Panda3D
Public Types | Public Member Functions | Static Public Member Functions | Public Attributes | List of all members
LVecBase4f Class Reference

This is the base class for all three-component vectors and points. More...

Inheritance diagram for LVecBase4f:
LPlanef LPoint4f LQuaternionf LVector4f LOrientationf LRotationf

Public Types

enum  { num_components = 4, is_int = 0 }
 

Public Member Functions

object __getattr__ (str attr_name)
 
 __init__ ()
 
 __init__ (const LPoint3f point)
 Constructs an LVecBase4 from an LPoint3. More...
 
 __init__ (const LVecBase3f copy, float w)
 
 __init__ (const LVecBase4f)
 
 __init__ (const LVector3f vector)
 Constructs an LVecBase4 from an LVector3. More...
 
 __init__ (const UnalignedLVecBase4f copy)
 
 __init__ (float fill_value)
 
 __init__ (float x, float y, float z, float w)
 
object __ipow__ (float exponent)
 
LVecBase4f __pow__ (float exponent)
 
object __reduce__ ()
 
str __repr__ ()
 
int __setattr__ (str attr_name, object assign)
 
int addHash (int hash)
 Adds the vector into the running hash. More...
 
int addHash (int hash, float threshold)
 Adds the vector into the running hash. More...
 
 addToCell (int i, float value)
 
 addW (float value)
 
 addX (float value)
 
 addY (float value)
 
 addZ (float value)
 
bool almostEqual (const LVecBase4f other)
 Returns true if two vectors are memberwise equal within a default tolerance based on the numeric type. More...
 
bool almostEqual (const LVecBase4f other, float threshold)
 Returns true if two vectors are memberwise equal within a specified tolerance. More...
 
int compareTo (const LVecBase4f other)
 This flavor of compare_to uses a default threshold value based on the numeric type. More...
 
int compareTo (const LVecBase4f other, float threshold)
 Sorts vectors lexicographically, componentwise. More...
 
 componentwiseMult (const LVecBase4f other)
 
float dot (const LVecBase4f other)
 
 fill (float fill_value)
 Sets each element of the vector to the indicated fill_value. More...
 
LVecBase4f fmax (const LVecBase4f other)
 
LVecBase4f fmin (const LVecBase4f other)
 
 generateHash (ChecksumHashGenerator hashgen)
 Adds the vector to the indicated hash generator. More...
 
 generateHash (ChecksumHashGenerator hashgen, float threshold)
 Adds the vector to the indicated hash generator. More...
 
float getCell (int i)
 
 getData ()
 Returns the address of the first of the four data elements in the vector. More...
 
int getHash ()
 Returns a suitable hash for phash_map. More...
 
int getHash (float threshold)
 Returns a suitable hash for phash_map. More...
 
float getW ()
 
float getX ()
 
LVecBase2f getXy ()
 Returns the x and y component of this vector. More...
 
LVecBase3f getXyz ()
 Returns the x, y and z component of this vector. More...
 
float getY ()
 
float getZ ()
 
bool isNan ()
 Returns true if any component of the vector is not-a-number, false otherwise. More...
 
float length ()
 Returns the length of the vector, by the Pythagorean theorem. More...
 
float lengthSquared ()
 Returns the square of the vector's length, cheap and easy. More...
 
bool normalize ()
 Normalizes the vector in place. More...
 
LVecBase4f normalized ()
 Normalizes the vector and returns the normalized vector as a copy. More...
 
bool operator != (const LVecBase4f other)
 
LVecBase4f operator * (float scalar)
 
LVecBase4f operator *= (float scalar)
 
LVecBase4f operator - ()
 
LVecBase4f operator - (const LVecBase4f other)
 
LVecBase4f operator -= (const LVecBase4f other)
 
 operator [] (int i, float assign_val)
 
float operator [] (int i)
 
 operator new (int size)
 
LVecBase4f operator+ (const LVecBase4f other)
 
LVecBase4f operator+= (const LVecBase4f other)
 
LVecBase4f operator/ (float scalar)
 
LVecBase4f operator/= (float scalar)
 
bool operator< (const LVecBase4f other)
 
LVecBase4f operator= (const LVecBase4f copy)
 
LVecBase4f operator= (float fill_value)
 
bool operator== (const LVecBase4f other)
 
 output (Ostream out)
 
LVecBase4f project (const LVecBase4f onto)
 Returns a new vector representing the projection of this vector onto another one. More...
 
