摘要
针对概念草图的输入输出问题,采用了基于草绘输入的交互式图形设计方法,实现了单笔划草绘轨迹主动分段识别与规整方法;运用了基于笔式手势的草图编辑方法,并将概念草图以DXF的格式输出,实现与现有CAD系统之间的集成。根据手势设计原则以及草图编辑的需要,定义并实现了选择、删除、移动等10种手势,同时采用感知器线性分类方法对手势进行识别。实例表明:手势编辑模式能够改善传统编辑方式在自然性与智能性方面的不足。
In order to realize the input and output of conceptual sketch, an interactive sketching design method based on pen is described. First, the methods for automatic segmentation, recognition and regularity of single sketching stroke are presented. Then ten kinds of pen-based are designed and used to edit the conceptual sketch, such as delete gesture, move gesture, copy gesture, rotate gesture, etc. These gestures are recognized by using the perceptron algorithm. Experimental results show recognition rates over 97%. After that, the exchange format files （DXF） is output from the system and integrated into other CAD systems. The example shows that the sketching edit method using strokes and gestures improve user adaptation and intelligence of CAD systems.
出处
《计算机工程与设计》
CSCD
北大核心
2007年第21期5174-5176,5192,共4页
Computer Engineering and Design
基金
浙江省自然科学基金项目(Y104616)
浙江省高校青年教师资助计划基金项目(200418)。
关键词
草绘设计
手势设计
手势识别
笔式输入
草图编辑
概念设计
freehand sketching
gesture design
gesture recognition
pen-based input
sketch edit
conceptual design
