三维激光点云矢量化成图编辑工具设计与实现

Design and Implementation of Editing Tool for Vector Mapping from 3D Point Cloud

激光扫描技术已成为获取大比例尺数字地形图的重要手段,由于点云数据获取时存在点密度不均、遮挡等问题,兴趣地物的自动化提取及矢量化结果存在漏提和错提现象,因此,需要对这些矢量结果进行人工编辑得到最终产品。本文描述了基于OSG引擎开发三维矢量编辑工具的方法和编辑操作的整个流程,实现了图形管理、要素编辑等功能,提出了适用于编辑功能的相关算法。

Laser scanning technology has been an important means of making the large scale topographic map. Because there are some problems such as uneven density and occlusion when acquire point cloud data, extraction leakages and errors existing in the automated extraction of interest target feature and vector quantization result. So manual editing of vector result is necessary for getting the final product. This paper describes the method of developing three-dimensional vector editing tool and the process about editing operation, realizes the functions of graphics management, feature editing, etc., and proposes related algorithms suitable for editing functions.