基于FME的点云数据生成公路纵横断面解决方案  

Solution of Point Cloud Data Generating Road Longitudinal and Cross Section Based on FME

作　　者：邹世锋[1] 陶彣君[1] 秦昌威[1] 华辉 ZOU Shifeng;TAO Wenjun;QIN Changwei;HUA Hui(Hubei Institute of Land Surveying and Mapping,Wuhan 430010,China)

机构地区：[1]湖北省国土测绘院,湖北武汉430010

出　　处：《地理空间信息》2023年第11期94-97,共4页Geospatial Information

摘　　要：为解决传统公路纵横断面测量效率不高、精度较低的问题,提出了一种以LiDAR为外业数据采集手段,利用FME编写解决方案实现内业数据自动处理并完成纵横断面提取的方法,并在实际工程应用中进行了可行性验证。首先介绍了传统测量手段的不足和新技术的优势,再分析了纵横断面测量的相关要求,然后利用FME编写了一套从DWG设计线、桩号和左右宽数据、点云LAS数据中自动提取纵横断面数据的程序,最后分析了该方法在测量效率、精度、流程等方面的优势,为基于点云数据的公路纵横断面测量提供了有益参考。In order to solve the problem of low efficiency and low accuracy of traditional road longitudinal and cross section measurement,we proposed a method of taking LiDAR as field data acquisition method,using FME to compile a solution to automatic processing data and extract longitudinal and cross sections,and carried out feasibility verification in practical engineering applications.Firstly,we introduced the shortcom-ings of traditional measurement means and the advantages of new technology,and analyzed the relevant requirements of longitudinal and cross section measurement.Then,we used FME platform to compile a program that could automatically extract longitudinal and cross section data from DWG design line,pile number,left-right width data and point cloud LAS data.Finally,we analyzed the advantages of this method in terms of measurement efficiency,accuracy and process,which could provide a useful reference for road longitudinal and cross section measurement based on point cloud data.

关 键 词：点云数据 纵横断面 FME 抬杆法 相对中桩法 

分 类 号：P258[天文地球—测绘科学与技术]