Go::ParamGeomInt Class Reference
[Intersections]

This class is a base class providing an interface to the parametric "intersection objects". More...

#include <ParamGeomInt.h>

Inheritance diagram for Go::ParamGeomInt:


Public Member Functions
	ParamGeomInt (ParamGeomInt *parent=0)
	Constructor.
virtual	~ParamGeomInt ()
	Destructor.
virtual int	dimension () const=0
	The dimension of the geometric space.
virtual int	checkPeriodicity (int pardir) const
	Check if the object is periodic.
virtual void	subdivide (int pardir, double par, std::vector< boost::shared_ptr< ParamGeomInt > > &subdiv_objs, std::vector< boost::shared_ptr< ParamGeomInt > > &bd_objs)=0
	Subdivide the object in the specified parameter direction and parameter value.
virtual CompositeBox	compositeBox () const=0
	Return the CompositeBox for the parametric object.
virtual DirectionCone	directionCone () const=0
	A cone which contains all normals of the object.
bool	coneLargerThanPi ()
	Check if the associated direction cone has an angle larger than pi.
virtual DirectionCone	reducedDirectionCone (bool reduce_at_bd[4], double epsge) const
	Try to make a smaller direction cone.
virtual void	getBoundaryObjects (std::vector< boost::shared_ptr< BoundaryGeomInt > > &bd_objs)=0
	Return the boundary objects of this object.
virtual int	getMeshSize (int dir)=0
	Return the size of the geometric sample mesh in the specified direction.
virtual double	paramFromMesh (int dir, int idx)=0
	Return the corresponding mesh parameter.
virtual std::vector< double >::iterator	getMesh ()=0
	Return the geometric sample mesh for the parametric function.
int	nmbBdObj () const
	Return the number of boundary objects.
BoundaryGeomInt *	getBoundaryObject (int bd_idx) const
	Return the specified boundary object.
virtual int	isDegenerate (double epsge, int dir)
	Return true if the object is degenerate in the specified direction.
virtual bool	isDegenerate (double epsge, int dir, double *par)=0
	Return true if the object is degenerate in the specified direction and parameter.
virtual bool	isLinear (double epsge)
	Check the linearity of the object.
virtual bool	isSpline ()=0
	Return whether or not the object is a spline.
virtual double	getOptimizedConeAngle (Point &axis1, Point &axis2)=0
	We try to treat problems which will never result in a simple case by shrinking the domain slightly, resulting in smaller cones.
Protected Attributes
std::vector< boost::shared_ptr< BoundaryGeomInt > >	boundary_obj_

Detailed Description

This class is a base class providing an interface to the parametric "intersection objects".

Definition at line 58 of file ParamGeomInt.h.

Constructor & Destructor Documentation

Go::ParamGeomInt::ParamGeomInt ( ParamGeomInt * parent = 0 ) [inline]

Constructor.

Parameters:

parent

the parent to this intersection object.

Definition at line 62 of file ParamGeomInt.h.

Member Function Documentation

virtual int Go::ParamGeomInt::checkPeriodicity ( int pardir ) const [inline, virtual]

Check if the object is periodic.

Analyze periodicity of curve based on number of repeating knots and control points. The return value is -1 if the curve ends are disjoint, otherwise k if cv is C^k continuous. These are sufficient but not necessary conditions for periodicity, so it is possible that a higher degree of periodicity exists. Should not be called on this layer, should be overruled by inherited class.

Parameters:

pardir

the parameter direction in question.

Returns:: -1 if the curve ends are disjoint, or k if the curve is proven to be C^k continuous.

Reimplemented in Go::ParamCurveInt, Go::ParamSurfaceInt, Go::SplineCurveInt, and Go::SplineSurfaceInt.

Definition at line 80 of file ParamGeomInt.h.

virtual void Go::ParamGeomInt::subdivide	(	int	pardir,
		double	par,
		std::vector< boost::shared_ptr< ParamGeomInt > > &	subdiv_objs,
		std::vector< boost::shared_ptr< ParamGeomInt > > &	bd_objs
	)			`[pure virtual]`

Subdivide the object in the specified parameter direction and parameter value.

Parameters:

	pardir	direction in which to subdive. Indexing starts at 0.
	par	parameter in which to subdivide.
	subdiv_objs	The subparts of this object. Of the same geometric dimension as this object.
	bd_objs	the boundaries between the returned subdiv_objs. Of geometric dimension 1 less than this object.

