ogdf::DIntersectableRect Class Reference

Rectangles with real coordinates. More...

#include <ogdf/basic/geometry.h>

Inheritance diagram for ogdf::DIntersectableRect:

Public Member Functions
	DIntersectableRect ()=default
	Creates a rectangle with lower left and upper right point (0,0).
	DIntersectableRect (const DIntersectableRect &dr)
	Copy constructor.
	DIntersectableRect (const DPoint &center, double width, double height)
	Constructs a rectangle from the center point, width and height.
	DIntersectableRect (const DPoint &p1, const DPoint &p2)
	Creates a rectangle with lower left point p1 and upper right point p2.
	DIntersectableRect (double x1, double y1, double x2, double y2)
	Creates a rectangle with lower left point (x1,y1) and upper right point (x1,y2).
double	area () const
	Area of the rectangle.
DPoint	center () const
	Center of the rectangle.
double	distance (const DIntersectableRect &other) const
	Computes distance between two rectangles.
DIntersectableRect	intersection (const DIntersectableRect &other) const
	Returns the rectangle resulting from intersection of this and other. Returns a rectangle with zero width and height and center (0,0) if intersection is empty.
bool	intersects (const DIntersectableRect &rectangle) const
	Tests if this and the argument rectangle intersect.
void	move (const DPoint &point)
	Moves the rectangle such that its center is at the given point.
DIntersectableRect &	operator= (const DIntersectableRect &dr)
	Assignment operator.
Public Member Functions inherited from ogdf::DRect
	DRect ()=default
	Creates a rectangle with lower left and upper right point (0,0).
	DRect (const DPoint &p1, const DPoint &p2)
	Creates a rectangle with lower left point p1 and upper right point p2.
	DRect (const DRect &dr)
	Copy constructor.
	DRect (const DSegment &dl)
	Creates a rectangle defined by the end points of line segment dl.
	DRect (double x1, double y1, double x2, double y2)
	Creates a rectangle with lower left point (x1,y1) and upper right point (x2,y2).
virtual	~DRect ()=default
const DSegment	bottom () const
	Returns the bottom side of the rectangle.
bool	contains (const DPoint &p) const
	Returns true iff p lies within this rectangle, modulo the comparison epsilon OGDF_GEOM_ET.
double	height () const
	Returns the height of the rectangle.
bool	intersection (const DSegment &segment) const
	Returns true iff segment intersects this DRect.
const DSegment	left () const
	Returns the left side of the rectangle.
void	normalize ()
	Normalizes the rectangle.
bool	operator!= (const DRect &dr) const
	Inequality operator.
DRect &	operator= (const DRect &dr)
	Assignment operator.
bool	operator== (const DRect &dr) const
	Equality operator: both rectangles have the same coordinates.
const DPoint &	p1 () const
	Returns the lower left point of the rectangle.
const DPoint &	p2 () const
	Returns the upper right point of the rectangle.
const DSegment	right () const
	Returns the right side of the rectangle.
const DSegment	top () const
	Returns the top side of the rectangle.
double	width () const
	Returns the width of the rectangle.
void	xInvert ()
	Swaps the x-coordinates of the two points.
void	yInvert ()
	Swaps the y-coordinates of the two points.

Private Member Functions
void	initAreaAndCenter ()
	Normalizes the rectangle.

Private Attributes
double	m_area = 0.0
DPoint	m_center

Friends
std::ostream &	operator<< (std::ostream &os, const DIntersectableRect &dr)

Additional Inherited Members
Protected Member Functions inherited from ogdf::DRect
double	parallelDist (const DSegment &d1, const DSegment &d2) const
	Computes distance between parallel line segments.
double	pointDist (const DPoint &p1, const DPoint &p2) const
	Computes distance between two points.
Protected Attributes inherited from ogdf::DRect
DPoint	m_p1
	The lower left point of the rectangle.
DPoint	m_p2
	The upper right point of the rectangle.

Detailed Description

Rectangles with real coordinates.

Stores its m_area and m_center and provides methods to compute the intersection with other rectangles.

Definition at line 922 of file geometry.h.

Constructor & Destructor Documentation

DIntersectableRect() [1/5]

ogdf::DIntersectableRect::DIntersectableRect ( )

default

Creates a rectangle with lower left and upper right point (0,0).

DIntersectableRect() [2/5]

ogdf::DIntersectableRect::DIntersectableRect ( const DPoint &  p1, const DPoint &  p2  )

inline

Creates a rectangle with lower left point p1 and upper right point p2.

Definition at line 939 of file geometry.h.

DIntersectableRect() [3/5]

ogdf::DIntersectableRect::DIntersectableRect ( double  x1, double  y1, double  x2, double  y2  )

inline

Creates a rectangle with lower left point (x1,y1) and upper right point (x1,y2).

Definition at line 942 of file geometry.h.

DIntersectableRect() [4/5]

ogdf::DIntersectableRect::DIntersectableRect ( const DIntersectableRect &  dr )

inline

Copy constructor.

Definition at line 946 of file geometry.h.

DIntersectableRect() [5/5]

ogdf::DIntersectableRect::DIntersectableRect ( const DPoint &  center, double  width, double  height  )

inline

Constructs a rectangle from the center point, width and height.

Definition at line 950 of file geometry.h.

Member Function Documentation

area()

double ogdf::DIntersectableRect::area ( ) const

inline

Area of the rectangle.

Definition at line 969 of file geometry.h.

center()

DPoint ogdf::DIntersectableRect::center ( ) const

inline

Center of the rectangle.

Definition at line 966 of file geometry.h.

distance()

double ogdf::DIntersectableRect::distance

(

const DIntersectableRect &

other

)

const

Computes distance between two rectangles.

initAreaAndCenter()

void ogdf::DIntersectableRect::initAreaAndCenter ( )

private

Normalizes the rectangle.

Makes sure that the lower left point lies below and left of the upper right point. Update m_area and m_center.

intersection()

DIntersectableRect ogdf::DIntersectableRect::intersection

(

const DIntersectableRect &

other

)

const

Returns the rectangle resulting from intersection of this and other. Returns a rectangle with zero width and height and center (0,0) if intersection is empty.

intersects()

bool ogdf::DIntersectableRect::intersects

(

const DIntersectableRect &

rectangle

)

const

Tests if this and the argument rectangle intersect.

move()

void ogdf::DIntersectableRect::move

(

const DPoint &

point

)

Moves the rectangle such that its center is at the given point.

operator=()

DIntersectableRect & ogdf::DIntersectableRect::operator= ( const DIntersectableRect &  dr )

inline

Assignment operator.

Definition at line 955 of file geometry.h.

Friends And Related Symbol Documentation

operator<<

std::ostream & operator<< ( std::ostream &  os, const DIntersectableRect &  dr  )

friend

Member Data Documentation

m_area

double ogdf::DIntersectableRect::m_area = 0.0

private

Definition at line 925 of file geometry.h.

m_center

DPoint ogdf::DIntersectableRect::m_center

private

Definition at line 926 of file geometry.h.

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

• include/ogdf/basic/geometry.h