
void	write (ostream &out, int indent_level=0) const
void	write_datagram (Datagram &destination) const
	Writes the matrix to the datagram.
LVecBase4d	xform (const LVecBase4d &v) const
	4-component vector or point times matrix.
LVecBase3d	xform_point (const LVecBase3d &v) const
	The matrix transforms a 3-component point (including translation component) and returns the result.
LVecBase3d	xform_vec (const LVecBase3d &v) const
	The matrix transforms a 3-component vector (without translation component) and returns the result.
LVecBase3d	xform_vec_general (const LVecBase3d &v) const
	The matrix transforms a 3-component vector (without translation component) and returns the result, as a fully general operation.
Static Public Member Functions
static const LMatrix4d &	convert_mat (CoordinateSystem from, CoordinateSystem to)
	Returns a matrix that transforms from the indicated coordinate system to the indicated coordinate system.
static TypeHandle	get_class_type ()
static const LMatrix4d &	ident_mat ()
	Returns an identity matrix.
static void	init_type ()
static const LMatrix4d &	ones_mat ()
	Returns an matrix filled with ones.
static LMatrix4d	rotate_mat (double angle, const LVecBase3d &axis, CoordinateSystem cs=CS_default)
	Returns a matrix that rotates by the given angle in degrees counterclockwise about the indicated vector.
static LMatrix4d	rotate_mat_normaxis (double angle, const LVecBase3d &axis, CoordinateSystem cs=CS_default)
	Returns a matrix that rotates by the given angle in degrees counterclockwise about the indicated vector.
static LMatrix4d	scale_mat (const LVecBase3d &scale)
	Returns a matrix that applies the indicated scale in each of the three axes.
static LMatrix4d	scale_mat (double sx, double sy, double sz)
	Returns a matrix that applies the indicated scale in each of the three axes.
static LMatrix4d	scale_mat (double scale)
	Returns a matrix that applies the indicated uniform scale.
static LMatrix4d	scale_shear_mat (const LVecBase3d &scale, const LVecBase3d &shear, CoordinateSystem cs=CS_default)
	Returns a matrix that applies the indicated scale and shear.
static LMatrix4d	scale_shear_mat (double sx, double sy, double sz, double shxy, double shxz, double shyz, CoordinateSystem cs=CS_default)
	Returns a matrix that applies the indicated scale and shear.
static LMatrix4d	shear_mat (double shxy, double shxz, double shyz, CoordinateSystem cs=CS_default)
	Returns a matrix that applies the indicated shear in each of the three planes.
static LMatrix4d	shear_mat (const LVecBase3d &shear, CoordinateSystem cs=CS_default)
	Returns a matrix that applies the indicated shear in each of the three planes.
static int	size ()
	Returns 4: the number of rows of a LMatrix4.
static LMatrix4d	translate_mat (double tx, double ty, double tz)
	Returns a matrix that applies the indicated translation.
static LMatrix4d	translate_mat (const LVecBase3d &trans)
	Returns a matrix that applies the indicated translation.
static const LMatrix4d &	y_to_z_up_mat ()
	Returns a matrix that transforms from the Y-up coordinate system to the Z-up coordinate system.
static const LMatrix4d &	z_to_y_up_mat ()
	Returns a matrix that transforms from the Y-up coordinate system to the Z-up coordinate system.
static const LMatrix4d &	zeros_mat ()
	Returns an matrix filled with zeros.
Public Attributes
union {
double data [4 *4]
struct {
double _00
double _01
double _02
double _03
double _10
double _11
double _12
double _13
double _20
double _21
double _22
double _23
double _30
double _31
double _32
double _33
} m
}	_m

Detailed Description

This is a 4-by-4 transform matrix.

Definition at line 3992 of file lmatrix.h.

Member Function Documentation

size_t LMatrix4d::add_hash ( size_t hash ) const [inline]

Adds the vector into the running hash.

Definition at line 4979 of file lmatrix.h.

size_t LMatrix4d::add_hash	(	size_t	hash,
		double	threshold
	)		const `[inline]`

Adds the vector into the running hash.

Definition at line 4989 of file lmatrix.h.

bool LMatrix4d::almost_equal	(	const LMatrix4d &	other,
		double	threshold
	)		const

Returns true if two matrices are memberwise equal within a specified tolerance.

Definition at line 2057 of file lmatrix.cxx.

