ON_2dPoint Class Reference

#include <opennurbs_point.h>

Public Member Functions
	ON_2dPoint ()=default
	x,y not initialized More...
	ON_2dPoint (const class ON_2fPoint &)
	from 2f point More...
	ON_2dPoint (const class ON_2fVector &)
	from 2f vector More...
	ON_2dPoint (const class ON_3fPoint &)
	from 3f point More...
	ON_2dPoint (const class ON_3fVector &)
	from 3f vector More...
	ON_2dPoint (const class ON_4fPoint &h)
	from 4f point - h.w must be non-zero More...
	ON_2dPoint (const double *)
	from double[2] array More...
	ON_2dPoint (const float *)
	from float[2] array More...
	ON_2dPoint (const ON_2dPoint &)=default
	ON_2dPoint (const ON_2dVector &)
	from 2d vector More...
	ON_2dPoint (const ON_3dPoint &)
	from 3d point More...
	ON_2dPoint (const ON_3dVector &)
	from 3d vector More...
	ON_2dPoint (const ON_4dPoint &h)
	from 4d point - h.w must be non-zero More...
	ON_2dPoint (double x, double y)
	~ON_2dPoint ()=default
ON__UINT32	DataCRC (ON__UINT32 current_remainder) const
double	DistanceTo (const ON_2dPoint &) const
double	DistanceToSquared (const ON_2dPoint &) const
bool	IsCoincident (const ON_2dPoint &P) const
bool	IsNan () const
bool	IsNotZero () const
bool	IsUnset () const
bool	IsUnsetOrNan () const
bool	IsValid () const
bool	IsZero () const
double	MaximumCoordinate () const
	absolute value of maximum coordinate More...
int	MaximumCoordinateIndex () const
double	MinimumCoordinate () const
	absolute value of minimum coordinate More...
int	MinimumCoordinateIndex () const
	operator const double * () const
	operator double * ()
	(double*) conversion operators More...
bool	operator!= (const ON_2dPoint &) const
double	operator* (const ON_2dPoint &) const
	dot product for points acting as vectors More...
double	operator* (const ON_2dVector &) const
	dot product for points acting as vectors More...
ON_2dPoint	operator* (const ON_Xform &) const
ON_2dPoint	operator* (double) const
ON_2dPoint	operator* (float) const
ON_2dPoint	operator* (int) const
ON_2dPoint &	operator*= (double)
ON_2dPoint	operator+ (const ON_2dPoint &) const
ON_2dPoint	operator+ (const ON_2dVector &) const
ON_2dPoint	operator+ (const ON_2fPoint &) const
ON_2dPoint	operator+ (const ON_2fVector &) const
ON_3dPoint	operator+ (const ON_3dPoint &) const
ON_3dPoint	operator+ (const ON_3dVector &) const
ON_3dPoint	operator+ (const ON_3fPoint &) const
ON_3dPoint	operator+ (const ON_3fVector &) const
ON_2dPoint &	operator+= (const ON_2dVector &)
ON_2dVector	operator- (const ON_2dPoint &) const
ON_2dPoint	operator- (const ON_2dVector &) const
ON_2dVector	operator- (const ON_2fPoint &) const
ON_2dPoint	operator- (const ON_2fVector &) const
ON_3dVector	operator- (const ON_3dPoint &) const
ON_3dPoint	operator- (const ON_3dVector &) const
ON_3dVector	operator- (const ON_3fPoint &) const
ON_3dPoint	operator- (const ON_3fVector &) const
ON_2dPoint &	operator-= (const ON_2dVector &)
ON_2dPoint	operator/ (double) const
ON_2dPoint	operator/ (float) const
ON_2dPoint	operator/ (int) const
ON_2dPoint &	operator/= (double)
bool	operator< (const ON_2dPoint &) const
bool	operator<= (const ON_2dPoint &) const
	dictionary order comparisons More...
ON_2dPoint &	operator= (const double *)
	point = double[2] support More...
ON_2dPoint &	operator= (const float *)
	point = float[2] support More...
ON_2dPoint &	operator= (const ON_2dPoint &)=default
ON_2dPoint &	operator= (const ON_2dVector &)
ON_2dPoint &	operator= (const ON_2fPoint &)
ON_2dPoint &	operator= (const ON_2fVector &)
ON_2dPoint &	operator= (const ON_3dPoint &)
	use implicit operator=(const ON_2dPoint&) More...
ON_2dPoint &	operator= (const ON_3dVector &)
ON_2dPoint &	operator= (const ON_3fPoint &)
ON_2dPoint &	operator= (const ON_3fVector &)
ON_2dPoint &	operator= (const ON_4dPoint &)
ON_2dPoint &	operator= (const ON_4fPoint &)
bool	operator== (const ON_2dPoint &) const
bool	operator> (const ON_2dPoint &) const
bool	operator>= (const ON_2dPoint &) const
double &	operator[] (int)
	index operators mimic double[2] behavior More...
double	operator[] (int) const
double &	operator[] (unsigned int)
double	operator[] (unsigned int) const
void	Rotate (double angle, const ON_2dPoint &center)
void	Rotate (double sin_angle, double cos_angle, const ON_2dPoint &center)
void	Set (double x, double y)
	set 2d point value More...
void	Transform (const ON_Xform &)
void	Zero ()
	set all coordinates to zero; More...

