Panda3D
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This is the base class for all three-component vectors and points. More...
#include "lvecBase4.h"
Public Types | |
enum | { num_components = 4, is_int = 0 } |
typedef const double * | const_iterator |
typedef LSimpleMatrix< double, 1, 4 > | EVector4 |
typedef const double * | iterator |
typedef double | numeric_type |
Public Member Functions | |
LVecBase4d (const LVecBase4d ©) | |
LVecBase4d (const UnalignedLVecBase4d ©) | |
LVecBase4d (double fill_value) | |
LVecBase4d (double x, double y, double z, double w) | |
LVecBase4d (const LVecBase3d ©, double w) | |
LVecBase4d (const LPoint3d &point) | |
Constructs an LVecBase4 from an LPoint3. More... | |
LVecBase4d (const LVector3d &vector) | |
Constructs an LVecBase4 from an LVector3. More... | |
LVecBase4d (const EVector4 &v) | |
size_t | add_hash (size_t hash) const |
Adds the vector into the running hash. More... | |
size_t | add_hash (size_t hash, double threshold) const |
Adds the vector into the running hash. More... | |
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. More... | |
bool | almost_equal (const LVecBase4d &other) const |
Returns true if two vectors are memberwise equal within a default tolerance based on the numeric type. More... | |
iterator | begin () |
Returns an iterator that may be used to traverse the elements of the matrix, STL-style. More... | |
const_iterator | begin () const |
Returns an iterator that may be used to traverse the elements of the matrix, STL-style. More... | |
int | compare_to (const LVecBase4d &other) const |
This flavor of compare_to uses a default threshold value based on the numeric type. More... | |
int | compare_to (const LVecBase4d &other, double threshold) const |
Sorts vectors lexicographically, componentwise. More... | |
void | componentwise_mult (const LVecBase4d &other) |
double | dot (const LVecBase4d &other) const |
iterator | end () |
Returns an iterator that may be used to traverse the elements of the matrix, STL-style. More... | |
const_iterator | end () const |
Returns an iterator that may be used to traverse the elements of the matrix, STL-style. More... | |
void | extract_data (float *) |
void | fill (double fill_value) |
Sets each element of the vector to the indicated fill_value. More... | |
LVecBase4d | fmax (const LVecBase4d &other) const |
LVecBase4d | fmin (const LVecBase4d &other) const |
void | generate_hash (ChecksumHashGenerator &hashgen) const |
Adds the vector to the indicated hash generator. More... | |
void | generate_hash (ChecksumHashGenerator &hashgen, double threshold) const |
Adds the vector to the indicated hash generator. More... | |
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. More... | |
size_t | get_hash () const |
Returns a suitable hash for phash_map. More... | |
size_t | get_hash (double threshold) const |
Returns a suitable hash for phash_map. More... | |
int | get_num_components () const |
Returns the number of elements in the vector, four. More... | |
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. More... | |
double | length () const |
Returns the length of the vector, by the Pythagorean theorem. More... | |
double | length_squared () const |
Returns the square of the vector's length, cheap and easy. More... | |
bool | normalize () |
Normalizes the vector in place. More... | |
LVecBase4d | normalized () const |
Normalizes the vector and returns the normalized vector as a copy. More... | |
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. More... | |
LVecBase4d & | operator= (const LVecBase4d ©) |
LVecBase4d & | operator= (const UnalignedLVecBase4d ©) |
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. More... | |
void | read_datagram (DatagramIterator &source) |
Reads the vector from the Datagram using get_stdfloat(). More... | |
void | read_datagram_fixed (DatagramIterator &source) |
Reads the vector from the Datagram using get_float32() or get_float64(). More... | |
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(). More... | |
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(). More... | |
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. More... | |
static const LVecBase4d & | unit_w () |
Returns a unit W vector. More... | |
static const LVecBase4d & | unit_x () |
Returns a unit X vector. More... | |
static const LVecBase4d & | unit_y () |
Returns a unit Y vector. More... | |
static const LVecBase4d & | unit_z () |
Returns a unit Z vector. More... | |
static const LVecBase4d & | zero () |
Returns a zero-length vector. More... | |
Public Attributes | |
EVector4 | _v |
This is the base class for all three-component vectors and points.
Definition at line 1677 of file lvecBase4.h.
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Constructs an LVecBase4 from an LPoint3.
The w coordinate is set to 1.0.
Definition at line 2029 of file lvecBase4.h.
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Constructs an LVecBase4 from an LVector3.
