Wgraph:Demo alignment

• default alignment is center

{{#wgraph:svg|thumb=40|wgl|gdl|

 subgraph s1 {state boxed node_alignment top   } node A s1 { height 20}   node B s1 {height 40}
 subgraph s2 {state boxed node_alignment center} node C s2 { height 20}   node D s2 {height 40}
 subgraph s3 {state boxed node_alignment bottom} node E s3 { height 20}   node F s3 {height 40}

}}