Preprocessing of "points cloud" data and surface reconstruction are the critical technology of reverse engineering and are the premises of building product CAD model.
“点云”数据的预处理和曲面重建技术是反求工程的关键技术，是产品CAD模型建立的前提。
Virtual Architecture is defined as the 3d model of building, which employ both CAD utensils and Graphics technology.
虚拟建筑是指使用CAD工具和真实感图形绘制技术建造的三维建筑模型。
Mainly include the following contents: 1 the present situation about the application of CAD technology in the structural design of building.
主要包括以下几方面内容：1当前CAD技术在土木结构设计中的应用情况。
Virtual Architecture is defined as the 3D model of building, which employ both CAD utensils and Graphics technology.
提出了针对机载激光雷达点云的建筑物三维模型提取方法。
Virtual Architecture is defined as the 3D model of building, which employ both CAD utensils and Graphics technology.
提出了针对机载激光雷达点云的建筑物三维模型提取方法。
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