Static Public Member Functions
static int	Compare (const ON_2dPoint &lhs, const ON_2dPoint &rhs)
static const ON_2dPoint	Midpoint (const ON_2dPoint &A, const ON_2dPoint &B)

Public Attributes
double	x
double	y

Static Public Attributes
static const ON_2dPoint	NanPoint
	(ON_DBL_QNAN,ON_DBL_QNAN) More...
static const ON_2dPoint	Origin
	(0.0,0.0) More...
static const ON_2dPoint	UnsetPoint
	(ON_UNSET_VALUE,ON_UNSET_VALUE) More...

Detailed Description

ON_2dPoint

Constructor & Destructor Documentation

ON_2dPoint() [1/14]

ON_2dPoint::ON_2dPoint ( )

default

x,y not initialized

~ON_2dPoint()

ON_2dPoint::~ON_2dPoint ( )

default

ON_2dPoint() [2/14]

ON_2dPoint::ON_2dPoint ( const ON_2dPoint &  )

default

ON_2dPoint() [3/14]

ON_2dPoint::ON_2dPoint ( double  x, double  y  )

explicit

ON_2dPoint() [4/14]

ON_2dPoint::ON_2dPoint

(

const ON_3dPoint &

)

from 3d point

ON_2dPoint() [5/14]

ON_2dPoint::ON_2dPoint ( const ON_4dPoint &  h )

explicit

from 4d point - h.w must be non-zero

ON_2dPoint() [6/14]

ON_2dPoint::ON_2dPoint

(

const ON_2dVector &

)

from 2d vector

ON_2dPoint() [7/14]

ON_2dPoint::ON_2dPoint ( const ON_3dVector &  )

explicit

from 3d vector

ON_2dPoint() [8/14]

ON_2dPoint::ON_2dPoint ( const double *  )

explicit

from double[2] array

ON_2dPoint() [9/14]

ON_2dPoint::ON_2dPoint

(

const class ON_2fPoint &

)

from 2f point

ON_2dPoint() [10/14]

ON_2dPoint::ON_2dPoint ( const class ON_3fPoint &  )

explicit

from 3f point

ON_2dPoint() [11/14]

ON_2dPoint::ON_2dPoint ( const class ON_4fPoint &  h )

explicit

from 4f point - h.w must be non-zero

ON_2dPoint() [12/14]

ON_2dPoint::ON_2dPoint ( const class ON_2fVector &  )

explicit

from 2f vector

ON_2dPoint() [13/14]

ON_2dPoint::ON_2dPoint ( const class ON_3fVector &  )

explicit

from 3f vector

ON_2dPoint() [14/14]

ON_2dPoint::ON_2dPoint ( const float *  )

explicit

from float[2] array

Member Function Documentation

Compare()

static int ON_2dPoint::Compare ( const ON_2dPoint &  lhs, const ON_2dPoint &  rhs  )

static

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

DataCRC()

ON__UINT32 ON_2dPoint::DataCRC

(

ON__UINT32

current_remainder

)

const

DistanceTo()

double ON_2dPoint::DistanceTo

(

const ON_2dPoint &

)

const

DistanceToSquared()

double ON_2dPoint::DistanceToSquared

(

const ON_2dPoint &

)

const

IsCoincident()

bool ON_2dPoint::IsCoincident

(

const ON_2dPoint &

P

)

const

In opennurbs points within ON_ZERO_TOLERANCE are generally considered to be the same. Returns: True if for each coordinate pair, |a-b| <= ON_ZERO_TOLERANCE or |a-b| <= (fabs(a)+fabs(b))*ON_RELATIVE_TOLERANCE.

