Based On Borehole Data Three-dimensional Visualization Of The Stratum

How to build the stratum structure of geological exploration area that based on borehole data, has been an important research subject in academic circles. Paper combining geological borehole data of Zhaolou Coal Mine in Juye, mainly research on three-dimensional visualization of the coal mine characteristics combination. the main study includes:TIN subdivision reconstruction algorithm. While interpolate on TIN which construction is completed, it will lead to reconstruct the original triangulation. This requires positioning the interpolated points, and the triangular network where the interpolation point must do a partial adjustment. This work needs large amounts of computation. In this paper, we will discuss how to determine the insertion point's locations, improve triangulation reconstruction's speed, and gave a mid-point algorithm to avoid positioning internal interpolation points, and do direct internal reconstruction of the triangle in order to fast interpolation quality refinement of Delaunay triangulation based on the existing triangulation irregular network.Applications of parallel computing Kriging interpolation algorithm. there are good performance that using Kriging interpolation method in the calculation of ground insertion, but limited by its own principles, it is also have very high computational complexity. In order to improve computing speed, the parallel computing Kriging algorithm has been studied in this paper, mainly using a coarse-grained to assigning task, medium size to adjust the load balancing. The paper guaranteeing parallel computing acceleration, while taking into account the system load balancing. Shorten the time interpolation.Three-dimensional display system design and implementation. Based on the above algorithm research, the three-dimensional visualization system formation have been realized. It has been given in this paper that the platform architecture, the design process, a detailed description of each module, and the display the results of the renderings. In the system design process, using the thinking that reference the object-oriented, use of container- object model to build and describe the display of the virtual scene. System uses the OpenGL interface, and the Qt platform to realize, in order to ensure the system's portability and efficiency.Through in-depth research on constructing algorithm of three-dimensional model formation based on geological drilling data, we use the midpoint subdivision algorithm, kriging interpolation algorithm and the OpenGL graphics interface technology to complete three-dimensional modeling of strata to achieve a three-dimensional visualization system formation. The system can automatically construct the original data of geological strata to a drilling three-dimensional model, and can be manipulated with muti-rotation, scale, move and split, in order to visually display information about the strata.