“三调”中线状地物图斑化流程优化

第三次全国国土调查("三调")与第二次全国土地调查相比,需要将符合上图精度的线状图层地物全部进行图斑化表示,以图斑的形式存储在数据库中。实际作业过程中,为便于后续的数据统计分析,图斑化的单线要素需要在对应的线状地物图层的特定字段中标记"3",表示该线物要素已进行图斑化处理。上述过程在实际生产中工作量大、易误操作。针对所述问题,在对数据进行对比分析后,提出了程序化解决方案,能够大幅度提高处理效率和数据质量。

Production Process Exploration of Representing Linear Features as Patches in the "Third National Land Survey"

Compared with the second national land survey,the third national land survey requires that all linear features that meet the accuracy of the above map should be represented in the form of patches and stored in the database. In actual production,in order to facilitate the follow-up statistical analysis of data,linear objects in the form of patches need to be marked " 3" in the specific fields of corresponding linear features layers to indicate that the linear features have been added to the patches. The above process results in heavy workload and easy error marking. Aiming at the problems mentioned above,after comparing and analyzing the data,a programmed solution is put forward,which can greatly improve the processing efficiency and data quality.