机械制图试题智能评阅技术

Intelligent Marking for Mechanical Drawing Answers

根据试题标准答案的矢量图,提取其几何信息与拓扑信息作为评价试题的标准,以AutoCAD绘制的标准图形为基础,提出并实现了一种机械制图试题智能评阅算法.通过分析图形数据的分类存储模式,对标准图形信息进行分类提取,然后以图元类型为单位,分别与相应的图形对象对比匹配,匹配错误时作提示批注并扣除适当分值,以此类推,即可求得试题的得分,实现对试题的智能批阅.

According to the standard answers of vector figure,geometric information and topological information data is extracted as the evaluation criteria of question,a technique of intelligent marking algorithm for mechanical drawing answers is proposed and implemented based on the standard documents drew by AutoCAD software.By analyzing the model of graphical data classification and storage,standard graphic information is classified and extracted.Then,the corresponding graphic objects under the type of graphic elements are compared and matched respectively,annotation is made and appropriate points is deducted for error answers,therefore,scores can be calculated,and intelligent marking process is realized.