Method of building 3D geological model from sections for gravity & magnetic interactive interpretation

摘要

We propose a approach to construct geological models in the process of 3D interactive interpretation for gravity and magnetic anomalies. This method is called “RBLM“ which build 3D geological body from sections. Firstly, we introduced the steps of method. It include some auxiliary vertexes and sections technology. Then, the forward algorithm of the model is given. And the data structure of the model is devised, later the edit method and visualization method is discussed.this method is realized in my 3D gravity & magnetism anomaly interpretation system based on VC++6.0 and OpenGL. Using this method, the interpreter can edit the geological models easily. And the system can give them a visual 3D models, so it enhance the efficiency of the interpretation.