计算机应用 ›› 2015, Vol. 35 ›› Issue (10): 3013-3016.DOI: 10.11772/j.issn.1001-9081.2015.10.3013

• 行业与领域应用 • 上一篇    

基于分解组合法的三维景观网络共享

曾文华   

  1. 浙江大学 地理信息科学研究所, 杭州 310028
  • 收稿日期:2015-05-27 修回日期:2015-07-06 出版日期:2015-10-10 发布日期:2015-10-14
  • 通讯作者: 曾文华(1976-),男,浙江建德人,教授级高工,硕士研究生,主要研究方向:地图学、地理信息系统、地理空间数据交换和共享,mapz@sohu.com
  • 基金资助:
    地理空间信息工程国家测绘地理信息局重点实验室经费资助项目(201411)。

3D geoinformation network sharing based on decomposition and combination method

ZENG Wenhua   

  1. Institute of Geographic Information Science, Zhejiang University, Hangzhou Zhejiang 310028, China
  • Received:2015-05-27 Revised:2015-07-06 Online:2015-10-10 Published:2015-10-14

摘要: 各地的数字城市建设积累了大量城镇区域的三维景观数据,但因为采用的标准规范、技术路线不同,之间不能互相共享和应用而成为"信息孤岛"。针对社会、公众三维景观网络在线共享的需求,分析三维景观数据内容、数据组织等标准规范和共享要求,比较二维、三维地理信息数据共享模式和集成机制,研究三维景观在线发布技术,提出基于分解组合法的跨地区三维景观在线共享的基本思路和技术路线,通过将三维信息在服务端分解为地形、影像、模型等组成单元,利用标准的地理信息服务发布,在客户端利用HTML5实现三维信息的组合和表达。通过省、市、县三级的共享实验表明,该方法对现有三维景观成果进行少量的改造就能够有效地实现共享。

关键词: 三维地理信息, 三维景观, 分解, 组合, 在线共享

Abstract: People have accumulated a large number of 3D landscape data during the construction of digital city. 3D landscape application becomes "island of information" because of the difference of its standard criteria and technical route. Aiming at the public demand of 3D landscape online sharing, the standard of 3D landscape data's content and organization and sharing requirements were analyzed. Second, the research on the network sharing technique was conducted through comparing the sharing and integration mechanism between 2D and 3D geographic data. At last, the ideas and technical route of trans-regional 3D landscape online sharing based on decomposition and combination method were presented. This approach decomposed 3D information into various components such as terrain, image, model, etc. It used standard geographic information service and implemented construction and visualization of 3D information with HTML5 on the client. The simulation results demonstrate that this proposed method can effectively restructure 3D landscape model, and realize resource sharing among province, city and county with a little change.

Key words: 3D geographic information, 3D landscape, decomposition, combination, network sharing

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