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High-precision 3D GIS Earch implementing method and system

An implementation method and high-precision technology, which is applied in the field of 3D simulation and can solve the problems of small single-chip size and low precision.

Inactive Publication Date: 2017-05-24
天津瀚海星云数字科技股份有限公司
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Problems solved by technology

[0002] The accuracy of the satellite maps of the existing major map providers is generally low, the size of the single chip is small, and the highest available on the Internet is basically 4K

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  • High-precision 3D GIS Earch implementing method and system
  • High-precision 3D GIS Earch implementing method and system
  • High-precision 3D GIS Earch implementing method and system

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Embodiment Construction

[0022] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0023] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0024] The implementation method of high-precision 3D GIS Search includes the following steps:

[0025] 1) Construct a polyhedron with the graphical modeling software 3ds Max, and use the normal mapping software CrazyBump to perform bump mapping on the surface of the polyhedron according to the earth's surface graphics. After fine-tuning the parameters, a satisfactory bump map is obtained, and finally the main body of the earth model is obtained ;

[0026] Finally, a large-scale high-precision earth map with a size of 16K is obtained. The source of the texture is a two-dimensional google satellite map. Among them, the small-sized texture is assembled by PhotoShop software and the border...

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Abstract

The invention provides a high-precision 3D GIS Earch implementing method. The method comprises the following steps that 1, a polyhedron is built through graphic modeling software, bump mapping is conducted on the surface of the polyhedron through normal mapping software according to earth surface graphics, and an earth model body is obtained; 2, a new layer of spherical model is built on the outer layer of the earth model body, and a 3D Mesh atmospheric effect layer is built in a transparency mapping mode; 3, a daytime and night dual-mapping mode is adopted to obtain the simulated effect of switching along with earth rotation in daytime and at night. Compared with the prior art, the method has the advantage of achieving the high-precision 3D GIS Earch simulation.

Description

technical field [0001] The invention belongs to the technical field of 3D simulation, and in particular relates to a method for realizing high-precision 3D GIS Search. Background technique [0002] The accuracy of satellite maps of major map providers is generally low, and the size of a single chip is small, and the highest available on the Internet is basically 4K. Contents of the invention [0003] In view of this, the present invention aims to propose a method and system for realizing high-precision 3D GIS Search. [0004] To achieve the above object, a technical solution of the present invention is achieved in this way: [0005] The implementation method of high-precision 3D GIS Search includes the following steps: [0006] 1) Construct a polyhedron by graphical modeling software, and carry out concave-convex mapping on the surface of the polyhedron according to the earth surface graphics by normal mapping software to obtain the main body of the earth model; [0007...

Claims

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Application Information

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IPC IPC(8): G06F17/30G06T17/00G06T19/20
CPCG06F16/29G06T17/00G06T19/20
Inventor 贾志强
Owner 天津瀚海星云数字科技股份有限公司
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