Area¶

Overview¶

Data type

An actual value for a physical quantity of type NullableArea, i.e., a physical quantity that has a numerical value and a unit of measurement.

Supertypes

NullableArea

Attributes (data)

Name	Multiplicity	Type
Unit	1	AreaUnit
Value	1	Double

Implementation in Proteus Schema

All data attributes with type NullableArea (the base type of Area) are implemented as DEXPI generic attributes for physical quantities.

Example

The instance area1 represents an Area of 6.0 m².

Implementation in Proteus Schema

<GenericAttribute
  Format="double"
  Value="6.0"
  Units="MetreSquared"
  UnitsURI="http://data.posccaesar.org/rdl/RDS1358009" ...>

Note that the <GenericAttribute> element must have a Name and an AttributeURI attribute. They depend on the data type attribute of the DEXPI class that owns the instance area1. For a complete example, see the attribute FilterArea of the DEXPI class FilterUnit.

Unit¶

Attribute (data)

The unit of measurement of the Area.

Multiplicity: 1

Type: AreaUnit

Implementation in Proteus Schema

See implementation of Area.

Example

See example for Area.

Value¶

Attribute (data)

The numerical value of the Area.

Multiplicity: 1

Type: Double

Implementation in Proteus Schema

See implementation of Area.

Example

See example for Area.