SDFCylinder Class Reference

Cylinder primitive. More...

#include <sdf.h>

Inheritance diagram for SDFCylinder:

Public Member Functions
	SDFCylinder (const Vector &, const Vector &, const double)
	Create a cylinder. More...
	SDFCylinder (const Cylinder &)
	Create a cylinder. More...
virtual	~SDFCylinder ()
	Destructor.
double	Signed (const Vector &) const
	Compute the signed Euclidean distance function. More...
Vector	Gradient (const Vector &) const
	Compute the gradient of the field at a given point. More...
int	Memory () const
	Return the size of a sub-tree. More...
virtual SDFNode *	Copy () const
	Deep copy.
Public Member Functions inherited from SDFEuclidean
	SDFEuclidean ()
	Create an Euclidean primitive. More...
virtual	~SDFEuclidean ()
	Destructor.
Public Member Functions inherited from SDFPrimitive
	SDFPrimitive ()
	Create a primitive.
virtual	~SDFPrimitive ()
	Destructor.
Public Member Functions inherited from SDFNode
	SDFNode ()
	Create a generic node.
virtual	~SDFNode ()
	Destructor.
virtual bool	Inside (const Vector &) const
	Check if a point is inside or outside. More...
virtual double	K () const
	Return the Lipschitz constant of the node. More...
virtual double	K (const Box &) const
	Return the local Lipschitz constant. More...
Box	GetBox () const
	Return the bounding box of the node.
virtual int	Nodes () const
	Compute the number of nodes in the sub-tree.

Additional Inherited Members
Static Public Member Functions inherited from SDFNode
static double	SmoothingPolynomialCubic (double d1, double d2, double sr)
	Generalized C2 polynomial smoothing function between two distances. More...
static double	SmoothingPolynomial (double d1, double d2, double sr)
	Generalized C1 polynomial smoothing function between two distances. More...
static double	SmoothingQuilez (double d1, double d2, double sr)
	Generalized polynomial smoothing function between two distances. More...
static double	SmoothingExp (double d1, double d2, double sr)
	Generalized exponential smoothing function between two distances. More...
static SDFNode *	Stalactite (const Vector &p, const double &h, const double &r, bool noise=true, Random &random=Random::R239, const double &largeur=0.25, const double &espacement=0.61)
	Procedural parameterized stalactite. More...
static SDFNode *	SpherePieces ()
	Sphere carved, placed on a cylinder. Nice scene for testing sharp features reconstruction.
Protected Attributes inherited from SDFNode
Box	box
	Box bounding the surface.
double	k
	Lipschitz constant.
Static Protected Attributes inherited from SDFNode
static constexpr double	Epsilon = 0.01
	Small constant used for bounding volumes.

Detailed Description

Cylinder primitive.

Computing the signed Euclidean distance from a point to a cylinder is computationally intensive, it is often more efficient to use SDFCapsules to pierce tarversing holes in an object.

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Constructor & Destructor Documentation

SDFCylinder() [1/2]

SDFCylinder::SDFCylinder ( const Vector &  a, const Vector &  b, const double  r  )

explicit

Create a cylinder.

Parameters

a,b	Vertices.
r	Radius.

SDFCylinder() [2/2]

SDFCylinder::SDFCylinder ( const Cylinder &  c )

explicit

Create a cylinder.

Parameters

c

Cylinder.

Member Function Documentation

Gradient()

Vector SDFCylinder::Gradient ( const Vector &  p ) const

virtual

Compute the gradient of the field at a given point.

Parameters

p

Point.

Reimplemented from SDFNode.

Memory()

int SDFCylinder::Memory ( ) const

virtual

Return the size of a sub-tree.

Reimplemented from SDFNode.

Reimplemented in SDFCylinderNoise.

Signed()

double SDFCylinder::Signed ( const Vector &  p ) const

virtual

Compute the signed Euclidean distance function.

By default compute the signed distance to the bounding box of the primitive.

Parameters

p

Point.

Reimplemented from SDFEuclidean.

Reimplemented in SDFCylinderNoise.