TreeCloneFrame Class Reference

A simple instancing node. More...

#include <blobtree.h>

Inheritance diagram for TreeCloneFrame:

Public Member Functions
	TreeCloneFrame (TreeNode *, const Frame &)
	Creates an virtual clone of the subtree, using a frame.
virtual	~TreeCloneFrame ()
	Destroys the subtree.
double	Intensity (const Vector &) const
	Compute the field value.
Vector	Gradient (const Vector &) const
	Compute the gradient of the field function.
virtual TreeNode *	Copy () const
	Creates a deep copy of the node.
double	K () const
	Computes the Lipschitz constant of the sub-tree.
double	K (const Box &) const
	Computes the Lipschitz constant of the sub-tree whithin the argument box.
double	K (const Ray &) const
	Computes the Lipschitz constant along a ray.
double	K (const Segment &) const
	Computes the Lipschitz constant.
double	K (const RayStep &) const
	Computes the Lipschitz constant.
double	K (const Sphere &) const
	Computes the Lipschitz constant.
Color	GetMaterial (const Vector &, const Vector &=Vector::Null) const
	Computes the texture of an alpha-node. Simply scales the texture parameters.
TreeNode *	Cut (const Box &) const
	Cuts the node to simplify its structure inside a box.
virtual int	Memory () const
	Compute the size of the sub-tree.
virtual QString	Show (int=0) const
	Show the tree hierarchy.
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 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.
Box	GetBox () const
	Return the bounding box of the node.
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
Frame	frame = Frame::Id
	Other frame.
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

A simple instancing node.

This node has the same behaviour as a TreeUnion combining the subtree with a copy transformed using a TreeFrame operator, however it is more memory efficient.

Because it uses the Union operator, it should not be used with primitives with negative falloff fields.

TreeNode* node; // Sub-tree
Frame frame;  // Frame
TreeNode* union=new TreeUnion(node,new TreeFrame(node->Copy(),frame)); // Memory intensive union
TreeNode* clone=new TreeCloneFrame(node,frame); // Inexpensive clone

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Constructor & Destructor Documentation

TreeCloneFrame()

TreeCloneFrame::TreeCloneFrame ( TreeNode * node, const Frame & f )

explicit

Creates an virtual clone of the subtree, using a frame.

Parameters

node	Child node.
f	Frame.

Member Function Documentation

Intensity()

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

virtual

Compute the field value.

Parameters

p

Point.

Implements TreeNode.

Gradient()

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

virtual

Compute the gradient of the field function.

Parameters

p

Point.

Reimplemented from TreeNode.

K() [1/5]

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

virtual

Computes the Lipschitz constant of the sub-tree whithin the argument box.

Parameters

b

The box.

Implements TreeNode.

K() [2/5]

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

virtual

Computes the Lipschitz constant along a ray.

Parameters

ray

The ray.

Implements TreeNode.

K() [3/5]

double TreeCloneFrame::K ( const Segment & segment ) const

virtual

Computes the Lipschitz constant.

Parameters

segment

The segment.

Reimplemented from TreeNode.

K() [4/5]

double TreeCloneFrame::K ( const RayStep & raystep ) const

virtual

Computes the Lipschitz constant.

Parameters

raystep

The segment.

Reimplemented from TreeNode.

K() [5/5]

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

virtual

Computes the Lipschitz constant.

Parameters

s	The sphere.

Reimplemented from TreeNode.

GetMaterial()

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

virtual

Computes the texture of an alpha-node. Simply scales the texture parameters.

Parameters

p	Point.
n	Normal.

Reimplemented from TreeNode.

Cut()

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

virtual

Cuts the node to simplify its structure inside a box.

This function breaks the cloning.

Parameters

b

The box.

Implements TreeNode.

Show()

QString TreeCloneFrame::Show ( int space = 0 ) const

virtual

Show the tree hierarchy.

Parameters

space

Number of spaces.

Reimplemented from TreeNode.