虚拟城市构建中地形数据的互操作研究与实现

地形数据是虚拟城市构建过程当中必需的三种最重要的数据之一，由于虚拟城市构建中采用的方案各异，使用的软件和硬件平台也不尽相同，因而各方案能够接受的地形数据格式也存在很大的差异，因此在不同软件、硬件平台下不同格式的地形数据之间共享对于虚拟城市的快速构建起着至为重要的作用。该文以五种国内外最常见的地形数据作为本次研究的对象，并从地形数据共享出发，在摒弃传统的数据转换共享模式情况下，采用基于公共标准的地形数据互操作共享模式来进行地形数据的共享研究，最后并对其进行了实现。

Research and Implementation of Data Interoperability of Terrain Data in the Construction of Virtual City

Terrain data is one of the three most important source data in the process of Virtual City construction. Because the plans for the construction of the Virtual City are different, so the software and hardware used are different, and the terrain data accepted by different projects are diffenent, so the sharing of terrain data with different format plays a very important role in the rapid construction of Virtual City. This paper takes the most popular terrain data both domestic and aborad as the research object, and then based on the data sharing , and giving up the mode of the traditional data sharing, we choose the data sharing mode of terrain data interoperability based on public standard. In the end,we researched it and got successful result.