Output to png
using twopi
dot -Ktwopi -Tpng graph1.gv -o graph1.png
Other algorithms (Layout Commands)
dot
fdp
neato
osage
sfdp
twopi
Not working on Windows:
circo
A triangle with large margins
digraph A { rankdir=LR; center=true; margin=1; nodesep=1.5; ranksep=0.5; node [shape=point, height=".2", width=".2"]; a [xlabel="a"]; b [xlabel="b"]; c [xlabel="c"]; a -> b -> c; a -> c; }
digraph A { rankdir=LR; center=true; margin=1; nodesep=1.5; ranksep=1.5; node [height="0.5", width="0.5", fixedsize=true]; X [xlabel=100]; Y [xlabel=150]; I1 [xlabel=150]; I2 [xlabel=100]; {X, Y}->{I1, I2}; }
Source: [1]
digraph A { rankdir=LR; center=true; margin=1; node [height="0.33", width="0.33", fixedsize=true]; b->a->d->g; a->e->h; e->g; d->{c,f}; c->e [dir="back"]; g->h [dir="back"]; b,d,e [style=filled, fillcolor=red, peripheries=2]; {rank=same; f;g;h;} {rank=same; d;e;c;} {rank=same; a;b;} }
graph G { nodesep=1.5; center=true; margin=1; node [color=black, shape=rectangle, style="filled", fillcolor=skyblue]; edge [len=2]; a;b;c;d;e; a--{b,c,d,e}; b--{c,d,e}; c--{d,e}; d--e; }
Source: [2]
digraph G { rankdir=LR; nodesep=0.7; ranksep=1; node [shape=none, fixedsize=true, width=0.3]; a->b->d; a->c->d; b->c [color="black:white:black",dir=none]; a->e->d; c->e [style=invis]; {rank=same;b;c;e;} }