Panda3D
Public Member Functions | Static Public Member Functions | List of all members
LPoint2d Class Reference

This is a two-component point in space. More...

#include "lpoint2.h"

Inheritance diagram for LPoint2d:
LVecBase2d

Public Member Functions

 LPoint2d (const LVecBase2d &copy)
 
 LPoint2d (double fill_value)
 
 LPoint2d (double x, double y)
 
LPoint2d normalized () const
 Normalizes the vector and returns the normalized vector as a copy. More...
 
LPoint2d operator* (double scalar) const
 
LVecBase2d operator+ (const LVecBase2d &other) const
 
LPoint2d operator+ (const LVector2d &other) const
 
LPoint2d operator- () const
 
LVecBase2d operator- (const LVecBase2d &other) const
 
LVector2d operator- (const LPoint2d &other) const
 
LPoint2d operator- (const LVector2d &other) const
 
LPoint2d operator/ (double scalar) const
 
LPoint2doperator= (const LVecBase2d &copy)
 
LPoint2doperator= (double fill_value)
 
LPoint2d project (const LVecBase2d &onto) const
 Returns a new vector representing the projection of this vector onto another one. More...
 
- Public Member Functions inherited from LVecBase2d
 LVecBase2d (const LVecBase2d &copy)
 
 LVecBase2d (double fill_value)
 
 LVecBase2d (double x, double y)
 
 LVecBase2d (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, double threshold) const
 Adds the vector into the running hash. More...
 
void add_to_cell (int i, double value)
 
void add_x (double value)
 
void add_y (double value)
 
bool almost_equal (const LVecBase2d &other, double threshold) const
 Returns true if two vectors are memberwise equal within a specified tolerance. More...
 
bool almost_equal (const LVecBase2d &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 LVecBase2d &other) const
 This flavor of compare_to uses a default threshold value based on the numeric type. More...
 
int compare_to (const LVecBase2d &other, double threshold) const
 Sorts vectors lexicographically, componentwise. More...
 
void componentwise_mult (const LVecBase2d &other)
 
double dot (const LVecBase2d &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 (double fill_value)
 Sets each element of the vector to the indicated fill_value. More...
 
LVecBase2d fmax (const LVecBase2d &other) const
 
LVecBase2d fmin (const LVecBase2d &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 two 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, two. More...
 
double get_x () const
 
double get_y () 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...
 
LVecBase2d normalized () const
 Normalizes the vector and returns the normalized vector as a copy. More...
 
bool operator!= (const LVecBase2d &other) const
 
LVecBase2d operator* (double scalar) const
 
void operator*= (double scalar)
 
LVecBase2d operator+ (const LVecBase2d &other) const
 
void operator+= (const LVecBase2d &other)
 
LVecBase2d operator- () const
 
LVecBase2d operator- (const LVecBase2d &other) const
 
void operator-= (const LVecBase2d &other)
 
LVecBase2d operator/ (double scalar) const
 
void operator/= (double scalar)
 
bool operator< (const LVecBase2d &other) const
 This performs a lexicographical comparison. More...
 
LVecBase2doperator= (const LVecBase2d &copy)
 
LVecBase2doperator= (double fill_value)
 
bool operator== (const LVecBase2d &other) const
 
double operator[] (int i) const
 
double & operator[] (int i)
 
void output (ostream &out) const
 
LVecBase2d project (const LVecBase2d &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)
 
void set_cell (int i, double value)
 
void set_x (double value)
 
void set_y (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 const LPoint2dunit_x ()
 Returns a unit X point. More...
 
static const LPoint2dunit_y ()
 Returns a unit Y point. More...
 
static const LPoint2dzero ()
 Returns a zero-length point. More...
 
- Static Public Member Functions inherited from LVecBase2d
static TypeHandle get_class_type ()
 
static void init_type ()
 
static int size ()
 Returns 2: the number of components of a LVecBase2. More...
 
static const LVecBase2dunit_x ()
 Returns a unit X vector. More...
 
static const LVecBase2dunit_y ()
 Returns a unit Y vector. More...
 
static const LVecBase2dzero ()
 Returns a zero-length vector. More...
 

Additional Inherited Members

- Public Types inherited from LVecBase2d
enum  { num_components = 2, is_int = 0 }
 
typedef const double * const_iterator
 
typedef LSimpleMatrix< double, 1, 2 > EVector2
 
typedef const double * iterator
 
typedef double numeric_type
 
- Public Attributes inherited from LVecBase2d
EVector2 _v
 

Detailed Description

This is a two-component point in space.

Definition at line 424 of file lpoint2.h.

Member Function Documentation

◆ normalized()

LPoint2d LPoint2d::normalized ( ) const
inline

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 670 of file lpoint2.h.

◆ project()

LPoint2d LPoint2d::project ( const LVecBase2d 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 682 of file lpoint2.h.

◆ unit_x()

const LPoint2d & LPoint2d::unit_x ( )
inlinestatic

Returns a unit X point.

Definition at line 567 of file lpoint2.h.

◆ unit_y()

const LPoint2d & LPoint2d::unit_y ( )
inlinestatic

Returns a unit Y point.

Definition at line 577 of file lpoint2.h.

◆ zero()

const LPoint2d & LPoint2d::zero ( )
inlinestatic

Returns a zero-length point.

Definition at line 557 of file lpoint2.h.

Referenced by EggVertexUV::get_uv(), EggVertex::get_uv(), Triangulator::get_vertex(), and MayaShaderColorDef::project_uv().


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