摘要
建筑的平立剖面图不仅包含结构线框矢量要素,更包括材质信息、尺寸标注等属性信息和整饰要素,而且平立剖图能够准确直观地表达出建筑物的真实状态,因此对历史建筑的保护有着重要作用。通过对建筑点云进行切片生成切片点云,然后借鉴图像栅格形式组织切片点云,将落入栅格内部的点云特征点重心化得到轮廓特征点,基于双向行列直线段连结方法构建点云轮廓特征线,生成建筑的平立剖面图。与传统的平立剖图绘制方法相比较,该方法可减少人工操作,提高绘制效率。
The plane and fa ade section drawings of a building contain vector elements of structure wireframe, as well as the attribute information like materials, sizes, and decoration information. The plane and fa ade section drawings can accurately and visually show the real state of the building, which is essential to the protection for the historic buildings. By slicing the point clouds of the building, the slice point clouds could be obtained. The slice point clouds were organized with reference to- the image grid form. The contour feature points were obtained by barycentring the feature points in the grid. Then the contour feature lines were established on the basis of the connection of two-way cortege line segments. Finally, the plane and facade section drawings of the building were created. By comparison with traditional drawing methods for the plane and facade sections, the method put forward in this paper can reduce the manual work and increase efficiency.
出处
《江西科学》
2017年第2期314-317,共4页
Jiangxi Science
基金
嘉兴市科技计划项目"基于旋翼无人机的农业及城市用地地形图快速生成方法研究"(2016AY23107)
关键词
建筑点云
切片点云
特征轮廓线
平立剖图
point clouds of buildings
slice point clouds
feature contour lines
plane and facade section drawings
