基于GDAL开源库的流域地貌特征提取  

Watershed geomorphic feature extraction based on open source library GDAL

作　　者：胡友兵 王秀庆[2] 阚光远[3] 苏翠 赵梦杰 

机构地区：[1]淮河水利委员会水文局(信息中心),安徽蚌埠233001 [2]淮河水利委员会沂沭泗水利管理局,江苏徐州221009 [3]中国水利水电科学研究院防洪抗旱减灾研究所,北京100038

出　　处：《水利信息化》2017年第6期41-45,共5页Water Resources Informatization

基　　金：国家重点研发计划(2016YFC0402703);水利部公益性行业科研专项经费(201401027;201501007)

摘　　要：GDAL是一个在X/MT许可协议下读写栅格、矢量空间数据的开源库,针对水文学上流域地貌特征提取研究中与栅格、矢量数据的频繁交互,引入GDAL地理空间开源库。分析GDAL模型库结构,空间数据打开、读写及转换等数据交互常用接口,在底层将上述接口与地貌参数提取算法无缝耦合。在.Net平台上,利用轻型SharpMap开源空间数据渲染控件作为显示窗体,开发独立地貌参数提取应用程序;在ArcGIS平台上通过ArcPy脚本语言包搭建地貌参数提取工具箱,通过图解建模工具可以将其中的工具与ArcGIS相关工具进行组合,构建一键地貌提取模型,为流域地貌特征的提取计算提供一条简便实用的技术路径。GDAL is an open source library for raster and vector geospatial data under an X/MIT license. Against onfrequent interaction between geographical raster and vector data in watershed geomorphology extraction of hydrology,the GDAL geospatial open source library is introduced. It analyzes on the model structure of GDAL and some commonuse interface like geospatial data open, read, write and data convert. Geomorphic parameter extraction algorithmseamlessly couples with the interface at the bottom. An independent application program is developed on .Net platformthat use light SharpMap open source spatial data rendering control as a display window. A profession toolbox onArcGIS platform with ArcPy scripting language packages for geomorphology parameter extraction is established, bycombining it with other related tools through the graphical modeling tool. The one key geomorphology extractionmodel is built. It provides a practical technical path for geomorphology parameter extraction.

关 键 词：GDAL 开源库 流域 地貌特征 应用程序 插件 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置] P931[自动化与计算机技术—控制科学与工程]