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LMatrix4d Class Reference

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

#include "lmatrix.h"

Classes

class  CRow
 
class  Row
 

Public Types

enum  { num_components = 16, is_int = 0 }
 
typedef const double * const_iterator
 
typedef LSimpleMatrix< double, 4, 4 > EMatrix4
 
typedef const double * iterator
 
typedef double numeric_type
 

Public Member Functions

 LMatrix4d (const LMatrix4d &other)
 
 LMatrix4d (const UnalignedLMatrix4d &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)
 
 LMatrix4d (const EMatrix4 &m)
 
void accumulate (const LMatrix4d &other, double weight)
 Computes (*this) += other * weight. More...
 
size_t add_hash (size_t hash) const
 Adds the vector into the running hash. More...
 
size_t add_hash (size_t hash, double threshold) const
 Adds the vector into the running hash. More...
 
bool almost_equal (const LMatrix4d &other, double threshold) const
 Returns true if two matrices are memberwise equal within a specified tolerance. More...
 
bool almost_equal (const LMatrix4d &other) const
 Returns true if two matrices are memberwise equal within a default tolerance based on the numeric type. More...
 
iterator begin ()
 Returns an iterator that may be used to traverse the elements of the matrix, STL-style. More...
 
const_iterator begin () const
 Returns an iterator that may be used to traverse the elements of the matrix, STL-style. More...
 
int compare_to (const LMatrix4d &other) const
 This flavor of compare_to uses a default threshold value based on the numeric type. More...
 
int compare_to (const LMatrix4d &other, double threshold) const
 Sorts matrices lexicographically, componentwise. More...
 
void componentwise_mult (const LMatrix4d &other)
 
iterator end ()
 Returns an iterator that may be used to traverse the elements of the matrix, STL-style. More...
 
const_iterator end () const
 Returns an iterator that may be used to traverse the elements of the matrix, STL-style. More...
 
void fill (double fill_value)
 Sets each element of the matrix to the indicated fill_value. More...
 
void generate_hash (ChecksumHashGenerator &hashgen) const
 Adds the vector to the indicated hash generator. More...
 
void generate_hash (ChecksumHashGenerator &hashgen, double scale) const
 Adds the vector to the indicated hash generator. More...
 
double get_cell (int row, int col) const
 Returns a particular element of the matrix. More...
 
LVecBase4d get_col (int col) const
 Retrieves the indicated column of the matrix as a 4-component vector. More...
 
LVecBase3d get_col3 (int col) const
 Retrieves the indicated column of the matrix as a 3-component vector, ignoring the last row. More...
 
const double * get_data () const
 Returns the address of the first of the nine data elements in the matrix. More...
 
size_t get_hash () const
 Returns a suitable hash for phash_map. More...
 
size_t get_hash (double threshold) const
 Returns a suitable hash for phash_map. More...
 
int get_num_components () const
 Returns the number of elements in the matrix, 16. More...
 
LVecBase4d get_row (int row) const
 Retrieves the indicated row of the matrix as a 4-component vector. More...
 
void get_row (LVecBase4d &result_vec, int row) const
 Stores the indicated row of the matrix as a 4-component vector. More...
 
LVecBase3d get_row3 (int row) const
 Retrieves the row column of the matrix as a 3-component vector, ignoring the last column. More...
 
void get_row3 (LVecBase3d &result_vec, int row) const
 Stores the row column of the matrix as a 3-component vector, ignoring the last column. More...
 
LMatrix3d get_upper_3 () const
 Retrieves the upper 3x3 submatrix. More...
 
bool invert_affine_from (const LMatrix4d &other)
 Performs an invert of the indicated matrix, storing the result in this matrix. More...
 
bool invert_from (const LMatrix4d &other)
 Computes the inverse of the other matrix, and stores the result in this matrix. More...
 
bool invert_in_place ()
 Inverts the current matrix. More...
 
bool is_identity () const
 Returns true if this is (close enough to) the identity matrix, false otherwise. More...
 
bool is_nan () const
 Returns true if any component of the matrix is not-a-number, false otherwise. More...
 
