Graphviz: lib/neatogen/constraint.c File Reference

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#include "config.h"
#include <cgraph/alloc.h>
#include <cgraph/list.h>
#include <common/geom.h>
#include <math.h>
#include <neatogen/neato.h>
#include <neatogen/adjust.h>
#include <stddef.h>
#include <stdbool.h>

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Data Structures
struct	nitem

struct	info

Macros
#define	SCALE 10

#define	SCALE2 (SCALE/2)

Typedefs
typedef struct nitem	nitem

typedef int(*	distfn) (box , box )

typedef int(*	intersectfn) (nitem , nitem )

Functions
static int	cmpitem (void item1, void item2)

static int	distY (box b1, box b2)

static int	distX (box b1, box b2)

static int	intersectX0 (nitem p, nitem q)

static int	intersectY0 (nitem p, nitem q)

static int	intersectY (nitem p, nitem q)

static int	intersectX (nitem p, nitem q)

static void	mapGraphs (graph_t g, graph_t cg, distfn dist)

static graph_t *	mkNConstraintG (graph_t g, Dt_t list, intersectfn intersect, distfn dist)

static graph_t *	mkConstraintG (Dt_t *list, intersectfn intersect, distfn dist)

static void	closeGraph (graph_t *cg)

static void	constrainX (graph_t g, nitem nlist, int nnodes, intersectfn ifn, int ortho)

static void	constrainY (graph_t g, nitem nlist, int nnodes, intersectfn ifn, int ortho)

static int	overlaps (nitem *p, int cnt)

static void	initItem (node_t n, nitem p, expand_t margin)

int	cAdjust (graph_t *g, int mode)

static int	sortf (const void x, const void y)

static double	compress (info *nl, int nn)

static pointf *	mkOverlapSet (info nl, size_t nn, size_t cntp)

static pointf	computeScaleXY (pointf *aarr, size_t m)

static double	computeScale (pointf *aarr, size_t m)

int	scAdjust (graph_t *g, int equal)

Variables
static Dtdisc_t	constr

Macro Definition Documentation

◆ SCALE

#define SCALE 10

Definition at line 23 of file constraint.c.

◆ SCALE2

#define SCALE2 (SCALE/2)

Definition at line 24 of file constraint.c.

Typedef Documentation

◆ distfn

typedef int(* distfn) (box *, box *)

Definition at line 36 of file constraint.c.

◆ intersectfn

typedef int(* intersectfn) (nitem *, nitem *)

Definition at line 37 of file constraint.c.

◆ nitem

typedef struct nitem nitem

Function Documentation

◆ cAdjust()

int cAdjust	(	graph_t *	g,
		int	mode
	)

Definition at line 555 of file constraint.c.

References agfstnode(), agnnodes(), agnxtnode(), AM_ORTHO, AM_ORTHO_YX, AM_ORTHOXY, AM_ORTHOYX, AM_PORTHO, AM_PORTHO_YX, AM_PORTHOXY, AM_PORTHOYX, constrainX(), constrainY(), free(), gv_calloc(), initItem(), intersectX(), intersectX0(), intersectY(), intersectY0(), ND_pos, nitem::np, overlaps(), nitem::pos, PS2INCH, SCALE, sepFactor(), point::x, and point::y.

Referenced by removeOverlapWith().

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◆ closeGraph()

static void closeGraph ( graph_t * cg )

static

Definition at line 372 of file constraint.c.

References agclose(), agfstnode(), agnxtnode(), cg(), free_list, ND_in, and ND_out.

Referenced by constrainX(), and constrainY().

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◆ cmpitem()

static int cmpitem	(	void *	item1,
		void *	item2
	)

static

Definition at line 39 of file constraint.c.

◆ compress()

static double compress	(	info *	nl,
		int	nn
	)

static

Definition at line 646 of file constraint.c.

References info::bb, info::ht2, OVERLAP, info::pos, info::wd2, pointf_s::x, and pointf_s::y.

Referenced by scAdjust().

