Detailed Description

Space polygon implements a polygon. It works best for convex polygon. In 3D, and additional HEIGHT can be specified to describe a generalized cylinder of axis Z, that has the 2D polygon as cross-section.

The coordinates of the polygon are read from a file.

polygon file_name HEIGHT

Inheritance diagram for SpacePolygon:

Public Member Functions
	SpacePolygon (const SpaceProp *, std::string const &file)
	creator

	~SpacePolygon ()
	destructor

Vector	extension () const
	maximum extension along each axis

real	volume () const
	the volume inside

bool	inside (const real point[]) const
	true if the point is inside the Space

void	project (const real point[], real proj[]) const
	project point on the closest edge of the Space

void	setInteraction (Vector const &pos, PointExact const &, Meca &, real stiff) const
	apply a force directed towards the edge of the Space More...

void	setInteraction (Vector const &pos, PointExact const &, real rad, Meca &, real stiff) const
	apply a force directed towards the edge of the Space

void	resize ()
	update since length have changed More...

bool	display () const
	OpenGL display function, return true is display was done.

Public Member Functions inherited from Space
	Space (const SpaceProp *p)
	constructor

virtual	~Space ()
	destructor

unsigned int	nbLengths () const
	number of dimensions defined by the user

real	length (unsigned int d) const
	return dimension d

real	length2 (unsigned int d) const
	return double dimension d

real	lengthSqr (unsigned int d) const
	return squared dimension d

void	readLengths (const std::string &)
	read dimensions from a stream

void	checkLengths (unsigned int required, bool positive) const
	check that required lengths have been specified More...

void	resize (unsigned int d, real v)
	change dimension d to v, and update derived variables (this calls resize())

virtual bool	allInside (const real center[], real rad) const
	true if a sphere (center, radius) is entirely inside this Space More...

virtual bool	allOutside (const real center[], real rad) const
	true if a sphere (center, radius) is entirely outside this Space More...

bool	outside (const real point[]) const
	true if point is outside this Space ( defined as !inside(point) )

void	project (const real point[], real proj[], real rad) const
	project point on this Space deflated by radius More...

void	project (real point[]) const
	project point on edge of this Space, and return the result in point

real	distanceToEdgeSqr (const real point[]) const
	the square of the distance to the edge of this Space

real	distanceToEdge (const real point[]) const
	the distance to the edge, always positive

real	signedDistanceToEdge (const real point[]) const
	the distance to the edge, positive if point is outside, and negative if inside

void	bounceInside (real w[]) const
	bounce the object off the wall to put it back inside More...

virtual Vector	normalToEdge (const real point[]) const
	a Vector perpendicular to the space edge at point, directed towards the outside More...

Vector	randomPlace () const
	a random position in the volume More...

virtual Vector	randomPlaceNearEdge (real rad) const
	a random position located at most at distance radius from the edge More...

Vector	randomPlaceOnEdge (real rad) const
	a random position located on the edge More...

virtual real	estimateVolume (unsigned long cnt) const
	estimate Volume using a poor Monte-Carlo method with cnt trials More...

virtual void	step ()
	one Monte-Carlo simulation step

virtual void	setInteractions (Meca &) const
	add interactions to a Meca

Tag	tag () const
	return unique character identifying the class

const Property *	property () const
	return Object Property

virtual void	read (InputWrapper &, Simul &)
	read from file

virtual void	write (OutputWrapper &) const
	write to file

Space *	next () const
	a static_cast<> of Node::next()

Space *	prev () const
	a static_cast<> of Node::prev()

void	displaySection (int dim, real pos, real step) const
	display the outline of a section of the box

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 Vector	position () const
	return the position in space of the object

virtual void	setPosition (Vector const &)
	move object to specified position More...

virtual bool	translatable () const
	true if object accepts translations (default=false)

virtual void	translate (Vector const &)
	move the object ( position += given vector ) More...

virtual bool	rotatable () const
	true if object accepts rotations (default=false)

virtual void	rotate (Rotation const &)
	rotate the object around the origin of coordinates More...

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...

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...

Public Attributes inherited from Space
const SpaceProp *	prop
	parameters

Static Public Attributes inherited from Space
static const Tag	TAG = 'e'
	a unique character identifying the class

Static Public Attributes inherited from Object
static const Tag	TAG = 'v'
	Object::TAG = 'v' represents the 'void' pointer.

Protected Attributes inherited from Space
unsigned int	nLength
	number of dimensions defined in mLength[]

real	mLength [DMAX]
	dimensions that define the geometry

real	mLength2 [DMAX]
	double of each dimension

real	mLengthSqr [DMAX]
	square of each dimension

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()

Static Protected Attributes inherited from Space
static const unsigned int	DMAX = 8
	max number of dimensions

Member Function Documentation

void resize ( )

virtual

recalculate bounding box, volume and points offsets that are used to project

Reimplemented from Space.

void setInteraction	(	Vector const &	pos,
		PointExact const &	pe,
		Meca &	meca,
		real	stiff
	)		const

virtual

The current procedure tests the model-points of fibers against the segments of the polygon. This fails for non-convext polygon since the re-entrant corners can intersect the fibers.

Todo:: Also project re-entrant polygon corners on the segments of the Fiber.

Reimplemented from Space.

Detailed Description

Public Member Functions

Additional Inherited Members

Member Function Documentation