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LVector2f Class Reference

This is a two-component vector offset. More...

#include "lvector2.h"

Inheritance diagram for LVector2f:
LVecBase2f

Public Member Functions

 LVector2f (const LVecBase2f &copy)
 
 LVector2f (float fill_value)
 
 LVector2f (float x, float y)
 
LVector2f operator* (float scalar) const
 
LVecBase2f operator+ (const LVecBase2f &other) const
 
LVector2f operator+ (const LVector2f &other) const
 
LVector2f operator- () const
 
LVecBase2f operator- (const LVecBase2f &other) const
 
LVector2f operator- (const LVector2f &other) const
 
LVector2f operator/ (float scalar) const
 
LVector2foperator= (const LVecBase2f &copy)
 
LVector2foperator= (float fill_value)
 
LVector2f project (const LVecBase2f &onto) const
 Returns a new vector representing the projection of this vector onto another one. More...
 
float signed_angle_deg (const LVector2f &other) const
 returns the signed angled between two vectors. More...
 
float signed_angle_rad (const LVector2f &other) const
 returns the signed angled between two vectors. More...
 
- Public Member Functions inherited from LVecBase2f
 LVecBase2f (const LVecBase2f &copy)
 
 LVecBase2f (float fill_value)
 
 LVecBase2f (float x, float y)
 
 LVecBase2f (const EVector2 &v)
 
size_t add_hash (size_t hash) const
 Adds the vector into the running hash. More...
 
size_t add_hash (size_t hash, float threshold) const
 Adds the vector into the running hash. More...
 
void add_to_cell (int i, float value)
 
void add_x (float value)
 
void add_y (float value)
 
bool almost_equal (const LVecBase2f &other, float threshold) const
 Returns true if two vectors are memberwise equal within a specified tolerance. More...
 
bool almost_equal (const LVecBase2f &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 LVecBase2f &other) const
 This flavor of compare_to uses a default threshold value based on the numeric type. More...
 
int compare_to (const LVecBase2f &other, float threshold) const
 Sorts vectors lexicographically, componentwise. More...
 
void componentwise_mult (const LVecBase2f &other)
 
float dot (const LVecBase2f &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 fill (float fill_value)
 Sets each element of the vector to the indicated fill_value. More...
 
LVecBase2f fmax (const LVecBase2f &other) const
 
LVecBase2f fmin (const LVecBase2f &other) const
 
void generate_hash (ChecksumHashGenerator &hashgen) const
 Adds the vector to the indicated hash generator. More...
 
void generate_hash (ChecksumHashGenerator &hashgen, float threshold) const
 Adds the vector to the indicated hash generator. More...
 
float get_cell (int i) const
 
const float * get_data () const
 Returns the address of the first of the two data elements in the vector. More...
 
size_t get_hash () const
 Returns a suitable hash for phash_map. More...
 
size_t get_hash (float threshold) const
 Returns a suitable hash for phash_map. More...
 
int get_num_components () const
 Returns the number of elements in the vector, two. More...
 
float get_x () const
 
float get_y () const
 
bool is_nan () const
 Returns true if any component of the vector is not-a-number, false otherwise. More...
 
float length () const
 Returns the length of the vector, by the Pythagorean theorem. More...
 
float length_squared () const
 Returns the square of the vector's length, cheap and easy. More...
 
bool normalize ()
 Normalizes the vector in place. More...
 
bool operator!= (const LVecBase2f &other) const
 
LVecBase2f operator* (float scalar) const
 
void operator*= (float scalar)
 
LVecBase2f operator+ (const LVecBase2f &other) const
 
void operator+= (const LVecBase2f &other)
 
LVecBase2f operator- () const
 
LVecBase2f operator- (const LVecBase2f &other) const
 
void operator-= (const LVecBase2f &other)
 
LVecBase2f operator/ (float scalar) const
 
void operator/= (float scalar)
 
bool operator< (const LVecBase2f &other) const
 This performs a lexicographical comparison. More...
 
LVecBase2foperator= (const LVecBase2f &copy)
 
LVecBase2foperator= (float fill_value)
 
bool operator== (const LVecBase2f &other) const
 
float operator[] (int i) const
 
float & operator[] (int i)
 
void output (ostream &out) const
 
LVecBase2f project (const LVecBase2f &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 (float x, float y)
 
void set_cell (int i, float value)
 
void set_x (float value)
 
void set_y (float 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 const LVector2funit_x ()
 Returns a unit X vector. More...
 
static const LVector2funit_y ()
 Returns a unit Y vector. More...
 
static const LVector2fzero ()
 Returns a zero-length vector. More...
 
- Static Public Member Functions inherited from LVecBase2f
static TypeHandle get_class_type ()
 
static void init_type ()
 
static int size ()
 Returns 2: the number of components of a LVecBase2. More...
 
static const LVecBase2funit_x ()
 Returns a unit X vector. More...
 
static const LVecBase2funit_y ()
 Returns a unit Y vector. More...
 
static const LVecBase2fzero ()
 Returns a zero-length vector. More...
 

Additional Inherited Members

- Public Types inherited from LVecBase2f
enum  { num_components = 2, is_int = 0 }
 
typedef const float * const_iterator
 
typedef LSimpleMatrix< float, 1, 2 > EVector2
 
typedef const float * iterator
 
typedef float numeric_type
 
- Public Attributes inherited from LVecBase2f
EVector2 _v
 

Detailed Description

This is a two-component vector offset.

Definition at line 91 of file lvector2.h.

Member Function Documentation

LVector2f LVector2f::project ( const LVecBase2f 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.

Definition at line 321 of file lvector2.h.

float LVector2f::signed_angle_deg ( const LVector2f other) const
inline

returns the signed angled between two vectors.

normalization is NOT necessary

Definition at line 343 of file lvector2.h.

float LVector2f::signed_angle_rad ( const LVector2f other) const
inline

returns the signed angled between two vectors.

normalization is NOT necessary

Definition at line 332 of file lvector2.h.

const LVector2f & LVector2f::unit_x ( )
inlinestatic

Returns a unit X vector.

Definition at line 228 of file lvector2.h.

const LVector2f & LVector2f::unit_y ( )
inlinestatic

Returns a unit Y vector.

Definition at line 238 of file lvector2.h.

const LVector2f & LVector2f::zero ( )
inlinestatic

Returns a zero-length vector.

Definition at line 218 of file lvector2.h.


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