Panda3D
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This is a four-component vector distance. More...
#include "lvector4.h"
Public Types | |
typedef const float * | const_iterator |
typedef const float * | iterator |
Public Member Functions | |
LVector4f (const LVecBase4f ©) | |
LVector4f (float fill_value) | |
LVector4f (float x, float y, float z, float w) | |
size_t | add_hash (size_t hash) const |
Adds the vector into the running hash. | |
size_t | add_hash (size_t hash, float threshold) const |
Adds the vector into the running hash. | |
void | add_to_cell (int i, float value) |
void | add_w (float value) |
void | add_x (float value) |
void | add_y (float value) |
void | add_z (float value) |
bool | almost_equal (const LVecBase4f &other, float threshold) const |
Returns true if two vectors are memberwise equal within a specified tolerance. | |
bool | almost_equal (const LVecBase4f &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 LVecBase4f &other, float threshold) const |
Sorts vectors lexicographically, componentwise. | |
int | compare_to (const LVecBase4f &other) const |
This flavor of compare_to uses a default threshold value based on the numeric type. | |
float | dot (const LVecBase4f &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 (float fill_value) |
Sets each element of the vector to the indicated fill_value. | |
LVecBase4f | fmax (const LVecBase4f &other) |
LVecBase4f | fmin (const LVecBase4f &other) |
void | generate_hash (ChecksumHashGenerator &hashgen, float threshold) const |
Adds the vector to the indicated hash generator. | |
void | generate_hash (ChecksumHashGenerator &hashgen) const |
Adds the vector to the indicated hash generator. | |
float | get_cell (int i) const |
const float * | 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 (float threshold) const |
Returns a suitable hash for phash_map. | |
int | get_num_components () const |
Returns the number of elements in the vector, four. | |
float | get_w () const |
float | get_x () const |
float | get_y () const |
float | get_z () const |
bool | is_nan () const |
Returns true if any component of the vector is not-a-number, false otherwise. | |
float | length () const |
Returns the length of the vector, by the Pythagorean theorem. | |
float | length_squared () const |
Returns the square of the vector's length, cheap and easy. | |
bool | normalize () |
Normalizes the vector in place. | |
bool | operator!= (const LVecBase4f &other) const |
LVector4f | operator* (float scalar) const |
void | operator*= (float scalar) |
LVecBase4f | operator+ (const LVecBase4f &other) const |
LVector4f | operator+ (const LVector4f &other) const |
void | operator+= (const LVecBase4f &other) |
LVecBase4f | operator- (const LVecBase4f &other) const |
LVector4f | operator- (const LVector4f &other) const |
LVector4f | operator- () const |
void | operator-= (const LVecBase4f &other) |
LVector4f | operator/ (float scalar) const |
void | operator/= (float scalar) |
bool | operator< (const LVecBase4f &other) const |
This performs a lexicographical comparison. | |
LVector4f & | operator= (float fill_value) |
LVector4f & | operator= (const LVecBase4f ©) |
bool | operator== (const LVecBase4f &other) const |
float & | operator[] (int i) |
float | operator[] (int i) const |
void | output (ostream &out) const |
LVector4f | project (const LVecBase4f &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 (float x, float y, float z, float w) |
void | set_cell (int i, float value) |
void | set_w (float value) |
void | set_x (float value) |
void | set_y (float value) |
void | set_z (float 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 LVector4f & | unit_w () |
Returns a unit W vector. | |
static const LVector4f & | unit_x () |
Returns a unit X vector. | |
static const LVector4f & | unit_y () |
Returns a unit Y vector. | |
static const LVector4f & | unit_z () |
Returns a unit Z vector. | |
static const LVector4f & | zero () |
Returns a zero-length vector. | |
Public Attributes | |
union { | |
float data [4] | |
struct { | |
float _0 | |
float _1 | |
float _2 | |
float _3 | |
} v | |
} | _v |
This is a four-component vector distance.
