基于DLG建库数据自动生成林业专题图的方法

Method of Automatic Generation Forestry Thematic Map Based on the DLG Database Building Data

为了更好地利用数字线划图(DLG)建库数据,以林业部门专题图制作项目为契机,研究了基于DLG建库数据自动生成林业专题图的方法。设计了可自由定制的转换规则,开发了自动转换程序,从而通过DLG建库数据和林业现状数据自动生成了林业专题图。研究成果在34个县(市、区)的林地保护利用规划现状图制作项目中得到了应用,转换程序还适用于其他专题图的制作,具有非常好的推广价值。

In order to better utilize the DLG database building data,this paper studied the automatic generation method of forestry thematic map using data DLG database.Through the design of free custom conversion rules and the development of automatic conversion program,the paper completed the conversion from DLG data to forestry thematic map.The research results had been applied to the production of forestry thematic map in 34 Cities.The conversion program also is applicable to other thematic map production,and has a very good value for promotion.