等值线分析系统实际应用之等值线填充

Contour Filling of Contour Analysis System Application

等值线图被广泛应用于水文、气象、地质及地形图中,文章详细介绍了应用基于GIS的等值线分析系统,对绘制好的等值线进行色彩填充的原理、方法和步骤,并借助地理信息系统求任意闭合区域面积的功能,轻松求出研究区内暴雨笼罩面积或平原区地下水漏斗的面积。填充后的等值线图比单纯的等值线图更加直观,更便于非专业人员理解。

The contour map is used widely in hydrology,meteorology,geology and topographic map.By applying of contour analysis system of GIS,based on the principle,method and procedure of color-filling for finished contour, through using the geological information system to find out the functions of free closing-area to obtain easily the storm area enveloped or groundwater funnel area in the plain.Compared with the single contour map, the contour map filled is more intuitive for the unprofessional staff to understand it.