sphere_distance_cartesian()

double sphere_distance_cartesian	(	const POINT3D *	s,
		const POINT3D *	e
	)

Given two unit vectors, calculate their distance apart in radians.

Definition at line 963 of file lwgeodetic.c.

References dot_product(), and FP_MIN.

Referenced by sphere_angle().

{
        return acos(FP_MIN(1.0, dot_product(s, e)));
}

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