Panda3D
Public Member Functions | Static Public Member Functions | List of all members
LPoint3d Class Reference

This is a three-component point in space (as opposed to a three-component vector, which represents a direction and a distance). More...

#include "lpoint3.h"

Inheritance diagram for LPoint3d:
LVecBase3d

Public Member Functions

 LPoint3d (const LVecBase3d &copy)
 
 LPoint3d (double fill_value)
 
 LPoint3d (double x, double y, double z)
 
 LPoint3d (const LVecBase2d &copy, double z)
 
LPoint3d cross (const LVecBase3d &other) const
 
LPoint2d get_xy () const
 Returns a 2-component vector that shares just the first two components of this vector. More...
 
LPoint2d get_xz () const
 Returns a 2-component vector that shares just the first and last components of this vector. More...
 
LPoint2d get_yz () const
 Returns a 2-component vector that shares just the last two components of this vector. More...
 
LPoint3d normalized () const
 Normalizes the vector and returns the normalized vector as a copy. More...
 
LPoint3d operator* (double scalar) const
 
LVecBase3d operator+ (const LVecBase3d &other) const
 
LPoint3d operator+ (const LVector3d &other) const
 
LPoint3d operator- () const
 
LVecBase3d operator- (const LVecBase3d &other) const
 
LVector3d operator- (const LPoint3d &other) const
 
LPoint3d operator- (const LVector3d &other) const
 
LPoint3d operator/ (double scalar) const
 
LPoint3doperator= (const LVecBase3d &copy)
 
LPoint3doperator= (double fill_value)
 
LPoint3d project (const LVecBase3d &onto) const
 Returns a new vector representing the projection of this vector onto another one. More...
 
- Public Member Functions inherited from LVecBase3d
 LVecBase3d (const LVecBase3d &copy)
 
 LVecBase3d (double fill_value)
 
 LVecBase3d (double x, double y, double z)
 
 LVecBase3d (const LVecBase2d &copy, double z)
 
 LVecBase3d (const EVector3 &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)
 
void add_z (double value)
 
bool almost_equal (const LVecBase3d &other, double threshold) const
 Returns true if two vectors are memberwise equal within a specified tolerance. More...
 
bool almost_equal (const LVecBase3d &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 LVecBase3d &other) const
 This flavor of compare_to uses a default threshold value based on the numeric type. More...
 
int compare_to (const LVecBase3d &other, double threshold) const
 Sorts vectors lexicographically, componentwise. More...
 
void componentwise_mult (const LVecBase3d &other)
 
LVecBase3d cross (const LVecBase3d &other) const
 
void cross_into (const LVecBase3d &other)
 
double dot (const LVecBase3d &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...
 
LVecBase3d fmax (const LVecBase3d &other) const
 
LVecBase3d fmin (const LVecBase3d &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 three 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, three. More...
 
LVecBase3d get_standardized_hpr () const
 Try to un-spin the hpr to a standard form. More...
 
double get_x () const
 
LVecBase2d get_xy () const
 Returns a 2-component vector that shares just the first two components of this vector. More...
 
LVecBase2d get_xz () const
 Returns a 2-component vector that shares just the first and last components of this vector. More...
 
double get_y () const
 
LVecBase2d get_yz () const
 Returns a 2-component vector that shares just the last two components of this vector. More...
 
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...
 
LVecBase3d normalized () const
 Normalizes the vector and returns the normalized vector as a copy. More...
 
bool operator!= (const LVecBase3d &other) const
 
LVecBase3d operator* (double scalar) const
 
void operator*= (double scalar)
 
LVecBase3d operator+ (const LVecBase3d &other) const
 
void operator+= (const LVecBase3d &other)
 
LVecBase3d operator- () const
 
LVecBase3d operator- (const LVecBase3d &other) const
 
void operator-= (const LVecBase3d &other)
 
LVecBase3d operator/ (double scalar) const
 
void operator/= (double scalar)
 
bool operator< (const LVecBase3d &other) const
 This performs a lexicographical comparison. More...
 
