【作者】 徐莉；

【导师】 黄地龙；

【作者基本信息】 成都理工大学 ， 计算机应用技术， 2008， 硕士

【摘要】 随着计算机技术和信息产业的不断发展,CAD辅助设计在工程设计领域应用非常广泛。但是,CAD技术的应用主要是二维的,在三维方面,由于地质结构的复杂性难以得到广泛的应用,或者目前尚未得到广泛应用。基于上面原因,本文研究目的是开发基于AutoCAD强大图形交互功能和图形输出功能的数据接口的三维地质建模软件系统,重点解决从AutoCAD到三维地质建模系统的前端输入,以及三维地质建模系统到AutoCAD的后端输出,从而在实现CAD原始资料的提取为三维地质建模系统服务的同时,把三维地质建模系统处理过的模型数据输出到AutoCAD中。为了实现三维地质建模与可视化系统的前端输入接口和后端输出接口,本文主要从以下几方面开展研究:针对三维地质建模系统研究中的相关地质属性数据获取问题,研究提出了一种基于AutoCAD图形数据直接和间接提取,并给出了利用ObjectARX托管封装类编程实现AutoCAD图形数据直接提取,以及AutoCAD地质平面图部分地质属性数据的自适应、细分和聚类提取方法的基本思路和流程。这些方法应用为有效利用现有地质资料,避免重复工作,有效地解决了三维地质建模中繁重的原始地质资料的录入问题。针对三维地质模型图形输出问题,研究了实现地质综合平面图、地质剖面图导入AutoCAD中的输出问题,研究了一种有效利用三维地质建模系统完成的地质综合平面图、地质剖面图数据,自动实现岩层岩性纹理填充方法和三维地质建模系统图形与AutoCAD系统后端输出接口问题。从而,有效利用AutoCAD强大图像编辑功能和纹理属性填充功能,有效解决了地质综合平面图、地质剖面图直观地质信息表示和更吻合地质专家的习惯需要。更多还原

【Abstract】 With the development of computer technology and information industry, CAD (Computer Assistant Design) is widely used in the field of engineering design.However, CAD technology are mainly used in two-dimensional space.In three-dimensional,it is difficult to obtain a wide range of applications as the complexity of the geological structure,or have not yet been widely applied.Based on the above reasons, the purpose of this paper is to develop a three-dimensional geological modeling software system based on AutoCAD powerful graphics and interactive features and graphic output data interface.It focus on resolving the front-end output from AutoCAD to three-dimensional geological modeling system,and the back-end output from three-dimensional geological modeling system to AutoCAD.So,it achieves the extraction of raw data in AutoCAD for the three-dimensional geological modeling system services.At the same time,it carries out the model data dealt by the three-dimensional geological modeling system to output in AutoCAD.For the implement of the front-end input interface and the back-end output interface, main research work in this paper expressed in the following areas:Aimed at the need of geological data in the three-dimensional geological modeling system, the paper introduces direct and indirect methods to extract the data from AutoCAD graphics, and gives the basic ideas and processes of direct extraction method, used ObjectARX managed wrapper classes.It also gives the relevant methods of indirect extraction method. It is a fast and effective way to get geological data.For three-dimensional geological model graphics output problem, the paper studies on the implement of 2D map output in AutoCAD.Effective methods to fill the region with texture automatically and to carry out the back-end output interface from three-dimensional geological modeling system to AutoCAD are studied.These methods are using the data deduced by three-dimensional geological modeling system. Thus, effective using AutoCAD powerful image-editing and texture attributes hatch functions, it achieves intuitive geological information indication of 2D map in AutoCAD, and it is in accord with the habit need of geological experts.更多还原