class BalloonContour2DConstraint : public Constraint

a class corresponding to a force constraint where a spring force is added on a vertex attached to a fixed point

Inheritance:

Public Classes

class

MissingContour : public Exception Exception thrown when the constraint is created without any active contour constructor MissingContour (const std::string& from) constructor from a string

Public Fields

static const double

defaultForceRatio the default ratio used to define the balloon force

Public Methods

double	getForceRatio () const returns the force ratio
void	setForceRatio (const double _forceRatio) sets the force ratio of the ballon force
virtual void	apply () fonction apply called at every iteration

Public

	constructor BalloonContour2DConstraint (ActiveContour2D *c, double _forceRatio=defaultForceRatio) throw(MissingContour) create a balloon constraint
	destructor virtual ~BalloonContour2DConstraint (void) empty destructor

Private Fields

double	forceRatio the extent of the balloon force expressed as a percentage of the overall radius of the line
ActiveContour2D*	contour the contour on which is applied the constraint

class MissingContour: public Exception

Exception thrown when the constraint is created without any active contour

constructor

MissingContour(const std::string& from)

constructor from a string

Parameters:

from - a string indicating where the exception where thrown

static const double defaultForceRatio

the default ratio used to define the balloon force

double forceRatio

the extent of the balloon force expressed as a percentage of the overall radius of the line

ActiveContour2D* contour

the contour on which is applied the constraint

constructor

BalloonContour2DConstraint(ActiveContour2D *c, double _forceRatio=defaultForceRatio) throw(MissingContour)

create a balloon constraint

Throws:

MissingContour thrown when c is NULL

Parameters:

c - the contour on which the constraint applies
_forceRatio - the distance along the normal direction used to compute the external force

destructor

virtual ~BalloonContour2DConstraint(void)

empty destructor

double getForceRatio() const

returns the force ratio

void setForceRatio(const double _forceRatio)

sets the force ratio of the ballon force

virtual void apply()

fonction apply called at every iteration

alphabetic index hierarchy of classes

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