LVecBase3doperator= (const LVecBase3d &copy)
 
LVecBase3doperator= (double fill_value)
 
bool operator== (const LVecBase3d &other) const
 
double operator[] (int i) const
 
double & operator[] (int i)
 
void output (ostream &out) const
 
LVecBase3d project (const LVecBase3d &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)
 
void set_cell (int i, 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 const LPoint3dorigin (CoordinateSystem cs=CS_default)
 Returns the origin of the indicated coordinate system. More...
 
static LPoint3d rfu (double right, double fwd, double up, CoordinateSystem cs=CS_default)
 Returns a point described by right, forward, up displacements from the origin, wherever that maps to in the given coordinate system. More...
 
static const LPoint3dunit_x ()
 Returns a unit X point. More...
 
static const LPoint3dunit_y ()
 Returns a unit Y point. More...
 
static const LPoint3dunit_z ()
 Returns a unit Z point. More...
 
static const LPoint3dzero ()
 Returns a zero-length point. More...
 
- Static Public Member Functions inherited from LVecBase3d
static TypeHandle get_class_type ()
 
static void init_type ()
 
static int size ()
 Returns 3: the number of components of a LVecBase3. More...
 
static const LVecBase3dunit_x ()
 Returns a unit X vector. More...
 
static const LVecBase3dunit_y ()
 Returns a unit Y vector. More...
 
static const LVecBase3dunit_z ()
 Returns a unit Z vector. More...
 
static const LVecBase3dzero ()
 Returns a zero-length vector. More...
 

Additional Inherited Members

- Public Types inherited from LVecBase3d
enum  { num_components = 3, is_int = 0 }
 
typedef const double * const_iterator
 
typedef LSimpleMatrix< double, 1, 3 > EVector3
 
typedef const double * iterator
 
typedef double numeric_type
 
- Public Attributes inherited from LVecBase3d
EVector3 _v
 

Detailed Description

This is a three-component point in space (as opposed to a three-component vector, which represents a direction and a distance).

Some of the methods are slightly different between LPoint3 and LVector3; in particular, subtraction of two points yields a vector, while addition of a vector and a point yields a point.

Definition at line 544 of file lpoint3.h.

Member Function Documentation

◆ get_xy()

LPoint2d LPoint3d::get_xy ( ) const
inline

Returns a 2-component vector that shares just the first two components of this vector.

Definition at line 745 of file lpoint3.h.

◆ get_xz()

LPoint2d LPoint3d::get_xz ( ) const
inline

Returns a 2-component vector that shares just the first and last components of this vector.

Definition at line 756 of file lpoint3.h.

◆ get_yz()

LPoint2d LPoint3d::get_yz ( ) const
inline

Returns a 2-component vector that shares just the last two components of this vector.

Definition at line 767 of file lpoint3.h.

◆ normalized()

LPoint3d LPoint3d::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 850 of file lpoint3.h.

◆ origin()

const LPoint3d & LPoint3d::origin ( CoordinateSystem  cs = CS_default)
inlinestatic

Returns the origin of the indicated coordinate system.

This is always 0, 0, 0 with all of our existing coordinate systems; it's hard to imagine it ever being different.

Definition at line 896 of file lpoint3.h.

◆ project()

LPoint3d LPoint3d::project ( const LVecBase3d 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 862 of file lpoint3.h.

◆ rfu()

LPoint3d LPoint3d::rfu ( double  right,
double  fwd,
double  up,
CoordinateSystem  cs = CS_default 
)
inlinestatic

Returns a point described by right, forward, up displacements from the origin, wherever that maps to in the given coordinate system.

Definition at line 908 of file lpoint3.h.

◆ unit_x()

const LPoint3d & LPoint3d::unit_x ( )
inlinestatic

Returns a unit X point.

Definition at line 714 of file lpoint3.h.

◆ unit_y()

const LPoint3d & LPoint3d::unit_y ( )
inlinestatic

Returns a unit Y point.

Definition at line 724 of file lpoint3.h.

◆ unit_z()

const LPoint3d & LPoint3d::unit_z ( )
inlinestatic

Returns a unit Z point.

Definition at line 734 of file lpoint3.h.

◆ zero()

const LPoint3d & LPoint3d::zero ( )
inlinestatic

Returns a zero-length point.

Definition at line 704 of file lpoint3.h.

Referenced by MayaNodeTree::get_egg_group(), EggVertex::get_uvw(), and Triangulator3::get_vertex().


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