ON_PlaneSDF Class Reference

#include <opennurbs_plus_implicitfn.h>

Inheritance diagram for ON_PlaneSDF:

Public Member Functions
	ON_PlaneSDF (const ON_Plane &plane)
double	Evaluate (const ON_3dPoint &pt, ON_3dVector &normal) const override
Public Member Functions inherited from ON_SignedDistanceFunction
	ON_SignedDistanceFunction ()

Additional Inherited Members
Public Attributes inherited from ON_SignedDistanceFunction
int	nEval

Constructor & Destructor Documentation

ON_PlaneSDF()

ON_PlaneSDF::ON_PlaneSDF

(

const ON_Plane &

plane

)

Member Function Documentation

Evaluate()

double ON_PlaneSDF::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:

1. The returned distance can be ON_UNSET_VALUE when the SDF is unable to evaluate the distance
2. 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.