 readDatagram (DatagramIterator source)
 Reads the vector from the Datagram using get_stdfloat(). More...
 
 readDatagramFixed (DatagramIterator source)
 Reads the vector from the Datagram using get_float32() or get_float64(). More...
 
 set (float x, float y, float z, float w)
 
 setCell (int i, float value)
 
 setW (float value)
 
 setX (float value)
 
 setY (float value)
 
 setZ (float value)
 
 writeDatagram (Datagram destination)
 Writes the vector to the Datagram using add_stdfloat(). More...
 
 writeDatagramFixed (Datagram destination)
 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 getClassType ()
 
static int getNumComponents ()
 
static int size ()
 
static const LVecBase4f unitW ()
 Returns a unit W vector. More...
 
static const LVecBase4f unitX ()
 Returns a unit X vector. More...
 
static const LVecBase4f unitY ()
 Returns a unit Y vector. More...
 
static const LVecBase4f unitZ ()
 Returns a unit Z vector. More...
 
static const LVecBase4f zero ()
 Returns a zero-length vector. More...
 

Public Attributes

float x
 
LVecBase2f xy
 Returns the x and y component of this vector. More...
 
LVecBase3f xyz
 Returns the x, y and z component of this vector. More...
 
float y
 
float z
 

Detailed Description

This is the base class for all three-component vectors and points.

Member Enumeration Documentation

◆ anonymous enum

anonymous enum
Enumerator
num_components 
is_int 

Member Function Documentation

◆ __getattr__()

object __getattr__ ( str  attr_name)

◆ __init__() [1/8]

__init__ ( )

◆ __init__() [2/8]

__init__ ( const LPoint3f  point)

Constructs an LVecBase4 from an LPoint3.

The w coordinate is set to 1.0.

◆ __init__() [3/8]

__init__ ( const LVecBase3f  copy,
float  w 
)

◆ __init__() [4/8]

__init__ ( const  LVecBase4f)

◆ __init__() [5/8]

__init__ ( const LVector3f  vector)

Constructs an LVecBase4 from an LVector3.

The w coordinate is set to 0.0.

◆ __init__() [6/8]

__init__ ( const UnalignedLVecBase4f  copy)

◆ __init__() [7/8]

__init__ ( float  fill_value)

◆ __init__() [8/8]

__init__ ( float  x,
float  y,
float  z,
float  w 
)

◆ __ipow__()

object __ipow__ ( float  exponent)

◆ __pow__()

LVecBase4f __pow__ ( float  exponent)

◆ __reduce__()

object __reduce__ ( )

◆ __repr__()

str __repr__ ( )

◆ __setattr__()

int __setattr__ ( str  attr_name,
object  assign 
)

◆ addHash() [1/2]

int addHash ( int  hash)

Adds the vector into the running hash.

◆ addHash() [2/2]

int addHash ( int  hash,
float  threshold 
)

Adds the vector into the running hash.

◆ addToCell()

addToCell ( int  i,
float  value 
)

◆ addW()

addW ( float  value)

◆ addX()

addX ( float  value)

◆ addY()

addY ( float  value)

◆ addZ()

addZ ( float  value)

◆ almostEqual() [1/2]

bool almostEqual ( const LVecBase4f  other)

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

◆ almostEqual() [2/2]

bool almostEqual ( const LVecBase4f  other,
float  threshold 
)

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

◆ compareTo() [1/2]

int compareTo ( const LVecBase4f  other)

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

◆ compareTo() [2/2]

int compareTo ( const LVecBase4f  other,
float  threshold 
)

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).

◆ componentwiseMult()

componentwiseMult ( const LVecBase4f  other)

◆ dot()

float dot ( const LVecBase4f  other)

◆ fill()

fill ( float  fill_value)

Sets each element of the vector to the indicated fill_value.

This is particularly useful for initializing to zero.

◆ fmax()

LVecBase4f fmax ( const LVecBase4f  other)

◆ fmin()

LVecBase4f fmin ( const LVecBase4f  other)

◆ generateHash() [1/2]

generateHash ( ChecksumHashGenerator  hashgen)

Adds the vector to the indicated hash generator.

◆ generateHash() [2/2]

generateHash ( ChecksumHashGenerator  hashgen,
float  threshold 
)

Adds the vector to the indicated hash generator.

