Method for performing three-dimensional parametric modeling on high-speed railway subgrade in virtual reality environment

A parametric modeling and virtual reality technology, applied in the field of railway design and modeling, can solve problems such as difficulty in adapting to the design and construction of high-speed railway embankment, difficulty in model editing and modification, and large randomness of the model, so as to reduce the amount of manual work , Improving the degree of visualization and the effect of improving the degree of automation

Active Publication Date: 2012-03-21
CHINA RAILWAY DESIGN GRP CO LTD
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AI Technical Summary

Problems solved by technology

At present, the method of 3D modeling of subgrade is manual modeling, which is cumbersome, inefficient, and random, and it is difficult to edit and modify the model, which is difficult to meet the needs of high-speed railway subgrade design and construction.

Method used

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  • Method for performing three-dimensional parametric modeling on high-speed railway subgrade in virtual reality environment
  • Method for performing three-dimensional parametric modeling on high-speed railway subgrade in virtual reality environment

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Embodiment Construction

[0018] The technical solution of the present invention will be further described in conjunction with the accompanying drawings.

[0019] figure 1 The basics of the three-dimensional parametric modeling method of high-speed railway embankment in virtual reality environment

[0020] process. As shown in the figure, the three-dimensional parameters of the high-speed railway embankment under the virtual reality environment involved in the present invention

[0021] The modeling method includes the following steps: 3D parametric modeling of road base body S1, 3D road bed protection

[0022] Parametric modeling S2, combining subgrade body and protection into a complete subgrade model S3, exporting

[0023] The terrain data S4 on the outer surface of the subgrade model and the subgrade model are imported into the virtual reality environment S5.

[0024] S1-3D parametric modeling of the basic body of the road includes: 3D parametric modeling of the roadbed rail;

[0025] 3D para...

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Abstract

The invention discloses a method for performing three-dimensional parametric modeling on a high-speed railway subgrade in a virtual reality environment. A parametric model is constructed by using parameters which reflect a subgrade characteristic in a railway design, so a subgrade three-dimensional model is established quickly and accurately; a convenient model editing and modifying method is provided; and powerful technical support is supplied to promote the high-speed railway subgrade design level. The high-speed railway subgrade three-dimensional parametric modeling method in the virtual reality environment comprises the following technical steps of: 1, performing subgrade body three-dimensional parametric modeling; 2, performing subgrade protection three-dimensional parametric modeling; 3, combining the subgrade body and the protection to form a complete subgrade model; 4, exporting geomorphologic data of the outer surface of the subgrade model; and 5, importing the subgrade modelinto the virtual reality environment.

Description

technical field [0001] The invention relates to a railway design modeling technology, in particular to a three-dimensional parametric modeling technology of a high-speed railway embankment. Background technique [0002] The stability of the high-speed railway subgrade, the quality of the connection between the subgrade and adjacent bridges and tunnels, and the coordination with the surrounding environment directly affect the safety of railway lines. At present, subgrade design, review, and review mainly rely on two-dimensional data such as floor plans and subgrade cross-sectional diagrams. The information is incomplete, not intuitive, and the expression effect is poor. Use virtual reality technology to establish a real 3D model of the subgrade according to the design drawing, and place it in a 3D virtual geographic environment, so that designers, reviewers, and reviewers can comprehensively, systematically and intuitively preview the engineering effect after the completion o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50G06T19/00
Inventor 王华韩祖杰赵文刘小龙
Owner CHINA RAILWAY DESIGN GRP CO LTD
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