Referenced by EggJointData::add_back_pointer(), EggXfmSAnim::add_data(), FltToEggLevelState::get_synthetic_group(), SoftNodeDesc::get_transform(), EggTexture::is_equivalent_to(), EggXfmSAnim::set_value(), and EggTransform::transform_is_identity().

bool LMatrix4d::almost_equal ( const LMatrix4d & other ) const [inline]

Returns true if two matrices are memberwise equal within a default tolerance based on the numeric type.

Definition at line 5749 of file lmatrix.h.

LMatrix4d::iterator LMatrix4d::begin ( ) [inline]

Returns an iterator that may be used to traverse the elements of the matrix, STL-style.

Definition at line 4871 of file lmatrix.h.

LMatrix4d::const_iterator LMatrix4d::begin ( ) const [inline]

Returns an iterator that may be used to traverse the elements of the matrix, STL-style.

Definition at line 4893 of file lmatrix.h.

int LMatrix4d::compare_to ( const LMatrix4d & other ) const [inline]

This flavor of compare_to uses a default threshold value based on the numeric type.

Definition at line 4949 of file lmatrix.h.

Referenced by EggTexture::sorts_less_than().

int LMatrix4d::compare_to	(	const LMatrix4d &	other,
		double	threshold
	)		const

Sorts matrices lexicographically, componentwise.

Returns a number less than 0 if this matrix sorts before the other one, greater than zero if it sorts after, 0 if they are equivalent (within the indicated tolerance).

Definition at line 1906 of file lmatrix.cxx.

const LMatrix4d & LMatrix4d::convert_mat	(	CoordinateSystem	from,
		CoordinateSystem	to
	)		`[static]`

Returns a matrix that transforms from the indicated coordinate system to the indicated coordinate system.

Definition at line 1838 of file lmatrix.cxx.

Referenced by EggData::set_coordinate_system().

LMatrix4d::const_iterator LMatrix4d::end ( ) const [inline]

Returns an iterator that may be used to traverse the elements of the matrix, STL-style.

Definition at line 4904 of file lmatrix.h.

LMatrix4d::iterator LMatrix4d::end ( ) [inline]

Returns an iterator that may be used to traverse the elements of the matrix, STL-style.

Definition at line 4882 of file lmatrix.h.

void LMatrix4d::fill ( double fill_value ) [inline]

Sets each element of the matrix to the indicated fill_value.

This is of questionable value, but is sometimes useful when initializing to zero.

Definition at line 4551 of file lmatrix.h.

void LMatrix4d::generate_hash ( ChecksumHashGenerator & hashgen ) const [inline]

Adds the vector to the indicated hash generator.

Definition at line 5759 of file lmatrix.h.

void LMatrix4d::generate_hash	(	ChecksumHashGenerator &	hashgen,
		double	scale
	)		const

Adds the vector to the indicated hash generator.

Definition at line 2179 of file lmatrix.cxx.

double LMatrix4d::get_cell	(	int	row,
		int	col
	)		const `[inline]`

Returns a particular element of the matrix.

Definition at line 4826 of file lmatrix.h.

LVecBase4d LMatrix4d::get_col ( int col ) const [inline]

Retrieves the indicated column of the matrix as a 4-component vector.

Definition at line 4710 of file lmatrix.h.

LVecBase3d LMatrix4d::get_col3 ( int col ) const [inline]

Retrieves the indicated column of the matrix as a 3-component vector, ignoring the last row.

Definition at line 4744 of file lmatrix.h.

const double * LMatrix4d::get_data ( ) const [inline]

Returns the address of the first of the nine data elements in the matrix.

The remaining elements occupy the next eight positions in row-major order.

Definition at line 4850 of file lmatrix.h.

Referenced by XFileDataObject::set().

size_t LMatrix4d::get_hash ( ) const [inline]

Returns a suitable hash for phash_map.

Definition at line 4959 of file lmatrix.h.

size_t LMatrix4d::get_hash ( double threshold ) const [inline]

Returns a suitable hash for phash_map.

Definition at line 4969 of file lmatrix.h.

int LMatrix4d::get_num_components ( ) const [inline]

Returns the number of elements in the matrix, 16.

Definition at line 4860 of file lmatrix.h.

LVecBase4d LMatrix4d::get_row ( int row ) const [inline]

Retrieves the indicated row of the matrix as a 4-component vector.

Definition at line 4688 of file lmatrix.h.

LVecBase3d LMatrix4d::get_row3 ( int row ) const [inline]

Retrieves the row column of the matrix as a 3-component vector, ignoring the last column.

Definition at line 4724 of file lmatrix.h.

