curve_helper.cpp File Reference

Curve Helper File. More...

#include "curve_helper.h"
#include <algorithm>
#include <vector>

Macros
#define	ERR   1e-11

Functions
int	intersect (const Rect &r, const Point &p, const Vector &v)
int	intersect (const BezHull &bh, const Point &p, const Vector &v)
int	Clip (const Rect &r, const Point &p1, const Point &p2, Point *op1, Point *op2)
static void	clean_bez (const bezier< Point > &b, bezier< Point > &out)
static int	recurse_intersect (const CIntersect::SCurve &b, const Point &p1, int depthleft=10)
int	intersect (const bezier< Point > &b, const Point &p)
int	intersect_scurve (const CIntersect::SCurve &b, const Point &p)

Variables
const Real	ERROR = 1e-11

Detailed Description

Curve Helper File.

$Id$

Macro Definition Documentation

#define ERR   1e-11

Referenced by Clip(), and synfig::intersect().

Function Documentation

int intersect	(	const Rect &	r,
		const Point &	p,
		const Vector &	v
	)

References ERR.

Referenced by Warp::accelerated_cairorender(), Warp::accelerated_render(), synfig::Layer_PasteCanvas::accelerated_render(), and Rectangle::hit_check().

int intersect	(	const BezHull &	bh,
		const Point &	p,
		const Vector &	v
	)

References ERR, synfig::BezHull::p, and synfig::BezHull::size.

int Clip	(	const Rect &	r,
		const Point &	p1,
		const Point &	p2,
		Point *	op1,
		Point *	op2
	)

References ERR.

static void clean_bez ( const bezier< Point > &  b, bezier< Point > &  out  )

static

Referenced by intersect(), and synfig::CIntersect::operator()().

static int recurse_intersect ( const CIntersect::SCurve &  b, const Point &  p1, int  depthleft = 10  )

static

References ERROR, and synfig::intersect().

Referenced by intersect().

int intersect	(	const bezier< Point > &	b,
		const Point &	p
	)

References synfig::Bound(), clean_bez(), and recurse_intersect().

int intersect_scurve	(	const CIntersect::SCurve &	b,
		const Point &	p
	)

References synfig::Rect::expand(), and synfig::Rect::set_point().

Variable Documentation

const Real ERROR = 1e-11

Referenced by recurse_intersect().