| In this paper,we study the fault of small fault and the fault of fault along the fault plane.Through the analysis of the whole process of 3D geological modeling,in spite of the triangular mesh intersection with collision detection in a process of elimination of disjoint triangles and improve triangular mesh intersection efficiency,but the level of information in the intersection join requires limited remeshing and can not solve the bending around the surface intersection processing.On the basis of this paper proposes a local triangulation method,this method only for the actual intersection of Triangle Limited remeshing to shorten the time required for the calculation of intersection points;using the method of cesarean section at the present stage of 3D geological modeling are the mesh face is projected onto the PCA surface,the advantage of speed because,bending around the mesh can not find PCA,so can not handle bending around the grid surface triangulation problem.The local subdivision method can only define the subdivision of a single triangle and its intersection line,so it can not be folded,and then,to some extent,it solves the problem of the intersection of the folded mesh surface.Ground surface along the faultdislocation is a simulated geological activity surface modeling technology of 3D geological model,and the level of fault plane intersection based on different,this paper provides interactive and automatic fault dislocation two surface modeling method,providing effective and practical activities to provide effective simulation technology.Method for the simulation of geological activities and according to other data sources and user experience of 3D model of adjustment,but also provides according to the existing data for the detection and provide a basis for.Finally,in order to ensure the topological consistency of the 3D model,this paper provides a method of intersecting line locking to write the fault line information into the fault plane. |
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