CAD数字地形图中房屋属性自动匹配实现  

Realization of Automatic Attribute Setting of Houses in CAD DLG

作　　者：刘德儿[1] 肖海平[1] 

机构地区：[1]江西理工大学

出　　处：《金属矿山》2008年第6期85-86,141,共3页Metal Mine

基　　金：国家自然科学基金项目(编号:40401045);江西省教育厅科技研究项目(赣教技字[2006]195号);地理信息科学江苏省重点实验室开发基金项目(编号:JK20050302)

摘　　要：数字地形图要素属性配置是数字地形图数据到GIS数据的一项重要而又繁重的工作,其中房屋属性匹配占主要部分。根据房屋多边形和其属性之间存在的位置关系,通过对已有判断点在多边形内外算法的研究和分析,采用射线法作为基本算法,同时提出了对射线法的异常处理,并利用该算法实现了数字地形图中房屋属性的自动匹配,以及对该算法进行了一系列实验,从实验结果可以看出该算法稳定、可靠。The constituent attribute configuration of DIG is an important and hard work in converting DIG data to GIS data,with the house attribute configuration being the principal part. Based on the spatial relation between a house polygon and its attributes and through the study and analysis of the available algorithms for judging a point in or outside the polygon, the ray method was adopted as the basic algorithm which was exceptionally treated. The automatic setting of the house attributes in DIG was realized by using this algorithm and a series of tests were also made on this algorithm. The algorithm was proven to be stable and reliable.

关 键 词：CAD 数字地形图 属性自动匹配 

分 类 号：TP391[自动化与计算机技术—计算机应用技术] P284[自动化与计算机技术—计算机科学与技术]