TreeCircleArc Class Reference

A circle arc skeletal element. More...

#include <blobtree.h>

Inheritance diagram for TreeCircleArc:

Public Member Functions
	TreeCircleArc (const Vector &, const Vector &, const Vector &, BlendCompact *)
	Creates a circular-arc element.
	TreeCircleArc (const CircleArc &, BlendCompact *)
	Creates a circular-arc element.
virtual	~TreeCircleArc ()
	Destroys a circle primitive.
virtual TreeNode *	Copy () const
	Creates a deep copy of a circle primitive.
int	Memory () const
	Compute the size of a node.
double	Intensity (const Vector &) const
	Computes the intensity at given point in space.
Public Member Functions inherited from TreeNormal
	TreeNormal (BlendCompact *=nullptr)
	Creates a skeletal element given a blending function.
virtual	~TreeNormal ()
	Destroys a skeletal element.
virtual Vector	Gradient (const Vector &) const
	Compute the gradient at a given point.
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.
virtual double	K (const Segment &) const
	Compute the Lipschitz constant on a segment.
virtual double	K (const RayStep &) const
	Compute the Lipschitz constant on a segment.
virtual double	K (const Sphere &) const
	Compute the Lipschitz constant inside a sphere.
Public Member Functions inherited from TreeElement
	TreeElement (BlendCompact *=nullptr)
	Creates a new element given a blending function.
virtual	~TreeElement ()
	Destroys an element.
double	K () const
	Returns the Lipschitz constant of the element.
double	K (const Box &) const
	Returns a local Lipschitz constant within a box domain.
double	K (const Ray &) const
	Returns a local Lipschitz constant along a ray.
TreeNode *	Cut (const Box &) const
	Cuts the node to simplify its structure inside a box.
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 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 void	SetThreshold (const double &)
	Set the threshold value.
virtual Color	GetMaterial (const Vector &, const Vector &=Vector::Null) const
	Gets the color of a node at a point.
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 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 TreeElement
BlendCompact *	blend = nullptr
	Falloff function.
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

A circle arc skeletal element.

Example of how to code a circular arc primitive:

TreeNode *arc=new TreeCircleArc(Vector(0.0,0.0,0.0),Vector(1.0,-1.0,1.0),Vector(0.0,2.0,-1.0),new BlendCubic(2.0,1.0));

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Constructor & Destructor Documentation

TreeCircleArc() [1/2]

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

Creates a circular-arc element.

The circular-arc is defined by three vertices that define a circle in the corresponding plane. As there are two possible arcs given three vertices, the arc type is defined by order of vertices which the orientation of the arc.

Parameters

a,b,c	Three vertices on the circle defining the circular arc abc.
blend	Falloff function.

TreeCircleArc() [2/2]

TreeCircleArc::TreeCircleArc	(	const CircleArc &	arc,
		BlendCompact *	blend )

Creates a circular-arc element.

Parameters

arc	Circle arc.
blend	Falloff function.

Member Function Documentation

Intensity()

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

virtual

Computes the intensity at given point in space.

Parameters

p

Point.

Reimplemented from TreeNormal.