Flood routing situation three-dimensional dynamic visual display method based on WebGL
A 3D dynamic and flood technology, applied in the field of information technology, can solve the problems of inability to guarantee the rendering effect and low efficiency, and achieve the effect of improving rendering performance, improving rendering efficiency, and ensuring rendering effect
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[0074] The implementation of the present invention will be described in detail below in conjunction with the accompanying drawings, but they do not constitute a limitation to the present invention, and are only examples. At the same time, the advantages of the present invention are clearer and easier to understand through the description.
[0075] The core idea of the present invention is: 1) build a realistic terrain based on the digital elevation model and high-resolution remote sensing image data superposition; 2) place the oblique photographic model of the current area on the terrain, and the model placement needs to be completely connected with the terrain elevation; 3) Use the shader technology of WebGL to add two kinds of virtual environment enhancement effects, weather and special effects, to simulate the external natural conditions in the process of flooding and increase the sense of reality; 4) complete the three-dimensional scene based on terrain data, oblique phot...
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