TreeHollowBox Class Reference

Hollow box primitive. More...

#include <blobtree.h>

Inheritance diagram for TreeHollowBox:

Public Member Functions
	TreeHollowBox (const Vector &, const Vector &, BlendCompact *)
	Create a axis aligned hollow-box element.
	TreeHollowBox (const Box &, BlendCompact *)
	Create a axis aligned hollow-box element. More...
virtual	~TreeHollowBox ()
	Destroys a box element.
double	Intensity (const Vector &) const
	Compute the intensity at a given point. More...
virtual TreeNode *	Copy () const
	Creates a deep copy of a box element.
int	Memory () const
	Compute the size of a node.
Vector	Normal (const Vector &) const
	Computes the vector distance between the box and a point in space. More...
Public Member Functions inherited from TreeNormal
	TreeNormal (BlendCompact *=nullptr)
	Creates a skeletal element given a blending function.
virtual	~TreeNormal ()
	Destroys a skeletal element.
virtual double	R (const Vector &) const
	Computes the squared Euclidean distance to the skeleton. More...
virtual Vector	Gradient (const Vector &) const
	Compute the gradient at a given point. More...
virtual void	IntensityGradient (const Vector &, double &, Vector &) const
	Compute the field value and the gradient of the field function at a given point in space. More...
virtual double	K (const Segment &) const
	Compute the Lipschitz constant on a segment. More...
virtual double	K (const RayStep &) const
	Compute the Lipschitz constant on a segment. More...
virtual double	K (const Sphere &) const
	Compute the Lipschitz constant inside a sphere. More...
Public Member Functions inherited from TreeElement
	TreeElement (BlendCompact *=nullptr)
	Creates a new element given a blending function.
virtual	~TreeElement ()
	Destroys an element. More...
double	K () const
	Returns the Lipschitz constant of the element. More...
double	K (const Box &) const
	Returns a local Lipschitz constant within a box domain. More...
double	K (const Ray &) const
	Returns a local Lipschitz constant along a ray. More...
TreeNode *	Cut (const Box &) const
	Cuts the node to simplify its structure inside a box. More...
Public Member Functions inherited from TreeNode
	TreeNode ()
	Create a virtual node of the Blob-Tree structure.
virtual	~TreeNode ()
	Destroys a node.
virtual TreeNode *	Blend (TreeNode *)
	Insert a blending node that blends the old and the new sub-tree together. More...
virtual TreeNode *	Union (TreeNode *)
	Insert a union node that unions the old and the new sub-tree together. More...
virtual TreeNode *	Difference (TreeNode *)
	Insert a difference node. More...
virtual TreeNode *	Translate (const Vector &)
	Insert a translation node. More...
virtual TreeNode *	Rotate (const Matrix &)
	Insert a rotation node. More...
virtual TreeNode *	Scale (const Vector &)
	Insert a scaling node. More...
Box	GetBox () const
	Return the bounding box of the node.
virtual void	SetThreshold (const double &)
	Set the threshold value. More...
virtual Color	GetMaterial (const Vector &, const Vector &=Vector::Null) const
	Gets the color of a node at a point. More...
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 Vector	Dichotomy (Vector, Vector, double, double, double, const double &=1.0e-4)
	Compute the intersection between the implicit surface and a segment. More...

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

Hollow box primitive.

This implementation is an optimized version of the general implementation of TreePolytope. The distance is assumed to be null inside the box. ,

Example of how to code a box primitive:

TreeNode* box=new TreeHollowBox(Vector(1,0,-2),Vector(3,2,1),new BlendCubic(2.0,1.0));

Constructor & Destructor Documentation

TreeHollowBox()

TreeHollowBox::TreeHollowBox	(	const Box &	box,
		BlendCompact *	blend
	)

Create a axis aligned hollow-box element.

Parameters

blend	Falloff function.
box	Box.

Member Function Documentation

Intensity()

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

virtual

Compute the intensity at a given point.

This function inlines the computation of the normal vector to the skeleton out of efficiency.

Parameters

p

Point.

Reimplemented from TreeNormal.

Normal()

Vector TreeHollowBox::Normal ( const Vector &  p ) const

virtual

Computes the vector distance between the box and a point in space.

Parameters

p

Point.

Implements TreeNormal.