regular
If true, force polygon to be regular.
type: bool, default: false
If true, the vertices of the polygon will lie on a circle whose center is the center of the node.
digraph { "pentagon1" [shape="pentagon"]; "pentagon2" [shape="pentagon" regular=true] "hexagon1" [shape="hexagon"]; "hexagon2" [shape="hexagon" regular=true]; }- Nodes