Go::InterpolatedIntersectionCurve Class Reference
[Intersections]

IntersectionCurve that is defined by Hermite interpolation of a number of guidepoints. More...

#include <IntersectionCurve.h>

Inheritance diagram for Go::InterpolatedIntersectionCurve:

List of all members.

Public Member Functions
virtual	~InterpolatedIntersectionCurve ()
virtual void	refine (const double &pos_tol, const double &angle_tol)
	Refine the curve (which means to increase the number of IntersectionPoint s defining it), so that the curve matches a specific positional and angle tolerance.
virtual boost::shared_ptr< ParamCurve >	getCurve () const
	Get out a (shared) pointer to a parametric curve that approximates this IntersectionCurve.
virtual boost::shared_ptr< ParamCurve >	getParamCurve (int obj_nmb) const
	Get out a (shared) pointer to the curve in the parametric plane of the first or second object.
virtual bool	isIsocurve () const
	Determine if the IntersectionCurve is in fact representing an isoparametric intersection.
virtual bool	isDegenerated () const
	Determine if the IntersectionCurve is in fact a degenerated curve (a single point in space).
virtual void	getParamSpan (double &start, double &end) const
	Get the start and end value for the parametric span of the IntersectionCurve.
virtual void	evaluateAt (double pval, Point &pos, Point &tan)
	Evaluate the IntersectionCurve at parameter value pval.
virtual bool	getGuidePointTangent (boost::shared_ptr< IntersectionPoint > pt, Point &tan, int type) const
	Get the tangent of a guidepoint that we know lies on the curve (just using the getTangent() function of the guidepoint can be deceiving, as it is not necessarily unique).
Friends
template<class iterator>
boost::shared_ptr< IntersectionCurve >	constructIntersectionCurve (const iterator begin, const iterator end)

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Detailed Description

IntersectionCurve that is defined by Hermite interpolation of a number of guidepoints.

Definition at line 389 of file IntersectionCurve.h.

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Member Function Documentation

virtual void Go::InterpolatedIntersectionCurve::refine	(	const double &	pos_tol,
		const double &	angle_tol
	)			[virtual]

Refine the curve (which means to increase the number of IntersectionPoint s defining it), so that the curve matches a specific positional and angle tolerance.

Parameters:

	pos_tol	the positional tolerance that the curve should match after refinement.
	angle_tol	the angular tolerance that the tangent of the curve should match after refinement.

Implements Go::IntersectionCurve.

virtual boost::shared_ptr<ParamCurve> Go::InterpolatedIntersectionCurve::getParamCurve

(

int

obj_nmb

)

const [virtual]

Get out a (shared) pointer to the curve in the parametric plane of the first or second object.

Should only be called when the concerned object is 2-parametric.

Parameters:

obj_nmb

should be either 1 or 2, depending on whether you want to get the parametric curve in object 1 or object 2.

Returns:

a shared pointer to a curve that approximates the intersection curve in the parametric domain of the specified object.

Implements Go::IntersectionCurve.

virtual bool Go::InterpolatedIntersectionCurve::isIsocurve

(

)

const [inline, virtual]

Determine if the IntersectionCurve is in fact representing an isoparametric intersection.

Returns:

'true' if the IntersectionCurve is part of an isocurve for one of the objects, 'false' otherwise.

Implements Go::IntersectionCurve.

Definition at line 401 of file IntersectionCurve.h.

virtual bool Go::InterpolatedIntersectionCurve::isDegenerated

(

)

const [inline, virtual]

Determine if the IntersectionCurve is in fact a degenerated curve (a single point in space).

Returns:

'true' if the IntersectionCurve is degenerated. 'false' otherwise.

Implements Go::IntersectionCurve.

Definition at line 404 of file IntersectionCurve.h.

virtual void Go::InterpolatedIntersectionCurve::getParamSpan	(	double &	start,
		double &	end
	)			const [inline, virtual]

Get the start and end value for the parametric span of the IntersectionCurve.

Return values:

	start	upon function return this variable will contain the start value of the parametric span.
	end	upon function return this variable will contain the end value of the parametric span.

Implements Go::IntersectionCurve.

Definition at line 407 of file IntersectionCurve.h.

virtual void Go::InterpolatedIntersectionCurve::evaluateAt	(	double	pval,
		Point &	pos,
		Point &	tan
	)			[virtual]

Evaluate the IntersectionCurve at parameter value pval.

Its position at this parameter value will be returned in pos and its tangent direction will be returned in tan.

Parameters:

pval

the parameter value for which to evaluate the IntersectionCurve. It should be within the parametric span (which can be obtained from GetParamSpan().

Return values:

pos

the calculated position of the point on the curve at parameter pval.

Parameters:

tan

the calculated tangent of the curve at parameter pval.

Implements Go::IntersectionCurve.

virtual bool Go::InterpolatedIntersectionCurve::getGuidePointTangent	(	boost::shared_ptr< IntersectionPoint >	pt,
		Point &	tan,
		int	type
	)			const [virtual]

Get the tangent of a guidepoint that we know lies on the curve (just using the getTangent() function of the guidepoint can be deceiving, as it is not necessarily unique).

Parameters:

	pt	shared pointer to the guidepoint. It is supposed to be part of the definition of the curve.
	type	specifies what kind of tangent the user wants. '1' means the parameter plane tangent for the first object. '2' means the parameter plane tangent for the second object. Other values of 'type' means the tangent in 3D space.

Return values:

tan

the requested tangent

Returns:

'true' if a tangent was found (i.e. pt was indeed a guidepoint of the IntersectionCurve). In the opposite case, 'false' is returned.

Reimplemented from Go::IntersectionCurve.

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The documentation for this class was generated from the following file:

• IntersectionCurve.h

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