traverse_upstream_graph#

omni.graph.core.traverse_upstream_graph(
prims: List[Prim],
attribute_predicate: Callable[[Attribute], bool] | None = None,
node_callback: Callable[[Node], None] | None = None,
) → Set[Node]#

Traverses the nodes upstream from the input nodes and apply the predicate on visited nodes.

Parameters:

  • prims – The list of starting point nodes for the traversal.

  • attribute_predicate – Function taking an Attribute as parameter and returning bool. If True, connections to this attribute are evaluated, otherwise they are skipped.

  • node_callback – Function taking a Node as parameter. Allows for custom logic to be applied to visited nodes.

Returns:

The set of visited nodes.

Return type:

set[omni.graph.core.Node]

Raises:

og.OmniGraphError if the list of prims contains an invalid prim, or the prims do not all belong to the same graph. –

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