complexType OccurrenceType

diagram
namespace	http://www.plmxml.org/Schemas/PLMXMLSchema
type	extension of plm:StructureUsageBase
properties	base  plm:StructureUsageBase
children	plm:Description plm:ApplicationRef plm:Attribute plm:BoxBound plm:SphereBound plm:Bound plm:Transform plm:Representation plm:VariantCondition plm:Reference plm:PropertyGroup plm:EntityPropertyGroup plm:Material plm:EntityMaterial plm:AssociatedAttachment plm:AttributeContext
used by	element  Occurrence complexTypes  Ann3DOccurrenceType ConstraintOccurrenceType FeatureOccurrenceType MechanismOccurrenceType ProcessOccurrenceType SensorOccurrenceType WorkAreaOccurrenceType
attributes	Name   Type   Use   Default   Fixed   Annotation id   xsd:ID   optional         name   xsd:string   optional         nameRef   plm:anyURIType   optional         descriptionTextRef   plm:anyURIType   optional         attributeRefs   xsd:IDREFS   optional         accessRefs   plm:uriReferenceListType   optional         statusRef   plm:anyURIType   optional         checkoutRefs   plm:uriReferenceListType   optional         subType   xsd:string   optional         effectivityRefs   plm:uriReferenceListType   optional         releaseStatusRefs   plm:uriReferenceListType   optional         instancedRef   plm:anyURIType   optional         transformRef   xsd:IDREF   optional         materialRef   xsd:IDREF   optional         partRef   plm:anyURIType   optional         representationRefs   plm:uriReferenceListType   optional         propertyRefs   plm:uriReferenceListType   optional         designRequired   xsd:boolean   optional         occurrenceRefs   xsd:IDREFS   optional         instanceRefs   plm:uriReferenceListType   optional         pathRefs   plm:uriReferenceListType   optional         geometryRefs   plm:uriReferenceListType   optional         alternativeOfRef   plm:anyURIType   optional         productViewRef   plm:anyURIType   optional         visible   xsd:boolean   optional         lastInstanceParentRef   plm:anyURIType   optional         sourceRef   plm:anyURIType   optional         linkedOccurrenceRef   plm:anyURIType   optional         linkedGroupRef   plm:anyURIType   optional         associatedAttachmentRefs   plm:uriReferenceListType   optional         parentRef   plm:anyURIType   optional         instanceNumber   xsd:integer   optional         occurrenceId   xsd:string   optional         controlRefs   plm:uriReferenceListType   optional         symbolicRefs   plm:uriReferenceListType   optional
annotation	documentation       Occurrence. An Occurrence specifies a usage of a Structure, StructureRevision, or       StructureRevisionView in an Assembly. The usage is defined by specifying a chain of       Instances which lead from the Assembly down to the Structure, or by a chain of       Instances and other Occurrences, which when joined together define an Instance       chain. It is also possible for an Occurrence to reference a ProductView at the end       of its Instance chain, rather than a Structure.       The Assembly, which is the parent of the first Instance in the Instance chain, is       called the 'top Structure' of the Occurrence. The Structure, which is instanced by       the last Instance in the Instance chain, is called the 'bottom Structure' of the       Occurrence.       Note that the following inherited attributes on an Occurrence override the       attributes of the same name on the last Instance of the Instance chain:         materialRef         instancedRef         partRef         representationRefs       In addition, the 'transformRef' attribute overrides the transform       obtained by accumulating the transforms in the Instance chain.       Attributes:       instanceRefs:   chain of Instances which define the Occurrence. (May end in a                       GDEInstanceGroup).       pathRefs:       chain of Instances and Occurrences which, when joined together,                       define an Instance chain. Only one of instanceRefs and pathRefs                       should be present.       geometryRefs:   optional geometry associated with this Occurrence.       occurrenceRefs: an Occurrence may have a number of 'child' Occurrences, which this                       attribute specifies. A child Occurrence must have an Instance chain                       which is the same as that of its parent, but with one more Instance                       added at the bottom end. An Occurrence is normally only rendered in                       a view if it has no child Occurrences.       alternativeOfRef: It is possible for one ProductView to be defined by reference to                       another ProductView. In this case the first ProductView will                       contain some Occurrences which override Occurrences in the                       referenced ProductView. The 'alternativeOfRef' attribute is used to                       indicate the Occurrence which this Occurrence is overriding. If an                       Occurrence has an alternativeOfRef attribute, it should not also                       have an instanceRefs attribute, nor should it have an                       occurrenceRefs attribute.       productViewRef: If an Occurrence has a productViewRef, then it is regarded as an                       Occurrence of that ProductView, not of its 'bottom Structure'. In                       this case, the 'top Structure' of the ProductView must be the same                       as the 'bottom Structure' of the Occurrence.       visible:        Flag to indicate the Occurrence is visible. If absent, visible is                       implied. An Occurrence which references another Occurrence via the                       alternativeOfRef attribute may override its visibility, i.e. make                       it visible if invisible or vice-versa. NB This is deprecated -                       use a Visibility Property instead.       