The SpatialObjectsListType defines an AddIn which may be used to extend objects with a description for a common identifiable reference coordinate system and Organizes all instances of SpatialObjectType AddIns.

The SpatialObjectsListType is illustrated in Figure 5 and is formally defined in Table 15.

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Figure 5 – SpatialObjectsListType

Table 15 – SpatialObjectsListType Definition

Attribute

Value

BrowseName

SpatialObjectsListType

IsAbstract

False

References

Node Class

BrowseName

DataType

TypeDefinition

Other

Subtype of the BaseObjectType defined in OPC 10000-5.

0:HasProperty

Variable

Identifier

0:String

0:PropertyType

M

0:HasComponent

Variable

WorldFrame

0:BaseDataType {Any}

SpatialLocationType

M

0:HasProperty

Variable

0:NodeVersion

0:String

0:PropertyType

M

0:GeneratesEvent

ObjectType

0:GeneralModelChangeEventType

0:Organizes

Object

<SpatialObject>

SpatialObjectType

OP

ConformanceUnits

RSL Base

The Attribute DisplayName of the SpatialObjectsListType shall be used to add application specific identification.

The mandatory Property Identifier shall be used to name the SpatialObjectsList. Annex C.3 describes different scenarios for the use of the Identifier.

The mandatory Variable WorldFrame is, direct or indirect via other frames, the geometrical base definition of all objects with SpatialObjectType AddIn, which are OrganizedBy this SpatialObjectsList.

The Variable 0:NodeVersion and the GeneralModelChangeEvent have been added within the SpatialObjectsListType in order to identify changes in the model as described in OPC 10000-3.

A SpatialObjectsList Organizes instances of SpatialObjectType. Typically, a SpatialObjectsList organises at least one instance of SpatialObjectType. Since SpatialObjects are dynamic in nature, it is also possible that no SpatialObject is contained in a SpatialObjectsList.

The components of the SpatialObjectsListType have additional Attributes defined in Table 16.

Table 16 – SpatialObjectsListType Attribute values for child Nodes

BrowsePath

Value Attribute

Description Attribute

WorldFrame

Base

WorldFrame as the origin of the coordinate system has no Base i.e. it must be null.