◆ getCell()

float getCell ( int  i)

◆ getClassType()

static TypeHandle getClassType ( )
static

◆ getData()

getData ( )

Returns the address of the first of the four data elements in the vector.

The remaining elements occupy the next positions consecutively in memory.

◆ getHash() [1/2]

int getHash ( )

Returns a suitable hash for phash_map.

◆ getHash() [2/2]

int getHash ( float  threshold)

Returns a suitable hash for phash_map.

◆ getNumComponents()

static int getNumComponents ( )
static

◆ getW()

float getW ( )

◆ getX()

float getX ( )

◆ getXy()

LVecBase2f getXy ( )

Returns the x and y component of this vector.

◆ getXyz()

LVecBase3f getXyz ( )

Returns the x, y and z component of this vector.

◆ getY()

float getY ( )

◆ getZ()

float getZ ( )

◆ isNan()

bool isNan ( )

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

◆ length()

float length ( )

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

◆ lengthSquared()

float lengthSquared ( )

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

◆ normalize()

bool normalize ( )

Normalizes the vector in place.

Returns true if the vector was normalized, false if it was a zero-length vector.

◆ normalized()

LVecBase4f normalized ( )

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.

◆ operator !=()

bool operator != ( const LVecBase4f  other)

◆ operator *()

LVecBase4f operator * ( float  scalar)

◆ operator *=()

LVecBase4f operator *= ( float  scalar)

◆ operator -() [1/2]

LVecBase4f operator - ( )

◆ operator -() [2/2]

LVecBase4f operator - ( const LVecBase4f  other)

◆ operator -=()

LVecBase4f operator -= ( const LVecBase4f  other)

◆ operator []() [1/2]

operator [] ( int  i,
float  assign_val 
)

◆ operator []() [2/2]

float operator [] ( int  i)

◆ operator new()

operator new ( int  size)

◆ operator+()

LVecBase4f operator+ ( const LVecBase4f  other)

◆ operator+=()

LVecBase4f operator+= ( const LVecBase4f  other)

◆ operator/()

LVecBase4f operator/ ( float  scalar)

◆ operator/=()

LVecBase4f operator/= ( float  scalar)

◆ operator<()

bool operator< ( const LVecBase4f  other)

◆ operator=() [1/2]

LVecBase4f operator= ( const LVecBase4f  copy)

◆ operator=() [2/2]

LVecBase4f operator= ( float  fill_value)

◆ operator==()

bool operator== ( const LVecBase4f  other)

◆ output()

output ( Ostream  out)

◆ project()

LVecBase4f project ( const LVecBase4f  onto)

Returns a new vector representing the projection of this vector onto another one.

The resulting vector will be a scalar multiple of onto.

◆ readDatagram()

readDatagram ( DatagramIterator  source)

Reads the vector from the Datagram using get_stdfloat().

◆ readDatagramFixed()

readDatagramFixed ( DatagramIterator  source)

Reads the vector from the Datagram using get_float32() or get_float64().

See write_datagram_fixed().

◆ set()

set ( float  x,
float  y,
float  z,
float  w 
)

◆ setCell()

setCell ( int  i,
float  value 
)

◆ setW()

setW ( float  value)

◆ setX()

setX ( float  value)

◆ setY()

setY ( float  value)

◆ setZ()

setZ ( float  value)

◆ size()

static int size ( )
static

◆ unitW()

static const LVecBase4f unitW ( )
static

Returns a unit W vector.

◆ unitX()

static const LVecBase4f unitX ( )
static

Returns a unit X vector.

◆ unitY()

static const LVecBase4f unitY ( )
static

Returns a unit Y vector.

◆ unitZ()

static const LVecBase4f unitZ ( )
static

Returns a unit Z vector.

◆ writeDatagram()

writeDatagram ( Datagram  destination)

Writes the vector to the Datagram using add_stdfloat().

This is appropriate when you want to write the vector using the standard width setting, especially when you are writing a bam file.

◆ writeDatagramFixed()

writeDatagramFixed ( Datagram  destination)

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().

This is appropriate when you want to write a fixed-width value to the datagram, especially when you are not writing a bam file.

◆ zero()

static const LVecBase4f zero ( )
static

Returns a zero-length vector.

Member Data Documentation

◆ x

float x

◆ xy

Returns the x and y component of this vector.

◆ xyz

Returns the x, y and z component of this vector.

◆ y

float y

◆ z

float z