Aster Class Reference

Detailed Description

The parameters are defined in AsterProp.

Each Fiber is attached to two points on the Solid:

• a primary point that is tied to the end of the Fiber
• a secondary point that is tied to the Fiber at some distance from the its end.

Together they link the Fiber to the Solid, both in position and direction. Their stiffness is defined in AsterProp::stiffness. To hold N fibers in different directions, the Aster uses multiple anchoring points. How they are distributed on the Solid depends on the dimensionality, and on:

• aster_radius = AsterProp::radius[0] + AsterProp::radius[1]
• inner_radius = AsterProp::radius[1]

In short:

1. If inner_radius == 0:
   • The Solid has one primary point, located in the center.
   • in 1D, only two secondary points are used: left and right,
   • in 2D, N secondary points are distributed on a circle of radius aster_radius.
   • in 3D, N secondary points are distributed on the surface of a sphere of radius aster_radius, using PointsOnSphere.
2. If inner_radius > 0:
   • the secondary points are distributed as if inner_radius==0,
   • an equal number of primary points are obtained by scaling the secondary points, to bring them at distance inner_radius from the center.

The distribution of the points could easily be changed to create non-isotropic fiber arrangements.

Inheritance diagram for Aster:

Public Member Functions
	Aster (AsterProp const *p)
	constructor
virtual	~Aster ()
	destructor
ObjectList	build (Glossary &)
	construct all the dependent Objects of the Organizer
Solid *	solid () const
	return the scaffolding Solid
Vector	position () const
	return the center of the Solid
Fiber *	fiber (unsigned int n) const
	return Fiber n
void	step ()
	perform one Monte-Carlo step
void	setInteractions (Meca &) const
	add interactions to the Meca
unsigned int	nbLinks () const
	number of connections between the sphere() and fiber()
Vector	posLink1 (unsigned int ii) const
	the position on the Sphere to which Fiber ii is attached
Vector	posLink2 (unsigned int ii) const
	the position of the Fiber ii which is attached
PointDisp *	pointDisp () const
	display parameters
Tag	tag () const
	return unique character identifying the class
const Property *	property () const
	return Object Property
void	read (InputWrapper &, Simul &)
	read from IO
void	write (OutputWrapper &) const
	write to IO
Public Member Functions inherited from Organizer
	Organizer ()
	default constructor
virtual	~Organizer ()
	destructor
unsigned int	nbOrganized () const
	number of objects currently organized
Mecable *	organized (unsigned int n) const
	return Mecable at index n
void	grasp (Mecable *)
	add Mecable at end of list
void	grasp (Mecable *, unsigned int)
	add Mecable at index n
void	goodbye (Buddy *)
	handles the disapearance of one of the organized object
virtual Vector	positionP (unsigned int) const
	return the average of object->posP(0)
virtual void	translate (Vector const &T)
	move all associated objects
virtual void	rotate (Rotation const &T)
	transform all associated objects
Organizer *	next () const
	a static_cast<> of Node::next()
Organizer *	prev () const
	a static_cast<> of Node::prev()
Public Member Functions inherited from Object
	Object ()
	constructor
std::string	reference () const
	concatenation of [ tag(), property()->index(), number() ] in plain ascii More...
void	writeReference (OutputWrapper &) const
	write a reference that identifies the Object uniquely More...
void	writeReference (OutputWrapper &, Tag tag) const
	write a reference, but using the provided Tag More...
int	mark () const
	birth mark value
void	mark (int m)
	set birth mark
int	fleck () const
	fleck value (not stored in trajectory files)
void	fleck (int f) const
	set fleck (the value is not stored in trajectory files)
Object *	next () const
	extends Node::next(), with a cast to preserve type
Object *	prev () const
	extends Node::prev(), with a cast to preserve type
Public Member Functions inherited from Node
	Node ()
	constructor set as unlinked
virtual	~Node ()
	destructor More...
bool	linked () const
	true if Node is linked
Node *	next () const
	the next Node in the list, or zero if this is last
Node *	prev () const
	the previous Node in the list, or zero if this is first
NodeList *	list () const
	the list where the object is linked, or zero
ObjectSet *	objset () const
	return associated ObjectSet
Public Member Functions inherited from Inventoried
	Inventoried ()
	initialize (name=0)
	~Inventoried ()
	destructor
void	number (Number n)
	change the serial number
Number	number () const
	serial number : a integer identifier, unique within each class
Public Member Functions inherited from Movable
	Movable ()
	constructor
virtual	~Movable ()
	destructor
virtual void	setPosition (Vector const &)
	move object to specified position More...
virtual bool	translatable () const
	true if object accepts translations (default=false)
virtual bool	rotatable () const
	true if object accepts rotations (default=false)
virtual void	rotateP (Rotation const &)
	rotate the object around its current position More...
virtual void	foldPosition (Modulo const *)
	perform modulo for periodic boundary conditions More...

Public Attributes
AsterProp const *	prop
	Property.

Static Public Attributes
static const Tag	TAG = 'a'
	a unique character identifying the class
Static Public Attributes inherited from Object
static const Tag	TAG = 'v'
	Object::TAG = 'v' represents the 'void' pointer.

Additional Inherited Members
Static Public Member Functions inherited from Object
static std::string	strReference (char, int, Number, int)
	build a string reference by concatenating (tag, property_index, number, mark) More...
static void	readReference (InputWrapper &, int &, Number &, int &, char pretag)
	read a reference (property_index, number, mark) from input More...
static void	writeNullReference (OutputWrapper &)
	write a reference that does not refer to any Object
Static Public Member Functions inherited from Movable
static Vector	readPrimitive (std::istream &, const Space *)
	read a position specified with primitives, such as 'circle 5', etc. More...
static Vector	readPosition (std::istream &, const Space *)
	read a position in space More...
static Vector	readDirection (std::istream &, const Vector &, const Space *)
	read an orientation, and return a normalized vector More...
static Rotation	readRotation (std::istream &, const Vector &, const Space *)
	read a rotation specified in is, at position pos More...
Protected Attributes inherited from Node
Node *	nNext
	the next Node in the list
Node *	nPrev
	the previous Node in the list
Protected Attributes inherited from Inventoried
Number	nNumber
	object identifier, unique within the class defined by tag()