ON_4dPoint Class Reference

#include <opennurbs_point.h>

Public Member Functions
	ON_4dPoint ()=default
	x,y,z,w not initialized More...
	ON_4dPoint (const ON_4dPoint &)=default
	ON_4dPoint (double x, double y, double z, double w)
	ON_4dPoint (const ON_2dPoint &)
	These constructors are not explicit because no informtion is lost. More...
	ON_4dPoint (const ON_3dPoint &)
	ON_4dPoint (const ON_2dVector &)
	ON_4dPoint (const ON_3dVector &)
	ON_4dPoint (const double *)
	ON_4dPoint (const ON_2fPoint &)
	These constructors are not explicit because no informtion is lost. More...
	ON_4dPoint (const ON_3fPoint &)
	ON_4dPoint (const ON_4fPoint &)
	ON_4dPoint (const ON_2fVector &)
	ON_4dPoint (const ON_3fVector &)
	ON_4dPoint (const float *)
	~ON_4dPoint ()=default
ON__UINT32	DataCRC (ON__UINT32 current_remainder) const
double	EuclideanX () const
double	EuclideanY () const
double	EuclideanZ () const
bool	IsUnset () const
bool	IsValid () const
double	MaximumCoordinate () const
int	MaximumCoordinateIndex () const
double	MinimumCoordinate () const
int	MinimumCoordinateIndex () const
bool	Normalize ()
	operator const double * () const
	operator double * ()
	(double*) conversion operators More...
bool	operator!= (const ON_4dPoint &rhs) const
ON_4dPoint	operator* (double) const
ON_4dPoint	operator* (const ON_Xform &) const
ON_4dPoint &	operator*= (double)
ON_4dPoint	operator+ (const ON_4dPoint &) const
ON_4dPoint &	operator+= (const ON_4dPoint &)
ON_4dPoint	operator- (const ON_4dPoint &) const
ON_4dPoint &	operator-= (const ON_4dPoint &)
ON_4dPoint	operator/ (double) const
ON_4dPoint &	operator/= (double)
ON_4dPoint &	operator= (const ON_4dPoint &)=default
ON_4dPoint &	operator= (const ON_2dPoint &)
	use implicit operator=(const ON_4dPoint&) More...
ON_4dPoint &	operator= (const ON_3dPoint &)
ON_4dPoint &	operator= (const ON_2dVector &)
ON_4dPoint &	operator= (const ON_3dVector &)
ON_4dPoint &	operator= (const double *)
ON_4dPoint &	operator= (const class ON_2fPoint &)
ON_4dPoint &	operator= (const class ON_3fPoint &)
ON_4dPoint &	operator= (const class ON_4fPoint &)
ON_4dPoint &	operator= (const class ON_2fVector &)
ON_4dPoint &	operator= (const class ON_3fVector &)
ON_4dPoint &	operator= (const float *)
bool	operator== (const ON_4dPoint &rhs) const
double &	operator[] (int)
	index operators mimic double[4] behavior More...
double	operator[] (int) const
double &	operator[] (unsigned int)
double	operator[] (unsigned int) const
void	Set (double x, double y, double z, double w)
	set 4d point value More...
void	Transform (const ON_Xform &)

Static Public Member Functions
static int	DictionaryCompare (const ON_4dPoint &lhs, const ON_4dPoint &rhs)
	A well ordered dictionary compare function that is nan aware and can be used for robust sorting. More...
static double	InnerProduct (const ON_4dPoint &lhs, const ON_4dPoint &rhs)
	This function is provided because in rare cases it makes sense. If you are not certian why you want this value, think carefully or work with vectors and points in Euclidean coordinates. More...
static int	ProjectiveCompare (const ON_4dPoint &lhs, const ON_4dPoint &rhs)
	A well ordered projective compare function that is nan aware and can be used for robust sorting. More...

Public Attributes
double	w
double	x
double	y
double	z

Static Public Attributes
static const ON_4dPoint	Nan
static const ON_4dPoint	Zero

Constructor & Destructor Documentation

ON_4dPoint() [1/14]

ON_4dPoint::ON_4dPoint ( )

default

x,y,z,w not initialized

~ON_4dPoint()

ON_4dPoint::~ON_4dPoint ( )

default

ON_4dPoint() [2/14]

ON_4dPoint::ON_4dPoint ( const ON_4dPoint &  )

default

ON_4dPoint() [3/14]

ON_4dPoint::ON_4dPoint ( double  x, double  y, double  z, double  w  )

explicit

ON_4dPoint() [4/14]

ON_4dPoint::ON_4dPoint

(

const ON_2dPoint &

)

These constructors are not explicit because no informtion is lost.

