Incision Analysis Technology and Method for 3D Geological Structure Model

In order to exhibit internal details of a model,it needs to process 3D model's analysis such as cutting,digging and so on.This paper,based on spatial triangle network cutting algorithm——TriCut,brings out a new algorithm to create single block's planar section.This algorithm can realize automatic,quick and exact creation of complex block's planar section.And based on this algorithm,arbitrary incision analysis function of geological model is finished which includes creating 3D section chart and bar chart,digging pit,tunnel modeling and so on.