BetterPolygon Class Reference

The Polygon class. More...

#include <polygon.h>

Public Member Functions
	BetterPolygon ()
	BetterPolygon (const QVector< QPointF > &points)
	BetterPolygon (const QPolygonF &polygon)
bool	isValid () const
bool	chordIsClear (int ind1, int ind2) const
	chordIsClear More...
bool	connectionIsClear (const BetterPolygon &other, int pointOnThis, int pointOnOther) const
bool	overlaps (const BetterPolygon &other) const
QPair< BetterPolygon, BetterPolygon >	splitPolygon () const
	splitPolygon More...
QPair< BetterPolygon, BetterPolygon >	splitPolygon (QPair< int, int > chord) const
	splitPolygon More...
QList< Triplet< QPointF, QPointF, QPointF > >	triangulate () const
	triangulate More...
QVector< BetterPolygon >	subtract (const BetterPolygon &other) const
QVector< BetterPolygon >	intersect (const BetterPolygon &other) const
QVector< BetterPolygon >	united (const BetterPolygon &other) const
const QVector< QPointF > &	points () const
QVector< QPointF > &	points ()
void	translate (const QPointF &p)
void	translate (float x, float y)

Detailed Description

The Polygon class.

Strict polygon class with floating point precision.

Rules of this are: All points must be unique No edges may overlap Points must be counter clockwise

Constructor & Destructor Documentation

BetterPolygon() [1/3]

BetterPolygon::BetterPolygon ( )

inline

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BetterPolygon() [2/3]

BetterPolygon::BetterPolygon

(

const QVector< QPointF > &

points

)

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BetterPolygon() [3/3]

BetterPolygon::BetterPolygon

(

const QPolygonF &

polygon

)

Member Function Documentation

chordIsClear()

bool BetterPolygon::chordIsClear	(	int	ind1,
		int	ind2
	)		const

chordIsClear

Returns true if the chord between ind1 and ind2 do not intersect anypart of the polygon

Parameters

ind1
ind2

Returns

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connectionIsClear()

bool BetterPolygon::connectionIsClear	(	const BetterPolygon &	other,
		int	pointOnThis,
		int	pointOnOther
	)		const

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intersect()

QVector< BetterPolygon > BetterPolygon::intersect

(

const BetterPolygon &

other

)

const

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isValid()

bool BetterPolygon::isValid

(

)

const

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overlaps()

bool BetterPolygon::overlaps

(

const BetterPolygon &

other

)

const

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points() [1/2]

const QVector<QPointF>& BetterPolygon::points ( ) const

inline

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points() [2/2]

QVector<QPointF>& BetterPolygon::points ( )

inline

splitPolygon() [1/2]

QPair< BetterPolygon, BetterPolygon > BetterPolygon::splitPolygon

(

)

const

splitPolygon

split this polygon into two with some chord. The chord is choosen at random.

Returns

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splitPolygon() [2/2]

QPair< BetterPolygon, BetterPolygon > BetterPolygon::splitPolygon

(

QPair< int, int >

chord

)

const

splitPolygon

Attempt to split the polygon at a given chord. If the chord is not clear, this will be returned as the first Polygon, and the second will be empty.

Parameters

chord

Returns

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subtract()

QVector< BetterPolygon > BetterPolygon::subtract

(

const BetterPolygon &

other

)

const

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translate() [1/2]

void BetterPolygon::translate ( const QPointF &  p )

inline

translate() [2/2]

void BetterPolygon::translate ( float  x, float  y  )

inline

triangulate()

QList< Triplet< QPointF, QPointF, QPointF > > BetterPolygon::triangulate

(

)

const

triangulate

Returns a list of triangles that represent this polygon

Returns

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united()

QVector< BetterPolygon > BetterPolygon::united

(

const BetterPolygon &

other

)

const

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---

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

• WallsAndHoles/polygon.h
• WallsAndHoles/polygon.cpp