This is the base class for all three-component vectors and points. More...

#include "lvecBase4.h"

Inheritance diagram for LVecBase4d:

Public Types
typedef const double *	const_iterator
typedef const double *	iterator
Public Member Functions
	LVecBase4d (const LVecBase4d &copy)
	LVecBase4d (double x, double y, double z, double w)
	LVecBase4d (const EVector4 &v)
	LVecBase4d (const UnalignedLVecBase4d &copy)
	LVecBase4d (double fill_value)
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.
void	add_to_cell (int i, double value)
void	add_w (double value)
void	add_x (double value)
void	add_y (double value)
void	add_z (double value)
bool	almost_equal (const LVecBase4d &other, double threshold) const
	Returns true if two vectors are memberwise equal within a specified tolerance.
bool	almost_equal (const LVecBase4d &other) const
	Returns true if two vectors are memberwise equal within a default tolerance based on the numeric type.
const_iterator	begin () const
	Returns an iterator that may be used to traverse the elements of the matrix, STL-style.
iterator	begin ()
	Returns an iterator that may be used to traverse the elements of the matrix, STL-style.
int	compare_to (const LVecBase4d &other) const
	This flavor of compare_to uses a default threshold value based on the numeric type.
int	compare_to (const LVecBase4d &other, double threshold) const
	Sorts vectors lexicographically, componentwise.
double	dot (const LVecBase4d &other) const
const_iterator	end () const
	Returns an iterator that may be used to traverse the elements of the matrix, STL-style.
iterator	end ()
	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 vector to the indicated fill_value.
LVecBase4d	fmax (const LVecBase4d &other)
LVecBase4d	fmin (const LVecBase4d &other)
void	generate_hash (ChecksumHashGenerator &hashgen) const
	Adds the vector to the indicated hash generator.
void	generate_hash (ChecksumHashGenerator &hashgen, double threshold) const
	Adds the vector to the indicated hash generator.
double	get_cell (int i) const
const double *	get_data () const
	Returns the address of the first of the four data elements in the vector.
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 vector, four.
double	get_w () const
double	get_x () const
double	get_y () const
double	get_z () const
bool	is_nan () const
	Returns true if any component of the vector is not-a-number, false otherwise.
double	length () const
	Returns the length of the vector, by the Pythagorean theorem.
double	length_squared () const
	Returns the square of the vector's length, cheap and easy.
typedef	LINMATH_MATRIX (double, 1, 4) EVector4
bool	normalize ()
	Normalizes the vector in place.
bool	operator!= (const LVecBase4d &other) const
LVecBase4d	operator* (double scalar) const
void	*operator=** (double scalar)
LVecBase4d	operator+ (const LVecBase4d &other) const
void	operator+= (const LVecBase4d &other)
LVecBase4d	operator- (const LVecBase4d &other) const
LVecBase4d	operator- () const
void	operator-= (const LVecBase4d &other)
LVecBase4d	operator/ (double scalar) const
void	operator/= (double scalar)
bool	operator< (const LVecBase4d &other) const
	This performs a lexicographical comparison.
LVecBase4d &	operator= (const UnalignedLVecBase4d &copy)
LVecBase4d &	operator= (double fill_value)
LVecBase4d &	operator= (const LVecBase4d &copy)
bool	operator== (const LVecBase4d &other) const
double &	operator[] (int i)
double	operator[] (int i) const
void	output (ostream &out) const
LVecBase4d	project (const LVecBase4d &onto) const
	Returns a new vector representing the projection of this vector onto another one.
void	read_datagram (DatagramIterator &source)
	Reads the vector from the Datagram using get_stdfloat().
void	read_datagram_fixed (DatagramIterator &source)
	Reads the vector from the Datagram using get_float32() or get_float64().
void	set (double x, double y, double z, double w)
void	set_cell (int i, double value)
void	set_w (double value)
void	set_x (double value)
void	set_y (double value)
void	set_z (double value)
void	write_datagram (Datagram &destination) const
	Writes the vector to the Datagram using add_stdfloat().
void	write_datagram_fixed (Datagram &destination) const
	Writes the vector to the Datagram using add_float32() or add_float64(), depending on the type of floats in the vector, regardless of the setting of Datagram::set_stdfloat_double().
Static Public Member Functions
static TypeHandle	get_class_type ()
static void	init_type ()
static int	size ()
	Returns 4: the number of components of a LVecBase4.
static const LVecBase4d &	unit_w ()
	Returns a unit W vector.
static const LVecBase4d &	unit_x ()
	Returns a unit X vector.
static const LVecBase4d &	unit_y ()
	Returns a unit Y vector.
static const LVecBase4d &	unit_z ()
	Returns a unit Z vector.
static const LVecBase4d &	zero ()
	Returns a zero-length vector.
Public Attributes
EVector4	_v

Detailed Description

This is the base class for all three-component vectors and points.

Definition at line 1474 of file lvecBase4.h.

Member Function Documentation

size_t LVecBase4d::add_hash ( size_t hash ) const [inline]

Adds the vector into the running hash.

Definition at line 2324 of file lvecBase4.h.

size_t LVecBase4d::add_hash	(	size_t	hash,
		double	threshold
	)		const `[inline]`

Adds the vector into the running hash.

Definition at line 2335 of file lvecBase4.h.

bool LVecBase4d::almost_equal	(	const LVecBase4d &	other,
		double	threshold
	)		const `[inline]`

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

Definition at line 2518 of file lvecBase4.h.

bool LVecBase4d::almost_equal ( const LVecBase4d & other ) const [inline]

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

Definition at line 2533 of file lvecBase4.h.

LVecBase4d::const_iterator LVecBase4d::begin ( ) const [inline]

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

Definition at line 2083 of file lvecBase4.h.

