madness::SDFBox Class Reference

A box (3 dimensions) More...

#include <sdf_shape_3D.h>

Inheritance diagram for madness::SDFBox:

Collaboration diagram for madness::SDFBox:

Public Member Functions
	SDFBox (const coord_3d &length, const coord_3d &center)
	Constructor for box.
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
const coord_3d	center
	the center of the box
const coord_3d	lengths
	Half the length of each side of the box.

Detailed Description

A box (3 dimensions)

Note

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

Constructor & Destructor Documentation

SDFBox()

madness::SDFBox::SDFBox ( const coord_3d &  length, const coord_3d &  center  )

inline

Constructor for box.

Parameters

length	The lengths of the box
center	The center of the box

Member Function Documentation

grad_sdf()

coord_3d madness::SDFBox::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::SDFBox::sdf ( const coord_3d &  pt ) const

inline

Computes the normal distance.

This SDF naively uses contours, and should be improved before serious usage. If far from the corners, the SDF is easy (similar to a plane), and is essentially what's implemented.

Parameters

pt	Point at which to compute the distance from the surface

Returns

The signed distance from the surface

References center, diff(), lengths, and max.

Member Data Documentation

center

const coord_3d madness::SDFBox::center

protected

the center of the box

Referenced by sdf().

lengths

const coord_3d madness::SDFBox::lengths

protected

Half the length of each side of the box.

Referenced by sdf().

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

• sdf_shape_3D.h