TreeRectangle Class Reference

Rectangle primitive. More...

#include <blobtree.h>

Inheritance diagram for TreeRectangle:

Public Member Functions
	TreeRectangle (const Vector &, const Vector &, const Vector &, BlendCompact *)
	Create a rectangle element. More...
	TreeRectangle (const Vector &, const double &, const double &, BlendCompact *)
	Create a axis aligned rectangle element. More...
virtual	~TreeRectangle ()
	Destroys a box element.
double	Intensity (const Vector &) const
	Compute the intensity at a given point in space. More...
virtual TreeNode *	Copy () const
	Creates a deep copy of a box element.
int	Memory () const
	Compute the size of a node.
TreeNode *	Rotate (const Matrix &)
	Rotates a rectangle element. More...
TreeNode *	Translate (const Vector &)
	Translates a rectangle node. Simply modify the coordinates of the rectangle and the bounding box. 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 *	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

Rectangle primitive.

This implementation is an optimized version of the general TreePoly class.

,

Example of how to code a rectangle primitive:

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

Constructor & Destructor Documentation

TreeRectangle() [1/2]

TreeRectangle::TreeRectangle	(	const Vector &	c,
		const Vector &	a,
		const Vector &	b,
		BlendCompact *	blend
	)

Create a rectangle element.

Parameters

c	Center.
a,b	Orthogonal axes of the rectangle.
blend	Falloff function.

TreeRectangle() [2/2]

TreeRectangle::TreeRectangle	(	const Vector &	c,
		const double &	a,
		const double &	b,
		BlendCompact *	blend
	)

Create a axis aligned rectangle element.

Parameters

c	Center.
a,b	Size.
blend	Falloff function.

Member Function Documentation

Intensity()

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

virtual

Compute the intensity at a given point in space.

Parameters

p

Point.

Reimplemented from TreeNormal.

Rotate()

TreeNode * TreeRectangle::Rotate ( const Matrix &  r )

virtual

Rotates a rectangle element.

Instead of inserting a rotation node in the tree, this member simply updates the vertices of the cylinder as well as its internal parameters.

Parameters

r	Rotation matrix.

Reimplemented from TreeNode.

Translate()

TreeNode * TreeRectangle::Translate ( const Vector &  t )

virtual

Translates a rectangle node. Simply modify the coordinates of the rectangle and the bounding box.

Parameters

t	Translation vector.

Reimplemented from TreeNode.