TreeCylinder Class Reference

Cylinder primitive. ,. More...

#include <blobtree.h>

Inheritance diagram for TreeCylinder:

Public Member Functions
	TreeCylinder (const Vector &, const Vector &, const double &, BlendCompact *)
	Creates a cylinder element.
	TreeCylinder (const Vector &, const double &, const double &, BlendCompact *)
	Creates a vertical cylinder.
virtual	~TreeCylinder ()
	Destroy a cylinder element.
double	Intensity (const Vector &) const
	Computes the intensity at given point in space.
double	Omega (const Vector &) const
virtual TreeNode *	Copy () const
	Create a deep copy of a cylinder.
int	Memory () const
	Compute the size of a node.
double	K (const Ray &) const
	Returns a local Lipschitz constant along a ray.
TreeNode *	Translate (const Vector &)
	Translates a cylinder element.
TreeNode *	Rotate (const Matrix &)
	Rotates a cylinder element.
virtual QString	Show (int=0) const
	Show the tree hierarchy.
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.
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 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 *	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 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

Cylinder primitive. ,.

Constructor & Destructor Documentation

TreeCylinder() [1/2]

TreeCylinder::TreeCylinder ( const Vector & a, const Vector & b, const double & r, BlendCompact * blend )

explicit

Creates a cylinder element.

Parameters

a,b	End vertices of the axis.
r	Cylinder radius.
blend	Falloff function.

TreeCylinder() [2/2]

TreeCylinder::TreeCylinder ( const Vector & a, const double & h, const double & r, BlendCompact * blend )

explicit

Creates a vertical cylinder.

Parameters

a	Base vertex.
h	Height.
r	Cylinder radius.
blend	Falloff function.

Member Function Documentation

Intensity()

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

virtual

Computes the intensity at given point in space.

Parameters

p

Point.

Reimplemented from TreeNormal.

Omega()

double TreeCylinder::Omega ( const Vector & p ) const

virtual

Reimplemented from TreeNode.

K()

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

virtual

Returns a local Lipschitz constant along a ray.

Returns the Lipschitz constant of the element if argument ray intersects the element's bounding box.

Parameters

ray

The ray.

Check the intersection with the box, then with the capsule.

Implements TreeNode.

Translate()

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

virtual

Translates a cylinder element.

Parameters

t	Translation vector.

Reimplemented from TreeNode.

Rotate()

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

virtual

Rotates a cylinder 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.

Show()

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

virtual

Show the tree hierarchy.

Parameters

space

Number of spaces.

Reimplemented from TreeNode.