Parameterization design method and system for viewing stand

Abstract

The parameterized design method comprises the following steps: setting a stand field core contour line serving as a first row of stand sideline; determining the elevation and the horizontal position of a viewpoint; generating a group of plane stand seat sequence lines according to the first row of stand sidelines, the row number and the row distance; the sight line rising difference of each row of stands is calculated; the modularized eye position height and the modularized sight line rise difference of each row of stands are calculated; performing up-and-down floating adjustment on the modularized sight line rising difference of the stand; obtaining a grandstand lofting line according to the plane grandstand seat sequence line and the modularized eye position height; carrying out lofting according to a stand lofting line to obtain a volume model; setting a viewpoint trajectory; generating a sight analysis line on the viewpoint guide surface through the viewpoint guide surface, the viewpoint and the eye position points of each row of seats; generating a section with a sight line analysis line; and summarizing various pieces of stand information to a drawing output module, and performing two-dimensional drawing drawing and processing by using Rhino or CAD. According to the method, the stand building scheme meeting design specification requirements can be quickly obtained.

Description

technical field [0001] The invention belongs to the field of computer-aided architectural design, and in particular relates to a parametric design method and system for a viewing stand. Background technique [0002] Performance building refers to most of the buildings with the viewing stand as the core part, including stadiums and theaters. A viewing stand refers to a viewing seat that surrounds the performance or competition venue and rises step by step for large-scale collective activities such as cultural sports and entertainment performances. [0003] The design of the viewing stand is limited by a series of specifications and standards, and the dynamic characteristics of the sight line rise and sight quality level of the stands have a certain professionalism. In the process of program design, in order to obtain the optimal grandstand plan, it is necessary to carry out multi-plan comparison and selection. Considering that there are tens of thousands of viewing stands at...

AI Technical Summary

Problems solved by technology

In the scheme design process, in order to obtain the optimal grandstand scheme, it is necessary to carry out multi-plan comparison and selection. Considering that there are tens of thousands of grandstands at every turn, the workload of design and drawing is heavy

In addition, conventional stand line of sight analysis only conducts two-dimensional section analysis. The coverage of line of sight analysis is limited, and it is impossible to analyze line of sight occlusion loss for all seats. The completeness, accuracy and diversity of the analysis are insufficient.

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