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Public Types | Public Member Functions | Static Public Member Functions | Public Attributes

LVector4d Class Reference

This is a four-component vector distance. More...

#include "lvector4.h"

Inheritance diagram for LVector4d:
LVecBase4d

List of all members.

Public Types

typedef const double * const_iterator
typedef const double * iterator

Public Member Functions

 LVector4d (const LVecBase4d &copy)
 LVector4d (double fill_value)
 LVector4d (double x, double y, double z, double w)
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.
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 LVecBase4d &other, double threshold) const
 Sorts vectors lexicographically, componentwise.
int compare_to (const LVecBase4d &other) const
 This flavor of compare_to uses a default threshold value based on the numeric type.
double dot (const LVecBase4d &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 (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, double threshold) const
 Adds the vector to the indicated hash generator.
void generate_hash (ChecksumHashGenerator &hashgen) 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.
bool normalize ()
 Normalizes the vector in place.
bool operator!= (const LVecBase4d &other) const
LVector4d operator* (double scalar) const
void operator*= (double scalar)
LVecBase4d operator+ (const LVecBase4d &other) const
LVector4d operator+ (const LVector4d &other) const
void operator+= (const LVecBase4d &other)
LVecBase4d operator- (const LVecBase4d &other) const
LVector4d operator- (const LVector4d &other) const
LVector4d operator- () const
void operator-= (const LVecBase4d &other)
LVector4d operator/ (double scalar) const
void operator/= (double scalar)
bool operator< (const LVecBase4d &other) const
 This performs a lexicographical comparison.
LVector4doperator= (double fill_value)
LVector4doperator= (const LVecBase4d &copy)
bool operator== (const LVecBase4d &other) const
double & operator[] (int i)
double operator[] (int i) const
void output (ostream &out) const
LVector4d project (const LVecBase4d &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 (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
 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 LVector4dunit_w ()
 Returns a unit W vector.
static const LVector4dunit_x ()
 Returns a unit X vector.
static const LVector4dunit_y ()
 Returns a unit Y vector.
static const LVector4dunit_z ()
 Returns a unit Z vector.
static const LVector4dzero ()
 Returns a zero-length vector.

Public Attributes

union {
   double   data [4]
   struct {
      double   _0
      double   _1
      double   _2
      double   _3
   }   v
_v

Detailed Description

This is a four-component vector distance.

Definition at line 417 of file lvector4.h.


Member Function Documentation

size_t LVecBase4d::add_hash ( size_t  hash) const [inline, inherited]

Adds the vector into the running hash.

Definition at line 2022 of file lvecBase4.h.

size_t LVecBase4d::add_hash ( size_t  hash,
double  threshold 
) const [inline, inherited]

Adds the vector into the running hash.

Definition at line 2033 of file lvecBase4.h.

bool LVecBase4d::almost_equal ( const LVecBase4d other,
double  threshold 
) const [inline, inherited]

Returns true if two vectors are memberwise equal within a specified tolerance.

Definition at line 2194 of file lvecBase4.h.

bool LVecBase4d::almost_equal ( const LVecBase4d other) const [inline, inherited]

Returns true if two vectors are memberwise equal within a default tolerance based on the numeric type.

Definition at line 2209 of file lvecBase4.h.

LVecBase4d::iterator LVecBase4d::begin ( ) [inline, inherited]

Returns an iterator that may be used to traverse the elements of the matrix, STL-style.

Definition at line 1781 of file lvecBase4.h.

LVecBase4d::const_iterator LVecBase4d::begin ( ) const [inline, inherited]

Returns an iterator that may be used to traverse the elements of the matrix, STL-style.

Definition at line 1803 of file lvecBase4.h.

int LVecBase4d::compare_to ( const LVecBase4d other,
double  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 1977 of file lvecBase4.h.

int LVecBase4d::compare_to ( const LVecBase4d other) const [inline, inherited]

This flavor of compare_to uses a default threshold value based on the numeric type.