IsNan()

bool ON_2dPoint::IsNan

(

)

const

Returns: True if any coordinate is a nan.

IsNotZero()

bool ON_2dPoint::IsNotZero

(

)

const

Returns: true if at lease one coordinate is not zero and no coordinates are unset or nans.

IsUnset()

bool ON_2dPoint::IsUnset

(

)

const

Returns: True if any coordinate is ON_UNSET_VALUE or ON_UNSET_POSITIVE_VALUE

IsUnsetOrNan()

bool ON_2dPoint::IsUnsetOrNan

(

)

const

Returns: True if any coordinate is ON_UNSET_VALUE, ON_UNSET_POSITIVE_VALUE, or a nan

IsValid()

bool ON_2dPoint::IsValid

(

)

const

Returns: False if any coordinate is infinite, a nan, or ON_UNSET_VALUE.

IsZero()

bool ON_2dPoint::IsZero

(

)

const

Returns: true if all coordinates are not zero and no coordinates are nans. false otherwise.

MaximumCoordinate()

double ON_2dPoint::MaximumCoordinate

(

)

const

absolute value of maximum coordinate

MaximumCoordinateIndex()

int ON_2dPoint::MaximumCoordinateIndex

(

)

const

Midpoint()

static const ON_2dPoint ON_2dPoint::Midpoint ( const ON_2dPoint &  A, const ON_2dPoint &  B  )

static

Returns: (A+B)/2 Remarks: Exact when coordinates are equal and prevents overflow.

MinimumCoordinate()

double ON_2dPoint::MinimumCoordinate

(

)

const

absolute value of minimum coordinate

MinimumCoordinateIndex()

int ON_2dPoint::MinimumCoordinateIndex

(

)

const

operator const double *()

ON_2dPoint::operator const double *

(

)

const

operator double *()

ON_2dPoint::operator double *

(

)

(double*) conversion operators

operator!=()

bool ON_2dPoint::operator!=

(

const ON_2dPoint &

)

const

operator*() [1/6]

double ON_2dPoint::operator*

(

const ON_2dPoint &

)

const

dot product for points acting as vectors

operator*() [2/6]

double ON_2dPoint::operator*

(

const ON_2dVector &

)

const

dot product for points acting as vectors

operator*() [3/6]

ON_2dPoint ON_2dPoint::operator*

(

const ON_Xform &

)

const

operator*() [4/6]

ON_2dPoint ON_2dPoint::operator*

(

double

)

const

operator*() [5/6]

ON_2dPoint ON_2dPoint::operator*

(

float

)

const

operator*() [6/6]

ON_2dPoint ON_2dPoint::operator*

(

int

)

const

operator*=()

ON_2dPoint& ON_2dPoint::operator*=

(

double

)

operator+() [1/8]

ON_2dPoint ON_2dPoint::operator+

(

const ON_2dPoint &

)

const

operator+() [2/8]

ON_2dPoint ON_2dPoint::operator+

(

const ON_2dVector &

)

const

operator+() [3/8]

ON_2dPoint ON_2dPoint::operator+

(

const ON_2fPoint &

)

const

operator+() [4/8]

ON_2dPoint ON_2dPoint::operator+

(

const ON_2fVector &

)

const

operator+() [5/8]

ON_3dPoint ON_2dPoint::operator+

(

const ON_3dPoint &

)

const

operator+() [6/8]

ON_3dPoint ON_2dPoint::operator+

(

const ON_3dVector &

)

const

operator+() [7/8]

ON_3dPoint ON_2dPoint::operator+

(

const ON_3fPoint &

)

const

operator+() [8/8]

ON_3dPoint ON_2dPoint::operator+

(

const ON_3fVector &

)

const

operator+=()

ON_2dPoint& ON_2dPoint::operator+=

(

const ON_2dVector &

)

operator-() [1/8]

ON_2dVector ON_2dPoint::operator-

(

const ON_2dPoint &

)

const

operator-() [2/8]

ON_2dPoint ON_2dPoint::operator-

(

const ON_2dVector &

)

const

operator-() [3/8]

ON_2dVector ON_2dPoint::operator-

(

const ON_2fPoint &

)

const

operator-() [4/8]

ON_2dPoint ON_2dPoint::operator-

(

const ON_2fVector &

)

const

operator-() [5/8]

ON_3dVector ON_2dPoint::operator-

(

const ON_3dPoint &

)

const

operator-() [6/8]

ON_3dPoint ON_2dPoint::operator-

(

const ON_3dVector &

)

const

operator-() [7/8]

