Graphviz: lib/neatogen/stuff.c File Reference

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#include "config.h"
#include <cgraph/alloc.h>
#include <math.h>
#include <neatogen/neato.h>
#include <neatogen/stress.h>
#include <stdlib.h>
#include <time.h>
#include <unistd.h>

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Macros
#define	Msub(i, j) M[(i)*Ndim+(j)]

Functions
static Agnode_t *	choose_node (graph_t *, int)

static void	make_spring (graph_t , Agnode_t , Agnode_t *, double)

static void	move_node (graph_t , int, Agnode_t )

static double	fpow32 (double x)

static double	distvec (double p0, double p1, double *vec)

double **	new_array (int m, int n, double ival)

void	free_array (double **rv)

static double ***	new_3array (int m, int n, int p, double ival)

static void	free_3array (double ***rv)

static int	lenattr (edge_t e, Agsym_t index, double *val)

static int	degreeKind (graph_t g, node_t n, node_t **op)

static node_t *	prune (graph_t G, node_t np, node_t *next)

static double	setEdgeLen (graph_t G, node_t np, Agsym_t *lenx, double dfltlen)

int	scan_graph_mode (graph_t *G, int mode)

int	scan_graph (graph_t *g)

void	free_scan_graph (graph_t *g)

void	jitter_d (node_t *np, int nG, int n)

void	jitter3d (node_t *np, int nG)

void	randompos (node_t *np, int nG)

void	initial_positions (graph_t *G, int nG)

void	diffeq_model (graph_t *G, int nG)

static double	total_e (graph_t *G, int nG)

void	solve_model (graph_t *G, int nG)

static void	update_arrays (graph_t *G, int nG, int i)

static void	D2E (graph_t G, int nG, int n, double M)

static void	heapup (node_t *v)

static void	heapdown (node_t *v)

void	neato_enqueue (node_t *v)

node_t *	neato_dequeue (void)

void	shortest_path (graph_t *G, int nG)

void	s1 (graph_t G, node_t node)

Variables
static double	Epsilon2

static node_t **	Heap

static int	Heapsize

static node_t *	Src

Macro Definition Documentation

◆ Msub

#define Msub	(	i,
		j
	)	M[(i)*Ndim+(j)]

Definition at line 479 of file stuff.c.

Function Documentation

◆ choose_node()

node_t * choose_node	(	graph_t *	G,
		int	nG
	)

static

Definition at line 514 of file stuff.c.

References cnt(), Epsilon2, G, GD_move, GD_neato_nlist, GD_sum_t, MaxIter, ND_pinned, Ndim, NULL, P_SET, and Verbose.

Referenced by solve_model().

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◆ D2E()

static void D2E	(	graph_t *	G,
		int	nG,
		int	n,
		double *	M
	)

static

Definition at line 480 of file stuff.c.

References D, fpow32(), G, GD_dist, GD_neato_nlist, GD_spring, MAXDIM, Msub, ND_pos, Ndim, and scale().

Referenced by move_node().

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◆ degreeKind()

static int degreeKind	(	graph_t *	g,
		node_t *	n,
		node_t **	op
	)

static

Definition at line 132 of file stuff.c.

References agfstedge(), aghead, agnxtedge(), agtail, and NULL.

Referenced by prune(), and scan_graph_mode().

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◆ diffeq_model()

void diffeq_model	(	graph_t *	G,
		int	nG
	)

Definition at line 357 of file stuff.c.

References agfindedge, D, del(), dist(), distvec(), ED_factor, elapsed_sec(), G, GD_dist, GD_neato_nlist, GD_spring, GD_sum_t, GD_t, MAXDIM, ND_pos, Ndim, Spring_coeff, start_timer(), and Verbose.

Referenced by kkNeato().

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◆ distvec()

static double distvec	(	double *	p0,
		double *	p1,
		double *	vec
	)

static

Definition at line 34 of file stuff.c.

References dist(), and Ndim.

Referenced by diffeq_model(), and update_arrays().

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◆ fpow32()

static double fpow32 ( double x )

static

Definition at line 28 of file stuff.c.

Referenced by D2E().

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◆ free_3array()

static void free_3array ( double *** rv )

static

Definition at line 89 of file stuff.c.

References free().

Referenced by free_scan_graph().

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◆ free_array()

void free_array ( double ** rv )

Definition at line 62 of file stuff.c.

References free().

Referenced by circuit_model(), circuitModel(), free_scan_graph(), and lu_decompose().

