三维矿体线框模型构建技术研究

Study on Building Technology of Three-dimensional Ore body Wireframe Model

三维矿体线框模型是构建三维矿体模型的基础,针对基于矿体平面图及剖面图自动构建三维矿体线框模型的研究有着现实意义。通过重新定义剖面图坐标系,给出平面图与剖面图、以及交叉剖面图之间的坐标转换公式,完成了平面图及剖面图坐标统一。依此为基础,按照约定的空间坐标转换规则,自动完成三维矿体线框模型构建。以具体矿体建模为例,明确建模方法步骤,实现了基于矿体平面图与剖面图组合构建三维矿体线框模型。研究表明,三维矿体线框模型构建技术包含了地质平剖自动转换修图功能,其建模成果为构筑三维矿体模型奠定基础。

The three-dimensional(3D)ore body wireframe model is the basis for building the three-dimensional ore body model.The study on the automatic building of the 3D ore body wireframe model based on the plan view and sectional view of ore body has practical significance.By redefining the coordinate system of the sectional view,the coordinate conversion formulas among the plan view and the sectional view,and the cross section view are given,and the coordinates of the plan view and the sectional view are unified.Based on this and in accordance with the agreed space coordinate conversion rules,the 3D ore body wireframe model is automatically built.Taking specific ore body modeling as an example,the steps of modeling method are clarified,and the 3D ore body wireframe model is built based on the combination of ore body plan view and sectional view.The Study shows that the building technology of 3D ore body wireframe model includes the automatic conversion and retouching function of the geological plan view and sectional view,and its modeling results lay the foundation for the building of the 3D ore body model.