【摘要】 本文主要阐述DLG产品生产过程中遇到的一些问题,以及如何编程实现原有矢量数据内在属性的自动转换。该程序运行效率高,一幅包含上万条地理要素的图,涉及十几个数据表游历一遍只需几秒钟时间,在文章的最后给出其中部分过程的VB语言描述。更多还原

【Abstract】 Some problem during the process of DLG production is mentioned in detail, the automatism transform of inwardness of raw vector data is introduced by programming. This program is running effectively. It costs only several second to travel a map which include a great number geography element and ten thousands of data sheet one time . In the final, some language describing of VB is given in this paper .更多还原