三维模型位置内业精度检测新方法研究

The Research on a New Method for Verifying the Position Accuracy of Three-Dimensional Models

现行三维模型位置内业精度检测采用AutoCAD和街景工厂两款软件进行,软件间频繁切换特征点的人工查找导致工作效率低下;在精度统计过程中,采用人工方式进行内外业检测点匹配,耗费时间长。针对此系列问题,本文提出一种借助SuperMap的三维可视化技术[1-2],采用SuperMap iObjects.NET二次开发[3]的方式实现三维模型位置内业精度检测的新方法。在简要阐述现行方法的基础上,详细论述新方法的技术路线及实现过程,通过实例验证新方法较现行方法在作业效率上有显著提升。

AutoCAD and Street Factory are often used to verify the position accuracy of three-dimensional models in practice.Frequent switching between softwares and manual searching of feature points lead to inefficient work.In the process of accuracy statistics,manu-al matching between internal and external check points takes a long time.Aiming at this series of problems,by employing a three-di-mensional visualization technology[1-2]based on SuperMap,this paper presents a new method for position accuracy verification of three-dimensional models,which is realized by using SuperMap iObjects.NET secondary development[3].On the basis of a brief description of the existing methods,the technical route and implementation process of the new method are discussed in detail.As compared with the existing methods,the experiment shows that the new method has significantly improved the operational efficiency.