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发明公开
CN107767451A 一种基于GOCAD栅格模型的3DEC复杂地形建模方法 有权

一种基于GOCAD栅格模型的3DEC复杂地形建模方法
摘要：
本发明公开了一种基于GOCAD栅格模型的3DEC复杂地形建模方法，该方法包括以下步骤：确定研究对象范围，对范围内的地形线进行预处理；建立研究范围的三维GOCAD模型；建立研究范围的三维格栅SGrid模型；建立3DEC数值模型。本发明主要利用GOCAD格栅与边界面相一致功能，建立三维地形格栅模型充分利用GOCAD在复杂地形建模方面的优势，实现GOCAD常规三维模型向3DEC数值模型的转换，克服了3DEC在前处理方面的不足，同时，拓展了GOCAD的三维建模实际应用。
摘要（英）：

The invention discloses a 3DEC complex terrain modeling method based on a GOCAD grid model. The method comprises the following steps that the research object range is determined, and the terrain lineswithin the range are preprocessed; a three-dimensional GOCAD model of the research range is established; a three-dimensional grid SGrid model of the research range is established; and a 3DEC numerical model is established. The function of consistency of the GOCAD grid and the boundary surface is mainly utilized, the three-dimensional terrain grid model is established and the advantages of the GOCAD in the aspect of complex terrain modeling can be fully utilized to realize transformation of the conventional GOCAD three-dimensional model to the 3DEC numerical model so that the disadvantages of3DEC in the aspect of preprocessing can be overcome and actual application of GOCAD three-dimensional modeling can be extended.

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