parametric_curve< C, V > Class Template Reference

#include <parametric_curve.hpp>

Inheritance diagram for parametric_curve< C, V >:

List of all members.

Public Types

typedef C Scalar
typedef use< point_def, C, V >
::Point Point
typedef curve< REF_OF(V) > Curve
typedef bounding_box< C,
REF_OF(V) > BoundingBox
typedef point_set< C,
3, REF_OF(V) >::PointIterator PointIterator

Public Member Functions

parametric_curve (void)
parametric_curve (const BoundingBox box)
virtual ~parametric_curve (void)
virtual double tmin (void) const =0
virtual double tmax (void) const =0
virtual void set_range (double tmin, double tmax)=0
virtual Point * eval (const double &t) const =0
virtual Point * operator() (double t) const
virtual void eval (Point &, Scalar) const =0
virtual void sample (PointIterator, int) const
virtual void sample (Point *, const Scalar *, int) const
virtual void subdivide (parametric_curve< C, V > *&a, parametric_curve< C, V > *&b, double t) const =0
virtual Seq< Point * > critical_points (void)=0
virtual Seq< Point * > extremal_points (void)=0
virtual Seq< Point * > singular_points (void)=0

Detailed Description

template<class C, class V>
class mmx::shape::parametric_curve< C, V >

Definition at line 44 of file parametric_curve.hpp.

Member Typedef Documentation

typedef bounding_box<C, REF_OF(V) > BoundingBox

Reimplemented in bspline_curve< K >, and rational_curve< C, V >.

Definition at line 49 of file parametric_curve.hpp.

typedef curve< REF_OF(V) > Curve

Definition at line 48 of file parametric_curve.hpp.

typedef use<point_def,C,V>::Point Point

Reimplemented in bspline_curve< K >, and rational_curve< C, V >.

Definition at line 47 of file parametric_curve.hpp.

typedef point_set<C,3, REF_OF(V) >::PointIterator PointIterator

Definition at line 50 of file parametric_curve.hpp.

typedef C Scalar

Reimplemented in rational_curve< C, V >.

Definition at line 46 of file parametric_curve.hpp.

Constructor & Destructor Documentation

parametric_curve ( void ) [inline]

Definition at line 52 of file parametric_curve.hpp.

00052 {} ;

parametric_curve ( const BoundingBox box ) [inline]

Definition at line 53 of file parametric_curve.hpp.

00053 : Curve(box) {}

virtual ~parametric_curve ( void ) [inline, virtual]

Definition at line 54 of file parametric_curve.hpp.

00054 {} ;

Member Function Documentation

virtual Seq<Point *> critical_points ( void ) [pure virtual]

Implemented in rational_curve< C, V >.

virtual void eval	(	Point &	,
		Scalar
	)			const `[pure virtual]`

Implemented in rational_curve< C, V >.

virtual Point* eval ( const double & t ) const [pure virtual]

Implemented in rational_curve< C, V >.

Referenced by parametric_curve< K >::operator()(), and parametric_curve< C, V >::sample().

virtual Seq<Point *> extremal_points ( void ) [pure virtual]

Implemented in rational_curve< C, V >.

virtual Point* operator() ( double t ) const [inline, virtual]

Definition at line 61 of file parametric_curve.hpp.

00061 { return this->eval(t); }

void sample	(	Point *	res,
		const Scalar *	t,
		int	n
	)			const `[inline, virtual]`

Definition at line 86 of file parametric_curve.hpp.

References parametric_curve< C, V >::eval().

00086                                                      {
00087   for ( Point * o = res; o != res + n; o++, t++  )
00088     this->eval(*o,*t);
00089 }

void sample	(	PointIterator	p,
		int	n
	)			const `[inline, virtual]`

Definition at line 76 of file parametric_curve.hpp.

References assert, parametric_curve< C, V >::eval(), parametric_curve< C, V >::tmax(), and parametric_curve< C, V >::tmin().

00076                                          {
00077   assert(n>1);
00078   Scalar h=(this->tmax() - this->tmin())/(n-1), t=tmin();
00079   for (int i=0; i<n; i++, p++) {
00080     this->eval(*p, t);   // SEGFAULT ?
00081     t+=h;
00082   }
00083 }