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◆ free_scan_graph()

void free_scan_graph ( graph_t * g )

Definition at line 301 of file stuff.c.

References free(), free_3array(), free_array(), GD_dist, GD_neato_nlist, GD_spring, GD_sum_t, GD_t, Nop, and NULL.

Referenced by neato_cleanup_graph(), and neato_layout().

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◆ heapdown()

static void heapdown ( node_t * v )

static

Definition at line 600 of file stuff.c.

References Heap, Heapsize, left, ND_dist, ND_heapindex, and right.

Referenced by neato_dequeue().

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◆ heapup()

static void heapup ( node_t * v )

static

Definition at line 583 of file stuff.c.

References Heap, ND_dist, and ND_heapindex.

Referenced by neato_enqueue(), and s1().

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◆ initial_positions()

void initial_positions	(	graph_t *	G,
		int	nG
	)

Definition at line 333 of file stuff.c.

References agwarningf(), checkStart(), G, GD_neato_nlist, hasPos, init(), INIT_RANDOM, INIT_REGULAR, INIT_SELF, randompos(), and Verbose.

Referenced by kkNeato(), and sgd().

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◆ jitter3d()

void jitter3d	(	node_t *	np,
		int	nG
	)

Definition at line 320 of file stuff.c.

References jitter_d().

Referenced by initRegular(), randompos(), and user_pos().

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◆ jitter_d()

void jitter_d	(	node_t *	np,
		int	nG,
		int	n
	)

Definition at line 313 of file stuff.c.

References drand48(), ND_pos, and Ndim.

Referenced by jitter3d(), and user_pos().

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◆ lenattr()

static int lenattr	(	edge_t *	e,
		Agsym_t *	index,
		double *	val
	)

static

Definition at line 108 of file stuff.c.

References agwarningf(), agxget(), Nop, and NULL.

Referenced by setEdgeLen().

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◆ make_spring()

void make_spring	(	graph_t *	G,
		Agnode_t *	u,
		Agnode_t *	v,
		double	f
	)

static

Definition at line 705 of file stuff.c.

References G, GD_dist, and ND_id.

Referenced by s1().

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◆ move_node()

void move_node	(	graph_t *	G,
		int	nG,
		Agnode_t *	n
	)

static

Definition at line 550 of file stuff.c.

References agnameof(), D2E(), Damping, drand48(), free(), G, GD_move, GD_sum_t, gv_calloc(), MAXDIM, ND_id, ND_pos, Ndim, solve(), test_toggle(), and update_arrays().

Referenced by solve_model().

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◆ neato_dequeue()

node_t * neato_dequeue ( void )

Definition at line 636 of file stuff.c.

References Heap, heapdown(), Heapsize, ND_heapindex, and NULL.

Referenced by s1().

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◆ neato_enqueue()

void neato_enqueue ( node_t * v )

Definition at line 624 of file stuff.c.

References Heap, Heapsize, heapup(), and ND_heapindex.

Referenced by s1().

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◆ new_3array()

static double *** new_3array	(	int	m,
		int	n,
		int	p,
		double	ival
	)

static

Definition at line 71 of file stuff.c.

References gv_calloc(), and NULL.

Referenced by scan_graph_mode().

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◆ new_array()

double ** new_array	(	int	m,
		int	n,
		double	ival
	)

Definition at line 47 of file stuff.c.

References gv_calloc().

Referenced by circuit_model(), circuitModel(), lu_decompose(), and scan_graph_mode().

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◆ prune()

static node_t * prune	(	graph_t *	G,
		node_t *	np,
		node_t *	next
	)

static

Definition at line 168 of file stuff.c.

References agdelete(), agnxtnode(), degreeKind(), and G.

Referenced by scan_graph_mode().

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◆ randompos()

void randompos	(	node_t *	np,
		int	nG
	)

Definition at line 325 of file stuff.c.

References drand48(), jitter3d(), ND_pos, and Ndim.

Referenced by initial_positions().

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◆ s1()

void s1	(	graph_t *	G,
		node_t *	node
	)

Definition at line 671 of file stuff.c.

References agfstedge(), aghead, agnxtedge(), agtail, ED_dist, G, GD_neato_nlist, heapup(), Initial_dist, make_spring(), ND_dist, ND_heapindex, ND_hops, neato_dequeue(), neato_enqueue(), and Src.

