基于实例的图案生成模型

Modeling of Case Based Pattern Design

基于实例的设计方法应用于图案CAD领域是一个新的尝试 .本文提出了一个基于实例推理的图案生成模型 .采用结构与数据相结合的实例描述方法 ,将图案设计实例分解为基于框架描述的实例结构和基于多类型图元的实例数据 .而把整个图案生成过程视为特定的实例结构针对不同实例数据 (图元 )的例化过程 .对实例库的组织与检索、实例的改编与再设计等实例推理中的关键技术 ,提出了新的求解策略 .同时 ,利用知识推理方法 ,在图案生成过程中引入了基于设计上下文的引导式交互技术以及局部操作到整体布局的自动提升等智能化交互技术 ,简化了图案创作过程 .实际结果表明 ,实例推理方法对于系列化。

It is a new attempt to apply the case based reasoning (CBR) method to the pattern CAD domain. This paper presents a case based model for pattern design. We first decompose the pattern into pattern elements, and represents the pattern case by frame-based case structure and element-based case data, then the procedure of pattern design is modeled as the case-making process of specific pattern case frame aiming to various pattern elements. We also present some new solving strategy for the key techniques used in CBR, such as the organization and query mechanics of case base, case adoption and re-design of case etc. Meanwhile, the conductive interaction technique based on design context and the knowledge-based promotion from local operation to global layout are applied successfully in the model. Running the prototype system shows that CBR is an effective approach for the design of serial and regular pattern.