空间可视化复杂矿体剖面三角拼接算法研究

Complex Orebody Spatial Visualization Orebody Profile Triangulation Algorithm

对复杂矿体三维可视化建模过程中所涉及的剖面拼接技术进行了深入研究,并针对复杂矿体剖面中出现的剖面间不规则位置与规模、凹剖面线间三角拼接、末端凹剖面线内的三角拼接、分支复合及剖面对应拼接等,利用最小外接矩形框、凹剖面线的凸包投影及凸点剔除法提出了相应的剖面拼接算法,最后进行了仿真验证,实例应用表明该算法能够有效地构建三维复杂矿体,准确地模拟真实复杂矿体的三维结构及分布情况。

Profile splicing technology of 3D visualization modeling of complex ore body is studied. According to the complex orebody profile appeared in the section between the irregular location and scale, concave profile line, triangle between the splicing end concave profile lines within the triangle joint, branch composite and profile corresponding stitching. Minimum circumscribed rectangular box, concave profile line of the convex hull of projection and bump rejection method are put forward the corresponding profile stitching algorithm. Finally, the simulation has been carried and verified. The examples show that this algorithm constructs 3D orebody effectively, and it can also simulate the real complex three-dimensional structure and distribution of ore body accurately.