Three-dimensional multi-track railway cross section graphic display method

Abstract

The invention discloses a three-dimensional multi-track railway cross section graphic display method, which includes the following steps: (S1) constructing a three-dimensional multi-track railway scene; (S2) cutting the three-dimensional multi-track railway scene; (S3) calculating marking information; (S4) calculating two-dimensional screen coordinates; (S5) marking a three-dimensional cross section model; (S6) interactively controlling graphic display. By constructing the three-dimensional multi-track railway scene, the three-dimensional cross section graphs of any number of designed tracks and locations at any mileages can be modeled, displayed and marked, multi-track roadbed cross section design results can be displayed, the purpose of a design can be clearly expressed, and various complex relations can be visually reflected; a three-dimensional cross section can be continuously and dynamically browsed along a track, moreover, baselines can be optionally switched in order to rapidly view the three-dimensional cross section graph under different states, meanwhile, the method fully supports the display of the cross section graphs of conventional single-track railways and double-track railways, and realizes the dynamic graphic display of continuous mileage of cross sections, the automation degree is high, and the method is highly universal, and is highly worth popularizing and applying.

Description

technical field [0001] The invention relates to a railway design method, in particular to a graphic display method for a three-dimensional cross-section of a multi-line railway in railway design. Background technique [0002] The traditional railway cross-section diagram is mainly based on the two-dimensional design diagram of the stake section, which is a static graphic display, and is usually designed according to relatively independent road base entities such as single-track railways and parallel double-track railways. For multi-line railways, especially large-scale railway hubs, the crossing of lines is complex, the height difference of each line’s track surface, the line spacing changes frequently, and the cross-sections affect each other. The traditional cross-sectional diagram cannot fully and intuitively express the subgrade at any position of the multi-line railway Cross-sectional information, such as the section where the subgrade is gradually separated, it is diff...

AI Technical Summary

Problems solved by technology

For multi-line railways, especially large-scale railway hubs, the crossing of lines is complex, the height difference of each line’s track surface, the line spacing changes frequently, and the cross-sections affect each other. The traditional cross-sectional diagram cannot fully and intuitively express the subgrade at any position of the multi-line railway Cross-sectional information, such as the section where the subgrade is gradually separated, it is difficult for designers, reviewers, and reviewers to judge whether the engineering design is reasonable in time, etc.

At the same time, for multi-line railways, in the preliminary design stage, the baseline of each section section cannot be completely determined. Traditional cross-section design and graphic display require organization and adjustment of a large amount of data for baseline switching, which brings difficulties to engineering design and thus affects work. Efficiency and Engineering Quality

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