一种快速统计地形图中地类图斑面积的方法

土地开发整理项目需要对地类图斑的面积进行统计,但是地类数据往往是通过外业实测绘制得到的地形图,这给统计工作带来了很大的麻烦。基于这个问题,本文提出了一种由提取地类范围线、绘制地类属性点、分析点面关系、点面挂接、统计制表5个步骤构成的解决方案,并基于Auto CAD和Arc GIS进行二次开发予以实现。通过在实际生产项目中的反复应用表明,该方法可以快速完成地类图斑面积的统计,在很大程度上提高了生产的效率和质量。

A Method to Fast Statistic Land Area of Each Land-use Type in Base Map

In land development and consolidation project ,we need to statistic the land area according to the type of land-use,but the base data is often obtained by field measured and is drawn to the base map which brings a lot of trouble to the statistical work .Based on this problem ,this paper puts forward a method that is composed of scope line extraction , drawing attribute points ,the relationship analyzing between polygon and point ,linking relation and table making ,and is realized Based on secondary development to AuoCAD and ArcGIS .Through repeated use in actual production , It has been verified that the method can quickly statistic the area of each land-use type .,and to a great extent improves the ef-ficiency of production .