NXOpen::Assemblies Namespace Reference (C++)

Documented purpose (implicit from class set): assembly structure, components, patterns, arrangements, explosions, and clearance analysis. 86 classes in the NX 2212 C++ reference. Below are the core structural classes every assembly-facing NX Open program touches, plus a map of the surrounding builder/utility classes by theme.

Core object model

Class	Description
Assembly	Assembly class. This is an abstract class, and cannot be instantiated.
ComponentAssembly	Represents the set of NXOpen::Assemblies::Components that make up an assembly.
Component	Represents a component in a NXOpen::Assemblies::ComponentAssembly.
AssemblyManager	Represents the Assembly Manager. To obtain an instance of this class, refer to NXOpen::BasePart. Created in NX6.0.0.
ComponentOrder	Represents an order object that stores the order of child Components in context of a parent ComponentAssembly.
ComponentGroup	Represents a Component Group that is defined within an Assembly.
ComponentGroupCollection	Collection type for ComponentGroup.
Arrangement	Manages the suppression of Components within a ComponentAssembly (NX's "arrangements" feature — alternate suppression states of the same assembly structure, e.g. for different configurations).
ArrangementCollection	Collection type for Arrangement.
ComponentPattern	Represents the component pattern class (patterned/arrayed components in an assembly).
ComponentPatternCollection	Collection type for ComponentPattern.

How they relate

• A Part that is an assembly exposes its structure through ComponentAssembly (reached from the part, mirroring how Part exposes Features via FeatureCollection in the root namespace) — this is the set of Component objects (each Component = one instance of a child part placed/positioned within the parent).
• AssemblyManager (obtained from BasePart) is the higher-level services object for assembly-wide operations (interpart operations, WAVE-linking helpers, etc. — see the *Builder classes below).
• ComponentOrder tracks the order of children in the assembly tree (display/traversal order), separate from the parent-child structure itself.
• Arrangement is NX's mechanism for saving alternate suppression states of the same assembly (e.g. "shipping configuration" vs. "service configuration") without duplicating the structure.
• ComponentGroup / ComponentPattern support grouping and patterning components — e.g. patterning a bolt+washer sub-assembly around a bolt circle.

Builder classes by theme (selected, from the 86-class set)

The namespace follows the same Builder pattern documented in features-namespace.md. Notable groups seen in the class list:

• Adding/creating components: AddComponentBuilder, CreateComponentBuilder, CreateNewComponentBuilder.
• Positioning: AbsolutePositionBuilder (works alongside NXOpen::Positioning — see positioning-namespace.md).
• Patterning/arranging: ComponentPatternBuilder, ArrangementsBuilder.
• Visibility/state: HideComponentBuilder.
• Interpart data & WAVE-style linking: LoadInterpartDataBuilder, MakeUniquePartBuilder, CreateOverridePartBuilder, DeleteOverridePartBuilder, CopyDesignElementBuilder, DesignElementBuilder.
• Search/query: AttributeSearchTerm (+Builder), BoxSearchTerm (+Builder), ExplicitSearchTerm, GroupSearchTerm, FindInCollaborativeDesign — a family of "search term" classes used to query components/parts across an assembly or Teamcenter collaborative context by attribute, spatial box, or explicit list.
• Clearance analysis: ClearanceAnalysisBuilder, ClearanceSet, ClearanceSetCollection — programmatic access to NX's assembly clearance/interference analysis.
• Explosions: DrawingExplosion (+Collection), Explosion (+Collection), ExplodedComponent — assembly explosion views (used for documentation/drawings).
• General/parameter properties: AssembliesGeneralPropertiesBuilder, AssembliesParameterPropertiesBuilder — programmatic access to the Assembly Properties dialogs.
• Constraint display: ConstraintDisplayBuilder — controls how constraints (from NXOpen::Positioning) are shown for an assembly.

Cross-reference

ComponentAssembly::CreateConstraintGroupBuilder is the documented bridge into NXOpen::Positioning::ComponentConstraintGroupBuilder — see positioning-namespace.md for the constraint side of assembly modeling.