Definition at line 1962 of file lvecBase4.h.

Referenced by EggVertex::compare_to().

LVecBase4d::iterator LVecBase4d::end ( ) [inline, inherited]

Returns an iterator that may be used to traverse the elements of the matrix, STL-style.

Definition at line 1792 of file lvecBase4.h.

LVecBase4d::const_iterator LVecBase4d::end ( ) const [inline, inherited]

Returns an iterator that may be used to traverse the elements of the matrix, STL-style.

Definition at line 1814 of file lvecBase4.h.

void LVecBase4d::fill ( double  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 1826 of file lvecBase4.h.

void LVecBase4d::generate_hash ( ChecksumHashGenerator hashgen) const [inline, inherited]

Adds the vector to the indicated hash generator.

Definition at line 2249 of file lvecBase4.h.

void LVecBase4d::generate_hash ( ChecksumHashGenerator hashgen,
double  threshold 
) const [inline, inherited]

Adds the vector to the indicated hash generator.

Definition at line 2260 of file lvecBase4.h.

const double * LVecBase4d::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 1760 of file lvecBase4.h.

Referenced by XFileDataObject::set().

size_t LVecBase4d::get_hash ( ) const [inline, inherited]

Returns a suitable hash for phash_map.

Definition at line 2000 of file lvecBase4.h.

size_t LVecBase4d::get_hash ( double  threshold) const [inline, inherited]

Returns a suitable hash for phash_map.

Definition at line 2011 of file lvecBase4.h.

int LVecBase4d::get_num_components ( ) const [inline, inherited]

Returns the number of elements in the vector, four.

Definition at line 1770 of file lvecBase4.h.

bool LVecBase4d::is_nan ( ) const [inline, inherited]

Returns true if any component of the vector is not-a-number, false otherwise.

Definition at line 1594 of file lvecBase4.h.

double LVecBase4d::length ( ) const [inline, inherited]

Returns the length of the vector, by the Pythagorean theorem.

Definition at line 1855 of file lvecBase4.h.

double LVecBase4d::length_squared ( ) const [inline, inherited]

Returns the square of the vector's length, cheap and easy.

Definition at line 1866 of file lvecBase4.h.

bool LVecBase4d::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 LQuaterniond.

Definition at line 1878 of file lvecBase4.h.

bool LVecBase4d::operator< ( const LVecBase4d 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 1926 of file lvecBase4.h.

LVector4d LVector4d::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 from LVecBase4d.

Definition at line 670 of file lvector4.h.

void LVecBase4d::read_datagram ( DatagramIterator source) [inline, inherited]

Function to read itself from a datagramIterator.

Definition at line 2294 of file lvecBase4.h.

int LVecBase4d::size ( ) [inline, static, inherited]

Returns 4: the number of components of a LVecBase4.

Definition at line 1583 of file lvecBase4.h.

const LVector4d & LVector4d::unit_w ( ) [inline, static]

Returns a unit W vector.

Reimplemented from LVecBase4d.

Definition at line 587 of file lvector4.h.

const LVector4d & LVector4d::unit_x ( ) [inline, static]

Returns a unit X vector.

Reimplemented from LVecBase4d.

Definition at line 557 of file lvector4.h.

const LVector4d & LVector4d::unit_y ( ) [inline, static]

Returns a unit Y vector.

Reimplemented from LVecBase4d.

Definition at line 567 of file lvector4.h.

const LVector4d & LVector4d::unit_z ( ) [inline, static]

Returns a unit Z vector.

Reimplemented from LVecBase4d.

Definition at line 577 of file lvector4.h.

void LVecBase4d::write_datagram ( Datagram destination) const [inline, inherited]

Function to write itself into a datagram.

Definition at line 2274 of file lvecBase4.h.

const LVector4d & LVector4d::zero ( ) [inline, static]

Returns a zero-length vector.

Reimplemented from LVecBase4d.

Definition at line 547 of file lvector4.h.


The documentation for this class was generated from the following files:
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