测绘通报 ›› 2023, Vol. 0 ›› Issue (10): 154-157.doi: 10.13474/j.cnki.11-2246.2023.0312

• 技术交流 • 上一篇    下一篇

实景三维建模中的建筑物mesh模型立面修整

杨永林, 刘东, 刘洋, 石现, 王双雨, 谭钿   

  1. 机械工业勘察设计研究院有限公司, 陕西 西安 710043
  • 收稿日期:2023-03-10 发布日期:2023-10-28
  • 通讯作者: 刘洋。E-mail:1127328357@qq.com
  • 作者简介:杨永林(1970-),男,硕士,教授级高级工程师,主要从事测绘新技术研发工作。E-mail:568368936@qq.com

Building mesh model facade trimming in real 3D modeling

YANG Yonglin, LIU Dong, LIU Yang, SHI Xian, WANG Shuangyu, TAN Tian   

  1. China JIKAN Research Institute of Engineering Investigations and Design, Co., Ltd., Xi'an 710043, China
  • Received:2023-03-10 Published:2023-10-28

摘要: 实景三维模型作为实景三维中国建设中的数据底座,发挥了极其重要的作用。建筑物mesh模型作为实景三维模型中重要的数据,其质量好坏直接影响着实景三维模型的使用效果。本文结合实际工程经验,提出了一种批量化的建筑物mesh模型立面修整方法。首先,以ContextCapture软件生成的实景三维模型为基础,采集建筑物的矢量轮廓线;然后,利用参数化建模软件批量生成平整的建筑物三维矢量面,自动完成建筑物立面到三维矢量面的吸附,使建筑物立面结构平整;最后,以修复好的建筑物mesh模型为参考,在ContextCapture软件中进行建筑物mesh模型纹理映射,批量完成建筑物mesh模型的更新。通过多个试验场景测试,验证了该方法的有效性和高效性。

关键词: 实景三维, 建筑物mesh模型, 立面修整, 整平, 批量

Abstract: As the data base in the construction of 3D real scene in China, 3D real scene model plays an extremely important role. Mesh model of building is an important data in the real 3D model, and its quality directly affects the use effect of the real 3D model. Based on practical engineering experience, a mass mesh model facade dressing method is proposed. Firstly, vector contours of the building are collected based on ContextCapture 3D model. Secondly, the parametric modeling software is used to generate the flat three-dimensional vector plane of the building in batches, and the adsorption of the building facade to the three-dimensional vector plane is automatically completed to make the building facade structure flat. Finally, taking the restored building mesh model as reference, the texture mapping of the building mesh model is carried out in ContextCapture software, and the batch update of the building mesh model is completed. The effectiveness and efficiency of the proposed method are verified by several test scenarios.

Key words: real 3D, building mesh model, facade trimming, levelling, batch

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