BIM data lightweight method

A lightweight, data technology, applied in the field of geographic information, can solve the problems of difficult and efficient sharing and management of BIM data, and achieve the effect of solving difficult and efficient sharing and management and ensuring integrity.

Pending Publication Date: 2020-01-07
珠海市规划设计研究院
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Problems solved by technology

[0006] The invention supports the integration and fusion of heterogeneous data from multiple sources by uniformly converting the original BIM data into IFC data in standard units and a series of data coordinate conversions, while ensuring the integrity and accuracy of the data, and solving the current BIM problem. The problem that data is difficult to share and manage efficiently provides a technical basis for the construction of a 3D smart city

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Embodiment Construction

[0014] This part will describe the specific embodiment of the present invention in detail, and the preferred embodiment of the present invention is shown in the accompanying drawings. Each technical feature and overall technical solution of the invention, but it should not be understood as a limitation on the protection scope of the present invention.

[0015] In the description of the present invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc. indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only In order to facilitate the description of the present invention and simplify the description, it does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

[0016] I...

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Abstract

The invention discloses a BIM data lightweight method. The method comprises the following steps of S1, converting original BIM data into IFC data of a standard unit; S2, converting the BIM data underthe custom rectangular coordinate system into a corresponding local coordinate system; s3, converting the BIM data under the local coordinate system into a reference center plane coordinate system; and S4, converting the BIM data in the reference center plane coordinate system into BIM data in a 3DTiles format in a geocentric coordinate system, and outputting the BIM data in the 3DTiles format. The beneficial effects of the invention are that the method focuses on a business problem rather than a bottom-layer technical problem, supports the integration and fusion of various types of source heterogeneous data, guarantees the integrity and accuracy of the data, solves a problem that the current BIM data is difficult to share and manage efficiently, and provides a technical basis for the construction of a three-dimensional smart city.

Description

technical field [0001] The invention relates to the technical field of geographic information, in particular to a method for lightweighting BIM data. Background technique [0002] In recent years, with the rapid development of the construction industry and the emphasis on project life cycle management, BIM technology has emerged as the times require. BIM model is a computer graphics model with rich semantic information, multi-dimensional, multi-purpose and multi-function. Since BIM covers a large amount of information such as geometry, spatial relationship, and building component attributes, the data volume of the original BIM model is large, which makes it too demanding for the computer and affects the efficiency of project management collaboration. Therefore, it is urgent to carry out lightweight processing of the model . Integrating BIM data into GIS data after lightweight processing can make BIM move from micro to macro, solve the problem of information islands, and fi...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/25G06Q50/08
CPCG06Q50/08G06F16/258
Inventor 赵自力许亚峰张志翱刘纪东许明生
Owner 珠海市规划设计研究院
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