 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* (const LMatrix4d &other) const
 
LMatrix4d operator* (double scalar) const
 
LMatrix4doperator*= (const LMatrix4d &other)
 
LMatrix4doperator*= (double scalar)
 
LMatrix4doperator+= (const LMatrix4d &other)
 Performs a memberwise addition between two matrices. More...
 
LMatrix4doperator-= (const LMatrix4d &other)
 Performs a memberwise addition between two matrices. More...
 
LMatrix4d operator/ (double scalar) const
 
LMatrix4doperator/= (double scalar)
 
bool operator< (const LMatrix4d &other) const
 This performs a lexicographical comparison. More...
 
LMatrix4doperator= (const LMatrix4d &other)
 
LMatrix4doperator= (const UnalignedLMatrix4d &other)
 
LMatrix4doperator= (double fill_value)
 
bool operator== (const LMatrix4d &other) const
 
CRow operator[] (int i) const
 
Row operator[] (int i)
 
void output (ostream &out) const
 
void read_datagram (DatagramIterator &source)
 Reads the matrix from the Datagram using get_stdfloat(). More...
 
void read_datagram_fixed (DatagramIterator &scan)
 Reads the matrix from the Datagram using get_float32() or get_float64(). More...
 
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. More...
 
void set_col (int col, const LVecBase4d &v)
 Replaces the indicated column of the matrix. More...
 
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. More...
 
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. More...
 
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. More...
 
void set_row (int row, const LVecBase4d &v)
 Replaces the indicated row of the matrix. More...
 
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. More...
 
void set_scale_mat (const LVecBase3d &scale)
 Fills mat with a matrix that applies the indicated scale in each of the three axes. More...
 
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. More...
 
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. More...
 
void set_translate_mat (const LVecBase3d &trans)
 Fills mat with a matrix that applies the indicated translation. More...
 
void set_upper_3 (const LMatrix3d &upper3)
 Sets the upper 3x3 submatrix. More...
 
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 using add_stdfloat(). More...
 
void write_datagram_fixed (Datagram &destination) const
 Writes the matrix to the Datagram using add_float32() or add_float64(), depending on the type of floats in the matrix, regardless of the setting of Datagram::set_stdfloat_double(). More...
 
LVecBase4d xform (const LVecBase4d &v) const
 4-component vector or point times matrix. More...
 
void xform_in_place (LVecBase4d &v) const
 4-component vector or point times matrix. More...
 
LVecBase3d xform_point (const LVecBase3d &v) const
 The matrix transforms a 3-component point (including translation component) and returns the result. More...
 
LVecBase3d xform_point_general (const LVecBase3d &v) const
 The matrix transforms a 3-component point (including translation component) and returns the result, as a fully general operation. More...
 
void xform_point_general_in_place (LVecBase3d &v) const
 The matrix transforms a 3-component point (including translation component), as a fully general operation. More...
 
void xform_point_in_place (LVecBase3d &v) const
 The matrix transforms a 3-component point (including translation component). More...
 
LVecBase3d xform_vec (const LVecBase3d &v) const
 The matrix transforms a 3-component vector (without translation component) and returns the result. More...
 
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. More...
 
void xform_vec_general_in_place (LVecBase3d &v) const
 The matrix transforms a 3-component vector (without translation component), as a fully general operation. More...
 
void xform_vec_in_place (LVecBase3d &v) const
 The matrix transforms a 3-component vector (without translation component). More...
 

Static Public Member Functions

static const LMatrix4dconvert_mat (CoordinateSystem from, CoordinateSystem to)
 Returns a matrix that transforms from the indicated coordinate system to the indicated coordinate system. More...
 
static TypeHandle get_class_type ()
 
static const LMatrix4dident_mat ()
 Returns an identity matrix. More...
 
static void init_type ()
 
static const LMatrix4dones_mat ()
 Returns an matrix filled with ones. More...
 
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. More...
 
