#include <opennurbs_plus_implicitfn.h>

Inheritance diagram for ON_SphereSDF:

Public Member Functions
	ON_SphereSDF (ON_3dPoint center, double radius)

double	Evaluate (const ON_3dPoint &pt, ON_3dVector &normal) const override

Public Member Functions inherited from ON_SignedDistanceFunction
	ON_SignedDistanceFunction ()

Public Attributes
const ON_3dPoint	center

const double	radius

Public Attributes inherited from ON_SignedDistanceFunction
int	nEval

Constructor & Destructor Documentation

◆ ON_SphereSDF()

ON_SphereSDF::ON_SphereSDF	(	ON_3dPoint	center,
		double	radius
	)

inline

Member Function Documentation

◆ Evaluate()

double ON_SphereSDF::Evaluate	(	const ON_3dPoint &	p,
		ON_3dVector &	normal
	)		const

overridevirtual

Evaluate the signed distance function Parameters: p [in] - the point to evaluate the SDF at normal [out] - normal at the closest point on the SDF such that closestPt = pt - dist*normal/normal.Length() Returns: the distance between the closest point and the input point. Remarks:

The returned distance can be ON_UNSET_VALUE when the SDF is unable to evaluate the distance
The returned normal is not unitized and can have (almost) zero length.

You should account for both cases when using the SDF.

Implements ON_SignedDistanceFunction.

Member Data Documentation

◆ center

const ON_3dPoint ON_SphereSDF::center

◆ radius

const double ON_SphereSDF::radius

Public Member Functions