SpatialUnit enum

The unit every coordinate of one spatial document is expressed in.

The values are the ALTO MeasurementUnit enumeration — the only unit vocabulary the shared contract carries. DjVu hidden text is always pixel.

Inheritance

• Object
• Enum
• SpatialUnit

Available extensions

• EnumName

Values

pixel → const SpatialUnit

One image pixel. Self-verifying: no external scale is needed.

millimeter10 → const SpatialUnit

One tenth of a millimetre (mm10 in ALTO).

inch1200 → const SpatialUnit

One 1200th of an inch (inch1200 in ALTO).

Properties

hashCode → int

The hash code for this object.

no setter, inherited

index → int

A numeric identifier for the enumerated value.

no setter, inherited

name → String

Available on Enum, provided by the EnumName extension

The name of the enum value.

no setter

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

pixelScale({double? dpi}) → double?

The multiplier that converts this unit's lengths into pixels, or null when the conversion cannot be verified.

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited

Constants

values → const List<SpatialUnit>

A constant List of the values in this enum, in order of their declaration.