基于改进的八叉树算法三维地质建模技术研究

研究地质构造建模问题,为了能够真实反映三维地质体真实形态,针对传统的三维空间数据模型方法难以真实反映现实三维地质体的形态,提出了基于多尺度八叉树细分算法来真实构建三维地质体模型。基于八叉树细分算法的地学对象表达满足了数据多尺度组织和地质体及属性多尺度划分的需求,同时以空间体元建立起了各种地学对象之间的联系,为空间分析奠定了基础,且地质有了数字上的三维显示。经实验证明,本文提出的地质体建模是一种基于八叉树细分算的方法,这种方法可以应付各种复杂常见的地质条件,且准确度高。

Modeling Method of 3D Geological Digital Representation Based on Octree Algorithm

The visualization of three-dimensional geological modeling was studied.Multi-scale three-dimensional geological modeling and visualization is a challenging task,and traditional methods can not reflect the real world three-dimensional shape of geological bodies.In order to truly reflect the real three-dimensional shape of geological bodies,the paper proposed an octree-based multi-scale segmentation algorithm to construct three-dimensional geological model.Octree-based subdivision algorithm meets the requirements of multi-scale classification of OBJECT multi-scale organizations and geological properties of the body,and the volume element of space is used to build a variety of links between geological objects,which laid basis for the spatial analysis.Simulation results show that the proposed octree subdivision geological modeling method is effective for three-dimensional geological data and provides a basis for multi-dimensional analysis.