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Abstract-We proposes a three-dimensional visualization modeling method of multilayer stratum by the DEM data, including the longitude, latitude and depth information. The interactive environment is mainly supported by a Pythonembedded plotting library, Matplotlib. We adopted the DEM data to create the upper and lower surfaces of each stratum, which is the core component for stratum construction. To reinforce the visual perception of three-dimensional effect, we chose the appropriate angle of light and shaded the surfaces with geophysical map. The challenging point of this research is located in the creation of the solid between adjacent surfaces. Our solution is to extract the surface edge points according to the data storage structure, and generate 4 side surfaces for each stratum based on the polygon plotting principle. Consequently, a three-dimensional visualization model of multilayer stratum has been created.

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