论地质体几何造型

首次提出了地质体几何造型的概念及地质体建模的几何造型方法．运用几何造型技术和方法，导出了各种地质体（点状、线状、面状和复杂）的几何造型模型，这些模型包括地质体的几何、属性和拓扑3个方面的信息，可完整地实现地质体的信息存储、模型构造、几何分析、图形表达与构型运算．地质体几何造型从理论上和方法上解决了地学各领域中的基础性问题──地质体的模型构造和表示．长期以来未取得任何进展的地测图件自动生成难题的解决即是其实例之一．

STUDY ON GEOMETRIC MODELING OF GEOLOGIC BODIES

For the first time, the concept and techniques of geologic bodies' geometric modeling are proposed in this paper. By applying geometric modeling techniques in geologic bodies, the authors have derived the models of point--like, linar, planar and complex geologic bodies, whose models bear geometric, topologic and attribute information, and with whose models we can carry out information storage, model construction, geometric analysis, geometric modeling operation, rendering and plotting of geologic bodies. Geometric modeling of geologic bodies has theoretically and practically solved the basic topic in geoscientific fields, i. e. the modeling and representation of geologic bodies. For example, it has realized the automated generating and plotting of geology--survey maps, a difficult topic which remained unsolved for a long time.