摘要
ObjectARX.net作为AutoCAD功能强大的二次开发工具之一,其对GIS中的常用功能支持能力非常有限。探讨了基于ObjectARX.net的土地信息系统开发中的多边形实体标志的获取、多边形区域面积计算和涉及空间叠加的多边形区域实体对象的公共区域面积计算的算法,进行了编程实现,并用实际数据进行了检验。结果表明,这些算法是正确和可行的。
Although ObjectARX. net is one of the powerful development tools of the AutoCAD, its ability to treat GIS operations is very limited. Several algorithms are developed about acquiring of the application identifier of one polygon entity, computing the area of one polygon entity and computing the overlapped area between polygon entities during the development of the land information system based on ObjectARX. net. They are realized by programming, and are tested with practical data. The result shows these algorithms are right and feasible.
出处
《测绘与空间地理信息》
2009年第1期11-14,18,共5页
Geomatics & Spatial Information Technology
基金
国家自然科学基金(40301043)资助
教育部新世纪优秀人才支持计划基金(NCET-06-0381)资助
上海市科委"创新行动计划"项目(08230510700)资助
博士启动基金(B-8202-08-0288)资助