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. More...
 
static LMatrix4d scale_mat (const LVecBase3d &scale)
 Returns a matrix that applies the indicated scale in each of the three axes. More...
 
static LMatrix4d scale_mat (double sx, double sy, double sz)
 Returns a matrix that applies the indicated scale in each of the three axes. More...
 
static LMatrix4d scale_mat (double scale)
 Returns a matrix that applies the indicated uniform scale. More...
 
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. More...
 
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. More...
 
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. More...
 
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. More...
 
static int size ()
 Returns 4: the number of rows of a LMatrix4. More...
 
static LMatrix4d translate_mat (const LVecBase3d &trans)
 Returns a matrix that applies the indicated translation. More...
 
static LMatrix4d translate_mat (double tx, double ty, double tz)
 Returns a matrix that applies the indicated translation. More...
 
static const LMatrix4dy_to_z_up_mat ()
 Returns a matrix that transforms from the Y-up coordinate system to the Z-up coordinate system. More...
 
static const LMatrix4dz_to_y_up_mat ()
 Returns a matrix that transforms from the Y-up coordinate system to the Z-up coordinate system. More...
 
static const LMatrix4dzeros_mat ()
 Returns an matrix filled with zeros. More...
 

Public Attributes

EMatrix4 _m
 

Detailed Description

This is a 4-by-4 transform matrix.

Definition at line 4716 of file lmatrix.h.

Member Function Documentation

◆ accumulate()

void LMatrix4d::accumulate ( const LMatrix4d other,
double  weight 
)
inline

Computes (*this) += other * weight.

Definition at line 6565 of file lmatrix.h.

◆ add_hash() [1/2]

size_t LMatrix4d::add_hash ( size_t  hash) const
inline

Adds the vector into the running hash.

Definition at line 5862 of file lmatrix.h.

◆ add_hash() [2/2]

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

Adds the vector into the running hash.

Definition at line 5872 of file lmatrix.h.

References floating_point_hash< Key >::add_hash().

◆ almost_equal() [1/2]

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

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

This is faster than the equivalence operator as this doesn't have to guarantee that it is transitive.

Definition at line 2058 of file lmatrix.cxx.

Referenced by EggXfmSAnim::add_data(), DaeCharacter::bind_joints(), MayaToEggConverter::clear(), MaxToEggConverter::convert(), FltToEggLevelState::get_synthetic_group(), SoftNodeDesc::get_transform(), EggXfmSAnim::set_value(), and EggTransform::transform_is_identity().

◆ almost_equal() [2/2]

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 6844 of file lmatrix.h.

◆ begin() [1/2]

LMatrix4d::iterator LMatrix4d::begin ( )
inline

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

Definition at line 5754 of file lmatrix.h.

◆ begin() [2/2]

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 5776 of file lmatrix.h.

◆ compare_to() [1/2]

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 5832 of file lmatrix.h.

◆ compare_to() [2/2]

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 1903 of file lmatrix.cxx.

◆ convert_mat()

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 1835 of file lmatrix.cxx.

Referenced by EggData::set_coordinate_system().

◆ end() [1/2]

LMatrix4d::iterator LMatrix4d::end ( )
inline

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

Definition at line 5765 of file lmatrix.h.

◆ end() [2/2]

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 5787 of file lmatrix.h.

◆ fill()

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 5358 of file lmatrix.h.

◆ generate_hash() [1/2]

void LMatrix4d::generate_hash ( ChecksumHashGenerator hashgen) const
inline

Adds the vector to the indicated hash generator.

Definition at line 6854 of file lmatrix.h.

References LMatrix4f::get_data().

◆ generate_hash() [2/2]

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

Adds the vector to the indicated hash generator.

Definition at line 2152 of file lmatrix.cxx.

References ChecksumHashGenerator::add_fp().

◆ get_cell()

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

Returns a particular element of the matrix.

Definition at line 5709 of file lmatrix.h.

◆ get_col()

LVecBase4d LMatrix4d::get_col ( int  col) const
inline

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

Definition at line 5559 of file lmatrix.h.

◆ get_col3()

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 5611 of file lmatrix.h.

◆ get_data()

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 5733 of file lmatrix.h.

