At present, the application of three-dimensional GIS becomes more and more widespread gradually, but due to the
defect of representing time, four-dimensional GIS based on spatial-temporal expression is facilitated to emerge and
progress. Combined with developing the 3D dynamic demonstration of Tianjin center fishing port, this paper
researches the mass data and animated simulation of building process and provides an approach that the data is dealt
with in the way just as 2D map does such as classification and partition to get clarified data. At the same time, a scene
integration method is proposed by dividing a large-scale 3D scene to several sub-scenes with a number of levels and
various covering areas. And through editing and synthesizing the commentary, time axis and flight routes, the dynamic
simulation and automatic demonstration are achieved. Based on the study above, a system of simulating and
illustrating the port building process is designed and implemented.
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