Referenced by buildBindings(), clip_line(), comp_ascend(), comp_ascend_int(), concat(), concat(), concatPort(), concatPort(), directVis(), gvbisect(), gvrender_comparestr(), indexOf(), is_parallel(), rindexOf(), same_side(), scomp(), shortest_path(), STsetUnion(), SWIG_Tcl_ObjectConstructor(), and tok().

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◆ scan_graph()

int scan_graph ( graph_t * g )

Definition at line 296 of file stuff.c.

References MODE_KK, and scan_graph_mode().

Referenced by init_nop().

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◆ scan_graph_mode()

int scan_graph_mode	(	graph_t *	G,
		int	mode
	)

Definition at line 216 of file stuff.c.

References agattr(), agdelete(), AGEDGE, agfstnode(), agget(), agnameof(), agnedges(), agnnodes(), agnxtnode(), Damping, degreeKind(), DFLT_TOLERANCE, Epsilon, G, GD_dist, GD_neato_nlist, GD_spring, GD_sum_t, GD_t, getdouble(), gv_calloc(), Initial_dist, MODE_KK, MODE_SGD, ND_heapindex, ND_id, Ndim, new_3array(), new_array(), Nop, prune(), Reduce, setEdgeLen(), str, and Verbose.

Referenced by neatoLayout(), and scan_graph().

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◆ setEdgeLen()

static double setEdgeLen	(	graph_t *	G,
		node_t *	np,
		Agsym_t *	lenx,
		double	dfltlen
	)

static

Definition at line 192 of file stuff.c.

References agerr(), agfstout(), agnameof(), agnxtout(), AGPREV, ED_dist, err, G, len(), and lenattr().

Referenced by scan_graph_mode().

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◆ shortest_path()

void shortest_path	(	graph_t *	G,
		int	nG
	)

Definition at line 654 of file stuff.c.

References agfstnode(), agnxtnode(), elapsed_sec(), free(), G, gv_calloc(), Heap, s1(), start_timer(), and Verbose.

Referenced by kkNeato().

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◆ solve_model()

void solve_model	(	graph_t *	G,
		int	nG
	)

Definition at line 432 of file stuff.c.

References agnameof(), agwarningf(), choose_node(), elapsed_sec(), Epsilon, Epsilon2, G, GD_move, MaxIter, move_node(), total_e(), and Verbose.

Referenced by kkNeato().

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◆ total_e()

static double total_e	(	graph_t *	G,
		int	nG
	)

static

Definition at line 408 of file stuff.c.

References G, GD_dist, GD_neato_nlist, GD_spring, ND_pos, and Ndim.

Referenced by solve_model().

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◆ update_arrays()

static void update_arrays	(	graph_t *	G,
		int	nG,
		int	i
	)

static

Definition at line 452 of file stuff.c.

References del(), dist(), distvec(), G, GD_dist, GD_neato_nlist, GD_spring, GD_sum_t, GD_t, MAXDIM, ND_pos, and Ndim.

Referenced by move_node().

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Variable Documentation

◆ Epsilon2

double Epsilon2

static

Definition at line 23 of file stuff.c.

Referenced by choose_node(), and solve_model().

◆ Heap

node_t** Heap

static

Definition at line 579 of file stuff.c.

Referenced by heapdown(), heapup(), neato_dequeue(), neato_enqueue(), and shortest_path().

◆ Heapsize

int Heapsize

static

Definition at line 580 of file stuff.c.

Referenced by heapdown(), neato_dequeue(), and neato_enqueue().

◆ Src

node_t* Src

static

Definition at line 581 of file stuff.c.

Referenced by s1().

Macros

Functions

Variables

Macro Definition Documentation

◆ Msub

Function Documentation

◆ choose_node()

◆ D2E()

◆ degreeKind()

◆ diffeq_model()

◆ distvec()

◆ fpow32()

◆ free_3array()

◆ free_array()

◆ free_scan_graph()

◆ heapdown()

◆ heapup()

◆ initial_positions()

◆ jitter3d()

◆ jitter_d()

◆ lenattr()

◆ make_spring()

◆ move_node()

◆ neato_dequeue()

◆ neato_enqueue()

◆ new_3array()

◆ new_array()

◆ prune()

◆ randompos()

◆ s1()

◆ scan_graph()

◆ scan_graph_mode()

◆ setEdgeLen()

◆ shortest_path()

◆ solve_model()

◆ total_e()

◆ update_arrays()

Variable Documentation

◆ Epsilon2

◆ Heap

◆ Heapsize

◆ Src