基于AutoCAD的图形数据坐标系转换细节问题探讨  

Discussion on Some Detail Problems of Graphic Data Coordinate Transformation Base on AutoCAD

作　　者：李杰[1] 郝会民[1] 宿永利 

机构地区：[1]石家庄市勘察测绘设计研究院,河北石家庄050019 [2]石家庄市城市规划信息中心,河北石家庄050019

出　　处：《城市勘测》2013年第6期117-119,共3页Urban Geotechnical Investigation & Surveying

摘　　要：随着各地2000国家大地坐标系的建立与逐步启用,原有坐标系空间数据成果转换日益提上日程。规划主管部门以及勘测、规划设计单位在多年来的业务工作中积累和生产了大量基于AutoCAD的图形数据,为保证历史数据的延续性、可利用性,需要开展坐标系转换工作。本文结合石家庄数据转换情况,探讨转换过程中的技术问题,尤其是一些细节问题。With the gradual establishment and adoption of CGCS2000, the transformation between old and new coor- dinates is becoming an urgent problem. Planning departments, surveying and design units have accumulated or produced a large number of graphics data based on AutoCAD over the years. In order to ensure the continuity and availability of historical data, need for coordinate conversion work. In this paper, combined with the Shijiazhuang data conversion, dis- cusses the technical problems in the conversion process, especially some details.

关 键 词：坐标系转换 解耦算法 文字旋转角 图块角度 凸度 填充处理 扩展属性 坐标系标识 

分 类 号：P226.3[天文地球—大地测量学与测量工程]