void init_ugraph(graph_t *g)
{
char *p;
double xf;
static char *rankname[] = {"local","global","none",NULL};
static int rankcode[] = {LOCAL, GLOBAL, NOCLUST, LOCAL};
double X,Y,Z,x,y;
GD_drawing(g) = NEW(layout_t);
/* set this up fairly early in case any string sizes are needed */
if ((p = agget(g,"fontpath")) || (p = getenv("DOTFONTPATH"))) {
/* overide GDFONTPATH in local environment if dot
* wants its own */
#ifdef HAVE_SETENV
setenv("GDFONTPATH", p, 1);
#else
static char *buf=0;
buf=grealloc(buf,strlen("GDFONTPATH=")+strlen(p)+1);
strcpy(buf,"GDFONTPATH=");
strcat(buf,p);
putenv(buf);
#endif
}
GD_drawing(g)->quantum = late_double(g,agfindattr(g,"quantum"),0.0,0.0);
GD_drawing(g)->font_scale_adj = 1.0;
/* setting rankdir=LR is only defined in dot,
* but having it set causes shape code and others to use it.
* The result is confused output, so we turn it off unless requested.
*/
if (UseRankdir)
GD_left_to_right(g) = ((p = agget(g,"rankdir")) && streq(p,"LR"));
else
GD_left_to_right(g) = FALSE;
do_graph_label(g);
xf = late_double(g,agfindattr(g,"nodesep"),DEFAULT_NODESEP,MIN_NODESEP);
GD_nodesep(g) = POINTS(xf);
p = late_string(g,agfindattr(g,"ranksep"),NULL);
if (p) {
if (sscanf(p,"%lf",&xf) == 0) xf = DEFAULT_RANKSEP;
else {if (xf < MIN_RANKSEP) xf = MIN_RANKSEP;}
if (strstr(p,"equally")) GD_exact_ranksep(g) = TRUE;
}
else xf = DEFAULT_RANKSEP;
GD_ranksep(g) = POINTS(xf);
GD_showboxes(g) = late_int(g,agfindattr(g,"showboxes"),0,0);
Epsilon = .0001 * agnnodes(g);
getdoubles2pt(g,"size",&(GD_drawing(g)->size));
getdoubles2pt(g,"page",&(GD_drawing(g)->page));
getdouble(g,"epsilon",&Epsilon);
getdouble(g,"nodesep",&Nodesep);
getdouble(g,"nodefactor",&Nodefactor);
X = Y = Z = x = y = 0.0;
if ((p = agget(g,"viewport")))
sscanf(p,"%lf,%lf,%lf,%lf,%lf",&X,&Y,&Z,&x,&y);
GD_drawing(g)->viewport.size.x = ROUND(X); /* viewport size in dev units - pixels */
GD_drawing(g)->viewport.size.y = ROUND(Y);
GD_drawing(g)->viewport.zoom = Z; /* scaling factor */
GD_drawing(g)->viewport.focus.x = x; /* graph coord of focus - points */
GD_drawing(g)->viewport.focus.y = y;
GD_drawing(g)->centered = mapbool(agget(g,"center"));
if ((p = agget(g,"rotate"))) GD_drawing(g)->landscape = (atoi(p) == 90);
else { /* today we learned the importance of backward compatibilty */
if ((p = agget(g,"orientation")))
GD_drawing(g)->landscape = ((p[0] == 'l') || (p[0] == 'L'));
}
p = agget(g,"clusterrank");
CL_type = maptoken(p,rankname,rankcode);
p = agget(g,"concentrate");
Concentrate = mapbool(p);
Nodesep = 1.0;
Nodefactor = 1.0;
Initial_dist = MYHUGE;
}
void graph_init(graph_t * g, boolean use_rankdir)
{
char *p;
double xf;
static char *rankname[] = { "local", "global", "none", NULL };
static int rankcode[] = { LOCAL, GLOBAL, NOCLUST, LOCAL };
static char *fontnamenames[] = {"gd","ps","svg", NULL};
static int fontnamecodes[] = {NATIVEFONTS,PSFONTS,SVGFONTS,-1};
int rankdir;
GD_drawing(g) = NEW(layout_t);
/* set this up fairly early in case any string sizes are needed */
if ((p = agget(g, "fontpath")) || (p = getenv("DOTFONTPATH"))) {
/* overide GDFONTPATH in local environment if dot
* wants its own */
#ifdef HAVE_SETENV
setenv("GDFONTPATH", p, 1);
#else
static char *buf = 0;
buf = grealloc(buf, strlen("GDFONTPATH=") + strlen(p) + 1);
strcpy(buf, "GDFONTPATH=");
strcat(buf, p);
putenv(buf);
#endif
}
GD_charset(g) = findCharset (g);
GD_drawing(g)->quantum =
late_double(g, agfindattr(g, "quantum"), 0.0, 0.0);
/* setting rankdir=LR is only defined in dot,
* but having it set causes shape code and others to use it.
* The result is confused output, so we turn it off unless requested.
* This effective rankdir is stored in the bottom 2 bits of g->u.rankdir.
* Sometimes, the code really needs the graph's rankdir, e.g., neato -n
* with record shapes, so we store the real rankdir in the next 2 bits.
