GEOM_FADE2D::Point2 Class Reference

Point. More...

#include <Point2.h>

Public Member Functions
	Point2 ()
	Default constructor. More...
	Point2 (const double x_, const double y_)
	Constructor. More...
	Point2 (const Point2 &p_)
	Copy constructor. More...
void	change (const double x_, const double y_)
int	getCustomIndex () const
	Get the custom index. More...
Triangle2 *	getIncidentTriangle () const
	Get the associated triangle. More...
double	getMaxAbs () const
	Get max(abs(x),abs(y))
bool	operator!= (const Point2 &p) const
	Inequality operator. More...
Point2	operator+ (const Vector2 &vec) const
	Add vector and point.
Vector2	operator- (const Point2 &other) const
	Returns a vector from other to *this.
Point2	operator- (const Vector2 &vec) const
	Subtract vector from point.
bool	operator< (const Point2 &p) const
	Less than operator. More...
Point2 &	operator= (const Point2 &other)
bool	operator== (const Point2 &p) const
	Equality operator. More...
bool	operator> (const Point2 &p) const
	Greater than operator. More...
void	set (const double x_, const double y_, int customIndex_)
	Set the coordinates and customIndex. More...
void	set (const Point2 &pnt)
	Set the coordiantes. More...
void	setCustomIndex (int customIndex_)
	Set a custom index. More...
void	setIncidentTriangle (Triangle2 *pT)
	Associate a triangle with the point. More...
double	x () const
	Get the x-coordinate. More...
void	xy (double &x_, double &y_) const
	Get the x- and y-coordinate. More...
double	y () const
	Get the y-coordinate. More...

Protected Attributes
double	coordX
double	coordY
int	customIndex
Triangle2 *	pAssociatedTriangle

Friends
class	Dt2
std::ostream &	operator<< (std::ostream &stream, const Point2 &pnt)
	Print to stream.
std::istream &	operator>> (std::istream &stream, Point2 &pnt)
	Stream-to-Point.

Detailed Description

This class represents a point in 2D with x- and y-coordinates and an additional pointer to an associated triangle.

Constructor & Destructor Documentation

Point2() [1/3]

GEOM_FADE2D::Point2::Point2 ( const double  x_, const double  y_  )

inline

Parameters

x_	x-coordinate
y_	y-coordinate

Point2() [2/3]

GEOM_FADE2D::Point2::Point2 ( )

inline

The coordinates are initialized to -DBL_MAX

Point2() [3/3]

GEOM_FADE2D::Point2::Point2 ( const Point2 &  p_ )

inline

Create a point as a copy of p_. The associated triangle pointer is initialized to NULL

Member Function Documentation

getCustomIndex()

int GEOM_FADE2D::Point2::getCustomIndex ( ) const

inline

Returns

the custom index.

Note

The custom index defaults to -1. It is not the index of the point in the triangulation (such an index does not exist) but an arbitrary value which can be set by the user.

See also

void setCustomIndex(int customIndex_)

A best practices example that deals with indices: http://www.geom.at/runtime/

getIncidentTriangle()

Triangle2* GEOM_FADE2D::Point2::getIncidentTriangle ( ) const

inline

Returns

the associated triangle

operator!=()

bool GEOM_FADE2D::Point2::operator!= ( const Point2 &  p ) const

inline

Compares the x and y coordinates

Note

Although a point has a z-coordinate in the 2.5D version only x and y a compared by this method

operator<()

bool GEOM_FADE2D::Point2::operator< ( const Point2 &  p ) const

inline

Compares the x and y coordinates

Note

Although a point has a z-coordinate in the 2.5D version only x and y a compared by this method

operator==()

bool GEOM_FADE2D::Point2::operator== ( const Point2 &  p ) const

inline

Compares the x and y coordinates

Note

Although a point has a z-coordinate in the 2.5D version only x and y a compared by this method

operator>()

bool GEOM_FADE2D::Point2::operator> ( const Point2 &  p ) const

inline

Compares the x and y coordinates

Note

Although a point has a z-coordinate in the 2.5D version only x and y a compared by this method

set() [1/2]

void GEOM_FADE2D::Point2::set ( const double  x_, const double  y_, int  customIndex_  )

inline

Internal method

Parameters

x_	x-coordinate
y_	y-coordinate
customIndex_	Arbitrary index, use -1 if not required

set() [2/2]

void GEOM_FADE2D::Point2::set ( const Point2 &  pnt )

inline

Parameters

pnt	is the point whose coordinates are assigned to the current point

setCustomIndex()

void GEOM_FADE2D::Point2::setCustomIndex ( int  customIndex_ )

inline

An arbitrary index can be assigned to a point. Use getCustomIndex() to retrieve it later.

Note

This method is provided for the users' convenience. It has nothing to do with the internal data structures of Fade 2D and using this method is optional. By default this index is -1.

See also

int getCustomIndex()

A best practices example that deals with indices: http://www.geom.at/runtime/

setIncidentTriangle()

void GEOM_FADE2D::Point2::setIncidentTriangle ( Triangle2 *  pT )

inline

Parameters

pT	will be associated with the triangle

x()

double GEOM_FADE2D::Point2::x ( ) const

inline

Returns

the x-coordinate

xy()

void GEOM_FADE2D::Point2::xy ( double &  x_, double &  y_  ) const

inline

Parameters

x_	x-coordinate
y_	y-coordinate

y()

double GEOM_FADE2D::Point2::y ( ) const

inline

Returns

the y-coordinate

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

• Point2.h