基于FME的雪山等高线自动处理方法

Automatic contour processing of snow mountain based on FME

雪山面与等高线的关系处理是改化工程数据编辑环节的一项重要工作,人工作业费时费力,严重影响项目生产进度。本文在分析雪山等高线处理需求难点的基础上,构建基于FME的雪山等高线自动处理流程,实现伸入雪山面和伸出雪山面的等高线自动裁切及未搭接雪山面等高线的自动捕捉,并利用改化工程作业包数据进行效果验证。结果表明,处理约150000条等高线耗时仅23 min,并经人工检查验证了自动处理结果稳定可靠,能够显著降低人工手动处理任务量,为项目的如期完成提供坚实支持。

The processing of the relationship between snow mountain surface and contour line is an important work in data editing of modification engineering.Manual operation is time consuming and laborious,which seriously affects the production progress of the project.Based on the analysis of the difficulties of snow mountain contour processing,this paper proposes an automatic processing process of snow mountain contour based on FME to realize automatic clipping of contour lines extending into and out of snow mountain surface and the automatic capture of contour lines of non overlapping snow mountain surface.The results show that it takes only 23 minutes to process about 150000 contour lines.After manual inspection and verification,the automatic processing results are stable and reliable,which can significantly reduce the manual processing tasks and provide robust support for timely completion of the project.