雪龙船实时航迹图中的技术处理方法  

THE TECHNOLOGICAL METHODS APPLYING IN THE REAL-TIME TRACKING MAP OF XUELONG SHIP

作　　者：薛怀平[1] 徐汉卿 朱建钢[3] 廖小韵 刘根友[1] 郝晓光[1] 

机构地区：[1]中国科学院测量与地球物理研究所,武汉430077 [2]湖北省地图院,武汉430071 [3]中国极地研究中心,上海200136

出　　处：《极地研究》2006年第1期46-51,共6页Chinese Journal of Polar Research

基　　金：国家自然科学基金项目(40401053);国家863计划项目(2005AA132030XZ05)资助。

摘　　要：采用新编《系列世界地图》成果,结合GIS和计算机网络技术,于2004年11月首次实现了我国南极考察“雪龙”船航迹的网上实时跟踪服务。本文详细论述了“实时航迹图”的投影转换原理、图幅坐标与屏幕坐标的映射、航迹线剪裁、网上建立“实时航迹图”及利用可视化组件实现网上“实时航迹图”web应用几个关键技术问题,并给出了解决这些问题的具体方法。Combining the production of ＇the Series of World Map＇ with the technique of GIS and computer network, the real-time tracking service of Xuelong Ship of Antarctic Expedition are firstly realized in November, 2004. In this article a few key questions are dissertated in detail, such as the theory of projection transformation, mapping of the map coordinates and screen coordinates, clipping of track line, of real-time track map, and the building up and applying of real-time track map on the net using visual subassembly. The concrete methods are put forward to settle these issues.

关 键 词：“雪龙”船 实时航迹图 坐标映射 WEB应用 INTRAWEB 

分 类 号：U675.81[交通运输工程—船舶及航道工程]