# Mechanism

Some geometric entities are linked together so that they remain rigidly connected.

This connection information can be retrieved using the following functions. For more information, see Rigid Linkssection in the programming guide.

Parameters

> pOwnerNode: The base Product Occurrence the resulting list in built on.

> puiNumberOfFixedSubNodes: The size `pppFixedSubNodes`

> pppFixedSubNodes: The resulting array.

Returns

> `A3D_SUCCESS`on success, or an error code on failure

Functions

- `A3DAsmGetFixedComponents()`
- `A3DAsmGetFixedTogetherComponents()`
- `A3DAsmGetFlexibleComponents()`

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