Engineering scene establishing method

Abstract

The invention discloses an engineering scene establishing method, and relates to the field of scene establishment; the method comprises the steps: S1, establishing BIM models of engineering scenes; S2, analyzing the BIM models, obtaining related information of the BIM models, storing the related information in a model database, and outputting a GIS readable model file; S3, acquiring geographic data, and establishing a geographic information scene through a GIS platform; S4, unifying a BIM model local coordinate system and a GIS coordinate system, and determining offset information; S5, importing all the BIM models and the model database according to the space coordinates and the offset information of the BIM models in the three-dimensional scene, and dynamically displaying the BIM models;and S6, completing seamless fitting of the BIM models and a DEM and sleeving of a terrain. The three-dimensional building information model is used as a core to be applied to the processes of design,construction and the like of an engineering project, so that the BIM design model is well applied to the field of civil engineering and is combined with geographic information; the problems that information borne by a BIM design model integrated into a three-dimensional geographic information system is lost, the loading speed is low, and the spatial position of a component in a structure deviatesare solved.

Description

technical field [0001] The invention relates to the field of scene creation, in particular to a method for building an engineering scene. Background technique [0002] In recent years, Building Information Modeling (BIM) has been vigorously promoted and applied in the field of construction at home and abroad due to its high degree of refinement, feature parameterization, rich semantic information, and digital management of the whole life cycle. major standards in the field. The introduction of BIM technology into the railway industry is conducive to the realization of digital management of the entire life cycle of railway projects. However, due to the high degree of fineness of the BIM model, the large amount of data, and the long time of visual preprocessing, the current application is mainly focused on the design and construction of a single project. Management aspects of the entire life cycle, such as individual bridges, tunnels, buildings, or small complexes of structur...

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Problems solved by technology

[0004] At this stage, the integration of BIM models into 3D geographic information systems has problems such as loss of bearing information, slow loading speed, and spatial position offsets in structures. There are platform limitations in the delivery of software and BIM models; the second is that the BIM model is designed using a plane coordinate system, and the 3D geographic information system generally adopts a spherical coordinate system. If multiple BIM models are directly projected to the spherical

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