outlines.h File Reference

#include "blobs.h"
#include "chop.h"
#include <math.h>

Go to the source code of this file.

Macros
#define	LARGE_DISTANCE   100000 /* Used for closest dist */
#define	MIN_BLOB_SIZE   10 /* Big units */
#define	MAX_ASPECT_RATIO   2.5 /* Widest character */
#define	same_point(p1, p2)
#define	dist_square(p1, p2)
#define	closest(test_p, p1, p2)
#define	edgept_dist(p1, p2)   (dist_square ((p1)->pos, (p2)->pos))
#define	is_exterior_point(edge, point)
#define	is_equal(p1, p2)   (((p1).x == (p2).x) && ((p1).y == (p2).y))
#define	is_on_line(p, p0, p1)
#define	within_range(x, x0, x1)   (((x0 <= x) && (x <= x1)) || ((x1 <= x) && (x <= x0)))

Macro Definition Documentation

closest

#define closest	(		test_p,
			p1,
			p2
	)

Value:

(p1 ?                                         \
        (p2 ?                                        \
        ((dist_square (test_p->pos, p1->pos) <      \
                dist_square (test_p->pos, p2->pos)) ?     \
        p1  :                                      \
        p2) :                                      \
        p1)  :                                      \
        p2)

Definition at line 71 of file outlines.h.

dist_square

#define dist_square	(		p1,
			p2
	)

Value:

((p2.x - p1.x) * (p2.x - p1.x) +            \
        (p2.y - p1.y) * (p2.y - p1.y))

Definition at line 60 of file outlines.h.

edgept_dist

#define edgept_dist	(		p1,
			p2
	)		(dist_square ((p1)->pos, (p2)->pos))

Definition at line 87 of file outlines.h.

is_equal

#define is_equal	(		p1,
			p2
	)		(((p1).x == (p2).x) && ((p1).y == (p2).y))

Definition at line 109 of file outlines.h.

is_exterior_point

#define is_exterior_point	(		edge,
			point
	)

Value:

(same_point (edge->prev->pos, point->pos)  ||          \
        same_point (edge->next->pos, point->pos)  ||          \
        (angle_change (edge->prev, edge, edge->next) -   \
        angle_change (edge->prev, edge, point) > 20))

Definition at line 97 of file outlines.h.

is_on_line

#define is_on_line	(		p,
			p0,
			p1
	)

Value:

(within_range ((p).x, (p0).x, (p1).x) &&  \
        within_range ((p).y, (p0).y, (p1).y))

Definition at line 120 of file outlines.h.

LARGE_DISTANCE

#define LARGE_DISTANCE   100000 /* Used for closest dist */

Definition at line 36 of file outlines.h.

MAX_ASPECT_RATIO

#define MAX_ASPECT_RATIO   2.5 /* Widest character */

Definition at line 38 of file outlines.h.

MIN_BLOB_SIZE

#define MIN_BLOB_SIZE   10 /* Big units */

Definition at line 37 of file outlines.h.

same_point

#define same_point	(		p1,
			p2
	)

Value:

((abs (p1.x - p2.x) < chop_same_distance) && \
        (abs (p1.y - p2.y) < chop_same_distance))

Definition at line 49 of file outlines.h.

within_range

#define within_range	(		x,
			x0,
			x1
	)		(((x0 <= x) && (x <= x1)) || ((x1 <= x) && (x <= x0)))

Definition at line 131 of file outlines.h.