# Constants

# EmptyArray

A constant returning the same reference to an empty array.

An enumeration of all supported shapes:

Shape name	String value	Example
`Shapes.Circle`	`"circle"`
`Shapes.Diamond`	`"diamond"`
`Shapes.Dot`	`"dot"`
`Shapes.Heptagon`	`"heptagon"`
`Shapes.HeptagonInverted`	`"heptagon-inverted"`
`Shapes.Heptagram`	`"heptagram"`
`Shapes.HeptagramInverted`	`"heptagram-inverted"`
`Shapes.Hexagon`	`"hexagon"`
`Shapes.Hexagram`	`"hexagram"`
`Shapes.Octagon`	`"octagon"`
`Shapes.Octagram`	`"octagram"`
`Shapes.Pentagon`	`"pentagon"`
`Shapes.PentagonInverted`	`"pentagon-inverted"`
`Shapes.Pentagram`	`"pentagram"`
`Shapes.PentagramInverted`	`"pentagram-inverted"`
`Shapes.Plus`	`"plus"`
`Shapes.Cross`	`"cross"`
`Shapes.Square`	`"square"`
`Shapes.Star`	`"star"`
`Shapes.Tetragram`	`"tetragram"`
`Shapes.Triangle`	`"triangle"`
`Shapes.TriangleInverted`	`"triangle-inverted"`
`Shapes.TriangleRight`	`"triangle-right"`
`Shapes.TriangleLeft`	`"triangle-left"`
`Shapes.Chevron`	`"chevron"`
`Shapes.DoubleChevron`	`"double-chevron"`
`Shapes.ChevronInverted`	`"chevron-inverted"`
`Shapes.DoubleChevronInverted`	`"double-chevron-inverted"`
`Shapes.ChevronRight`	`"chevron-right"`
`Shapes.DoubleChevronRight`	`"double-chevron-right"`
`Shapes.ChevronLeft`	`"chevron-left"`
`Shapes.DoubleChevronLeft`	`"double-chevron-left"`
`Shapes.Wye`	`"wye"`
`Shapes.WyeInverted`	`"wye-inverted"`

An enumeration of all supported tree types:

Shape name	String value	Kind
`TreeTypes.Radial`	`"rd"`	Polar
`TreeTypes.Rectangular`	`"rc"`	Orthogonal
`TreeTypes.Circular`	`"cr"`	Polar
`TreeTypes.Diagonal`	`"dg"`	Orthogonal
`TreeTypes.Hierarchical`	`"hr"`	Orthogonal