void
draw_main(void)
{
if (draw_flag) {
draw_flag = 0; // so "stop" really stops
stop("draw calls draw");
}
draw_flag++;
setup_trange();
setup_xrange();
setup_yrange();
check_for_parametric_draw();
create_point_set();
emit_graph();
draw_flag--;
}
void dotneato_write(graph_t* g, std::string *output_str)
{
double xf, yf;
char *p;
int i;
/* margins */
if ((p = agget(g,"margin"))) {
i = sscanf(p,"%lf,%lf",&xf,&yf);
if (i > 0) g->u.drawing->margin.x = g->u.drawing->margin.y = POINTS(xf);
if (i > 1) g->u.drawing->margin.y = POINTS(yf);
}
else {
/* set default margins depending on format */
switch (Output_lang) {
case GIF:
case PNG:
case JPEG:
case GD:
case GD2:
case ISMAP:
case IMAP:
case VRML:
case SVG:
g->u.drawing->margin.x = DEFAULT_EMBED_MARGIN_X;
g->u.drawing->margin.y = DEFAULT_EMBED_MARGIN_Y;
break;
case POSTSCRIPT:
case HPGL:
case PCL:
case MIF:
case METAPOST:
case FIG:
case VTX:
case ATTRIBUTED_DOT:
case PLAIN:
g->u.drawing->margin.x = g->u.drawing->margin.y = DEFAULT_MARGIN;
break;
case CANONICAL_DOT:
break;
}
}
switch (Output_lang) {
case POSTSCRIPT:
case HPGL:
case PCL:
case MIF:
case GIF:
case PNG:
case JPEG:
case GD:
case GD2:
case ISMAP:
case IMAP:
case VRML:
case METAPOST:
case FIG:
case SVG:
/* output in breadth first graph walk order */
emit_graph(g,0); break;
case VTX:
/* output sorted, i.e. all nodes then all edges */
emit_graph(g,1); break;
case ATTRIBUTED_DOT:
attach_attrs(g);
agwrite(g,Output_file); break;
case CANONICAL_DOT:
agwrite(g,Output_file); break;
case PLAIN:
attach_attrs(g);
if (output_str)
write_plainstr(g,output_str);
else
write_plain(g,Output_file);
break;
}
fflush(Output_file);
}