Definition at line 85 of file lvector4.h.
size_t LVecBase4f::add_hash | ( | size_t | hash | ) | const [inline, inherited] |
Adds the vector into the running hash.
Definition at line 883 of file lvecBase4.h.
size_t LVecBase4f::add_hash | ( | size_t | hash, |
float | threshold | ||
) | const [inline, inherited] |
Adds the vector into the running hash.
Definition at line 894 of file lvecBase4.h.
bool LVecBase4f::almost_equal | ( | const LVecBase4f & | other, |
float | threshold | ||
) | const [inline, inherited] |
Returns true if two vectors are memberwise equal within a specified tolerance.
Definition at line 1055 of file lvecBase4.h.
Referenced by EggVertexPool::check_overall_color(), ColorScaleAttrib::fillin(), and EggLoader::make_polyset().
bool LVecBase4f::almost_equal | ( | const LVecBase4f & | other | ) | const [inline, inherited] |
Returns true if two vectors are memberwise equal within a default tolerance based on the numeric type.
Definition at line 1070 of file lvecBase4.h.
LVecBase4f::iterator LVecBase4f::begin | ( | ) | [inline, inherited] |
Returns an iterator that may be used to traverse the elements of the matrix, STL-style.
Definition at line 642 of file lvecBase4.h.
LVecBase4f::const_iterator LVecBase4f::begin | ( | ) | const [inline, inherited] |
Returns an iterator that may be used to traverse the elements of the matrix, STL-style.
Definition at line 664 of file lvecBase4.h.
int LVecBase4f::compare_to | ( | const LVecBase4f & | other, |
float | threshold | ||
) | const [inline, inherited] |
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 838 of file lvecBase4.h.
int LVecBase4f::compare_to | ( | const LVecBase4f & | other | ) | const [inline, inherited] |
This flavor of compare_to uses a default threshold value based on the numeric type.
Definition at line 823 of file lvecBase4.h.
Referenced by Material::compare_to(), EggAttributes::compare_to(), ScissorEffect::compare_to_impl(), ScissorAttrib::compare_to_impl(), ColorScaleAttrib::compare_to_impl(), ColorBlendAttrib::compare_to_impl(), ColorAttrib::compare_to_impl(), StandardMunger::compare_to_impl(), StandardMunger::geom_compare_to_impl(), TransformState::sorts_less(), and EggMaterial::sorts_less_than().
LVecBase4f::iterator LVecBase4f::end | ( | ) | [inline, inherited] |
Returns an iterator that may be used to traverse the elements of the matrix, STL-style.
Definition at line 653 of file lvecBase4.h.
LVecBase4f::const_iterator LVecBase4f::end | ( | ) | const [inline, inherited] |
Returns an iterator that may be used to traverse the elements of the matrix, STL-style.
Definition at line 675 of file lvecBase4.h.
void LVecBase4f::fill | ( | float | fill_value | ) | [inline, inherited] |
Sets each element of the vector to the indicated fill_value.
This is particularly useful for initializing to zero.
Definition at line 687 of file lvecBase4.h.
void LVecBase4f::generate_hash | ( | ChecksumHashGenerator & | hashgen | ) | const [inline, inherited] |
Adds the vector to the indicated hash generator.
Definition at line 1110 of file lvecBase4.h.
void LVecBase4f::generate_hash | ( | ChecksumHashGenerator & | hashgen, |
float | threshold | ||
) | const [inline, inherited] |
Adds the vector to the indicated hash generator.
Definition at line 1121 of file lvecBase4.h.
const float * LVecBase4f::get_data | ( | ) | const [inline, inherited] |
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 621 of file lvecBase4.h.
Referenced by DXGraphicsStateGuardian9::bind_light(), DXGraphicsStateGuardian8::bind_light(), GraphicsStateGuardian::fetch_specified_part(), DXGraphicsStateGuardian9::get_light_color(), and DXGraphicsStateGuardian8::get_light_color().
size_t LVecBase4f::get_hash | ( | ) | const [inline, inherited] |
Returns a suitable hash for phash_map.