lastInstanceParentRef: This is the StructureRevisionView which is the parent of the                       last Instance in the chain. Although this is implied by the last                       Instance in the chain, it can be specified explicitly with this                       attribute, either for convenience, or in the case where                       instanceRefs is absent.       sourceRef:      A reference to the InstancePath to which this corresponds (which                       will have the same instance path as this Occurrence).                             linkedOccurrenceRef:  In a Composition ProductView, this attribute references an                       Occurrence or ConfiguredOccurrenceGroup in a referenced ProductView.                       It indicates that this Occurrence should be treated as an Occurrence                       not of an entire ProductRevisionView, but only of the specified                       Occurrence(s).                              linkedGroupRef: A reference to a ConfiguredOccurrenceGroup. This corresponds to the                       group referenced by 'linkedOccurrenceRef', but contains Occurrences                       in the Composition ProductView.       associatedAttachmentRefs: reference to any associated attachments. These are the                       direct attachments of this Occurrence - any sub-attachments will be                       referenced by those attachments.       parentRef:      This is an optional back-pointer reference to a parent Occurrence,                       which references this Occurrence through its 'occurrenceRefs'                       attribute.       instanceNumber  A number, or index. This is only relevant when the last Instance                       in the path is a GDEInstance.                             occurrenceId:   ID for the Occurrence, unique in the context of the top-level                       Structure of the Occurrence.                             controlRefs:    The OccurrenceControlRevision objects controlling this occurrence, if any       symbolicRefs:   the child SymbolicOccurrences       Elements:       Material:       EntityMaterial: Allows the association of a Material with an entity; for example                       the Occurrence could specify the colour of a face of a body. The                       entity should be in a Representation specified by this Occurrence,                       or by the last Instance in the Instance chain, or by the 'bottom                       Structure' of the Occurrence.       AssociatedAttachment             AttributeContext: Used to specify the source of any overridden attributes or                       properties of this Occurrence.
source	<xsd:complexType name="OccurrenceType">   <xsd:annotation>     <xsd:documentation>       Occurrence. An Occurrence specifies a usage of a Structure, StructureRevision, or       StructureRevisionView in an Assembly. The usage is defined by specifying a chain of       Instances which lead from the Assembly down to the Structure, or by a chain of       Instances and other Occurrences, which when joined together define an Instance       chain. It is also possible for an Occurrence to reference a ProductView at the end       of its Instance chain, rather than a Structure.       The Assembly, which is the parent of the first Instance in the Instance chain, is       called the 'top Structure' of the Occurrence. The Structure, which is instanced by       the last Instance in the Instance chain, is called the 'bottom Structure' of the       Occurrence.       Note that the following inherited attributes on an Occurrence override the       attributes of the same name on the last Instance of the Instance chain:         materialRef         instancedRef         partRef         representationRefs       In addition, the 'transformRef' attribute overrides the transform       obtained by accumulating the transforms in the Instance chain.       Attributes:       instanceRefs:   chain of Instances which define the Occurrence. (May end in a                       GDEInstanceGroup).       pathRefs:       chain of Instances and Occurrences which, when joined together,                       define an Instance chain. Only one of instanceRefs and pathRefs                       should be present.       geometryRefs:   optional geometry associated with this Occurrence.       occurrenceRefs: an Occurrence may have a number of 'child' Occurrences, which this                       attribute specifies. A child Occurrence must have an Instance chain                       which is the same as that of its parent, but with one more Instance                       added at the bottom end. An Occurrence is normally only rendered in                       a view if it has no child Occurrences.       alternativeOfRef: It is possible for one ProductView to be defined by reference to                       another ProductView. In this case the first ProductView will                       contain some Occurrences which override Occurrences in the                       referenced ProductView. The 'alternativeOfRef' attribute is used to                       indicate the Occurrence which this Occurrence is overriding. If an                       Occurrence has an alternativeOfRef attribute, it should not also                       have an instanceRefs attribute, nor should it have an                       occurrenceRefs attribute.       