CubeItemTyperepresents a cube of values like a spatial particle distribution, where the particle position is given by X which is the column, Y the row and Z the depth. In the example of a spatial partical distribution, the value is the particle size. CubeItemTypeis formally defined in Table 12.

Table 12– CubeItemType definition

Attribute	Value
BrowseName	CubeItemType
IsAbstract	False
ValueRank	3 (3 = three dimensional array)
DataType	BaseDataType
References	NodeClass	BrowseName	DataType	TypeDefinition	ModellingRule
Subtype of the ArrayItemType defined in 5.3.4.1
HasProperty	Variable	XAxisDefinition	AxisInformation	PropertyType	Mandatory
HasProperty	Variable	YAxisDefinition	AxisInformation	PropertyType	Mandatory
HasProperty	Variable	ZAxisDefinition	AxisInformation	PropertyType	Mandatory

Engineering units and range for the Valueare defined by corresponding Propertiesinherited from the ArrayItemType.

The DataTypeof this VariableTypeis restricted to SByte, Int16, Int32, Int64, Float, Double, ComplexNumberTypeand DoubleComplexNumberType.

The ArrayDimensions Attributefor Variablesof this type or subtypes should use the first entry in the array ([0]) to define the number of columns, the second entry ([1]) to define the number of rows, and the third entry ([2]) define the number of steps in the Z axis, assuming the size of the matrix is not dynamic.

XAxisDefinition Propertyholds the information about the engineering units and range for the X-Axis.

YAxisDefinition Propertyholds the information about the engineering units and range for the Y-Axis.

ZAxisDefinition Propertyholds the information about the engineering units and range for the Z-Axis.

The StatusCode SemanticsChangedbit shall be set if any of the InstrumentRange, EURange, EngineeringUnits, Title, XAxisDefinition, YAxisDefinitionor ZAxisDefinition Propertiesare changed (see 5.2for additional information).