ON_3dVector ON_2dPoint::operator-

(

const ON_3fPoint &

)

const

operator-() [8/8]

ON_3dPoint ON_2dPoint::operator-

(

const ON_3fVector &

)

const

operator-=()

ON_2dPoint& ON_2dPoint::operator-=

(

const ON_2dVector &

)

operator/() [1/3]

ON_2dPoint ON_2dPoint::operator/

(

double

)

const

operator/() [2/3]

ON_2dPoint ON_2dPoint::operator/

(

float

)

const

operator/() [3/3]

ON_2dPoint ON_2dPoint::operator/

(

int

)

const

operator/=()

ON_2dPoint& ON_2dPoint::operator/=

(

double

)

operator<()

bool ON_2dPoint::operator<

(

const ON_2dPoint &

)

const

operator<=()

bool ON_2dPoint::operator<=

(

const ON_2dPoint &

)

const

dictionary order comparisons

operator=() [1/12]

ON_2dPoint& ON_2dPoint::operator=

(

const double *

)

point = double[2] support

operator=() [2/12]

ON_2dPoint& ON_2dPoint::operator=

(

const float *

)

point = float[2] support

operator=() [3/12]

ON_2dPoint& ON_2dPoint::operator= ( const ON_2dPoint &  )

default

operator=() [4/12]

ON_2dPoint& ON_2dPoint::operator=

(

const ON_2dVector &

)

operator=() [5/12]

ON_2dPoint& ON_2dPoint::operator=

(

const ON_2fPoint &

)

operator=() [6/12]

ON_2dPoint& ON_2dPoint::operator=

(

const ON_2fVector &

)

operator=() [7/12]

ON_2dPoint& ON_2dPoint::operator=

(

const ON_3dPoint &

)

use implicit operator=(const ON_2dPoint&)

operator=() [8/12]

ON_2dPoint& ON_2dPoint::operator=

(

const ON_3dVector &

)

operator=() [9/12]

ON_2dPoint& ON_2dPoint::operator=

(

const ON_3fPoint &

)

operator=() [10/12]

ON_2dPoint& ON_2dPoint::operator=

(

const ON_3fVector &

)

operator=() [11/12]

ON_2dPoint& ON_2dPoint::operator=

(

const ON_4dPoint &

)

operator=() [12/12]

ON_2dPoint& ON_2dPoint::operator=

(

const ON_4fPoint &

)

operator==()

bool ON_2dPoint::operator==

(

const ON_2dPoint &

)

const

operator>()

bool ON_2dPoint::operator>

(

const ON_2dPoint &

)

const

operator>=()

bool ON_2dPoint::operator>=

(

const ON_2dPoint &

)

const

operator[]() [1/4]

double& ON_2dPoint::operator[]

(

int

)

index operators mimic double[2] behavior

operator[]() [2/4]

double ON_2dPoint::operator[]

(

int

)

const

operator[]() [3/4]

double& ON_2dPoint::operator[]

(

unsigned int

)

operator[]() [4/4]

double ON_2dPoint::operator[]

(

unsigned int

)

const

Rotate() [1/2]

void ON_2dPoint::Rotate	(	double	angle,
		const ON_2dPoint &	center
	)

Parameters

angle	rotation in XY plane angle in radians
center	center of rotation

Rotate() [2/2]

void ON_2dPoint::Rotate	(	double	sin_angle,
		double	cos_angle,
		const ON_2dPoint &	center
	)

Parameters

sin_angle	rotation in XY plane sin(angle)
cos_angle	cos(angle)
center	center of rotation

Set()

void ON_2dPoint::Set	(	double	x,
		double	y
	)

set 2d point value

Transform()

void ON_2dPoint::Transform

(

const ON_Xform &

)

These transform the point in place. The transformation matrix acts on the left of the point; i.e., result = transformation*point

Zero()

void ON_2dPoint::Zero

(

)

set all coordinates to zero;

Deprecated:

Use p = ON_2dPoint::Origin;

Member Data Documentation

NanPoint

const ON_2dPoint ON_2dPoint::NanPoint

static

(ON_DBL_QNAN,ON_DBL_QNAN)

Origin

const ON_2dPoint ON_2dPoint::Origin

static

(0.0,0.0)

UnsetPoint

const ON_2dPoint ON_2dPoint::UnsetPoint

static

(ON_UNSET_VALUE,ON_UNSET_VALUE)

x

double ON_2dPoint::x

y

double ON_2dPoint::y