Referenced by Shader::get_language(), and XFileDataObject::set().

◆ get_hash() [1/2]

size_t LMatrix4d::get_hash ( ) const
inline

Returns a suitable hash for phash_map.

Definition at line 5842 of file lmatrix.h.

◆ get_hash() [2/2]

size_t LMatrix4d::get_hash ( double  threshold) const
inline

Returns a suitable hash for phash_map.

Definition at line 5852 of file lmatrix.h.

◆ get_num_components()

int LMatrix4d::get_num_components ( ) const
inline

Returns the number of elements in the matrix, 16.

Definition at line 5743 of file lmatrix.h.

Referenced by Shader::get_language().

◆ get_row() [1/2]

LVecBase4d LMatrix4d::get_row ( int  row) const
inline

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

Definition at line 5523 of file lmatrix.h.

Referenced by GeomVertexWriter::add_matrix4d(), and GeomVertexWriter::set_matrix4d().

◆ get_row() [2/2]

void LMatrix4d::get_row ( LVecBase4d result_vec,
int  row 
) const
inline

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

Definition at line 5541 of file lmatrix.h.

◆ get_row3() [1/2]

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 5577 of file lmatrix.h.

Referenced by EggVertexPool::transform().

◆ get_row3() [2/2]

void LMatrix4d::get_row3 ( LVecBase3d result_vec,
int  row 
) const
inline

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

Definition at line 5594 of file lmatrix.h.

◆ get_upper_3()

LMatrix3d LMatrix4d::get_upper_3 ( ) const
inline

Retrieves the upper 3x3 submatrix.

Definition at line 5434 of file lmatrix.h.

◆ ident_mat()

const LMatrix4d & LMatrix4d::ident_mat ( )
inlinestatic

◆ invert_affine_from()

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 there was a singularity.

Definition at line 6514 of file lmatrix.h.

References LMatrix4f::get_upper_3().

◆ invert_from()

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 6438 of file lmatrix.h.

Referenced by EggJointData::add_back_pointer(), EggGroup::as_transform(), DaeCharacter::bind_joints(), EggLoader::make_polyset(), and DXFFile::ocs_2_wcs().

◆ invert_in_place()

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 6553 of file lmatrix.h.

Referenced by EggTopstrip::adjust_transform(), MaxToEggConverter::convert(), EggJointData::get_net_frame_inv(), and Triangulator3::triangulate().

◆ is_identity()

bool LMatrix4d::is_identity ( ) const
inline

Returns true if this is (close enough to) the identity matrix, false otherwise.

Definition at line 5698 of file lmatrix.h.

◆ is_nan()

bool LMatrix4d::is_nan ( ) const
inline

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

Definition at line 5682 of file lmatrix.h.

◆ ones_mat()

const LMatrix4d & LMatrix4d::ones_mat ( )
inlinestatic

Returns an matrix filled with ones.

Definition at line 5178 of file lmatrix.h.

◆ operator+=()

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

Performs a memberwise addition between two matrices.

Definition at line 6198 of file lmatrix.h.

◆ operator-=()

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

Performs a memberwise addition between two matrices.

Definition at line 6234 of file lmatrix.h.

◆ operator<()

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 5801 of file lmatrix.h.

◆ read_datagram()

void LMatrix4d::read_datagram ( DatagramIterator source)

Reads the matrix from the Datagram using get_stdfloat().

Definition at line 2341 of file lmatrix.cxx.

References DatagramIterator::get_stdfloat(), and TypeHandle::none().

◆ read_datagram_fixed()

void LMatrix4d::read_datagram_fixed ( DatagramIterator scan)

Reads the matrix from the Datagram using get_float32() or get_float64().

See write_datagram_fixed().

Definition at line 2306 of file lmatrix.cxx.

References DatagramIterator::get_float32(), and DatagramIterator::get_float64().

◆ rotate_mat()

LMatrix4d LMatrix4d::rotate_mat ( double  angle,
const LVecBase3d axis,
CoordinateSystem  cs = CS_default 
)
inlinestatic

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

Definition at line 6690 of file lmatrix.h.

