Optimization and experimentation for 3D Topological Data Model based on component

After simply introducing the theory about the Component-based Topological Data Model for 3D Geology Modeling(3DGM),the paper analyzed the model's deficiency in modeling conditions and dealing with the relationship between two geologic objects.And then,expands the conditions and optimizes the data structure of the model when appears two unparallel sections or some partings.The experiment result validates the optimized model is practicable.