摘要
介绍了Keyhole标记语言(Keyhole Markup Language,KML)中区域(Region)、细节级别(LOD)和网络链接(NetworkLink)的概念及实现原理,描述了用<Region>、<Lod>和<NetworkLink>等KML地图项创建KML超叠加层文件及其在Google Earth中快速加载大型数据集的方法。用VC++编程实现了基于遥感影像数据的KML超叠加层文件的批量生成,并在项目实践中检验了该技术的实用性。
The concepts and implementation principle of Region, Level of Detail （LOD） and Net- workLink in Keyhole Markup Language （KML） are presented. The method for rapidly loading large image files into Google Earth by using the KML super-overlay files created through KML tags including 〈Region〉, 〈LOD〉 and 〈NetworkLink〉 are described in detail. The batch creating of KML super-overlay files based on remote sensing image data is implemented by using VC＋＋. The practicality of this technique is verified in a project.
出处
《红外》
CAS
2012年第8期32-39,共8页
Infrared
基金
国家自然科学基金项目(40902093)
国家科技专项(SinoProbe-08)
上海市城市化生态过程与生态恢复重点实验室开放基金项目(SHUES2011A06)
