Multi-wave Layer Label Visualization Software System Research

In the field of geophysics and information technology, it is important to express a mass of data that may be abstract or invisible directly and visually, with the aid of computer graphics and image process techniques. So visualization not only provides convenient model material for engineering design, but also is helpful to the following analysis. And it can make all information to be displayed directly, so the problems can be discovered and analyzed correctly. It is a main research direction to realize Data Visualization in this field.The design of Multi-waves Layer labeling Visualization System Software set out from the demand of workers. The Multi-wave seism data, which is on the basis of processing, can be expressed by the way of visualization. Wavelet is extracted through statistic of some trace data, following the synthetic seismogram can be gained. Finally the Layer labeling can be realized. This system realizes visualization through using the tools Qt and OpenGL, and it has a series of applied function.By the research and analysis, some achievement is gained as follows:(1) The whole course of system development kept to the theory of software engineering. From feasibility research to requirement analysis, to coding, to testing, it embodied the design principle of systematization, engineering and standardization.(2) Visualization research was performed: OpengGL was applied in graphic operation and used to realize the data visualization. Qt fulfilled the user interface design and realized the user interaction.(3) The method of texture mapping was used to realize the multicolor display of seismic profile, and it can make abundant and smooth graphic detail quickly.(4) wavelet was extracted through the theory of statistic of some trace data. The synthetic seismogram that is calculated by the convolution computation of the practical wavelet and reflection coefficient, matches with the seismogram beside the well better.