Rectification and Formal Description of 3D OO-solid Model

The study of three dimensional geological modeling is a very important topic.Discussing the modeling principle and the advantages and disadvantages of 3D OO-solid model,primitives of OO-solid model,such as node(cru-node,inner-node,isolated-node,reference-node,interpolated-node,and feature-node),arc(feature line),polygon,region,component face(polygon face,component side face,component up-down face) and component,were modified.Conceptual model and logical model of OO-solid model are redesigned.Above research not only benefits muti-source data modeling,upgrades auto-modeling,facilitates dynastic updating of geological model,also favors seamless integrating with other models,such as TIN.In addition,used the methods which integrated object-oriented with set,primitives of OO-solid model and the spatial objects,such as point,line,surface,volume which including simple volume,complex volume,composite volume,were strictly defined and formally described from the topology.