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Google Earth二次开发制图接口设计与实现

发表时间:2011-09-30  浏览量:2138  下载量:1000
全部作者: 杨鑫,郑新奇
作者单位: 中国地质大学(北京)土地科学技术学院
摘 要: 对Google Earth(GE)进行二次开发,将其与地理信息系统(geographic information system, GIS)软件进行整合是进一步扩展GE应用、充分挖掘GE潜能的重要途径,而在GE视图窗口上进行图形绘制是其中一项十分重要的功能。描述了GE二次开发制图接口(drawing features in secondary development of Google Earth, GEDFI)的设计与实现。利用GEDFI可快速实现地理数据中常见图形(点、线段、折线、矩形、多边形、岛多边形)的绘制、图形属性字段设置、属性赋值、根据坐标点集合批量成图等功能,为程序员对GE进行二次开发提供了极大的方便。从接口实现的技术路线出发,对其中的关键技术进行详细介绍。最后指出接口的不足之处主要体现在屏幕取点造成的图形绘制不如GIS软件流畅。
关 键 词: 地理信息系统;Google Earth;图形绘制;KML
Title: An interface for drawing features in secondary development of Google Earth
Author: YANG Xin, ZHENG Xinqi
Organization: School of Land Science and Technology, China University of Geosciences
Abstract: It is an important way for Google Earth (GE) to dig its potential fully and extend its application that integrated with geographic information system (GIS) by secondary development. And drawing features on its view window is very important when developing and applying GE. This paper describes the design and realization of the interface for drawing features in secondary development of Google Earth (GEDFI). The interface brings great convenience to programmer. Using the interface, conventional graphics, such as point, line, polyline, rectangle, polygon and island, can be drawn easily; and their attribute can be edited. The paper illustrates the technology roadmap and key technologies. At last the inadequacy of the interface is analyzed.
Key words: geographic information system; Google Earth; drawing features; KML
发表期数: 2011年9月第18期
引用格式: 杨鑫,郑新奇. Google Earth二次开发制图接口设计与实现[J]. 中国科技论文在线精品论文,2011,4(18):1692-1696.
 
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