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◆ computeScale()

static double computeScale	(	pointf *	aarr,
		size_t	m
	)

static

Definition at line 762 of file constraint.c.

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

Referenced by scAdjust().

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◆ computeScaleXY()

static pointf computeScaleXY	(	pointf *	aarr,
		size_t	m
	)

static

Definition at line 722 of file constraint.c.

References free(), gv_calloc(), scale(), sortf(), pointf_s::x, and pointf_s::y.

Referenced by scAdjust().

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◆ constrainX()

static void constrainX	(	graph_t *	g,
		nitem *	nlist,
		int	nnodes,
		intersectfn	ifn,
		int	ortho
	)

static

Definition at line 387 of file constraint.c.

References nitem::bb, cg(), closeGraph(), nitem::cnode, constr, delta, distX(), dtclose(), dtinsert, Dtobag, dtopen(), box::LL, mkConstraintG(), mkNConstraintG(), ND_rank, newpos(), nitem::pos, rank(), box::UR, nitem::val, and point::x.

Referenced by cAdjust().

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◆ constrainY()

static void constrainY	(	graph_t *	g,
		nitem *	nlist,
		int	nnodes,
		intersectfn	ifn,
		int	ortho
	)

static

Definition at line 425 of file constraint.c.

References agattr(), AGEDGE, agfstedge(), agfstnode(), AGNODE, agnxtedge(), agnxtnode(), agxset(), nitem::bb, cg(), closeGraph(), nitem::cnode, constr, delta, distY(), dtclose(), dtinsert, Dtobag, dtopen(), ED_minlen, box::LL, mkConstraintG(), mkNConstraintG(), ND_rank, newpos(), nitem::pos, rank(), box::UR, nitem::val, and point::y.

Referenced by cAdjust().

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◆ distX()

static int distX	(	box *	b1,
		box *	b2
	)

static

Definition at line 65 of file constraint.c.

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

Referenced by constrainX(), intersectX0(), and intersectY0().

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◆ distY()

static int distY	(	box *	b1,
		box *	b2
	)

static

Definition at line 60 of file constraint.c.

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

Referenced by constrainY(), intersectX0(), and intersectY0().

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◆ initItem()

static void initItem	(	node_t *	n,
		nitem *	p,
		expand_t	margin
	)

static

Definition at line 499 of file constraint.c.

References nitem::bb, expand_t::doAdd, box::LL, ND_height, ND_pos, ND_width, nitem::np, POINTS, nitem::pos, SCALE, SCALE2, box::UR, point::x, expand_t::x, point::y, and expand_t::y.

Referenced by cAdjust().

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◆ intersectX()

static int intersectX	(	nitem *	p,
		nitem *	q
	)

static

Definition at line 119 of file constraint.c.

References nitem::bb, box::LL, box::UR, and point::x.

Referenced by cAdjust().

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◆ intersectX0()

static int intersectX0	(	nitem *	p,
		nitem *	q
	)

static

Definition at line 76 of file constraint.c.

References nitem::bb, distX(), distY(), box::LL, nitem::pos, box::UR, point::x, and point::y.

Referenced by cAdjust().

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◆ intersectY()

static int intersectY	(	nitem *	p,
		nitem *	q
	)

static

Definition at line 114 of file constraint.c.

References nitem::bb, box::LL, box::UR, and point::y.

Referenced by cAdjust().

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◆ intersectY0()

static int intersectY0	(	nitem *	p,
		nitem *	q
	)

static

Definition at line 98 of file constraint.c.

References nitem::bb, distX(), distY(), box::LL, nitem::pos, box::UR, point::x, and point::y.

Referenced by cAdjust().

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◆ mapGraphs()

static void mapGraphs	(	graph_t *	g,
		graph_t *	cg,
		distfn	dist
	)

static

Definition at line 126 of file constraint.c.

References agbindrec(), agedge(), agfstnode(), agfstout(), aghead, agnxtnode(), agnxtout(), nitem::bb, cg(), nitem::cnode, delta, dist(), ED_minlen, ED_weight, elist_append, ND_alg, ND_in, ND_out, and NULL.