*/
rankdir = RANKDIR_TB;
if ((p = agget(g, "rankdir"))) {
if (streq(p, "LR"))
rankdir = RANKDIR_LR;
else if (streq(p, "BT"))
rankdir = RANKDIR_BT;
else if (streq(p, "RL"))
rankdir = RANKDIR_RL;
}
if (use_rankdir)
SET_RANKDIR (g, (rankdir << 2) | rankdir);
else
SET_RANKDIR (g, (rankdir << 2));
xf = late_double(g, agfindattr(g, "nodesep"), DEFAULT_NODESEP,
MIN_NODESEP);
GD_nodesep(g) = POINTS(xf);
p = late_string(g, agfindattr(g, "ranksep"), NULL);
if (p) {
if (sscanf(p, "%lf", &xf) == 0)
xf = DEFAULT_RANKSEP;
else {
if (xf < MIN_RANKSEP)
xf = MIN_RANKSEP;
}
if (strstr(p, "equally"))
GD_exact_ranksep(g) = TRUE;
} else
xf = DEFAULT_RANKSEP;
GD_ranksep(g) = POINTS(xf);
GD_showboxes(g) = late_int(g, agfindattr(g, "showboxes"), 0, 0);
p = late_string(g, agfindattr(g, "fontnames"), NULL);
GD_fontnames(g) = maptoken(p, fontnamenames, fontnamecodes);
setRatio(g);
GD_drawing(g)->filled =
getdoubles2pt(g, "size", &(GD_drawing(g)->size));
getdoubles2pt(g, "page", &(GD_drawing(g)->page));
GD_drawing(g)->centered = mapbool(agget(g, "center"));
if ((p = agget(g, "rotate")))
GD_drawing(g)->landscape = (atoi(p) == 90);
else if ((p = agget(g, "orientation")))
GD_drawing(g)->landscape = ((p[0] == 'l') || (p[0] == 'L'));
else if ((p = agget(g, "landscape")))
GD_drawing(g)->landscape = mapbool(p);
p = agget(g, "clusterrank");
CL_type = maptoken(p, rankname, rankcode);
p = agget(g, "concentrate");
Concentrate = mapbool(p);
State = GVBEGIN;
GD_drawing(g)->dpi = 0.0;
if (((p = agget(g, "dpi")) && p[0])
|| ((p = agget(g, "resolution")) && p[0]))
GD_drawing(g)->dpi = atof(p);
do_graph_label(g);
Initial_dist = MYHUGE;
/* initialize nodes */
N_height = agfindattr(g->proto->n, "height");
N_width = agfindattr(g->proto->n, "width");
N_shape = agfindattr(g->proto->n, "shape");
N_color = agfindattr(g->proto->n, "color");
N_fillcolor = agfindattr(g->proto->n, "fillcolor");
N_style = agfindattr(g->proto->n, "style");
N_fontsize = agfindattr(g->proto->n, "fontsize");
N_fontname = agfindattr(g->proto->n, "fontname");
N_fontcolor = agfindattr(g->proto->n, "fontcolor");
N_label = agfindattr(g->proto->n, "label");
N_showboxes = agfindattr(g->proto->n, "showboxes");
N_penwidth = agfindattr(g->proto->n, "penwidth");
/* attribs for polygon shapes */
N_sides = agfindattr(g->proto->n, "sides");
N_peripheries = agfindattr(g->proto->n, "peripheries");
N_skew = agfindattr(g->proto->n, "skew");
N_orientation = agfindattr(g->proto->n, "orientation");
N_distortion = agfindattr(g->proto->n, "distortion");
N_fixed = agfindattr(g->proto->n, "fixedsize");
N_imagescale = agfindattr(g->proto->n, "imagescale");
N_nojustify = agfindattr(g->proto->n, "nojustify");
N_layer = agfindattr(g->proto->n, "layer");
N_group = agfindattr(g->proto->n, "group");
N_comment = agfindattr(g->proto->n, "comment");
N_vertices = agfindattr(g->proto->n, "vertices");
N_z = agfindattr(g->proto->n, "z");
/* initialize edges */
E_weight = agfindattr(g->proto->e, "weight");
E_color = agfindattr(g->proto->e, "color");
E_fontsize = agfindattr(g->proto->e, "fontsize");
E_fontname = agfindattr(g->proto->e, "fontname");
E_fontcolor = agfindattr(g->proto->e, "fontcolor");
E_label = agfindattr(g->proto->e, "label");
E_label_float = agfindattr(g->proto->e, "labelfloat");
/* vladimir */
E_dir = agfindattr(g->proto->e, "dir");
E_arrowhead = agfindattr(g->proto->e, "arrowhead");
E_arrowtail = agfindattr(g->proto->e, "arrowtail");
E_headlabel = agfindattr(g->proto->e, "headlabel");
E_taillabel = agfindattr(g->proto->e, "taillabel");
E_labelfontsize = agfindattr(g->proto->e, "labelfontsize");
E_labelfontname = agfindattr(g->proto->e, "labelfontname");
E_labelfontcolor = agfindattr(g->proto->e, "labelfontcolor");
E_labeldistance = agfindattr(g->proto->e, "labeldistance");
E_labelangle = agfindattr(g->proto->e, "labelangle");
/* end vladimir */
E_minlen = agfindattr(g->proto->e, "minlen");
E_showboxes = agfindattr(g->proto->e, "showboxes");
E_style = agfindattr(g->proto->e, "style");
E_decorate = agfindattr(g->proto->e, "decorate");
E_arrowsz = agfindattr(g->proto->e, "arrowsize");
E_constr = agfindattr(g->proto->e, "constraint");
E_layer = agfindattr(g->proto->e, "layer");
E_comment = agfindattr(g->proto->e, "comment");
E_tailclip = agfindattr(g->proto->e, "tailclip");
E_headclip = agfindattr(g->proto->e, "headclip");
E_penwidth = agfindattr(g->proto->e, "penwidth");
}