LVecBase4d::iterator LVecBase4d::begin ( ) [inline]

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

Definition at line 2061 of file lvecBase4.h.

int LVecBase4d::compare_to ( const LVecBase4d & other ) const [inline]

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

Definition at line 2264 of file lvecBase4.h.

Referenced by EggVertexAux::compare_to(), and EggVertex::compare_to().

int LVecBase4d::compare_to	(	const LVecBase4d &	other,
		double	threshold
	)		const `[inline]`

Sorts vectors lexicographically, componentwise.

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

Definition at line 2279 of file lvecBase4.h.

LVecBase4d::const_iterator LVecBase4d::end ( ) const [inline]

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

Definition at line 2094 of file lvecBase4.h.

LVecBase4d::iterator LVecBase4d::end ( ) [inline]

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

Definition at line 2072 of file lvecBase4.h.

void LVecBase4d::fill ( double fill_value ) [inline]

Sets each element of the vector to the indicated fill_value.

This is particularly useful for initializing to zero.

Definition at line 2106 of file lvecBase4.h.

void LVecBase4d::generate_hash ( ChecksumHashGenerator & hashgen ) const [inline]

Adds the vector to the indicated hash generator.

Definition at line 2557 of file lvecBase4.h.

void LVecBase4d::generate_hash	(	ChecksumHashGenerator &	hashgen,
		double	threshold
	)		const `[inline]`

Adds the vector to the indicated hash generator.

Definition at line 2568 of file lvecBase4.h.

const double * LVecBase4d::get_data ( ) const [inline]

Returns the address of the first of the four data elements in the vector.

The remaining elements occupy the next positions consecutively in memory.

Definition at line 2040 of file lvecBase4.h.

Referenced by XFileDataObject::set().

size_t LVecBase4d::get_hash ( ) const [inline]

Returns a suitable hash for phash_map.

Definition at line 2302 of file lvecBase4.h.

size_t LVecBase4d::get_hash ( double threshold ) const [inline]

Returns a suitable hash for phash_map.

Definition at line 2313 of file lvecBase4.h.

int LVecBase4d::get_num_components ( ) const [inline]

Returns the number of elements in the vector, four.

Definition at line 2050 of file lvecBase4.h.

bool LVecBase4d::is_nan ( ) const [inline]

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

Definition at line 1874 of file lvecBase4.h.

double LVecBase4d::length ( ) const [inline]

Returns the length of the vector, by the Pythagorean theorem.

Definition at line 2139 of file lvecBase4.h.

double LVecBase4d::length_squared ( ) const [inline]

Returns the square of the vector's length, cheap and easy.

Definition at line 2155 of file lvecBase4.h.

bool LVecBase4d::normalize ( ) [inline]

Normalizes the vector in place.

Returns true if the vector was normalized, false if it was a zero-length vector.

Reimplemented in LQuaterniond.

Definition at line 2172 of file lvecBase4.h.

bool LVecBase4d::operator< ( const LVecBase4d & 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 2224 of file lvecBase4.h.

LVecBase4d LVecBase4d::project ( const LVecBase4d & onto ) const [inline]

Returns a new vector representing the projection of this vector onto another one.

The resulting vector will be a scalar multiple of onto.

Reimplemented in LPoint4d, and LVector4d.

Definition at line 2210 of file lvecBase4.h.

void LVecBase4d::read_datagram ( DatagramIterator & source ) [inline]

Reads the vector from the Datagram using get_stdfloat().

Definition at line 2645 of file lvecBase4.h.

void LVecBase4d::read_datagram_fixed ( DatagramIterator & source ) [inline]

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

See write_datagram_fixed().

Definition at line 2609 of file lvecBase4.h.

int LVecBase4d::size ( ) [inline, static]

Returns 4: the number of components of a LVecBase4.

Definition at line 1863 of file lvecBase4.h.

const LVecBase4d & LVecBase4d::unit_w ( ) [inline, static]

Returns a unit W vector.

Reimplemented in LPoint4d, and LVector4d.

Definition at line 1831 of file lvecBase4.h.

const LVecBase4d & LVecBase4d::unit_x ( ) [inline, static]

Returns a unit X vector.

Reimplemented in LPoint4d, and LVector4d.

Definition at line 1801 of file lvecBase4.h.

const LVecBase4d & LVecBase4d::unit_y ( ) [inline, static]

Returns a unit Y vector.

Reimplemented in LPoint4d, and LVector4d.

Definition at line 1811 of file lvecBase4.h.

const LVecBase4d & LVecBase4d::unit_z ( ) [inline, static]

Returns a unit Z vector.

Reimplemented in LPoint4d, and LVector4d.

Definition at line 1821 of file lvecBase4.h.

void LVecBase4d::write_datagram ( Datagram & destination ) const [inline]

Writes the vector to the Datagram using add_stdfloat().

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

Definition at line 2632 of file lvecBase4.h.

void LVecBase4d::write_datagram_fixed ( Datagram & destination ) const [inline]

Writes the vector to the Datagram using add_float32() or add_float64(), depending on the type of floats in the vector, 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 2588 of file lvecBase4.h.

const LVecBase4d & LVecBase4d::zero ( ) [inline, static]

Returns a zero-length vector.

Reimplemented in LPoint4d, and LVector4d.

Definition at line 1791 of file lvecBase4.h.

Referenced by EggVertex::get_aux(), PNMImage::get_average_xel_a(), and GeomVertexReader::get_data4d().

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

panda/src/linmath/lvecBase4.h
panda/src/linmath/lvecBase4.cxx

LVecBase4d Class Reference

Public Types

Public Member Functions

Static Public Member Functions

Public Attributes

Detailed Description

Member Function Documentation