Panda3D
|
This is the base class for all three-component vectors and points. More...
#include "lvecBase4.h"
Public Types | |
typedef const double * | const_iterator |
typedef const double * | iterator |
Public Member Functions | |
LVecBase4d (const LVecBase4d ©) | |
LVecBase4d (double fill_value) | |
LVecBase4d (double x, double y, double z, double w) | |
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. | |
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 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 |
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 vector to the indicated fill_value. | |
LVecBase4d | fmax (const LVecBase4d &other) |
LVecBase4d | fmin (const LVecBase4d &other) |
void | generate_hash (ChecksumHashGenerator &hashgen, double threshold) const |
Adds the vector to the indicated hash generator. | |
void | generate_hash (ChecksumHashGenerator &hashgen) 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 (double threshold) const |
Returns a suitable hash for phash_map. | |
size_t | get_hash () 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. | |
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 | operator- (const LVecBase4d &other) 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 LVecBase4d ©) |
LVecBase4d & | operator= (double fill_value) |
bool | operator== (const LVecBase4d &other) const |
double | operator[] (int i) const |
double & | operator[] (int i) |
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) |
Function to read itself from a datagramIterator. | |
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 |
Function to write itself into a datagram. | |
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 | |
union { | |
double data [4] | |
struct { | |
double _0 | |
double _1 | |
double _2 | |
double _3 | |
} v | |
} | _v |
This is the base class for all three-component vectors and points.
Definition at line 1236 of file lvecBase4.h.
size_t LVecBase4d::add_hash | ( | size_t | hash | ) | const [inline] |
Adds the vector into the running hash.
Definition at line 2022 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 2033 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 2194 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 2209 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 1781 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 1803 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 1962 of file lvecBase4.h.
Referenced by 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 1977 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 1814 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 1792 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 1826 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 2260 of file lvecBase4.h.
void LVecBase4d::generate_hash | ( | ChecksumHashGenerator & | hashgen | ) | const [inline] |
Adds the vector to the indicated hash generator.
Definition at line 2249 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 1760 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 2000 of file lvecBase4.h.
size_t LVecBase4d::get_hash | ( | double | threshold | ) | const [inline] |
Returns a suitable hash for phash_map.
Definition at line 2011 of file lvecBase4.h.
int LVecBase4d::get_num_components | ( | ) | const [inline] |
Returns the number of elements in the vector, four.
Definition at line 1770 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 1594 of file lvecBase4.h.
double LVecBase4d::length | ( | ) | const [inline] |
Returns the length of the vector, by the Pythagorean theorem.
Definition at line 1855 of file lvecBase4.h.
double LVecBase4d::length_squared | ( | ) | const [inline] |
Returns the square of the vector's length, cheap and easy.
Definition at line 1866 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 1878 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 1926 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 1912 of file lvecBase4.h.
void LVecBase4d::read_datagram | ( | DatagramIterator & | source | ) | [inline] |
Function to read itself from a datagramIterator.
Definition at line 2294 of file lvecBase4.h.
int LVecBase4d::size | ( | ) | [inline, static] |
Returns 4: the number of components of a LVecBase4.
Definition at line 1583 of file lvecBase4.h.
const LVecBase4d & LVecBase4d::unit_w | ( | ) | [inline, static] |
Returns a unit W vector.
Reimplemented in LPoint4d, and LVector4d.
Definition at line 1538 of file lvecBase4.h.
const LVecBase4d & LVecBase4d::unit_x | ( | ) | [inline, static] |
Returns a unit X vector.
Reimplemented in LPoint4d, and LVector4d.
Definition at line 1508 of file lvecBase4.h.
const LVecBase4d & LVecBase4d::unit_y | ( | ) | [inline, static] |
Returns a unit Y vector.
Reimplemented in LPoint4d, and LVector4d.
Definition at line 1518 of file lvecBase4.h.
const LVecBase4d & LVecBase4d::unit_z | ( | ) | [inline, static] |
Returns a unit Z vector.
Reimplemented in LPoint4d, and LVector4d.
Definition at line 1528 of file lvecBase4.h.
void LVecBase4d::write_datagram | ( | Datagram & | destination | ) | const [inline] |
Function to write itself into a datagram.
Definition at line 2274 of file lvecBase4.h.
const LVecBase4d & LVecBase4d::zero | ( | ) | [inline, static] |
Returns a zero-length vector.
Reimplemented in LPoint4d, and LVector4d.
Definition at line 1498 of file lvecBase4.h.
Referenced by PNMImage::get_average_xel_a().