TreeNoise Class Reference

Noise operator. More...

#include <blobtree.h>

Inheritance diagram for TreeNoise:

Public Member Functions
	TreeNoise (const double &, TreeNode *)
	Create a noise operator.
virtual	~TreeNoise ()
	Recursively destroys a noise node.
double	Intensity (const Vector &) const
	Compute the field value at a given point in space.
virtual TreeNode *	Copy () const
	Create a deep copy of the node.
int	Memory () const
	Compute the size of a node.
double	K () const
	Compute the gradient Lipschitz constant of the sub-tree.
double	K (const Box &) const
	Compute the local Lipschitz constant in a box.
double	K (const Ray &) const
	Computes the Lipschitz constant along a ray.
Color	GetMaterial (const Vector &, const Vector &=Vector::Null) const
	Compute the color of the node.
TreeNode *	Cut (const Box &) const
	Cut the sub-tree to simplify its structure inside a box.
Public Member Functions inherited from TreeUnary
	TreeUnary (TreeNode *)
	Create a generic warping node.
virtual	~TreeUnary ()
	Recursively destroys the structure.
virtual int	Nodes () const
	Compute the number of nodes of the sub-tree.
virtual int	Depth () const
	Compute the dpeth of the sub-tree.
virtual void	SetThreshold (const double &)
	Recursively setup the threshold value.
Public Member Functions inherited from TreeOperator
	TreeOperator ()
	Creates an operator node.
virtual	~TreeOperator ()
	Destroys an operator.
Public Member Functions inherited from TreeNode
	TreeNode ()
	Create a virtual node of the Blob-Tree structure.
virtual	~TreeNode ()
	Destroys a node.
virtual double	Omega (const Vector &) const
	Return the squared distance to the compact support of the node.
virtual void	IntensityGradient (const Vector &, double &, Vector &) const
	Computes the field value and the gradient at a given point in space.
virtual Vector	Gradient (const Vector &) const
	Computes the gradient of the field function at a given point in space.
virtual TreeNode *	Blend (TreeNode *)
	Insert a blending node that blends the old and the new sub-tree together.
virtual TreeNode *	Union (TreeNode *)
	Insert a union node that unions the old and the new sub-tree together.
virtual TreeNode *	Difference (TreeNode *)
	Insert a difference node.
virtual TreeNode *	Translate (const Vector &)
	Insert a translation node.
virtual TreeNode *	Rotate (const Matrix &)
	Insert a rotation node.
virtual TreeNode *	Scale (const Vector &)
	Insert a scaling node.
virtual double	K (const Segment &) const
	Compute the Lipschitz constant along a segment.
virtual double	K (const RayStep &) const
	Compute the Lipschitz constant along an optimized ray-stepping segment.
virtual double	K (const Sphere &) const
	Compute the Lipschitz constant in a sphere.
Box	GetBox () const
	Return the bounding box of the node.
virtual QString	Show (int=0) const
	Show the tree hierarchy.
virtual Vector	Dichotomy (Vector, Vector, double, double, double, const double &=1.0e-4)
	Compute the intersection between the implicit surface and a segment.

Protected Attributes
double	a
	Uniform scale in space (frequency).
Protected Attributes inherited from TreeNode
Box	box = Box::Null
	Bounding box of the node.
double	T = 0.5
	Threshold value.

Additional Inherited Members
Static Protected Attributes inherited from TreeNode
static const double	Epsilon = 1e-6
	Epsilon value for gradient computation.

Detailed Description

Noise operator.

A warping node that smoothly deforms space using a noise function. ,

Constructor & Destructor Documentation

TreeNoise()

TreeNoise::TreeNoise ( const double & a, TreeNode * node )

explicit

Create a noise operator.

Parameters

node	Child sub-tree.
a	Amplitude of the noise.

Member Function Documentation

Intensity()

double TreeNoise::Intensity ( const Vector & p ) const

virtual

Compute the field value at a given point in space.

Parameters

p

Point.

Implements TreeNode.

K() [1/2]

double TreeNoise::K ( const Box & b ) const

virtual

Compute the local Lipschitz constant in a box.

Implements TreeNode.

K() [2/2]

double TreeNoise::K ( const Ray & ray ) const

virtual

Computes the Lipschitz constant along a ray.

Parameters

ray

The ray.

Implements TreeNode.

GetMaterial()

Color TreeNoise::GetMaterial ( const Vector & p, const Vector & n = Vector::Null ) const

virtual

Compute the color of the node.

Parameters

p	Point.
n	Direction.

Reimplemented from TreeNode.

Cut()

TreeNode * TreeNoise::Cut ( const Box & b ) const

virtual

Cut the sub-tree to simplify its structure inside a box.

Parameters

b

The box.

Implements TreeNode.