Research on Application of DSI in Fitting Geological Curved Surface

Fitting geological curved surface is the key link for 3D geological modeling, traditional methods fit the surface without taking account into the complexity of geological data, and can´t process discontinuous data efficiently. Discrete smooth interpolation (DSI) is proposed based on a discrete model, each geological datum is turned into a linear constraint, the values of Interpolation-Nodes are obtained by solving discrete smooth equations. In this paper, with making in-depth research on DSI method, we present a new approach to fit geological surface. Finally, a example of applications is taken for showing that this approach has favorable reliability and practicability.