【作者】 陈明晶； 方源敏； 李国柱； 孔璧；

【Author】 CHEN Mingjing;FANG Yuanmin;LI Guozhu;KONG Bi;Faculty of Land Resource Engineering,Kunming University of Science and Technology;Kunming Surveying and Mapping Institute;

【机构】 昆明理工大学国土资源工程学院； 昆明市测绘研究院；

【摘要】 基于离散点的空间实体三维建模是当前的研究热点。传统的三维建模算法均将离散点视为固定框架点,在点位不动的条件下完成空间实体的建模。随着现代测量技术的快速发展,测量精度越来越高,甚至出现了精度富余和过剩的情况。围绕这个特点,针对总体上呈轴向分布的离散点集,提出了一种新的空间实体三维建模算法,在不影响视觉效果和空间分析精度的前提条件下,该算法将离散点沿着轴线方向在一定的范围内进行移动,并以离散点移动后的点位进行空间实体建模。该算法具有一定的创新性,同时实验证明了该算法的正确性和可行性。更多还原

【Abstract】 3D modeling of spatial entity based on the discrete points is the present research hotspots. Traditional algorithm of 3D modeling regards discrete points as fixed frame points to realize the spatial entity modeling under the condition of the unchanged position of the points. With the rapid development of modern measurement technology, measurement accuracy is getting higher and higher, even appearing the redundancy or excess of accuracy. According to this feature, aiming at generally axial distributed discrete point set, a new 3D modeling algorithm for spatial entities is proposed, which does not affect the visual effect and spatial analysis accuracy as the prerequisite. Moving the discrete points in a certain range along the axis and establishing spatial entity modeling by using the position of them. This algorithm is creative and has been proved to be correct and feasible.更多还原