Panda3D
|
This is the base class for all three-component vectors and points. More...
Public Member Functions | |
VBase4D () | |
VBase4D (VBase4D const copy) | |
VBase4D (double x, double y, double z, double w) | |
VBase4D (double fill_value) | |
unsigned int | addHash (unsigned int hash) |
Adds the vector into the running hash. | |
unsigned int | addHash (unsigned int hash, double threshold) |
Adds the vector into the running hash. | |
addToCell (int i, double value) | |
addW (double value) | |
addX (double value) | |
addY (double value) | |
addZ (double value) | |
bool | almostEqual (VBase4D const other) |
Returns true if two vectors are memberwise equal within a default tolerance based on the numeric type. | |
bool | almostEqual (VBase4D const other, double threshold) |
Returns true if two vectors are memberwise equal within a specified tolerance. | |
int | compareTo (VBase4D const other, double threshold) |
Sorts vectors lexicographically, componentwise. | |
int | compareTo (VBase4D const other) |
This flavor of compare_to uses a default threshold value based on the numeric type. | |
double | dot (VBase4D const other) |
fill (double fill_value) | |
Sets each element of the vector to the indicated fill_value. | |
VBase4D | fmax (VBase4D const other) |
VBase4D | fmin (VBase4D const other) |
PyObject | getattr (string attr_name) |
This is used to implement swizzle masks. | |
double | getCell (int i) |
getData () | |
Returns the address of the first of the four data elements in the vector. | |
unsigned int | getHash (double threshold) |
Returns a suitable hash for phash_map. | |
unsigned int | getHash () |
Returns a suitable hash for phash_map. | |
int | getNumComponents () |
Returns the number of elements in the vector, four. | |
double | getW () |
double | getX () |
double | getY () |
double | getZ () |
bool | isNan () |
Returns true if any component of the vector is not-a-number, false otherwise. | |
double | length () |
Returns the length of the vector, by the Pythagorean theorem. | |
double | lengthSquared () |
Returns the square of the vector's length, cheap and easy. | |
bool | normalize () |
Normalizes the vector in place. | |
operator new (unsigned int size) | |
bool | operator!= (VBase4D const other) |
VBase4D | operator* (double scalar) |
VBase4D | operator*= (double scalar) |
VBase4D | operator+ (VBase4D const other) |
VBase4D | operator+= (VBase4D const other) |
VBase4D | operator- () |
VBase4D | operator- (VBase4D const other) |
VBase4D | operator-= (VBase4D const other) |
VBase4D | operator/ (double scalar) |
VBase4D | operator/= (double scalar) |
bool | operator< (VBase4D const other) |
This performs a lexicographical comparison. | |
VBase4D | operator= (double fill_value) |
VBase4D | operator= (VBase4D const copy) |
bool | operator== (VBase4D const other) |
double | operator[] (int i) |
operator[] (int i) | |
output (ostream out) | |
VBase4D | project (VBase4D const onto) |
Returns a new vector representing the projection of this vector onto another one. | |
pythonRepr (ostream out, string class_name) | |
PyObject | reduce (PyObject self) |
This special Python method is implement to provide support for the pickle module. | |
set (double x, double y, double z, double w) | |
int | setattr (PyObject self, string attr_name, PyObject assign) |
This is used to implement write masks. | |
setCell (int i, double value) | |
setitem (int i, double v) | |
setW (double value) | |
setX (double value) | |
setY (double value) | |
setZ (double value) | |
Static Public Member Functions | |
static TypeHandle | getClassType () |
static int | size () |
Returns 4: the number of components of a LVecBase4. | |
static VBase4D const | unitW () |
Returns a unit W vector. | |
static VBase4D const | unitX () |
Returns a unit X vector. | |
static VBase4D const | unitY () |
Returns a unit Y vector. | |
static VBase4D const | unitZ () |
Returns a unit Z vector. | |
static VBase4D const | zero () |
Returns a zero-length vector. |
This is the base class for all three-component vectors and points.
VBase4D | ( | ) |
VBase4D | ( | double | fill_value | ) |
VBase4D | ( | double | x, |
double | y, | ||
double | z, | ||
double | w | ||
) |
addToCell | ( | int | i, |
double | value | ||
) |
addW | ( | double | value | ) |
addX | ( | double | value | ) |
addY | ( | double | value | ) |
addZ | ( | double | value | ) |
bool almostEqual | ( | VBase4D const | other | ) |
Returns true if two vectors are memberwise equal within a default tolerance based on the numeric type.
bool almostEqual | ( | VBase4D const | other, |
double | threshold | ||
) |
Returns true if two vectors are memberwise equal within a specified tolerance.
This flavor of compare_to uses a default threshold value based on the numeric type.
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).
double dot | ( | VBase4D const | other | ) |
fill | ( | double | fill_value | ) |
Sets each element of the vector to the indicated fill_value.
This is particularly useful for initializing to zero.
PyObject getattr | ( | string | attr_name | ) |
double getCell | ( | int | i | ) |
static TypeHandle getClassType | ( | ) | [static] |
Reimplemented in Vec4D, Point4D, QuatD, LRotationd, and LOrientationd.
getData | ( | ) |
Returns the address of the first of the four data elements in the vector.
The remaining elements occupy the next positions consecutively in memory.
unsigned int getHash | ( | ) |
Returns a suitable hash for phash_map.
unsigned int getHash | ( | double | threshold | ) |
Returns a suitable hash for phash_map.
int getNumComponents | ( | ) |
Returns the number of elements in the vector, four.
double getW | ( | ) |
double getX | ( | ) |
double getY | ( | ) |
double getZ | ( | ) |
bool isNan | ( | ) |
Returns true if any component of the vector is not-a-number, false otherwise.
double length | ( | ) |
Returns the length of the vector, by the Pythagorean theorem.
double lengthSquared | ( | ) |
Returns the square of the vector's length, cheap and easy.
bool normalize | ( | ) |
Normalizes the vector in place.
Returns true if the vector was normalized, false if it was a zero-length vector.
Reimplemented in QuatD.
operator new | ( | unsigned int | size | ) |
bool operator!= | ( | VBase4D const | other | ) |
VBase4D operator* | ( | double | scalar | ) |
Reimplemented in Vec4D, Point4D, QuatD, and LRotationd.
VBase4D operator*= | ( | double | scalar | ) |
VBase4D operator/ | ( | double | scalar | ) |
Reimplemented in Vec4D, Point4D, QuatD, and LRotationd.
VBase4D operator/= | ( | double | scalar | ) |
bool operator< | ( | VBase4D const | other | ) |
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().
bool operator== | ( | VBase4D const | other | ) |
double operator[] | ( | int | i | ) |
operator[] | ( | int | i | ) |
PyObject reduce | ( | PyObject | self | ) |
This special Python method is implement to provide support for the pickle module.
set | ( | double | x, |
double | y, | ||
double | z, | ||
double | w | ||
) |
int setattr | ( | PyObject | self, |
string | attr_name, | ||
PyObject | assign | ||
) |
setCell | ( | int | i, |
double | value | ||
) |
setitem | ( | int | i, |
double | v | ||
) |
setW | ( | double | value | ) |
setX | ( | double | value | ) |
setY | ( | double | value | ) |
setZ | ( | double | value | ) |
static int size | ( | ) | [static] |
Returns 4: the number of components of a LVecBase4.
static VBase4D const unitW | ( | ) | [static] |
static VBase4D const unitX | ( | ) | [static] |
static VBase4D const unitY | ( | ) | [static] |
static VBase4D const unitZ | ( | ) | [static] |