水文要素等值线图的自动绘制方法  

Automatic Plotting of Hydrologic Elements Contour Map

作　　者：李少华[1] 董增川[1] 杨爱丽 

机构地区：[1]河海大学水资源环境学院,江苏南京210098 [2]山东省唐村水库管理局,山东平邑273300

出　　处：《水文》2004年第6期23-25,31,共4页Journal of China Hydrology

摘　　要：降雨量、地下水位等水文要素常常需要用等值线图来直观地反应。介绍了反距离加权插值算法和三角网格的等值线追踪方法,并用面向对象的C++编程语言封装为TContour类。应用结果表明,TContour类的插值和追踪方法快速高效,算法描述简洁且易于维护升级,可广泛应用于水文要素等值线图的计算机自动绘制,同时大大方便了软件系统的系统集成。Contour map is often used to display the spatial distribution of some hydrological elements, such as rainfall, groundwater level and etc. This paper introduces the weighted interpolation algorithm of inverse distance and the contour tracing method in triangle unit. The plotting method of contour map is encapsulated as TContour class with C++ programming language, which has the characteristics of simplification, high efficiency and good expandability. TContour can be widely used for the automatic plotting of hydrologic elements contour map, and is helpful to the software integration.

关 键 词：等值线图 自动绘制 面向对象 水文要素 

分 类 号：P337-39[天文地球—水文科学]