梁其洋,潘瑜春,郝星耀,吴保国

• 1:湖北工程学院计算机与信息科学学院
• 2:北京林业大学信息学院
• 3:国家农业信息化工程技术研究中心
• 4:农业农村部农业信息技术重点实验室

摘要(Abstract)：

针对当前大多数灌溉渠道工程三维建模过程效率低、模型难以复用的问题,该文提出一种基于参数化的渠系三维建模方法。利用三维GIS技术,以渠道三维中心线和横断面参数为基础,辅以周边地形,采用横断面放样法生成单体模型、中心线平移法生成渠道交叉口,基于模型运算将上下级渠道组合在一起,基于地形编辑将渠道模型与周围地形进行无缝集成。实现了复杂断面类型的渠道三维信息模型在真实坐标下的设计与展示,解决了渠道交叉、分支以及与地形分离的问题,取得了较高的土方量计算精度。实例分析表明,应用参数化建模方法能够基于真实的地理数据建立三维场景,提高了建模效率和模型精度。

关键词(KeyWords)： 三维建模;灌溉渠系;参数化建模;三维GIS

Abstract:

Keywords:

基金项目(Foundation): 国家重点研发计划课题项目(2016YFD0800904)

作者(Author): 梁其洋,潘瑜春,郝星耀,吴保国

DOI: 10.16251/j.cnki.1009-2307.2020.05.026

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