Implemented in Go::ParamCurveInt, Go::ParamPointInt, and Go::ParamSurfaceInt.

virtual CompositeBox Go::ParamGeomInt::compositeBox ( ) const [pure virtual]

Return the CompositeBox for the parametric object.

Returns:: The compositeBox for the parametric object.

Implements Go::ParamObjectInt.

Implemented in Go::ParamCurveInt, Go::ParamPointInt, and Go::ParamSurfaceInt.

virtual DirectionCone Go::ParamGeomInt::directionCone ( ) const [pure virtual]

A cone which contains all normals of the object.

Returns:: A cone which contains all normals of the object.

Implemented in Go::ParamCurveInt, Go::ParamPointInt, Go::ParamSurfaceInt, and Go::SplineSurfaceInt.

virtual DirectionCone Go::ParamGeomInt::reducedDirectionCone	(	bool	reduce_at_bd[4],
		double	epsge
	)			const `[virtual]`

Try to make a smaller direction cone.

Parameters:

	reduce_at_bd	indicates which boundaries the reduction attempt should be made
	epsge	the geometric tolerancedefining degeneracy

Returns:: A direction cone. This is either the same cone or a smaller one.

Reimplemented in Go::SplineSurfaceInt.

virtual void Go::ParamGeomInt::getBoundaryObjects ( std::vector< boost::shared_ptr< BoundaryGeomInt > > & bd_objs ) [pure virtual]

Return the boundary objects of this object.

Parameters:

bd_objs

the boundary objects of this object.

Implemented in Go::ParamCurveInt, Go::ParamPointInt, Go::ParamSurfaceInt, and Go::SplineSurfaceInt.

virtual int Go::ParamGeomInt::getMeshSize ( int dir ) [pure virtual]

Return the size of the geometric sample mesh in the specified direction.

Parameters:

dir

the parameter direction in question. Indexing starts at 0.

Implemented in Go::ParamCurveInt, Go::ParamPointInt, Go::ParamSurfaceInt, Go::SplineCurveInt, and Go::SplineSurfaceInt.

virtual double Go::ParamGeomInt::paramFromMesh	(	int	dir,
		int	idx
	)			`[pure virtual]`

Return the corresponding mesh parameter.

Parameters:

	dir	the parameter direction in question. Indexing starts at 0.
	idx	the mesh idx in the specified direction. Indexing starts at 0.

Implemented in Go::ParamCurveInt, Go::ParamPointInt, Go::ParamSurfaceInt, Go::SplineCurveInt, and Go::SplineSurfaceInt.

int Go::ParamGeomInt::nmbBdObj ( ) const [inline]

Return the number of boundary objects.

Returns:: The number of boundary objects.

Definition at line 143 of file ParamGeomInt.h.

References boundary_obj_.

BoundaryGeomInt* Go::ParamGeomInt::getBoundaryObject ( int bd_idx ) const [inline]

Return the specified boundary object.

Parameters:

bd_idx

index of the boundary object.

Returns:: The boundary object.

Definition at line 149 of file ParamGeomInt.h.

References boundary_obj_.

virtual int Go::ParamGeomInt::isDegenerate	(	double	epsge,
		int	dir
	)			`[inline, virtual]`

Return true if the object is degenerate in the specified direction.

Specialized for surface

Parameters:

	epsge	the geometric tolerance defining degeneracy.
	dir	the parameter direction in question.

Reimplemented in Go::ParamSurfaceInt.

Definition at line 159 of file ParamGeomInt.h.

virtual bool Go::ParamGeomInt::isDegenerate	(	double	epsge,
		int	dir,
		double *	par
	)			`[pure virtual]`

Return true if the object is degenerate in the specified direction and parameter.

Parameters:

	epsge	the geometric tolerance defining degeneracy.
	dir	the parameter direction in question.
	par	the parameter in which to evaluate. Size of array should be equal to numParams().

Reimplemented from Go::ParamObjectInt.

Implemented in Go::ParamCurveInt, Go::ParamPointInt, and Go::ParamSurfaceInt.

virtual bool Go::ParamGeomInt::isSpline ( ) [pure virtual]

Return whether or not the object is a spline.