References LMatrix4f::set_rotate_mat().

Referenced by EggTransform::add_rotate3d(), VRMLToEggConverter::convert_file(), EggBase::convert_paths(), FltTransformRotateAboutPoint::get_angle(), FltTransformRotateAboutEdge::get_angle(), and FltTransformRotateScale::get_angle().

◆ rotate_mat_normaxis()

LMatrix4d LMatrix4d::rotate_mat_normaxis ( double  angle,
const LVecBase3d axis,
CoordinateSystem  cs = CS_default 
)
inlinestatic

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

Assumes axis has been prenormalized.

Definition at line 6705 of file lmatrix.h.

References LMatrix4f::set_rotate_mat_normaxis().

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

◆ scale_mat() [1/3]

LMatrix4d LMatrix4d::scale_mat ( const LVecBase3d scale)
inlinestatic

◆ scale_mat() [2/3]

LMatrix4d LMatrix4d::scale_mat ( double  sx,
double  sy,
double  sz 
)
inlinestatic

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

Definition at line 6736 of file lmatrix.h.

◆ scale_mat() [3/3]

LMatrix4d LMatrix4d::scale_mat ( double  scale)
inlinestatic

Returns a matrix that applies the indicated uniform scale.

Definition at line 6750 of file lmatrix.h.

◆ scale_shear_mat() [1/2]

LMatrix4d LMatrix4d::scale_shear_mat ( const LVecBase3d scale,
const LVecBase3d shear,
CoordinateSystem  cs = CS_default 
)
inlinestatic

Returns a matrix that applies the indicated scale and shear.

Definition at line 6791 of file lmatrix.h.

References LMatrix4f::set_scale_shear_mat().

Referenced by EggXfmSAnim::compose_with_order().

◆ scale_shear_mat() [2/2]

LMatrix4d LMatrix4d::scale_shear_mat ( double  sx,
double  sy,
double  sz,
double  shxy,
double  shxz,
double  shyz,
CoordinateSystem  cs = CS_default 
)
inlinestatic

Returns a matrix that applies the indicated scale and shear.

Definition at line 6806 of file lmatrix.h.

References LMatrix4f::set_scale_shear_mat().

◆ set_cell()

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

Changes a particular element of the matrix.

Definition at line 5720 of file lmatrix.h.

◆ set_col() [1/2]

void LMatrix4d::set_col ( int  col,
const LVecBase4d v 
)
inline

Replaces the indicated column of the matrix.

Definition at line 5469 of file lmatrix.h.

◆ set_col() [2/2]

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 5506 of file lmatrix.h.

◆ set_rotate_mat()

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 1925 of file lmatrix.cxx.

◆ set_rotate_mat_normaxis()

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 1996 of file lmatrix.cxx.

◆ set_row() [1/2]

void LMatrix4d::set_row ( int  row,
const LVecBase4d v 
)
inline

◆ set_row() [2/2]

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 5488 of file lmatrix.h.

◆ set_scale_mat()

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 6612 of file lmatrix.h.

◆ set_scale_shear_mat()

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 6638 of file lmatrix.h.

◆ set_shear_mat()

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 6626 of file lmatrix.h.

◆ set_translate_mat()

void LMatrix4d::set_translate_mat ( const LVecBase3d trans)
inline

Fills mat with a matrix that applies the indicated translation.

Definition at line 6598 of file lmatrix.h.

◆ set_upper_3()

void LMatrix4d::set_upper_3 ( const LMatrix3d upper3)
inline

Sets the upper 3x3 submatrix.

Definition at line 5409 of file lmatrix.h.

◆ shear_mat() [1/2]

LMatrix4d LMatrix4d::shear_mat ( const LVecBase3d shear,
CoordinateSystem  cs = CS_default 
)
inlinestatic

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

Definition at line 6764 of file lmatrix.h.

References LMatrix4f::set_shear_mat().

◆ shear_mat() [2/2]

LMatrix4d LMatrix4d::shear_mat ( double  shxy,
double  shxz,
double  shyz,
CoordinateSystem  cs = CS_default 
)
inlinestatic

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

Definition at line 6777 of file lmatrix.h.

