Three-dimensional map scene building method based on various data

Abstract

The invention discloses a three-dimensional map scene building method based on various data. The method comprises the steps that a geographic area range is set according to scene building requirements; the method comprises the following steps: acquiring an electronic chart of a geographic area range, acquiring a water depth characteristic element value for the electronic chart, and generating a vector point element file based on the water depth characteristic element value; acquiring a digital elevation model of a geographic area range, processing the digital elevation model, and generating a vector point element file based on an elevation value; adjusting the coordinate system of the generated vector point element file, combining to generate a new vector point element file, and generating a combined digital elevation model; and establishing a three-dimensional scene and / or three-dimensional terrain model according to the combined digital elevation model. According to the invention, a sea-land integrated three-dimensional effect is rapidly realized, and meanwhile, rendering effects in different water depth ranges are realized according to water depth values; the three-dimensional scene simulation module is placed in a map application engine to achieve three-dimensional scene simulation tending to a real terrain; and meanwhile, a three-dimensional terrain model based on real landform features is generated.

Description

technical field [0001] The invention relates to a method for building a three-dimensional map scene, in particular to a method for building a three-dimensional map scene based on various data. Background technique [0002] With the growth of the shipping industry and related industries and the development trend of the map industry, future maps will develop vigorously from two-dimensional planes to three-dimensional three-dimensional trends, and there will be more and more map-using industries including the shipping industry and related industries. Use a 3D map as a reference. However, the traditional two-dimensional map, due to its planar feature, can only mark the data in a limited two-dimensional plane but cannot visualize the data, and cannot provide users with a better simulation experience based on real scenes . [0003] The 3D map can add a three-dimensional effect on the basis of the 2D map. Most of the existing 3D elevation data models (DEM) only include ground ele...

AI Technical Summary

Problems solved by technology

However, the traditional two-dimensional map, due to its planar feature, can only mark the data in a limited two-dimensional plane but cannot visualize the data, and cannot provide users with a better simulation experience based on real scenes

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