GENERALIZATIONS

• Hierarchy of stereotypes: (S_0, S_1, S_3)
  - One step: (M_i-1 + S_i) M_i
• Catalogue of prototypes
  - E.g. all chair prototypes
  - A simplification algorithm can consult this catalogue (perhaps automatically)
• Further to simplifications:
  - each vertex has an image point on stereotype
  - or a direction vector
• Integrated LOD Hierarchies:
  - to produce a hybrid model with parts taken from different levels of Hierarchy
  - E.g., polyline hierarchy