lib/common/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
Defines
#define	EPSILON   .0001
#define	ARROW_LENGTH   10.
#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_MOD_OPEN   (1<<8)
#define	ARR_MOD_INV   (1<<9)
#define	ARR_MOD_LEFT   (1<<10)
#define	ARR_MOD_RIGHT   (1<<11)
Functions
void	arrow_flags (Agedge_t *e, int *sflag, int *eflag)
double	arrow_length (edge_t *e, int flag)
int	arrowEndClip (edge_t *e, point *ps, int startp, int endp, bezier *spl, int eflag)
int	arrowStartClip (edge_t *e, point *ps, int startp, int endp, bezier *spl, int sflag)
boxf	arrow_bb (pointf p, pointf u, double arrowsize, int flag)
void	arrow_newgen (GVJ_t *job, emit_state_t emit_state, pointf p, pointf u, double arrowsize, double penwidth, int flag)
void	arrow_gen (GVJ_t *job, emit_state_t emit_state, point p, point u, double arrowsize, double penwidth, int flag)

---

Define Documentation

#define ARR_MOD_INV   (1<<9)

Definition at line 36 of file arrows.c.

#define ARR_MOD_LEFT   (1<<10)

Definition at line 37 of file arrows.c.

#define ARR_MOD_OPEN   (1<<8)

Definition at line 35 of file arrows.c.

#define ARR_MOD_RIGHT   (1<<11)

Definition at line 38 of file arrows.c.

#define ARR_TYPE_BOX   4

Definition at line 30 of file arrows.c.

#define ARR_TYPE_CROW   2

Definition at line 28 of file arrows.c.

#define ARR_TYPE_DIAMOND   5

Definition at line 31 of file arrows.c.

#define ARR_TYPE_DOT   6

Definition at line 32 of file arrows.c.

#define ARR_TYPE_NONE   (ARR_NONE)

Definition at line 26 of file arrows.c.

Referenced by arrow_flags().

#define ARR_TYPE_NORM   1

Definition at line 27 of file arrows.c.

Referenced by arrow_flags().

#define ARR_TYPE_TEE   3

Definition at line 29 of file arrows.c.

#define ARROW_LENGTH   10.

Definition at line 23 of file arrows.c.

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

#define EPSILON   .0001

Definition at line 20 of file arrows.c.

Referenced by arrow_bb(), and arrow_newgen().

---

Function Documentation

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

Definition at line 508 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 170 of file arrows.c.

References AG_IS_DIRECTED, agfindedge(), 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, Agnode_t::graph, Agedge_t::head, Agsym_t::index, arrowdir_t::sflag, streq, and Agedge_t::tail.

Referenced by arrow_flags().

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

Definition at line 586 of file arrows.c.

References arrow_newgen(), and P2PF.

double arrow_length	(	edge_t *	e,
		int	flag
	)

Definition at line 202 of file arrows.c.

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

Referenced by arrowEndClip(), and arrowStartClip().

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

Definition at line 546 of file arrows.c.

References ARROW_LENGTH, GVC_s::defaultlinestyle, obj_state_s::emit_state, EPSILON, GVJ_s::gvc, gvrender_begin_context(), gvrender_end_context(), gvrender_set_style(), GVJ_s::obj, pointf_s::x, and pointf_s::y.

Referenced by arrow_gen().

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

Definition at line 234 of file arrows.c.

References inside_t::a, arrow_length(), bezier_clip(), bezier::eflag, bezier::ep, inside_t::p, P2PF, PF2P, inside_t::r, and TRUE.

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

Definition at line 263 of file arrows.c.

References inside_t::a, arrow_length(), bezier_clip(), FALSE, inside_t::p, P2PF, PF2P, inside_t::r, bezier::sflag, and bezier::sp.