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中文摘要：
当前的CAD工具缺乏对构思活动中各种设计知识的有效建模,造成设计方案难以在后续工作中灵活、快速地复用.采用基于草图界面的自然交互方式,通过对设计过程中草图信息的分析与建模实现对设计过程的描述;在复用过程中向用户提供推荐方案,支持设计意图的自然表达和方案的灵活复用,从而降低用户认知负担.实验结果表明,这种基于草图信息分析与建模的设计方案能满足敏捷设计的需要,实现了设计方案的灵活复用.
英文摘要：
Most of the existing CAD tools are unable to efficiently support reuse design plan due to the lack of design knowledge modeling during the design process. In this paper, a sketch-based interface supporting natural interaction and efficient design plan reuse is proposed. The design process is specified by analyzing and modeling the sketch information. With the suggestions provided during the process, the method allows user to describe the intention naturally and reuse design plans conveniently, so users＇ cognitive workload is reduced. Experimental results show that the method can be efficiently used to support freeform design and reuse design plan.
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