Wgraph:Demo orientation

{{#wgraph:svg|thumb=60|wgl|

 subgraph s1   { state boxed orientation left_to_right}
   node A s1 {}  node B1 s1 {}  node B2 s1 {shape trapezoid}  edge A B1 {} edge A B2 {}
 subgraph s2   { state boxed orientation right_to_left}
   node C s2 {}  node D1 s2 {}  node D2 s2 {shape trapezoid}  edge C D1 {} edge C D2 {}
 subgraph s3   { state boxed orientation top_to_bottom}
   node E s3 {}  node F1 s3 {}  node F2 s3 {shape trapezoid}  edge E F1 {} edge E F2 {}
 subgraph s4   { state boxed orientation bottom_to_top}
   node G s4 {}  node H1 s4 {}  node H2 s4 {shape trapezoid}  edge G H1 {} edge G H2 {}

}}