References LMatrix4f::set_shear_mat().

◆ size()

int LMatrix4d::size ( )
inlinestatic

Returns 4: the number of rows of a LMatrix4.

Definition at line 5671 of file lmatrix.h.

◆ translate_mat() [1/2]

LMatrix4d LMatrix4d::translate_mat ( const LVecBase3d trans)
inlinestatic

◆ translate_mat() [2/2]

LMatrix4d LMatrix4d::translate_mat ( double  tx,
double  ty,
double  tz 
)
inlinestatic

Returns a matrix that applies the indicated translation.

Definition at line 6676 of file lmatrix.h.

◆ write_datagram()

void LMatrix4d::write_datagram ( Datagram destination) const

Writes the matrix to the Datagram using add_stdfloat().

This is appropriate when you want to write the matrix using the standard width setting, especially when you are writing a bam file.

Definition at line 2327 of file lmatrix.cxx.

References Datagram::add_stdfloat().

◆ write_datagram_fixed()

void LMatrix4d::write_datagram_fixed ( Datagram destination) const

Writes the matrix to the Datagram using add_float32() or add_float64(), depending on the type of floats in the matrix, regardless of the setting of Datagram::set_stdfloat_double().

This is appropriate when you want to write a fixed-width value to the datagram, especially when you are not writing a bam file.

Definition at line 2287 of file lmatrix.cxx.

References Datagram::add_float32(), and Datagram::add_float64().

◆ xform()

LVecBase4d LMatrix4d::xform ( const LVecBase4d v) const
inline

4-component vector or point times matrix.

This is a fully general operation.

Definition at line 5912 of file lmatrix.h.

◆ xform_in_place()

void LMatrix4d::xform_in_place ( LVecBase4d v) const
inline

4-component vector or point times matrix.

This is a fully general operation.

Definition at line 6016 of file lmatrix.h.

◆ xform_point()

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 5932 of file lmatrix.h.

Referenced by PerlinNoise3::noise().

◆ xform_point_general()

LVecBase3d LMatrix4d::xform_point_general ( const LVecBase3d v) const
inline

The matrix transforms a 3-component point (including translation component) and returns the result, as a fully general operation.

Definition at line 5957 of file lmatrix.h.

◆ xform_point_general_in_place()

void LMatrix4d::xform_point_general_in_place ( LVecBase3d v) const
inline

The matrix transforms a 3-component point (including translation component), as a fully general operation.

Definition at line 6052 of file lmatrix.h.

◆ xform_point_in_place()

void LMatrix4d::xform_point_in_place ( LVecBase3d v) const
inline

The matrix transforms a 3-component point (including translation component).

This assumes the matrix is an affine transform.

Definition at line 6034 of file lmatrix.h.

◆ xform_vec()

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 5972 of file lmatrix.h.

◆ xform_vec_general()

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 5997 of file lmatrix.h.

◆ xform_vec_general_in_place()

void LMatrix4d::xform_vec_general_in_place ( LVecBase3d v) const
inline

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

Definition at line 6083 of file lmatrix.h.

◆ xform_vec_in_place()

void LMatrix4d::xform_vec_in_place ( LVecBase3d v) const
inline

The matrix transforms a 3-component vector (without translation component).

This assumes the matrix is an orthonormal transform.

Definition at line 6065 of file lmatrix.h.

◆ y_to_z_up_mat()

const LMatrix4d & LMatrix4d::y_to_z_up_mat ( )
inlinestatic

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

Definition at line 6822 of file lmatrix.h.

◆ z_to_y_up_mat()

const LMatrix4d & LMatrix4d::z_to_y_up_mat ( )
inlinestatic

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

Definition at line 6833 of file lmatrix.h.

◆ zeros_mat()

const LMatrix4d & LMatrix4d::zeros_mat ( )
inlinestatic

Returns an matrix filled with zeros.

Definition at line 5188 of file lmatrix.h.

References UnalignedLMatrix4f::get_data().


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