Referenced by EggVertexPool::transform().

LMatrix3d LMatrix4d::get_upper_3 ( ) const [inline]

Retrieves the upper 3x3 submatrix.

Definition at line 4619 of file lmatrix.h.

const LMatrix4d & LMatrix4d::ident_mat ( ) [inline, static]

Returns an identity matrix.

This function definition must appear first, since some inline functions below take advantage of it.

Definition at line 4380 of file lmatrix.h.

Referenced by FltBead::clear_transform(), EggXfmSAnim::compose_with_order(), VRMLToEggConverter::convert_file(), EggMatrixTablePointer::extend_to(), EggTransform::get_component_mat4(), EggMatrixTablePointer::get_frame(), EggJointNodePointer::get_frame(), EggJointData::get_frame(), EggJointData::get_net_frame(), EggJointData::get_net_frame_inv(), EggNode::get_node_frame(), EggNode::get_node_frame_inv(), EggNode::get_node_to_vertex(), EggJointData::get_rest_frame(), FltToEggLevelState::get_synthetic_group(), SoftNodeDesc::get_transform(), FltBead::get_transform(), EggNode::get_vertex_frame(), EggNode::get_vertex_frame_inv(), EggNode::get_vertex_to_node(), EggTransform::internal_clear_transform(), EggMatrixTablePointer::make_new_joint(), EggJointData::score_reparent_to(), and EggTransform::transform_is_identity().

bool LMatrix4d::invert_affine_from ( const LMatrix4d & other ) [inline]

Performs an invert of the indicated matrix, storing the result in this matrix.

The calculation is only correct of the other matrix represents an affine transform.

The other matrix must be a different object than this matrix. However, if you need to invert a matrix in place, see invert_in_place.

The return value is true if the matrix was successfully inverted, false if the was a singularity.

Definition at line 5451 of file lmatrix.h.

bool LMatrix4d::invert_from ( const LMatrix4d & other ) [inline]

Computes the inverse of the other matrix, and stores the result in this matrix.

This is a fully general operation and makes no assumptions about the type of transform represented by the matrix.

The other matrix must be a different object than this matrix. However, if you need to invert a matrix in place, see invert_in_place.

The return value is true if the matrix was successfully inverted, false if the was a singularity.

Definition at line 5400 of file lmatrix.h.

Referenced by EggGroup::adjust_under(), and DXFFile::compute_ocs().

bool LMatrix4d::invert_in_place ( ) [inline]

Inverts the current matrix.

Returns true if the inverse is successful, false if the matrix was singular.

Definition at line 5490 of file lmatrix.h.

Referenced by EggTopstrip::adjust_transform(), and EggJointData::get_net_frame_inv().

bool LMatrix4d::is_nan ( ) const [inline]

Returns true if any component of the matrix is not-a-number, false otherwise.

Definition at line 4811 of file lmatrix.h.

const LMatrix4d & LMatrix4d::ones_mat ( ) [inline, static]

Returns an matrix filled with ones.

Definition at line 4390 of file lmatrix.h.

LMatrix4d & LMatrix4d::operator+= ( const LMatrix4d & other ) [inline]

Performs a memberwise addition between two matrices.

Definition at line 5201 of file lmatrix.h.

LMatrix4d & LMatrix4d::operator-= ( const LMatrix4d & other ) [inline]

Performs a memberwise addition between two matrices.

Definition at line 5232 of file lmatrix.h.

bool LMatrix4d::operator< ( const LMatrix4d & other ) const [inline]

This performs a lexicographical comparison.

It's of questionable mathematical meaning, but sometimes has a practical purpose for sorting unique vectors, especially in an STL container. Also see compare_to().

Definition at line 4918 of file lmatrix.h.

void LMatrix4d::read_datagram ( DatagramIterator & scan )

Reads itself out of the datagram.

Definition at line 2321 of file lmatrix.cxx.

LMatrix4d LMatrix4d::rotate_mat	(	double	angle,
		const LVecBase3d &	axis,
		CoordinateSystem	cs = `CS_default`
	)		`[inline, static]`

Returns a matrix that rotates by the given angle in degrees counterclockwise about the indicated vector.

Definition at line 5595 of file lmatrix.h.

Referenced by EggTransform::add_rotate3d(), EggBase::ns_dispatch_rotate_axis(), and EggBase::ns_dispatch_rotate_xyz().

