Wide-range high-precision matched digital channel three-dimensional visualization method
A digital waterway and large-scale technology, applied in image data processing, instruments, calculations, etc., can solve the problem of huge amount of data and information, and achieve a strong sense of immersion and realistic visual effects
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[0035] Taking the construction of the Yangtze River waterway (Jiangyin Bridge to the Yangtze River Estuary) 3D visual model library as an example, the specific implementation methods are as follows figure 1 As shown, the detailed description is as follows:
[0036] 1 Waterway data analysis and organization
[0037] 1.1 Channel data analysis
[0038] (1) Terrain analysis. The channel of the Yangtze River is a tidal section from below Jiangyin. The channel is wide and the shoreline is often blurred. The islands and shoals in the middle of the river change frequently, and the channel changes frequently. The main shoals are Fujiangsha, Tongzhousha and Baimaosha. Therefore, the terrain model of the channel should conform to the geographical information provided by the contour (depth) line data on the nautical chart, and meet the operator's need for landmark positioning such as contour line recognition of land objects and scene map recognition and underwater The needs of waterway...
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