ON_4dPoint() [5/14]

ON_4dPoint::ON_4dPoint

(

const ON_3dPoint &

)

ON_4dPoint() [6/14]

ON_4dPoint::ON_4dPoint

(

const ON_2dVector &

)

ON_4dPoint() [7/14]

ON_4dPoint::ON_4dPoint

(

const ON_3dVector &

)

ON_4dPoint() [8/14]

ON_4dPoint::ON_4dPoint ( const double *  )

explicit

ON_4dPoint() [9/14]

ON_4dPoint::ON_4dPoint

(

const ON_2fPoint &

)

These constructors are not explicit because no informtion is lost.

ON_4dPoint() [10/14]

ON_4dPoint::ON_4dPoint

(

const ON_3fPoint &

)

ON_4dPoint() [11/14]

ON_4dPoint::ON_4dPoint

(

const ON_4fPoint &

)

ON_4dPoint() [12/14]

ON_4dPoint::ON_4dPoint

(

const ON_2fVector &

)

ON_4dPoint() [13/14]

ON_4dPoint::ON_4dPoint

(

const ON_3fVector &

)

ON_4dPoint() [14/14]

ON_4dPoint::ON_4dPoint ( const float *  )

explicit

Member Function Documentation

DataCRC()

ON__UINT32 ON_4dPoint::DataCRC

(

ON__UINT32

current_remainder

)

const

DictionaryCompare()

static int ON_4dPoint::DictionaryCompare ( const ON_4dPoint &  lhs, const ON_4dPoint &  rhs  )

static

A well ordered dictionary compare function that is nan aware and can be used for robust sorting.

EuclideanX()

double ON_4dPoint::EuclideanX

(

)

const

Returns

ON_UNSET_VALUE, if x or w is ON_UNSET_VALUE or ON_UNSET_POSITIVE_VALUE and neither x nor w is a nan. x/w, otherwise

If w is 0.0 or nan, the result will be a nan.

EuclideanY()

double ON_4dPoint::EuclideanY

(

)

const

Returns

ON_UNSET_VALUE, if y or w is ON_UNSET_VALUE or ON_UNSET_POSITIVE_VALUE and neither y nor w is a nan. y/w, otherwise

If w is 0.0 or nan, the result will be a nan.

EuclideanZ()

double ON_4dPoint::EuclideanZ

(

)

const

Returns

ON_UNSET_VALUE, if z or w is ON_UNSET_VALUE or ON_UNSET_POSITIVE_VALUE and neither z nor w is a nan. z/w, otherwise

If w is 0.0 or nan, the result will be a nan.

InnerProduct()

static double ON_4dPoint::InnerProduct ( const ON_4dPoint &  lhs, const ON_4dPoint &  rhs  )

static

This function is provided because in rare cases it makes sense. If you are not certian why you want this value, think carefully or work with vectors and points in Euclidean coordinates.

Returns

lhs.x*rhs.x + lhs.y*rhs.y + lhs.z*rhs.z + lhs.w*rhs.w; Remark: It is intentional that there is no operator* override for ON_4dPoint. This intentional omission helps people pause and think before calling ON_4dPoint::InnerProduct().

IsUnset()

bool ON_4dPoint::IsUnset

(

)

const

Returns

True if any coordinate is ON_UNSET_VALUE or ON_UNSET_POSITIVE_VALUE

IsValid()

bool ON_4dPoint::IsValid

(

)

const

Returns

False if any coordinate is infinte, a nan, or ON_UNSET_VALUE.

