BRepGraph::UIDsView Class Reference

Read-only view for persistent unique identifiers. More...

#include <BRepGraph_UIDsView.hxx>

Public Member Functions
BRepGraph_UID	Of (const BRepGraph_NodeId theNode) const
	Return the UID assigned to a node.
BRepGraph_RefUID	Of (const BRepGraph_RefId theRefId) const
	Return the RefUID assigned to a reference.
BRepGraph_NodeId	NodeIdFrom (const BRepGraph_UID &theUID) const
	Resolve a UID back to a NodeId using the internal reverse index.
BRepGraph_RefId	RefIdFrom (const BRepGraph_RefUID &theUID) const
	Resolve a RefUID back to a RefId using the internal reverse index.
bool	Has (const BRepGraph_UID &theUID) const
	Check if a UID is valid and exists in this graph generation.
bool	Has (const BRepGraph_RefUID &theUID) const
	Check if a RefUID is valid and exists in this graph generation.
uint32_t	Generation () const
	Return the current generation counter (incremented on each BRepGraph::Clear()).
const Standard_GUID &	GraphGUID () const
	Return the graph-level identity GUID. Generated randomly at BRepGraph::Clear() time; changes on each rebuild.
BRepGraph_VersionStamp	StampOf (const BRepGraph_NodeId theNode) const
	Produce a version stamp for the given node. Combines the node's UID with its current OwnGen and graph Generation.
BRepGraph_VersionStamp	StampOf (const BRepGraph_RefId theRefId) const
	Produce a version stamp for the given reference. Combines the reference's RefUID with its current OwnGen and graph Generation.
bool	IsStale (const BRepGraph_VersionStamp &theStamp) const
	Check if a previously-taken stamp is stale. A stamp is stale when the stamped node or reference has been mutated, removed, or the graph was rebuilt since the stamp was taken.

Detailed Description

Read-only view for persistent unique identifiers.

UIDs are (Kind, Counter) pairs that persist across graph mutations (Compact, node removal). Counters are monotonic and independent of vector indices. Clear() starts a new graph generation and refreshes the graph GUID, enabling stale-reference detection when a graph is rebuilt. Provides bidirectional NodeId/UID resolution. Obtained via BRepGraph::UIDs().

Member Function Documentation

Generation()

uint32_t BRepGraph::UIDsView::Generation

(

)

const

Return the current generation counter (incremented on each BRepGraph::Clear()).

Returns

graph generation number

GraphGUID()

const Standard_GUID & BRepGraph::UIDsView::GraphGUID

(

)

const

Return the graph-level identity GUID. Generated randomly at BRepGraph::Clear() time; changes on each rebuild.

Returns

reference to the graph identity GUID

Has() [1/2]

bool BRepGraph::UIDsView::Has

(

const BRepGraph_RefUID &

theUID

)

const

Check if a RefUID is valid and exists in this graph generation.

Parameters

[in]

theUID

unique reference identifier to check

Returns

true if the RefUID resolves to an active reference in this graph generation

Has() [2/2]

bool BRepGraph::UIDsView::Has

(

const BRepGraph_UID &

theUID

)

const

Check if a UID is valid and exists in this graph generation.

Parameters

[in]

theUID

unique identifier to check

Returns

true if the UID resolves to an active node in this graph generation

IsStale()

bool BRepGraph::UIDsView::IsStale

(

const BRepGraph_VersionStamp &

theStamp

)

const

Check if a previously-taken stamp is stale. A stamp is stale when the stamped node or reference has been mutated, removed, or the graph was rebuilt since the stamp was taken.

Parameters

[in]

theStamp

version stamp to check

Returns

true if the stamp no longer matches the current graph state

NodeIdFrom()

BRepGraph_NodeId BRepGraph::UIDsView::NodeIdFrom

(

const BRepGraph_UID &

theUID

)

const

Resolve a UID back to a NodeId using the internal reverse index.

Parameters

[in]

theUID

unique identifier to resolve

Returns

corresponding active NodeId, or invalid NodeId if not found/removed

Of() [1/2]

BRepGraph_UID BRepGraph::UIDsView::Of

(

const BRepGraph_NodeId

theNode

)

const

Return the UID assigned to a node.

Parameters

[in]

theNode

node identifier

Returns

UID for the active node, or invalid UID if theNode is out of bounds or removed

Of() [2/2]

BRepGraph_RefUID BRepGraph::UIDsView::Of

(

const BRepGraph_RefId

theRefId

)

const

Return the RefUID assigned to a reference.

Parameters

[in]

theRefId

reference identifier

Returns

RefUID for the active reference, or invalid RefUID if theRefId is out of bounds or removed

RefIdFrom()

BRepGraph_RefId BRepGraph::UIDsView::RefIdFrom

(

const BRepGraph_RefUID &

theUID

)

const

Resolve a RefUID back to a RefId using the internal reverse index.

Parameters

[in]

theUID

unique reference identifier to resolve

Returns

corresponding active RefId, or invalid RefId if not found/removed

StampOf() [1/2]

BRepGraph_VersionStamp BRepGraph::UIDsView::StampOf

(

const BRepGraph_NodeId

theNode

)

const

Produce a version stamp for the given node. Combines the node's UID with its current OwnGen and graph Generation.

Parameters

[in]

theNode

node identifier

Returns

version stamp, or invalid stamp if theNode is invalid, removed, or out of bounds

StampOf() [2/2]

BRepGraph_VersionStamp BRepGraph::UIDsView::StampOf

(

const BRepGraph_RefId

theRefId

)

const

Produce a version stamp for the given reference. Combines the reference's RefUID with its current OwnGen and graph Generation.

Parameters

[in]

theRefId

reference identifier

Returns

version stamp, or invalid stamp if theRefId is invalid, removed, or out of bounds

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The documentation for this class was generated from the following file:

• BRepGraph_UIDsView.hxx