TreeContact Class Reference

The contact node. More...

#include <blobtree.h>

Inheritance diagram for TreeContact:

Public Member Functions
	TreeContact (TreeNode *, TreeNode *)
	Creates a contact operator.
virtual	~TreeContact ()
	Destroy a blending node. Implicitly calls TreeOperator::~TreeOperator().
double	Intensity (const Vector &) const
	Computes the field value at a given point in space.
virtual TreeNode *	Copy () const
	Create a deep copy of blending node.
double	K () const
	Computes the gradient Lipschitz constant of the blending sub-tree.
double	K (const Box &) const
	Compute the local Lipschitz constant in a box.
double	K (const Segment &) const
	Compute the Lipschitz constant along a segment.
double	K (const Sphere &) const
	Compute the Lipschitz constant in a sphere.
double	K (const Ray &) const
	Computes the Lipschitz constant of the blending sub-tree intersecting a ray.
Color	GetMaterial (const Vector &, const Vector &=Vector::Null) const
	Get the texture of blending node.
TreeNode *	Cut (const Box &) const
	Cuts the node to simplify its structure inside a box.
Public Member Functions inherited from TreeBinary
	TreeBinary (TreeNode *, TreeNode *)
	Creates a union operator node given a small set of children nodes.
virtual	~TreeBinary ()
	Destroys an operator, destroying all existing children.
virtual int	Memory () const
	Compute the size of the sub-tree.
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 RayStep &) const
	Compute the Lipschitz constant along an optimized ray-stepping segment.
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.

Additional Inherited Members
Protected Attributes inherited from TreeNode
Box	box = Box::Null
	Bounding box of the node.
double	T = 0.5
	Threshold value.
Static Protected Attributes inherited from TreeNode
static const double	Epsilon = 1e-6
	Epsilon value for gradient computation.

Detailed Description

The contact node.

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Constructor & Destructor Documentation

TreeContact()

TreeContact::TreeContact ( TreeNode * a, TreeNode * b )

explicit

Creates a contact operator.

Parameters

a,b	Sub-trees.

Member Function Documentation

Intensity()

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

virtual

Computes the field value at a given point in space.

Parameters

p

Point.

Implements TreeNode.

K() [1/3]

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

virtual

Compute the local Lipschitz constant in a box.

Implements TreeNode.

K() [2/3]

double TreeContact::K ( const Segment & s ) const

virtual

Compute the Lipschitz constant along a segment.

Parameters

s	The segment.

Reimplemented from TreeNode.

K() [3/3]

double TreeContact::K ( const Sphere & s ) const

virtual

Compute the Lipschitz constant in a sphere.

Parameters

s	The sphere.

Reimplemented from TreeNode.

GetMaterial()

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

virtual

Get the texture of blending node.

Simply get the material parameters of the children nodes and weight those parameters with the field of the nodes.

Parameters

p	Point.
n	Normal.

Reimplemented from TreeNode.