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本文针对巷道截面类型较多、不过分强调实体结构、且巷道交叉接口处较难处理的特点,将巷道抽象为三维表面模型,提出了采用ArcGIS中的MultiPatch作为构建巷道表面模型数据结构的方法,对不同类型巷道接口的拼接算法进行了具体分析,并以山西潞安常村煤矿井下巷道为例,通过二次开发实现了矿井巷道的三维表面建模,建立了矿井巷道三维建模原型系统,取得了良好的效果。
In this paper, aiming at the fact that there are many types of roadway cross sections but do not overemphasize the physical structure and are difficult to deal with at the crossroads of the roadway, the roadway is abstracted as a three-dimensional surface model, and a multi-patch ArcGIS is proposed as the data structure of the roadway surface model. A concrete analysis is made on the stitching algorithm for different types of roadway interfaces. Taking the roadway in Changcun coal mine of Lu’an, Shanxi as an example, the 3D surface modeling of mine roadway is realized through secondary development. The prototype system of mine roadway 3D modeling is established. got a good result.