arrows.c File Reference

#include "render.h"

Include dependency graph for arrows.c:

Go to the source code of this file.

Data Structures
struct	arrowdir_t
struct	arrowname_t
struct	arrowtype_t

Macros
#define	EPSILON   .0001
#define	ARROW_LENGTH   10.
#define	NUMB_OF_ARROW_HEADS   4
#define	BITS_PER_ARROW   8
#define	BITS_PER_ARROW_TYPE   4
#define	ARR_TYPE_NONE   (ARR_NONE)
#define	ARR_TYPE_NORM   1
#define	ARR_TYPE_CROW   2
#define	ARR_TYPE_TEE   3
#define	ARR_TYPE_BOX   4
#define	ARR_TYPE_DIAMOND   5
#define	ARR_TYPE_DOT   6
#define	ARR_TYPE_CURVE   7
#define	ARR_TYPE_GAP   8
#define	ARR_MOD_OPEN   (1<<(BITS_PER_ARROW_TYPE+0))
#define	ARR_MOD_INV   (1<<(BITS_PER_ARROW_TYPE+1))
#define	ARR_MOD_LEFT   (1<<(BITS_PER_ARROW_TYPE+2))
#define	ARR_MOD_RIGHT   (1<<(BITS_PER_ARROW_TYPE+3))

Typedefs
typedef struct arrowdir_t	arrowdir_t
typedef struct arrowname_t	arrowname_t
typedef struct arrowtype_t	arrowtype_t

Functions
void	arrow_flags (Agedge_t *e, int *sflag, int *eflag)
double	arrow_length (edge_t *e, int flag)
int	arrowEndClip (edge_t *e, pointf *ps, int startp, int endp, bezier *spl, int eflag)
int	arrowStartClip (edge_t *e, pointf *ps, int startp, int endp, bezier *spl, int sflag)
void	arrowOrthoClip (edge_t *e, pointf *ps, int startp, int endp, bezier *spl, int sflag, int eflag)
boxf	arrow_bb (pointf p, pointf u, double arrowsize, int flag)
void	arrow_gen (GVJ_t *job, emit_state_t emit_state, pointf p, pointf u, double arrowsize, double penwidth, int flag)

Macro Definition Documentation

#define ARR_MOD_INV   (1<<(BITS_PER_ARROW_TYPE+1))

Definition at line 42 of file arrows.c.

#define ARR_MOD_LEFT   (1<<(BITS_PER_ARROW_TYPE+2))

Definition at line 43 of file arrows.c.

#define ARR_MOD_OPEN   (1<<(BITS_PER_ARROW_TYPE+0))

Definition at line 41 of file arrows.c.

#define ARR_MOD_RIGHT   (1<<(BITS_PER_ARROW_TYPE+3))

Definition at line 44 of file arrows.c.

#define ARR_TYPE_BOX   4

Definition at line 33 of file arrows.c.

#define ARR_TYPE_CROW   2

Definition at line 31 of file arrows.c.

#define ARR_TYPE_CURVE   7

Definition at line 36 of file arrows.c.

#define ARR_TYPE_DIAMOND   5

Definition at line 34 of file arrows.c.

#define ARR_TYPE_DOT   6

Definition at line 35 of file arrows.c.

#define ARR_TYPE_GAP   8

Definition at line 37 of file arrows.c.

#define ARR_TYPE_NONE   (ARR_NONE)

Definition at line 29 of file arrows.c.

Referenced by arrow_flags(), and arrow_gen().

#define ARR_TYPE_NORM   1

Definition at line 30 of file arrows.c.

Referenced by arrow_flags().

#define ARR_TYPE_TEE   3

Definition at line 32 of file arrows.c.

#define ARROW_LENGTH   10.

Definition at line 20 of file arrows.c.

Referenced by arrow_bb(), arrow_gen(), and arrow_length().

#define BITS_PER_ARROW   8

Definition at line 25 of file arrows.c.

Referenced by arrow_gen(), and arrow_length().

#define BITS_PER_ARROW_TYPE   4

Definition at line 27 of file arrows.c.

Referenced by arrow_length().

#define EPSILON   .0001

Definition at line 17 of file arrows.c.

Referenced by arrow_bb(), and arrow_gen().

#define NUMB_OF_ARROW_HEADS   4

Definition at line 22 of file arrows.c.

Referenced by arrow_gen(), and arrow_length().

Typedef Documentation

typedef struct arrowdir_t arrowdir_t

typedef struct arrowname_t arrowname_t

typedef struct arrowtype_t arrowtype_t

Function Documentation

boxf arrow_bb	(	pointf	p,
		pointf	u,
		double	arrowsize,
		int	flag
	)

Definition at line 691 of file arrows.c.

References ARROW_LENGTH, EPSILON, boxf::LL, MAX, MIN, boxf::UR, pointf_s::x, and pointf_s::y.

void arrow_flags	(	Agedge_t *	e,
		int *	sflag,
		int *	eflag
	)

Definition at line 198 of file arrows.c.

References agfindedge, aghead(), agisdirected(), agraphof(), agtail(), agxget(), ARR_TYPE_NONE, ARR_TYPE_NORM, arrow_flags(), arrowdir_t::dir, E_arrowhead, E_arrowtail, E_dir, ED_conc_opp_flag, arrowdir_t::eflag, arrowdir_t::sflag, and streq.

Referenced by arrow_flags().

void arrow_gen	(	GVJ_t *	job,
		emit_state_t	emit_state,
		pointf	p,
		pointf	u,
		double	arrowsize,
		double	penwidth,
		int	flag
	)

Definition at line 729 of file arrows.c.

References ARR_TYPE_NONE, ARROW_LENGTH, BITS_PER_ARROW, GVC_s::defaultlinestyle, obj_state_s::emit_state, EPSILON, GVJ_s::gvc, gvrender_set_penwidth(), gvrender_set_style(), NUMB_OF_ARROW_HEADS, GVJ_s::obj, pointf_s::x, and pointf_s::y.

double arrow_length	(	edge_t *	e,
		int	flag
	)

Definition at line 229 of file arrows.c.

References ARROW_LENGTH, BITS_PER_ARROW, BITS_PER_ARROW_TYPE, E_arrowsz, arrowtype_t::gen, late_double(), arrowtype_t::lenfact, NUMB_OF_ARROW_HEADS, and arrowtype_t::type.

Referenced by arrowEndClip(), arrowOrthoClip(), and arrowStartClip().

int arrowEndClip	(	edge_t *	e,
		pointf *	ps,
		int	startp,
		int	endp,
		bezier *	spl,
		int	eflag
	)

Definition at line 256 of file arrows.c.

References inside_t::a, arrow_length(), bezier_clip(), DIST2, bezier::eflag, bezier::ep, inside_t::p, inside_t::r, and TRUE.

void arrowOrthoClip	(	edge_t *	e,
		pointf *	ps,
		int	startp,
		int	endp,
		bezier *	spl,
		int	sflag,
		int	eflag
	)

Definition at line 323 of file arrows.c.

References arrow_length(), DIST, bezier::eflag, bezier::ep, bezier::sflag, bezier::sp, pointf_s::x, and pointf_s::y.

int arrowStartClip	(	edge_t *	e,
		pointf *	ps,
		int	startp,
		int	endp,
		bezier *	spl,
		int	sflag
	)

Definition at line 285 of file arrows.c.

References inside_t::a, arrow_length(), bezier_clip(), DIST2, FALSE, inside_t::p, inside_t::r, bezier::sflag, and bezier::sp.