基于地形瓦片的地形分析快速计算方法研究  

Research on fast calculation method of terrain analysis based on terrain tiles

作　　者：赵鹏辉 霍亮 朱杰[3] 张正雄[1] 宋继哲 Zhao Penghui;Huo Liang;Zhu Jie;Zhang Zhengxiong;Song Jizhe(School of Geomatics and Urban Spatial Information,Beijing University of Civil Engineering and Architecture,Beijing 102616,China;Key Laboratory of Modern Urban Surveying and Mapping,National Administration of Surveying,Mapping and Geoinformation,Beijing 102616,China;National Geomatics Center of China,Beijing 100830,China)

机构地区：[1]北京建筑大学测绘与城市空间信息学院,北京102616 [2]现代城市测绘国家测绘地理信息局重点实验室,北京102616 [3]国家基础地理信息中心,北京100830

出　　处：《矿山测量》2020年第4期105-108,113,共5页Mine Surveying

摘　　要：在常规硬件条件的网络地理信息系统环境下,进行地形数据的计算,会降低其计算效率。文中提出一种基于地形瓦片的地形快速分析方法,该方法首先构建了含有地形因子的自定义地形瓦片,其次提出了一种基于自定义地形瓦片的地形分析快速计算方法,根据地形瓦片的等级,实现了对地形数据进行分层的计算。实验结果表明,该方法提高了地形分析效率,在保证精度的前提下可以满足地形的快速分析。The calculation of terrain data under the network hardware information system environment of conventional hardware conditions would reduce the calculation efficiency. In this paper,a fast terrain analysis method was proposed based on terrain tiles. Firstly,the custom terrain tiles with terrain factors were built by the method. Secondly,a fast calculation method of terrain analysis was proposed based on custom terrain tiles. The level calculation of the terrain data was realized. Experimental results showed that the efficiency of terrain analysis was improved,and the rapid analysis of terrain could be met under ensuring the accuracy.

关 键 词：地形瓦片 地形因子 地形分析 多尺度 金字塔模型 

分 类 号：P208[天文地球—地图制图学与地理信息工程]