Definition at line 861 of file lvecBase4.h.
size_t LVecBase4f::get_hash | ( | float | threshold | ) | const [inline, inherited] |
Returns a suitable hash for phash_map.
Definition at line 872 of file lvecBase4.h.
int LVecBase4f::get_num_components | ( | ) | const [inline, inherited] |
Returns the number of elements in the vector, four.
Definition at line 631 of file lvecBase4.h.
bool LVecBase4f::is_nan | ( | ) | const [inline, inherited] |
Returns true if any component of the vector is not-a-number, false otherwise.
Definition at line 455 of file lvecBase4.h.
Referenced by PhysicsObject::add_local_torque(), PhysicsObject::add_torque(), PhysicsObject::reset_orientation(), CLerpNodePathInterval::set_end_color(), CLerpNodePathInterval::set_end_color_scale(), CLerpNodePathInterval::set_end_hpr(), CLerpNodePathInterval::set_end_quat(), PhysicsObject::set_rotation(), CLerpNodePathInterval::set_start_color(), CLerpNodePathInterval::set_start_color_scale(), and CLerpNodePathInterval::set_start_quat().
float LVecBase4f::length | ( | ) | const [inline, inherited] |
Returns the length of the vector, by the Pythagorean theorem.
Definition at line 716 of file lvecBase4.h.
float LVecBase4f::length_squared | ( | ) | const [inline, inherited] |
Returns the square of the vector's length, cheap and easy.
Definition at line 727 of file lvecBase4.h.
bool LVecBase4f::normalize | ( | ) | [inline, inherited] |
Normalizes the vector in place.
Returns true if the vector was normalized, false if it was a zero-length vector.
Reimplemented in LQuaternionf.
Definition at line 739 of file lvecBase4.h.
bool LVecBase4f::operator< | ( | const LVecBase4f & | other | ) | const [inline, inherited] |
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 787 of file lvecBase4.h.
LVector4f LVector4f::project | ( | const LVecBase4f & | 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 from LVecBase4f.
Definition at line 338 of file lvector4.h.
void LVecBase4f::read_datagram | ( | DatagramIterator & | source | ) | [inline, inherited] |
Function to read itself from a datagramIterator.
Definition at line 1155 of file lvecBase4.h.
Referenced by TransformState::fillin(), ScissorEffect::fillin(), ScissorAttrib::fillin(), Fog::fillin(), ColorScaleAttrib::fillin(), ColorBlendAttrib::fillin(), ColorAttrib::fillin(), NurbsCurve::fillin(), CubicCurveseg::fillin(), TextureStage::fillin(), Texture::fillin(), and Material::fillin().
int LVecBase4f::size | ( | ) | [inline, static, inherited] |
Returns 4: the number of components of a LVecBase4.
Definition at line 444 of file lvecBase4.h.
const LVector4f & LVector4f::unit_w | ( | ) | [inline, static] |
const LVector4f & LVector4f::unit_x | ( | ) | [inline, static] |
const LVector4f & LVector4f::unit_y | ( | ) | [inline, static] |
const LVector4f & LVector4f::unit_z | ( | ) | [inline, static] |
void LVecBase4f::write_datagram | ( | Datagram & | destination | ) | const [inline, inherited] |
Function to write itself into a datagram.
Definition at line 1135 of file lvecBase4.h.
Referenced by TransformState::write_datagram(), ScissorEffect::write_datagram(), ScissorAttrib::write_datagram(), Fog::write_datagram(), ColorScaleAttrib::write_datagram(), ColorBlendAttrib::write_datagram(), ColorAttrib::write_datagram(), NurbsCurve::write_datagram(), CubicCurveseg::write_datagram(), TextureStage::write_datagram(), Texture::write_datagram(), and Material::write_datagram().
const LVector4f & LVector4f::zero | ( | ) | [inline, static] |
Returns a zero-length vector.
Reimplemented from LVecBase4f.
Definition at line 215 of file lvector4.h.