基于IDW插值的测量数据等值线生成方法

航道测量是航道维护管理的重要工作,而测量数据的内业成图是电子航道图、数字航道等运行的数据基础。针对传统等值线绘制与检查流程耗费大量人力与工时的问题,采用IDW(反距离加权)插值方法与ArcGIS工具,设计了等值线生产方法与优化方案,并以此开发等值线生成平台。实践表明:新的等值线生产方法具有较高的生产效率,等值线生成平台可以推广应用于航道内业制图。

The method of contour generation using measurement data based on IDW interpolation

Waterway survey is an important work of waterway maintenance and management,and the indoor mapping of measurement data is the data basis of the electronic nautical chart,the digital waterway and other operations.Aiming at the problem that the traditional contour drawing and checking process consumes a lot of manpower and working hours in surveying and mapping,this paper uses IDW interpolation method and ArcGIS tools to design the contour generation method and optimization scheme,and then develops the contour generation platform.The practice shows that the new contour generation method has high productivity,and the contour generation platform can be extended and applied to waterway mapping.