Panda3D
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This is the base class for all three-component vectors and points. More...
Public Member Functions | |
VBase3 () | |
VBase3 (VBase3 const copy) | |
VBase3 (float x, float y, float z) | |
VBase3 (float fill_value) | |
unsigned int | addHash (unsigned int hash) |
Adds the vector into the running hash. | |
unsigned int | addHash (unsigned int hash, float threshold) |
Adds the vector into the running hash. | |
addToCell (int i, float value) | |
addX (float value) | |
addY (float value) | |
addZ (float value) | |
bool | almostEqual (VBase3 const other) |
Returns true if two vectors are memberwise equal within a default tolerance based on the numeric type. | |
bool | almostEqual (VBase3 const other, float threshold) |
Returns true if two vectors are memberwise equal within a specified tolerance. | |
int | compareTo (VBase3 const other) |
This flavor of compare_to uses a default threshold value based on the numeric type. | |
int | compareTo (VBase3 const other, float threshold) |
Sorts vectors lexicographically, componentwise. | |
VBase3 | cross (VBase3 const other) |
crossInto (VBase3 const other) | |
float | dot (VBase3 const other) |
fill (float fill_value) | |
Sets each element of the vector to the indicated fill_value. | |
VBase3 | fmax (VBase3 const other) |
VBase3 | fmin (VBase3 const other) |
PyObject | getattr (string attr_name) |
This is used to implement swizzle masks. | |
float | getCell (int i) |
getData () | |
Returns the address of the first of the three data elements in the vector. | |
unsigned int | getHash () |
Returns a suitable hash for phash_map. | |
unsigned int | getHash (float threshold) |
Returns a suitable hash for phash_map. | |
int | getNumComponents () |
Returns the number of elements in the vector, three. | |
VBase3 | getStandardizedHpr () |
Try to un-spin the hpr to a standard form. | |
float | getX () |
VBase2 | getXy () |
Returns a 2-component vector that shares just the first two components of this vector. | |
VBase2 | getXz () |
Returns a 2-component vector that shares just the first and last components of this vector. | |
float | getY () |
VBase2 | getYz () |
Returns a 2-component vector that shares just the last two components of this vector. | |
float | getZ () |
bool | isNan () |
Returns true if any component of the vector is not-a-number, false otherwise. | |
float | length () |
Returns the length of the vector, by the Pythagorean theorem. | |
float | 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!= (VBase3 const other) |
VBase3 | operator* (float scalar) |
VBase3 | operator*= (float scalar) |
VBase3 | operator+ (VBase3 const other) |
VBase3 | operator+= (VBase3 const other) |
VBase3 | operator- (VBase3 const other) |
VBase3 | operator- () |
VBase3 | operator-= (VBase3 const other) |
VBase3 | operator/ (float scalar) |
VBase3 | operator/= (float scalar) |
bool | operator< (VBase3 const other) |
This performs a lexicographical comparison. | |
VBase3 | operator= (float fill_value) |
VBase3 | operator= (VBase3 const copy) |
bool | operator== (VBase3 const other) |
float | operator[] (int i) |
operator[] (int i) | |
output (ostream out) | |
VBase3 | project (VBase3 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 (float x, float y, float z) | |
int | setattr (PyObject self, string attr_name, PyObject assign) |
This is used to implement write masks. | |
setCell (int i, float value) | |
setitem (int i, float v) | |
setX (float value) | |
setY (float value) | |
setZ (float value) | |
Static Public Member Functions | |
static TypeHandle | getClassType () |
static int | size () |
Returns 3: the number of components of a LVecBase3. | |
static VBase3 const | unitX () |
Returns a unit X vector. | |
static VBase3 const | unitY () |
Returns a unit Y vector. | |
static VBase3 const | unitZ () |
Returns a unit Z vector. | |
static VBase3 const | zero () |
Returns a zero-length vector. |
This is the base class for all three-component vectors and points.
VBase3 | ( | ) |
VBase3 | ( | float | fill_value | ) |
VBase3 | ( | float | x, |
float | y, | ||
float | z | ||
) |
addToCell | ( | int | i, |
float | value | ||
) |
addX | ( | float | value | ) |
addY | ( | float | value | ) |
addZ | ( | float | value | ) |
bool almostEqual | ( | VBase3 const | other, |
float | threshold | ||
) |
Returns true if two vectors are memberwise equal within a specified tolerance.
bool almostEqual | ( | VBase3 const | other | ) |
Returns true if two vectors are memberwise equal within a default tolerance based on the numeric type.
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).
crossInto | ( | VBase3 const | other | ) |
float dot | ( | VBase3 const | other | ) |
fill | ( | float | 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 | ) |
float getCell | ( | int | i | ) |
static TypeHandle getClassType | ( | ) | [static] |
getData | ( | ) |
Returns the address of the first of the three 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 | ( | float | threshold | ) |
Returns a suitable hash for phash_map.
int getNumComponents | ( | ) |
Returns the number of elements in the vector, three.
VBase3 getStandardizedHpr | ( | ) |
Try to un-spin the hpr to a standard form.
Like all standards, someone decides between many arbitrary possible standards. This function assumes that 0 and 360 are the same, as is 720 and -360. Also 180 and -180 are the same. Another example is -90 and 270. Each element will be in the range -180.0 to 179.99999. The original usage of this function is for human readable output.
It doesn't work so well for asserting that foo_hpr is roughly equal to bar_hpr. Try using LQuaternionf.is_same_direction() for that. See Also: get_standardized_rotation, LQuaternion.is_same_direction
float getX | ( | ) |
VBase2 getXy | ( | ) |
VBase2 getXz | ( | ) |
float getY | ( | ) |
VBase2 getYz | ( | ) |
float getZ | ( | ) |
bool isNan | ( | ) |
Returns true if any component of the vector is not-a-number, false otherwise.
float length | ( | ) |
Returns the length of the vector, by the Pythagorean theorem.
float 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.
operator new | ( | unsigned int | size | ) |
bool operator!= | ( | VBase3 const | other | ) |
VBase3 operator*= | ( | float | scalar | ) |
VBase3 operator/= | ( | float | scalar | ) |
bool operator< | ( | VBase3 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== | ( | VBase3 const | other | ) |
float operator[] | ( | int | i | ) |
operator[] | ( | int | i | ) |
output | ( | ostream | out | ) |
PyObject reduce | ( | PyObject | self | ) |
This special Python method is implement to provide support for the pickle module.
set | ( | float | x, |
float | y, | ||
float | z | ||
) |
int setattr | ( | PyObject | self, |
string | attr_name, | ||
PyObject | assign | ||
) |
setCell | ( | int | i, |
float | value | ||
) |
setitem | ( | int | i, |
float | v | ||
) |
setX | ( | float | value | ) |
setY | ( | float | value | ) |
setZ | ( | float | value | ) |
static int size | ( | ) | [static] |
Returns 3: the number of components of a LVecBase3.