MaximumCoordinate()

double ON_4dPoint::MaximumCoordinate

(

)

const

MaximumCoordinateIndex()

int ON_4dPoint::MaximumCoordinateIndex

(

)

const

MinimumCoordinate()

double ON_4dPoint::MinimumCoordinate

(

)

const

MinimumCoordinateIndex()

int ON_4dPoint::MinimumCoordinateIndex

(

)

const

Normalize()

bool ON_4dPoint::Normalize

(

)

operator const double *()

ON_4dPoint::operator const double *

(

)

const

operator double *()

ON_4dPoint::operator double *

(

)

(double*) conversion operators

operator!=()

bool ON_4dPoint::operator!=

(

const ON_4dPoint &

rhs

)

const

Returns

True if lhs.* != rhs.* for some coordinate and no values are nans.

operator*() [1/2]

ON_4dPoint ON_4dPoint::operator*

(

double

)

const

operator*() [2/2]

ON_4dPoint ON_4dPoint::operator*

(

const ON_Xform &

)

const

operator*=()

ON_4dPoint& ON_4dPoint::operator*=

(

double

)

operator+()

ON_4dPoint ON_4dPoint::operator+

(

const ON_4dPoint &

)

const

operator+=()

ON_4dPoint& ON_4dPoint::operator+=

(

const ON_4dPoint &

)

operator-()

ON_4dPoint ON_4dPoint::operator-

(

const ON_4dPoint &

)

const

operator-=()

ON_4dPoint& ON_4dPoint::operator-=

(

const ON_4dPoint &

)

operator/()

ON_4dPoint ON_4dPoint::operator/

(

double

)

const

operator/=()

ON_4dPoint& ON_4dPoint::operator/=

(

double

)

operator=() [1/12]

ON_4dPoint& ON_4dPoint::operator= ( const ON_4dPoint &  )

default

operator=() [2/12]

ON_4dPoint& ON_4dPoint::operator=

(

const ON_2dPoint &

)

use implicit operator=(const ON_4dPoint&)

operator=() [3/12]

ON_4dPoint& ON_4dPoint::operator=

(

const ON_3dPoint &

)

operator=() [4/12]

ON_4dPoint& ON_4dPoint::operator=

(

const ON_2dVector &

)

operator=() [5/12]

ON_4dPoint& ON_4dPoint::operator=

(

const ON_3dVector &

)

operator=() [6/12]

ON_4dPoint& ON_4dPoint::operator=

(

const double *

)

operator=() [7/12]

ON_4dPoint& ON_4dPoint::operator=

(

const class ON_2fPoint &

)

operator=() [8/12]

ON_4dPoint& ON_4dPoint::operator=

(

const class ON_3fPoint &

)

operator=() [9/12]

ON_4dPoint& ON_4dPoint::operator=

(

const class ON_4fPoint &

)

operator=() [10/12]

ON_4dPoint& ON_4dPoint::operator=

(

const class ON_2fVector &

)

operator=() [11/12]

ON_4dPoint& ON_4dPoint::operator=

(

const class ON_3fVector &

)

operator=() [12/12]

ON_4dPoint& ON_4dPoint::operator=

(

const float *

)

operator==()

bool ON_4dPoint::operator==

(

const ON_4dPoint &

rhs

)

const

Returns

True if (lhs.x == rhs.x && lhs.y == rhs.y && lhs.z == rhs.z && lhs.w == rhs.w).

operator[]() [1/4]

double& ON_4dPoint::operator[]

(

int

)

index operators mimic double[4] behavior

operator[]() [2/4]

double ON_4dPoint::operator[]

(

int

)

const

operator[]() [3/4]

double& ON_4dPoint::operator[]

(

unsigned

int

)

operator[]() [4/4]

double ON_4dPoint::operator[]

(

unsigned

int

)

const

ProjectiveCompare()

static int ON_4dPoint::ProjectiveCompare ( const ON_4dPoint &  lhs, const ON_4dPoint &  rhs  )

static

A well ordered projective compare function that is nan aware and can be used for robust sorting.

double c = non-nan value. ON_4dPoint h0 = ...; ON_4dPoint h1(c*h0.x,c*h0.x,c*h0.x,c*h0.x); 0 == ON_4dPoint::ProjectiveCompare(h0,ha);

Set()

void ON_4dPoint::Set	(	double	x,
		double	y,
		double	z,
		double	w
	)

set 4d point value

Transform()

void ON_4dPoint::Transform

(

const ON_Xform &

)

Member Data Documentation

Nan

const ON_4dPoint ON_4dPoint::Nan

static

w

double ON_4dPoint::w

x

double ON_4dPoint::x

y

double ON_4dPoint::y

z

double ON_4dPoint::z

Zero

const ON_4dPoint ON_4dPoint::Zero

static