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| class   | pfc::IClump | 
|   | Interface for a clump. This is the interface for a clump. A clump is a collection of pebbles that define the clump surface (see IPebble for more information). This interface provides basic functionality for accessing the Body Attributes and Piece properties associated with a clump.  More...
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| class   | pfc::IClumpTemplate | 
|   | Interface for a clump template. This is the interface for a clump template. A clump template is composed of a clump, a surface description, and a reference orientation.  More...
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| class   | pfc::IModuleClump | 
|   | Interface for the Clump module. This is the interface for the Clump module.  More...
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