Differential D673 Diff 2667 source/simulation2/helpers/Geometry.cpp

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	CFixedVector2D Geometry::GetHalfBoundingBox(const CFixedVector2D& u, const CFixedVector2D& v, const CFixedVector2D& halfSize)			CFixedVector2D Geometry::GetHalfBoundingBox(const CFixedVector2D& u, const CFixedVector2D& v, const CFixedVector2D& halfSize)
	{			{
	return CFixedVector2D(			return CFixedVector2D(
	u.X.Multiply(halfSize.X).Absolute() + v.X.Multiply(halfSize.Y).Absolute(),			u.X.Multiply(halfSize.X).Absolute() + v.X.Multiply(halfSize.Y).Absolute(),
	u.Y.Multiply(halfSize.X).Absolute() + v.Y.Multiply(halfSize.Y).Absolute()			u.Y.Multiply(halfSize.X).Absolute() + v.Y.Multiply(halfSize.Y).Absolute()
	);			);
	}			}

	float Geometry::ChordToCentralAngle(const float chordLength, const float radius)
	{
	return acosf(1.f - SQR(chordLength)/(2.f*SQR(radius))); // cfr. law of cosines
	}

	fixed Geometry::DistanceToSquare(const CFixedVector2D& point, const CFixedVector2D& u, const CFixedVector2D& v, const CFixedVector2D& halfSize, bool countInsideAsZero)			fixed Geometry::DistanceToSquare(const CFixedVector2D& point, const CFixedVector2D& u, const CFixedVector2D& v, const CFixedVector2D& halfSize, bool countInsideAsZero)
	{			{
	/*			/*
	* Relative to its own coordinate system, we have a square like:			* Relative to its own coordinate system, we have a square like:
	*			*
	* A : B : C			* A : B : C
	* : :			* : :
	* - - ########### - -			* - - ########### - -
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