productViewRef: If an Occurrence has a productViewRef, then it is regarded as an                       Occurrence of that ProductView, not of its 'bottom Structure'. In                       this case, the 'top Structure' of the ProductView must be the same                       as the 'bottom Structure' of the Occurrence.       visible:        Flag to indicate the Occurrence is visible. If absent, visible is                       implied. An Occurrence which references another Occurrence via the                       alternativeOfRef attribute may override its visibility, i.e. make                       it visible if invisible or vice-versa. NB This is deprecated -                       use a Visibility Property instead.       lastInstanceParentRef: This is the StructureRevisionView which is the parent of the                       last Instance in the chain. Although this is implied by the last                       Instance in the chain, it can be specified explicitly with this                       attribute, either for convenience, or in the case where                       instanceRefs is absent.       sourceRef:      A reference to the InstancePath to which this corresponds (which                       will have the same instance path as this Occurrence).                             linkedOccurrenceRef:  In a Composition ProductView, this attribute references an                       Occurrence or ConfiguredOccurrenceGroup in a referenced ProductView.                       It indicates that this Occurrence should be treated as an Occurrence                       not of an entire ProductRevisionView, but only of the specified                       Occurrence(s).                              linkedGroupRef: A reference to a ConfiguredOccurrenceGroup. This corresponds to the                       group referenced by 'linkedOccurrenceRef', but contains Occurrences                       in the Composition ProductView.       associatedAttachmentRefs: reference to any associated attachments. These are the                       direct attachments of this Occurrence - any sub-attachments will be                       referenced by those attachments.       parentRef:      This is an optional back-pointer reference to a parent Occurrence,                       which references this Occurrence through its 'occurrenceRefs'                       attribute.       instanceNumber  A number, or index. This is only relevant when the last Instance                       in the path is a GDEInstance.                             occurrenceId:   ID for the Occurrence, unique in the context of the top-level                       Structure of the Occurrence.                             controlRefs:    The OccurrenceControlRevision objects controlling this occurrence, if any       symbolicRefs:   the child SymbolicOccurrences       Elements:       Material:       EntityMaterial: Allows the association of a Material with an entity; for example                       the Occurrence could specify the colour of a face of a body. The                       entity should be in a Representation specified by this Occurrence,                       or by the last Instance in the Instance chain, or by the 'bottom                       Structure' of the Occurrence.       AssociatedAttachment             AttributeContext: Used to specify the source of any overridden attributes or                       properties of this Occurrence.       </xsd:documentation>   </xsd:annotation>   <xsd:complexContent>     <xsd:extension base="plm:StructureUsageBase">       <xsd:choice minOccurs="0" maxOccurs="unbounded">         <xsd:element ref="plm:Material"/>         <xsd:element ref="plm:EntityMaterial"/>         <xsd:element ref="plm:AssociatedAttachment"/>         <xsd:element ref="plm:AttributeContext"/>       </xsd:choice>       <xsd:attribute name="occurrenceRefs" type="xsd:IDREFS" use="optional" plm:refType="plm:Occurrence"/>       <xsd:attribute name="instanceRefs" type="plm:uriReferenceListType" use="optional" plm:refType="plm:Managed"/>       <xsd:attribute name="pathRefs" type="plm:uriReferenceListType" use="optional" plm:refType="plm:Managed"/>       <xsd:attribute name="geometryRefs" type="plm:uriReferenceListType" use="optional" plm:refType="plm:Geometry"/>       <xsd:attribute name="alternativeOfRef" type="plm:anyURIType" use="optional" plm:refType="plm:Occurrence"/>       <xsd:attribute name="productViewRef" type="plm:anyURIType" use="optional" plm:refType="plm:ProductView"/>       <xsd:attribute name="visible" type="xsd:boolean" use="optional" plm:deprecated="true"/>       <xsd:attribute name="lastInstanceParentRef" type="plm:anyURIType" use="optional" plm:refType="plm:StructureRevisionView"/>       <xsd:attribute name="sourceRef" type="plm:anyURIType" use="optional" plm:refType="plm:InstancePath"/>       <xsd:attribute name="linkedOccurrenceRef" type="plm:anyURIType" use="optional" plm:refType="plm:Managed"/>       <xsd:attribute name="linkedGroupRef" type="plm:anyURIType" use="optional" plm:refType="plm:ConfiguredOccurrenceGroup"/>       <xsd:attribute name="associatedAttachmentRefs" type="plm:uriReferenceListType" use="optional" plm:refType="plm:AssociatedAttachment"/>       <xsd:attribute name="parentRef" type="plm:anyURIType" use="optional" plm:refType="plm:Occurrence"/>       <xsd:attribute name="instanceNumber" type="xsd:integer" use="optional"/>       <xsd:attribute name="occurrenceId" type="xsd:string" use="optional"/>       <xsd:attribute name="controlRefs" type="plm:uriReferenceListType" use="optional" plm:refType="plm:OccurrenceControlRevision"/>       <xsd:attribute name="symbolicRefs" type="plm:uriReferenceListType" use="optional" plm:refType="plm:SymbolicOccurrence"/>     </xsd:extension>   </xsd:complexContent> </xsd:complexType>

