Equal-depth-region-constrained nautical chart high-precision digital water depth model construction method
A construction method and technology for nautical charts, which are applied in the field of building high-precision digital bathymetry models for nautical charts, can solve problems such as deviations, and achieve the effect of improving quality and overcoming obvious deviations.
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[0063] Further explanation will be further described below with reference to the accompanying drawings.
[0064] The high-precision digital water depth model construct proposed by the depth constraints proposed by the present invention, the implementation process is the construction of the computer to implement the high-precision digital water depth model of the navigation map, assume that the existing nautical map A, using the method of the present invention to build high Accuracy digital water depth model, including the following steps, such as figure 1 Looking:
[0065] S1: Enter nautical map data, extract the shoreline, the like deep lines (including the beach line), special lines (layers, forced cables, additional buffers, etc.) and water depth points and the water depths In memory, the collection of nautical map A in the hypothesis is referred to as S (L);
[0066] S2: According to the like in S (L), the relationship between the depth of the beach, the beach line, the beach ...
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