摘要
针对3维矿床地质体既具有复杂的几何形态特征,又具有连续的矿化分布与控矿作用分布等空间分布场特征,结合3维地质建模软件Datamine的可视化环境,基于线框模型研究了地质体实体建模与3维可视化过程;在此基础上将实体模型离散化输出为体素模型,提出采用趋势面分析方法和基于数学形态学的分析方法进行地质体空间形态分析,比较和研究了这两种方法提取地质体空间趋势形态和形态起伏特征的过程。实例研究和论证了基于数学形态学滤波的地质体空间形态因素分析和提取方法处理某方向上存在有超覆现象的可行性。
All kinds of geological bodies have various shapes and continuous distribution-field characteristics with ore-controlling action and the distribution of ore bodies in the 3D mineral deposit. Under Datamine software environment, the 3D entity modeling process and visualization for geological bodies are practiced, and the entity model is turned to output for the voxel model. Compared to the trend-residue analysis method with the adaptability and limitation, a geological bodies＇ modality analysis and extraction method based on Mathematical Morphology is presented. By this method, geological bodies＇ modality extracting procedure is studied with a practical example, the results show that this method is valid.
出处
《地理信息世界》
2008年第5期33-38,共6页
Geomatics World
基金
国家自然科学基金资助项目(40571122)
湖南省自然科学基金资助项目(07JJ6071)
关键词
地质体
3维可视化
形态分析
数学形态学
geological body
three-dimensional visualization
modality analysis
Mathematical Morphology
