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基于ArcGIS for Maritime的海事测绘信息数据库构建 被引量:4
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作者 林昱 杜清运 杨龙 《地理信息世界》 2016年第5期22-27,共6页
针对海事测绘信息数据的特点建立统一的数据库,对数据进行规范的组织、存储和管理是海事测绘信息数据服务海洋发展的关键环节。本文归纳了海事测绘信息数据的常见类型,针对各类数据提出了数据库构建方案,以海事测绘部门数据集为基础,进... 针对海事测绘信息数据的特点建立统一的数据库,对数据进行规范的组织、存储和管理是海事测绘信息数据服务海洋发展的关键环节。本文归纳了海事测绘信息数据的常见类型,针对各类数据提出了数据库构建方案,以海事测绘部门数据集为基础,进行了海事测绘信息建库的实践,为实现海事测绘的信息化、智能化和规范化服务探索了一条新的途径。 展开更多
关键词 ARCGIS for MARITIME 数据库构建 海图要素 海事专题数据 水深dem
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A Fast Algorithm of Cartographic Sounding Selection 被引量:3
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作者 SUI Haigang HUA Li +1 位作者 ZHAO Haitao ZHANG Yongli 《Geo-Spatial Information Science》 2005年第4期262-268,共7页
An effective strategy and framework that adequately integrate the automated and manual processes for fast cartographic sounding selection is presented. The important submarine topographic features are extracted for im... An effective strategy and framework that adequately integrate the automated and manual processes for fast cartographic sounding selection is presented. The important submarine topographic features are extracted for important soundings selection, and an improved "influence circle" algorithm is introduced for sounding selection. For automatic configuration of soundings distribution pattern, a special algorithm considering multi factors is employed. A semi automatic method for solving the ambiguous conflicts is described. On the basis of the algorithms and strategies a system named HGIS for fast cartographic sounding selection is developed and applied in Chinese Marine Safety Administration Bureau (CMSAB). The application experiments show that the system is effective and reliable. At last some conclusions and the future work are given. 展开更多
关键词 cartographic sounding selection dem TIN influence circle topology consistency
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