edges.c File Reference

#include <neatogen/neato.h>
#include <neatogen/mem.h>
#include <neatogen/info.h>
#include <neatogen/edges.h>
#include <math.h>

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Functions
void	edgeinit (void)
Edge *	gvbisect (Site *s1, Site *s2)
static void	doSeg (Edge *e, double x1, double y1, double x2, double y2)
void	clip_line (Edge *e)
void	endpoint (Edge *e, int lr, Site *s)

Variables
double	pxmin
double	pxmax
double	pymin
double	pymax
static Freelist	efl

Function Documentation

clip_line()

void clip_line

(

Edge *

e

)

Definition at line 69 of file edges.c.

References Edge::a, Edge::b, Edge::c, Site::coord, doSeg(), Edge::ep, NULL, pxmax, pxmin, pymax, pymin, s1(), Point::x, and Point::y.

Referenced by endpoint(), and voronoi().

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doSeg()

static void doSeg ( Edge *  e, double  x1, double  y1, double  x2, double  y2  )

static

Definition at line 61 of file edges.c.

References addVertex(), and Edge::reg.

Referenced by clip_line().

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edgeinit()

void edgeinit

(

void

)

Definition at line 22 of file edges.c.

References efl, and freeinit().

Referenced by cleanup(), and voronoi().

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endpoint()

void endpoint	(	Edge *	e,
		int	lr,
		Site *	s
	)

Definition at line 185 of file edges.c.

References clip_line(), deref(), efl, Edge::ep, le, makefree(), NULL, re, ref(), and Edge::reg.

Referenced by voronoi().

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gvbisect()

Edge * gvbisect	(	Site *	s1,
		Site *	s2
	)

Definition at line 27 of file edges.c.

References Site::coord, dx, dy, efl, getfree(), newedge(), NULL, ref(), s1(), Point::x, and Point::y.

Referenced by voronoi().

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Variable Documentation

efl

Freelist efl

static

Definition at line 20 of file edges.c.

Referenced by edgeinit(), endpoint(), and gvbisect().

pxmax

double pxmax

Definition at line 18 of file edges.c.

Referenced by clip_line(), increaseBoundBox(), and setBoundBox().

pxmin

double pxmin

Definition at line 18 of file edges.c.

Referenced by clip_line(), increaseBoundBox(), and setBoundBox().

pymax

double pymax

Definition at line 18 of file edges.c.

Referenced by clip_line(), increaseBoundBox(), and setBoundBox().

pymin

double pymin

Definition at line 18 of file edges.c.

Referenced by clip_line(), increaseBoundBox(), and setBoundBox().