LMatrix4d LMatrix4d::rotate_mat_normaxis	(	double	angle,
		const LVecBase3d &	axis,
		CoordinateSystem	cs = `CS_default`
	)		`[inline, static]`

Returns a matrix that rotates by the given angle in degrees counterclockwise about the indicated vector.

Assumes axis has been prenormalized.

Definition at line 5610 of file lmatrix.h.

Referenced by EggTransform::add_rotate2d(), EggTransform::add_rotx(), EggTransform::add_roty(), EggTransform::add_rotz(), and EggXfmSAnim::compose_with_order().

LMatrix4d LMatrix4d::scale_mat ( const LVecBase3d & scale ) [inline, static]

Returns a matrix that applies the indicated scale in each of the three axes.

Definition at line 5626 of file lmatrix.h.

Referenced by EggTransform::add_scale2d(), EggTransform::add_scale3d(), EggTransform::add_uniform_scale(), SomethingToEgg::apply_units_scale(), EggToSomething::apply_units_scale(), ImageTransformColors::dispatch_range(), ImageTransformColors::dispatch_scale(), EggBase::dispatch_scale(), XFileAnimationSet::FrameEntry::get_mat(), and PerlinNoise3::set_scale().

LMatrix4d LMatrix4d::scale_mat ( double scale ) [inline, static]

Returns a matrix that applies the indicated uniform scale.

Definition at line 5655 of file lmatrix.h.

LMatrix4d LMatrix4d::scale_mat	(	double	sx,
		double	sy,
		double	sz
	)		`[inline, static]`

Returns a matrix that applies the indicated scale in each of the three axes.

Definition at line 5641 of file lmatrix.h.

LMatrix4d LMatrix4d::scale_shear_mat	(	const LVecBase3d &	scale,
		const LVecBase3d &	shear,
		CoordinateSystem	cs = `CS_default`
	)		`[inline, static]`

Returns a matrix that applies the indicated scale and shear.

Definition at line 5696 of file lmatrix.h.

Referenced by EggXfmSAnim::compose_with_order().

LMatrix4d LMatrix4d::scale_shear_mat	(	double	sx,
		double	sy,
		double	sz,
		double	shxy,
		double	shxz,
		double	shyz,
		CoordinateSystem	cs = `CS_default`
	)		`[inline, static]`

Returns a matrix that applies the indicated scale and shear.

Definition at line 5711 of file lmatrix.h.

void LMatrix4d::set_cell	(	int	row,
		int	col,
		double	value
	)		`[inline]`

Changes a particular element of the matrix.

Definition at line 4837 of file lmatrix.h.

void LMatrix4d::set_col	(	int	col,
		const LVecBase4d &	v
	)		`[inline]`

Replaces the indicated column of the matrix.

Definition at line 4646 of file lmatrix.h.

void LMatrix4d::set_col	(	int	col,
		const LVecBase3d &	v
	)		`[inline]`

Replaces the indicated column of the matrix with the indicated 3-component vector, ignoring the last row.

Definition at line 4675 of file lmatrix.h.

void LMatrix4d::set_rotate_mat	(	double	angle,
		const LVecBase3d &	axis,
		CoordinateSystem	cs = `CS_default`
	)

Sets mat to a matrix that rotates by the given angle in degrees counterclockwise about the indicated vector.

Definition at line 1926 of file lmatrix.cxx.

void LMatrix4d::set_rotate_mat_normaxis	(	double	angle,
		const LVecBase3d &	axis,
		CoordinateSystem	cs = `CS_default`
	)

Fills mat with a matrix that rotates by the given angle in degrees counterclockwise about the indicated vector.

Assumes axis has been prenormalized.

Definition at line 1997 of file lmatrix.cxx.

void LMatrix4d::set_row	(	int	row,
		const LVecBase3d &	v
	)		`[inline]`

Replaces the indicated row of the matrix with the indicated 3-component vector, ignoring the last column.

Definition at line 4661 of file lmatrix.h.

void LMatrix4d::set_row	(	int	row,
		const LVecBase4d &	v
	)		`[inline]`

Replaces the indicated row of the matrix.

Definition at line 4633 of file lmatrix.h.

Referenced by XFileAnimationSet::FrameEntry::get_mat(), EggXfmSAnim::r_transform(), EggXfmAnimData::r_transform(), EggTable::r_transform(), EggGroup::r_transform(), and EggVertexPool::transform().

void LMatrix4d::set_scale_mat ( const LVecBase3d & scale ) [inline]

Fills mat with a matrix that applies the indicated scale in each of the three axes.