Referenced by mkConstraintG().

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◆ mkConstraintG()

static graph_t * mkConstraintG	(	Dt_t *	list,
		intersectfn	intersect,
		distfn	dist
	)

static

Definition at line 271 of file constraint.c.

References agbindrec(), agclose(), agedge(), agnameof(), agnode(), agopen(), Agstrictdirected, alloc_elist, cg(), nitem::cnode, cnt(), dist(), dtflatten(), dtlink, ED_minlen, ED_weight, elist_append, GD_nlist, intersect(), mapGraphs(), ND_alg, ND_in, ND_next, ND_out, nitem::np, NULL, prev, SCALE, nitem::val, and nitem::vnode.

Referenced by constrainX(), and constrainY().

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◆ mkNConstraintG()

static graph_t * mkNConstraintG	(	graph_t *	g,
		Dt_t *	list,
		intersectfn	intersect,
		distfn	dist
	)

static

Definition at line 212 of file constraint.c.

References agbindrec(), agedge(), agfindedge, agfstout(), aghead, agnameof(), agnode(), agnxtout(), agopen(), Agstrictdirected, alloc_elist, nitem::bb, cg(), nitem::cnode, delta, dist(), dtflatten(), dtlink, ED_minlen, ED_weight, elist_append, GD_nlist, intersect(), ND_alg, ND_in, ND_next, ND_out, nitem::np, and NULL.

Referenced by constrainX(), and constrainY().

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◆ mkOverlapSet()

static pointf * mkOverlapSet	(	info *	nl,
		size_t	nn,
		size_t *	cntp
	)

static

Definition at line 684 of file constraint.c.

References info::bb, info::ht2, OVERLAP, info::pos, S, info::wd2, pointf_s::x, and pointf_s::y.

Referenced by scAdjust().

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◆ overlaps()

static int overlaps	(	nitem *	p,
		int	cnt
	)

static

Definition at line 479 of file constraint.c.

References nitem::bb, cnt(), and OVERLAP.

Referenced by adjust(), cAdjust(), and countOverlap().

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◆ scAdjust()

int scAdjust	(	graph_t *	g,
		int	equal
	)

Definition at line 787 of file constraint.c.

References agfstnode(), agnnodes(), agnxtnode(), info::bb, compress(), computeScale(), computeScaleXY(), expand_t::doAdd, free(), gv_calloc(), info::ht2, boxf::LL, mkOverlapSet(), ND_height, ND_pos, ND_width, info::np, info::pos, PS2INCH, sepFactor(), boxf::UR, Verbose, info::wd2, pointf_s::x, expand_t::x, pointf_s::y, and expand_t::y.

Referenced by removeOverlapWith().

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◆ sortf()

static int sortf	(	const void *	x,
		const void *	y
	)

static

Definition at line 631 of file constraint.c.

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

Referenced by computeScaleXY().

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Variable Documentation

◆ constr

Dtdisc_t constr

static

Initial value:

= {
    offsetof(nitem, val),
    sizeof(int),
    offsetof(nitem, link),
    NULL,
    NULL,
    cmpitem,
}

Definition at line 51 of file constraint.c.

Referenced by constrainX(), constrainY(), is_nonconstraint(), and nonconstraint_edge().

Data Structures

Macros

Typedefs

Functions

Variables

Macro Definition Documentation

◆ SCALE

◆ SCALE2

Typedef Documentation

◆ distfn

◆ intersectfn

◆ nitem

Function Documentation

◆ cAdjust()

◆ closeGraph()

◆ cmpitem()

◆ compress()

◆ computeScale()

◆ computeScaleXY()

◆ constrainX()

◆ constrainY()

◆ distX()

◆ distY()

◆ initItem()

◆ intersectX()

◆ intersectX0()

◆ intersectY()

◆ intersectY0()

◆ mapGraphs()

◆ mkConstraintG()

◆ mkNConstraintG()

◆ mkOverlapSet()

◆ overlaps()

◆ scAdjust()

◆ sortf()

Variable Documentation

◆ constr