OpenPaperOpt/V2.h File Reference

#include <math.h>

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Classes
class	V2< T >
Defines
#define	PI   3.1415926535897932384626433832795
#define	AREA(V1, V2, V3, V4)   (fabs(0.5*((V1).X()*(V2).Y()+(V2).X()*(V3).Y()+(V3).X()*(V4).Y()+(V4).X()*(V1).Y()-(V2).X()*(V1).Y()-(V3).X()*(V2).Y()-(V4).X()*(V3).Y()-(V1).X()*(V4).Y())))
#define	AREA0(V2, V3, V4)   (fabs(0.5*((V2).X()*(V3).Y()+(V3).X()*(V4).Y()-(V3).X()*(V2).Y()-(V4).X()*(V3).Y())))
Functions
template<class T >
V2< T >	operator+ (const V2< T > &a, const V2< T > &b)
template<class T >
V2< T >	operator- (const V2< T > &a, const V2< T > &b)
template<class T >
T	operator* (const V2< T > &a, const V2< T > &b)
template<class T >
V2< T >	operator* (const V2< T > &a, T f)
template<class T >
V2< T >	operator/ (const V2< T > &a, T f)
template<class T >
V2< T >	elemMul (const V2< T > &a, const V2< T > &b)
template<class T >
int	CrossLineToLineseg (const V2< T > &a1, const V2< T > &a2, const V2< T > &b1, const V2< T > &b2)

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Define Documentation

#define AREA	(		V1,
			V2,
			V3,
			V4
	)		(fabs(0.5*((V1).X()*(V2).Y()+(V2).X()*(V3).Y()+(V3).X()*(V4).Y()+(V4).X()*(V1).Y()-(V2).X()*(V1).Y()-(V3).X()*(V2).Y()-(V4).X()*(V3).Y()-(V1).X()*(V4).Y())))

#define AREA0	(		V2,
			V3,
			V4
	)		(fabs(0.5*((V2).X()*(V3).Y()+(V3).X()*(V4).Y()-(V3).X()*(V2).Y()-(V4).X()*(V3).Y())))

#define PI   3.1415926535897932384626433832795

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Function Documentation

template<class T >

int CrossLineToLineseg	(	const V2< T > &	a1,
		const V2< T > &	a2,
		const V2< T > &	b1,
		const V2< T > &	b2
	)		[inline]

Returns:

true if linesegment (b1->b2) cross line through {a1,a2}

algorithm: Determine line equation of a on the form p*n=d Insert b1,b2 in p*n-d and check if same sign => no crossing

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template<class T >

V2<T> elemMul	(	const V2< T > &	a,
		const V2< T > &	b
	)		[inline]

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template<class T >

T operator*	(	const V2< T > &	a,
		const V2< T > &	b
	)		[inline]

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template<class T >

V2<T> operator*	(	const V2< T > &	a,
		T	f
	)		[inline]

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template<class T >

V2<T> operator+	(	const V2< T > &	a,
		const V2< T > &	b
	)		[inline]

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template<class T >

V2<T> operator-	(	const V2< T > &	a,
		const V2< T > &	b
	)		[inline]

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template<class T >

V2<T> operator/	(	const V2< T > &	a,
		T	f
	)		[inline]