Definition at line 5517 of file lmatrix.h.

void LMatrix4d::set_scale_shear_mat	(	const LVecBase3d &	scale,
		const LVecBase3d &	shear,
		CoordinateSystem	cs = `CS_default`
	)		`[inline]`

Fills mat with a matrix that applies the indicated scale and shear.

Definition at line 5543 of file lmatrix.h.

void LMatrix4d::set_shear_mat	(	const LVecBase3d &	shear,
		CoordinateSystem	cs = `CS_default`
	)		`[inline]`

Fills mat with a matrix that applies the indicated shear in each of the three planes.

Definition at line 5531 of file lmatrix.h.

void LMatrix4d::set_translate_mat ( const LVecBase3d & trans ) [inline]

Fills mat with a matrix that applies the indicated translation.

Definition at line 5503 of file lmatrix.h.

void LMatrix4d::set_upper_3 ( const LMatrix3d & upper3 ) [inline]

Sets the upper 3x3 submatrix.

Definition at line 4598 of file lmatrix.h.

LMatrix4d LMatrix4d::shear_mat	(	double	shxy,
		double	shxz,
		double	shyz,
		CoordinateSystem	cs = `CS_default`
	)		`[inline, static]`

Returns a matrix that applies the indicated shear in each of the three planes.

Definition at line 5682 of file lmatrix.h.

LMatrix4d LMatrix4d::shear_mat	(	const LVecBase3d &	shear,
		CoordinateSystem	cs = `CS_default`
	)		`[inline, static]`

Returns a matrix that applies the indicated shear in each of the three planes.

Definition at line 5669 of file lmatrix.h.

int LMatrix4d::size ( ) [inline, static]

Returns 4: the number of rows of a LMatrix4.

Definition at line 4800 of file lmatrix.h.

LMatrix4d LMatrix4d::translate_mat	(	double	tx,
		double	ty,
		double	tz
	)		`[inline, static]`

Returns a matrix that applies the indicated translation.

Definition at line 5581 of file lmatrix.h.

LMatrix4d LMatrix4d::translate_mat ( const LVecBase3d & trans ) [inline, static]

Returns a matrix that applies the indicated translation.

Definition at line 5567 of file lmatrix.h.

Referenced by EggTransform::add_translate2d(), EggTransform::add_translate3d(), EggXfmSAnim::compose_with_order(), ImageTransformColors::dispatch_add(), ImageTransformColors::dispatch_range(), EggBase::dispatch_translate(), and CLwoLayer::make_egg().

void LMatrix4d::write_datagram ( Datagram & destination ) const

Writes the matrix to the datagram.

Definition at line 2307 of file lmatrix.cxx.

LVecBase4d LMatrix4d::xform ( const LVecBase4d & v ) const [inline]

4-component vector or point times matrix.

This is a fully general operation.

Definition at line 5029 of file lmatrix.h.

LVecBase3d LMatrix4d::xform_point ( const LVecBase3d & v ) const [inline]

The matrix transforms a 3-component point (including translation component) and returns the result.

This assumes the matrix is an affine transform.

Definition at line 5045 of file lmatrix.h.

Referenced by PerlinNoise3::noise(), and ImageTransformColors::process_image().

LVecBase3d LMatrix4d::xform_vec ( const LVecBase3d & v ) const [inline]

The matrix transforms a 3-component vector (without translation component) and returns the result.

This assumes the matrix is an orthonormal transform.

Definition at line 5066 of file lmatrix.h.

LVecBase3d LMatrix4d::xform_vec_general ( const LVecBase3d & v ) const [inline]

The matrix transforms a 3-component vector (without translation component) and returns the result, as a fully general operation.

Definition at line 5087 of file lmatrix.h.

const LMatrix4d & LMatrix4d::y_to_z_up_mat ( ) [inline, static]

Returns a matrix that transforms from the Y-up coordinate system to the Z-up coordinate system.

Definition at line 5727 of file lmatrix.h.

const LMatrix4d & LMatrix4d::z_to_y_up_mat ( ) [inline, static]

Returns a matrix that transforms from the Y-up coordinate system to the Z-up coordinate system.

Definition at line 5738 of file lmatrix.h.

const LMatrix4d & LMatrix4d::zeros_mat ( ) [inline, static]

Returns an matrix filled with zeros.

Definition at line 4400 of file lmatrix.h.

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

panda/src/linmath/lmatrix.h
panda/src/linmath/lmatrix.cxx

LMatrix4d Class Reference

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