lib/common/geom.c File Reference

#include "geom.h"
#include "geomprocs.h"

Include dependency graph for geom.c:

Go to the source code of this file.

Defines
#define	SMALL   0.0000000001
#define	dot(v, w)   (v.x*w.x+v.y*w.y)
Functions
box	mkbox (point p, point q)
boxf	mkboxf (pointf p, pointf q)
int	lineToBox (pointf p, pointf q, boxf b)
void	rect2poly (pointf *p)
point	cwrotatep (point p, int cwrot)
pointf	cwrotatepf (pointf p, int cwrot)
point	ccwrotatep (point p, int ccwrot)
pointf	ccwrotatepf (pointf p, int ccwrot)
box	flip_rec_box (box b, point p)
boxf	flip_rec_boxf (boxf b, pointf p)
double	ptToLine2 (pointf a, pointf b, pointf p)
int	line_intersect (pointf a, pointf b, pointf c, pointf d, pointf *p)

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Define Documentation

#define dot	(		v,
			w
	)		(v.x*w.x+v.y*w.y)

Definition at line 402 of file geom.c.

Referenced by line_intersect(), lu_solve(), power_iteration(), and norm().

#define SMALL   0.0000000001

Definition at line 387 of file geom.c.

Referenced by ptToLine2(), and line_intersect().

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Function Documentation

point ccwrotatep	(	point	p,
		int	ccwrot
	)

Definition at line 294 of file geom.c.

References point::x, point::y, cwrotatep(), and ccwrotatep().

Referenced by cwrotatep(), and ccwrotatep().

pointf ccwrotatepf	(	pointf	p,
		int	ccwrot
	)

Definition at line 322 of file geom.c.

References pointf_s::x, pointf_s::y, cwrotatepf(), and ccwrotatepf().

Referenced by cwrotatepf(), and ccwrotatepf().

point cwrotatep	(	point	p,
		int	cwrot
	)

Definition at line 238 of file geom.c.

References point::x, point::y, ccwrotatep(), and cwrotatep().

Referenced by cwrotatep(), and ccwrotatep().

pointf cwrotatepf	(	pointf	p,
		int	cwrot
	)

Definition at line 266 of file geom.c.

References pointf_s::x, pointf_s::y, ccwrotatepf(), and cwrotatepf().

Referenced by cwrotatepf(), and ccwrotatepf().

box flip_rec_box	(	box	b,
		point	p
	)		[inline]

Definition at line 350 of file geom.c.

References box::UR, point::x, point::y, and box::LL.

boxf flip_rec_boxf	(	boxf	b,
		pointf	p
	)

Definition at line 366 of file geom.c.

References boxf::UR, pointf_s::x, pointf_s::y, and boxf::LL.

int line_intersect	(	pointf	a,
		pointf	b,
		pointf	c,
		pointf	d,
		pointf *	p
	)

Definition at line 409 of file geom.c.

References dot, and SMALL.

int lineToBox	(	pointf	p,
		pointf	q,
		boxf	b
	)

Definition at line 91 of file geom.c.

References pointf_s::x, boxf::LL, boxf::UR, and pointf_s::y.

box mkbox	(	point	p,
		point	q
	)

Definition at line 27 of file geom.c.

References point::x, box::LL, box::UR, and point::y.

boxf mkboxf	(	pointf	p,
		pointf	q
	)

Definition at line 48 of file geom.c.

References pointf_s::x, boxf::LL, boxf::UR, and pointf_s::y.

double ptToLine2	(	pointf	a,
		pointf	b,
		pointf	p
	)

Definition at line 392 of file geom.c.

References pointf_s::x, pointf_s::y, and SMALL.

void rect2poly

(

pointf *

p

)

Definition at line 203 of file geom.c.

References pointf_s::x, and pointf_s::y.

Referenced by emit_map_rect().