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Real-time refining three-dimensional modeling and rendering method for massive road networks

A technology that refines 3D and 3D models. It is used in 3D modeling, image rendering, and image data processing. It can solve problems such as time-consuming, labor-intensive, and inability to achieve refined display

Active Publication Date: 2016-11-16
四川华控图形科技有限公司
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Problems solved by technology

[0004] The purpose of the present invention is to address the deficiencies of the prior art, to provide a real-time refined three-dimensional modeling and rendering method for massive road networks, which can well solve the problem of time-consuming and labor-intensive manual construction of the existing three-dimensional model, which cannot be achieved fine-grained display problems

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  • Real-time refining three-dimensional modeling and rendering method for massive road networks

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Embodiment Construction

[0020] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0021] For simplicity, some technical features known to those skilled in the art are omitted from the following description.

[0022] This application provides a real-time refined 3D modeling and rendering method for massive road networks, such as figure 1 shown, including the following steps:

[0023] S1. Constructing a road network 3D sub-model database, a model attribute database, a 3D terrain model database and a 3D terrain paging database; this step is specifically:

[0024] Construct corresponding road network three-dimensional sub-model database according to the actual road network line type, including railway road network three-dimensional model database, highway road network three-dimensional model database and water transpo...

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Abstract

The invention provides a real-time refining three-dimensional modeling and rendering method for massive road networks. The method comprises the following steps: (S1) constructing a road network three-dimensional submodel database, a model attribute database, a three-dimensional terrain model database and a three-dimensional terrain paging database; (S2) calculating a laying length, space coordinates and a space attitude of the road network three-dimensional submodel database, so as to obtain precise submodel three-dimensional preset information; (S3) presetting three-dimensional subnode models in a three-dimensional terrain model along a road network vector route according to the precise submodel three-dimensional preset information and an attribute character value of each section of road network model; (S4) regulating three-dimensional space attitude of a road network three-dimensional submodel; (S5) carrying out real-time binding on the regulated road network three-dimensional submodel to obtain massive road network models; and (S6) optimizing and rendering massive road network three-dimensional models. By virtue of the method, a professional modeling worker and a large-scale scene designer can assist to rapidly construct massive road network three-dimensional models.

Description

technical field [0001] The invention relates to the technical field of three-dimensional visualization simulation, in particular to a method for real-time refined three-dimensional modeling and rendering of massive road networks. Background technique [0002] With the popularization and application of big data technology, digital earth and three-dimensional visualization of large-scale and large-scale terrain have become one of the basic components of big data applications. With the development of virtual reality hardware technology, the display accuracy of three-dimensional large-scale terrain is getting higher and higher, including vegetation, buildings and road networks. [0003] With the in-depth application of big data visualization technology in traffic design, road planning and other fields, it has become a new technology development trend to carry out refined 3D modeling of railways, highways and traffic entities. At present, there are also virtual 3D urban roads, vi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T17/05G06T9/00G06T11/20G06T15/10
CPCG06T9/008G06T11/203G06T15/10G06T15/205G06T17/05G06T2207/10032G06T2207/30236G06T2215/06
Inventor 唐兆郁家福苏飏张建
Owner 四川华控图形科技有限公司
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