科技文档中基于约束的平面几何作图  

Plane geometric construction based on constraints in scientific document

作　　者：吴文文[1] 于俊清[1] 

机构地区：[1]华中科技大学计算机科学与技术学院,湖北武汉430074

出　　处：《计算机工程与设计》2007年第17期4257-4259,4262,共4页Computer Engineering and Design

基　　金：国家863高技术研究发展计划基金项目(2003AA1Z2310)

摘　　要：为了提高科技文档中几何作图的效率,在科技文档字处理软件ScienceWord中实现了一种基于约束的平面几何作图系统。为了构建基于约束的作图系统,对约束的相关理论作了研究,讨论了该作图系统的总体设计框架和构建约束作图系统的一般步骤,介绍了系统中建立元素之间约束的用户界面设计。由于系统充分考虑了图形元素之间的几何关系,用户不必求助于别的软件就能在科技文档中高效地绘制出各种复杂的几何图形。In order to improve the efficiency of geometric figure drawing in scientific document, a plane geometric construction system based on constraints is implemented in ScienceWord, which is a scientific document processing software. The theory of constraints is introduced firstly, and then the overall design and the way to build the drawing system based on constraints is discussed in details. A convenient user interface of the system to establish constraints between graphical elements is also introduced. Because the drawing system takes advantage of the relationship between geometry elements in good measure, the user can effectively draw various geometric figures in a scientific document without any assistant of other tools.

关 键 词：约束 几何作图 辅助教学软件 科技文档 几何关系 

分 类 号：TP317.2[自动化与计算机技术—计算机软件与理论]