madness::SDFEllipsoid Class Reference

An ellipsoid (3 dimensions) More...

#include <sdf_shape_3D.h>

Inheritance diagram for madness::SDFEllipsoid:

Collaboration diagram for madness::SDFEllipsoid:

Public Member Functions
	SDFEllipsoid (const coord_3d &radii, const coord_3d &center)
	Constructor for ellipsoid.
coord_3d	grad_sdf (const coord_3d &pt) const
double	sdf (const coord_3d &pt) const
	Computes the normal distance.
Public Member Functions inherited from madness::SignedDFInterface< 3 >
virtual	~SignedDFInterface ()
virtual Vector< double, NDIM >	grad_sdf (const Vector< double, NDIM > &x) const=0
	Returns the gradient of the signed distance from the surface (i.e., dsdf(x)/dx[i] )
virtual double	sdf (const Vector< double, NDIM > &x) const=0
	Returns the signed distance from the surface,.

Protected Attributes
coord_3d	center
	the center
coord_3d	radii
	the directional radii

Detailed Description

An ellipsoid (3 dimensions)

Note

LIMIT – the 3 primary axes must be x, y, and z

Constructor & Destructor Documentation

SDFEllipsoid()

madness::SDFEllipsoid::SDFEllipsoid ( const coord_3d &  radii, const coord_3d &  center  )

inline

Constructor for ellipsoid.

Parameters

radii	The directional radii of the ellipsoid
center	The center of the ellipsoid

Member Function Documentation

grad_sdf()

coord_3d madness::SDFEllipsoid::grad_sdf ( const coord_3d &  pt ) const

inline

Computes the gradient of the SDF.

Parameters

pt	Point at which to compute the gradient

Returns

the gradient

References MADNESS_EXCEPTION.

sdf()

double madness::SDFEllipsoid::sdf ( const coord_3d &  pt ) const

inline

Computes the normal distance.

This SDF naively uses contours, and should be improved before serious usage.

Parameters

pt	Point at which to compute the distance from the surface

Returns

The signed distance from the surface

References center, madness::nonlinear_vector_solver(), radii, and sum.

Member Data Documentation

center

coord_3d madness::SDFEllipsoid::center

protected

the center

Referenced by sdf().

radii

coord_3d madness::SDFEllipsoid::radii

protected

the directional radii

Referenced by sdf().

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The documentation for this class was generated from the following file:

• sdf_shape_3D.h