type graph = [ | `Center of bool |
| `Fontcolor of color |
| `Fontname of string |
| `Fontsize of int |
| `HtmlLabel of string |
| `Label of string |
| `OrderingOut |
| `Orientation of [ `Landscape | `Portrait ] |
| `Page of float * float |
| `Pagedir of [ `LeftToRight | `TopToBottom ] |
| `Size of float * float |
]type vertex = [ | `Color of color |
| `ColorWithTransparency of color_with_transparency |
| `Fontcolor of color |
| `Fontname of string |
| `Fontsize of int |
| `Height of float |
| `HtmlLabel of string |
| `Label of string |
| `Orientation of float |
| `Penwidth of float |
| `Peripheries of int |
| `Regular of bool |
| `Shape of [ `Assembly | `Box | `Box3d | `Cds | `Circle | `Component | `Diamond | `Doublecircle | `Doubleoctagon | `Egg | `Ellipse | `Fivepoverhang | `Folder | `House | `Insulator | `Invhouse | `Invtrapezium | `Invtriangle | `Larrow | `Lpromoter | `Mcircle | `Mdiamond | `Msquare | `Note | `Noverhang | `Oval | `Parallelogram | `Plaintext | `Polygon of int * float | `Primersite | `Promoter | `Proteasesite | `Proteinstab | `Rarrow | `Record | `Restrictionsite | `Ribosite | `Rnastab | `Rpromoter | `Signature | `Star | `Tab | `Terminator | `Threepoverhang | `Trapezium | `Triangle | `Tripleoctagon | `Underline | `Utr ] |
| `Style of [ `Bold | `Dashed | `Dotted | `Filled | `Invis | `Rounded | `Solid ] |
| `Width of float |
]type edge = [ | `Color of color |
| `ColorWithTransparency of color_with_transparency |
| `Decorate of bool |
| `Dir of [ `Back | `Both | `Forward | `None ] |
| `Fontcolor of color |
| `Fontname of string |
| `Fontsize of int |
| `HtmlLabel of string |
| `Label of string |
| `Labelfontcolor of color |
| `Labelfontname of string |
| `Labelfontsize of int |
| `Penwidth of float |
| `Style of [ `Bold | `Dashed | `Dotted | `Invis | `Solid ] |
]