attribute OccurrenceType/@occurrenceRefs

type	xsd:IDREFS
properties	use  optional
source	<xsd:attribute name="occurrenceRefs" type="xsd:IDREFS" use="optional" plm:refType="plm:Occurrence"/>

attribute OccurrenceType/@instanceRefs

type	plm:uriReferenceListType
properties	use  optional
source	<xsd:attribute name="instanceRefs" type="plm:uriReferenceListType" use="optional" plm:refType="plm:Managed"/>

attribute OccurrenceType/@pathRefs

type	plm:uriReferenceListType
properties	use  optional
source	<xsd:attribute name="pathRefs" type="plm:uriReferenceListType" use="optional" plm:refType="plm:Managed"/>

attribute OccurrenceType/@geometryRefs

type	plm:uriReferenceListType
properties	use  optional
source	<xsd:attribute name="geometryRefs" type="plm:uriReferenceListType" use="optional" plm:refType="plm:Geometry"/>

attribute OccurrenceType/@alternativeOfRef

type	plm:anyURIType
properties	use  optional
source	<xsd:attribute name="alternativeOfRef" type="plm:anyURIType" use="optional" plm:refType="plm:Occurrence"/>

attribute OccurrenceType/@productViewRef

type	plm:anyURIType
properties	use  optional
source	<xsd:attribute name="productViewRef" type="plm:anyURIType" use="optional" plm:refType="plm:ProductView"/>

attribute OccurrenceType/@visible

type	xsd:boolean
properties	use  optional
source	<xsd:attribute name="visible" type="xsd:boolean" use="optional" plm:deprecated="true"/>

attribute OccurrenceType/@lastInstanceParentRef

type	plm:anyURIType
properties	use  optional
source	<xsd:attribute name="lastInstanceParentRef" type="plm:anyURIType" use="optional" plm:refType="plm:StructureRevisionView"/>

attribute OccurrenceType/@sourceRef

type	plm:anyURIType
properties	use  optional
source	<xsd:attribute name="sourceRef" type="plm:anyURIType" use="optional" plm:refType="plm:InstancePath"/>

attribute OccurrenceType/@linkedOccurrenceRef

type	plm:anyURIType
properties	use  optional
source	<xsd:attribute name="linkedOccurrenceRef" type="plm:anyURIType" use="optional" plm:refType="plm:Managed"/>

attribute OccurrenceType/@linkedGroupRef

type	plm:anyURIType
properties	use  optional
source	<xsd:attribute name="linkedGroupRef" type="plm:anyURIType" use="optional" plm:refType="plm:ConfiguredOccurrenceGroup"/>

attribute OccurrenceType/@associatedAttachmentRefs

type	plm:uriReferenceListType
properties	use  optional
source	<xsd:attribute name="associatedAttachmentRefs" type="plm:uriReferenceListType" use="optional" plm:refType="plm:AssociatedAttachment"/>

attribute OccurrenceType/@parentRef

type	plm:anyURIType
properties	use  optional
source	<xsd:attribute name="parentRef" type="plm:anyURIType" use="optional" plm:refType="plm:Occurrence"/>

attribute OccurrenceType/@instanceNumber

type	xsd:integer
properties	use  optional
source	<xsd:attribute name="instanceNumber" type="xsd:integer" use="optional"/>

attribute OccurrenceType/@occurrenceId

type	xsd:string
properties	use  optional
source	<xsd:attribute name="occurrenceId" type="xsd:string" use="optional"/>

attribute OccurrenceType/@controlRefs

type	plm:uriReferenceListType
properties	use  optional
source	<xsd:attribute name="controlRefs" type="plm:uriReferenceListType" use="optional" plm:refType="plm:OccurrenceControlRevision"/>

attribute OccurrenceType/@symbolicRefs

type	plm:uriReferenceListType
properties	use  optional
source	<xsd:attribute name="symbolicRefs" type="plm:uriReferenceListType" use="optional" plm:refType="plm:SymbolicOccurrence"/>

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