Panda3D
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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 x, double y, double z, double w) | |
LVecBase4d (const EVector4 &v) | |
LVecBase4d (const UnalignedLVecBase4d ©) | |
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 ©) |
LVecBase4d & | operator= (double fill_value) |
LVecBase4d & | operator= (const LVecBase4d ©) |
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 |
This is the base class for all three-component vectors and points.
Definition at line 1474 of file lvecBase4.h.
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().
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().