工程图纸矢量化软件的设计与实现

工程图纸矢量化是把扫描所得到的光栅图像加以处理、分析、识别，并最终转换成矢量图形格式的过程。矢量化研究是图纸复用、自动理解等应用的基础，是目前CAD领域的一个研究热点。文中介绍了所开发的工程图纸矢量化软件的设计思想和实现技术，包括图像处理和图形自动识别算法,以及为了进一步提高矢量化的准确率而采用的光栅图像编辑和矢量图形编辑等人机交互方法。实验结果证明了以上诸多方法的有效性，软件基本上达到了实用水平。

The Design and Implementation of Engineering Drawing Vectorization Software

Vectorization,i.e,raster-to-vector conversion,is the process of analyzing the scanned image of an engineering drawing in paper form and recognizing the graphic objects in the drawing,and finally,generating the vector format.Vectorization is the foundation of the activities of reusing old drawings and the automatic interpretation of engineering drawings.It has been and still is a well focused topic in CAD research field.In this paper,introduce the design thought and implementation technology of engineering drawing vectorization software.It includes the algorithm of image processing and graphics auto-recognition.In order to improve exactitude of vectorization, use the human-computer interactive method,such as raster image edition and vector graphics edition.Experimentation shows that these methods are valid and this software can use in some fields.