The w coordinate is set to 0.0.
Definition at line 2040 of file lvecBase4.h.
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Adds the vector into the running hash.
Definition at line 2592 of file lvecBase4.h.
References integer_hash< Key, Compare >::add_hash().
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Adds the vector into the running hash.
Definition at line 2668 of file lvecBase4.h.
References floating_point_hash< Key >::add_hash().
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Returns true if two vectors are memberwise equal within a specified tolerance.
Definition at line 2905 of file lvecBase4.h.
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Returns true if two vectors are memberwise equal within a default tolerance based on the numeric type.
Definition at line 2920 of file lvecBase4.h.
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Returns an iterator that may be used to traverse the elements of the matrix, STL-style.
Definition at line 2333 of file lvecBase4.h.
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Returns an iterator that may be used to traverse the elements of the matrix, STL-style.
Definition at line 2355 of file lvecBase4.h.
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This flavor of compare_to uses a default threshold value based on the numeric type.
Definition at line 2554 of file lvecBase4.h.
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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 2634 of file lvecBase4.h.
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Returns an iterator that may be used to traverse the elements of the matrix, STL-style.
Definition at line 2344 of file lvecBase4.h.
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Returns an iterator that may be used to traverse the elements of the matrix, STL-style.
Definition at line 2366 of file lvecBase4.h.
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Sets each element of the vector to the indicated fill_value.
This is particularly useful for initializing to zero.
Definition at line 2378 of file lvecBase4.h.
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Adds the vector to the indicated hash generator.
Definition at line 2611 of file lvecBase4.h.
References ChecksumHashGenerator::add_int().
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Adds the vector to the indicated hash generator.
Definition at line 2684 of file lvecBase4.h.
References ChecksumHashGenerator::add_fp().
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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 2312 of file lvecBase4.h.
Referenced by Shader::get_language(), and XFileDataObject::set().
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Returns a suitable hash for phash_map.
Definition at line 2581 of file lvecBase4.h.
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Returns a suitable hash for phash_map.
Definition at line 2657 of file lvecBase4.h.
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Returns the number of elements in the vector, four.
Definition at line 2322 of file lvecBase4.h.
Referenced by Shader::get_language().
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Returns true if any component of the vector is not-a-number, false otherwise.
Definition at line 2142 of file lvecBase4.h.
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Returns the length of the vector, by the Pythagorean theorem.
Definition at line 2445 of file lvecBase4.h.
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Returns the square of the vector's length, cheap and easy.
Definition at line 2428 of file lvecBase4.h.
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Normalizes the vector in place.
Returns true if the vector was normalized, false if it was a zero-length vector.
Definition at line 2462 of file lvecBase4.h.
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Normalizes the vector and returns the normalized vector as a copy.
If the vector was a zero-length vector, a zero length vector will be returned.
Definition at line 2483 of file lvecBase4.h.
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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 2514 of file lvecBase4.h.
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Returns a new vector representing the projection of this vector onto another one.
The resulting vector will be a scalar multiple of onto.
Definition at line 2499 of file lvecBase4.h.
References LVecBase4f::length_squared().
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Reads the vector from the Datagram using get_stdfloat().
Definition at line 3024 of file lvecBase4.h.
References DatagramIterator::get_int32(), and DatagramIterator::get_stdfloat().
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Reads the vector from the Datagram using get_float32() or get_float64().
Definition at line 2976 of file lvecBase4.h.
References DatagramIterator::get_float32(), DatagramIterator::get_float64(), and DatagramIterator::get_int32().
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inlinestatic |
Returns 4: the number of components of a LVecBase4.
Definition at line 2131 of file lvecBase4.h.
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Returns a unit W vector.
Definition at line 2099 of file lvecBase4.h.
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inlinestatic |
Returns a unit X vector.
Definition at line 2069 of file lvecBase4.h.
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inlinestatic |
Returns a unit Y vector.
Definition at line 2079 of file lvecBase4.h.
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inlinestatic |
Returns a unit Z vector.
Definition at line 2089 of file lvecBase4.h.
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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 3004 of file lvecBase4.h.
References Datagram::add_int32(), and Datagram::add_stdfloat().
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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 2950 of file lvecBase4.h.
References Datagram::add_float32(), Datagram::add_float64(), and Datagram::add_int32().
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inlinestatic |
Returns a zero-length vector.
Definition at line 2059 of file lvecBase4.h.
Referenced by EggVertex::get_aux(), and GeomVertexReader::get_data4d().