Special box tests
[Geometry algorithms]

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Detailed Description

Functions
TL_DLL bool	TeDisjointOrTouches (const TeBox &bx1, const TeBox &bx2)
	Check if box1 is DISJOINT or TOUCHes box2.
TL_DLL bool	TeWithinOrTouches (const TeCoord2D &c, const TeCoord2D &c1, const TeCoord2D &c2)
	Check if coordinate c is WITHIN or TOUCHes segments c1 and c2.

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Function Documentation

TL_DLL bool TeDisjointOrTouches	(	const TeBox &	bx1,
		const TeBox &	bx2
	)

Definition at line 1158 of file TeGeometryAlgorithms.cpp.

References TeGeometryAlgorithmsPrecision::IsGreaterEqual(), TeBox::x1(), TeBox::x2(), TeBox::y1(), and TeBox::y2().

{
        // B1 to the right of or on B2
        if(TeGeometryAlgorithmsPrecision::IsGreaterEqual(bx1.x1(), bx2.x2())) 
                return true;

        // B1 to the left of or on B2
        if(TeGeometryAlgorithmsPrecision::IsGreaterEqual(bx2.x1(), bx1.x2())) 
                return true;

        // B2 is above or on B1
        if(TeGeometryAlgorithmsPrecision::IsGreaterEqual(bx2.y1(), bx1.y2())) 
                return true;

        // B2 is below or on B1 
        if(TeGeometryAlgorithmsPrecision::IsGreaterEqual(bx1.y1(), bx2.y2())) 
                return true;

        return false;
}

TL_DLL bool TeWithinOrTouches	(	const TeCoord2D &	c,
		const TeCoord2D &	c1,
		const TeCoord2D &	c2
	)

Definition at line 1248 of file TeGeometryAlgorithms.cpp.

References TeGeometryAlgorithmsPrecision::IsGreater(), TeGeometryAlgorithmsPrecision::IsSmaller(), TeCoord2D::x(), and TeCoord2D::y().

{
        // c is to the right of c1 and c2
        if(TeGeometryAlgorithmsPrecision::IsGreater(c.x(), c1.x()) && TeGeometryAlgorithmsPrecision::IsGreater(c.x(), c2.x()))
                return false;

        // c is above c1 and c2
        if(TeGeometryAlgorithmsPrecision::IsGreater(c.y(), c1.y()) && TeGeometryAlgorithmsPrecision::IsGreater(c.y(), c2.y()))
                return false;

        // c is to the left of c1 and c2
        if(TeGeometryAlgorithmsPrecision::IsSmaller(c.x(), c1.x()) && TeGeometryAlgorithmsPrecision::IsSmaller(c.x(), c2.x()))
                return false;

        // c is below c1 and c2
        if(TeGeometryAlgorithmsPrecision::IsSmaller(c.y(), c1.y()) && TeGeometryAlgorithmsPrecision::IsSmaller(c.y(), c2.y()))
                return false;

        return true;    
}

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