Method for displaying space information of IFC model component on Web

A technology of model components and spatial information, applied in 3D modeling, image data processing, special data processing applications, etc., can solve problems such as inability to model interaction, inability to extract model spatial information and spatial tree structure, and achieve complete component information. Effect

Active Publication Date: 2019-08-23
西安塔力科技有限公司
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Problems solved by technology

[0003] At present, the tree structure of family type can be generated by parsing IFC, such as family IfcDoor, IfcSlab, IfcWall, IfcWindow, etc., to generate tree structure and space tags classified by door, floor, wall, window, etc., from

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  • Method for displaying space information of IFC model component on Web
  • Method for displaying space information of IFC model component on Web
  • Method for displaying space information of IFC model component on Web

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Embodiment Construction

[0037] The present invention will be described in further detail below in conjunction with the accompanying drawings, which are explanations rather than limitations of the present invention.

[0038] At present, spatial information cannot be obtained by parsing the IFC, which makes it impossible to narrow down the range and locate the model step by step, so as to determine the position of a smaller range (such as obtaining the position of the room). The present invention is dedicated to obtaining spatial position information from IFC files in Web applications.

[0039] People have an intuitive understanding of spatial location information, such as a certain room on a certain floor of a certain building; but in web applications, after the IFC file is parsed by the BIM engine to generate a 3D image, it is difficult to determine the location of a certain area because there is no reference. In order to quickly locate the area in the web application, add space naming information to...

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Abstract

The invention discloses a method for displaying component space information of an IFC model on the Web, which comprises the following steps: 1) in IFC modeling, carrying out space naming on a component of the model by adopting a space identifier; 2) analyzing the IFC file in a BIM engine to obtain graphic data and spatial structure information of the model; 3) generating a 3D model from the IFC file, attaching the spatial name extracted from the IFC file to the 3D model, assembling a tree structure through a regular expression according to the identifier of the spatial name, and storing the tree structure into a storage library; 4) calling a tree structure of the storage library data, taking a spatial name contained in a tree node as an index, traversing all components in the 3D model, andfinding a component matched with the index; and displaying the spatial information by hovering a component in the 3D model. The method overcomes the difficulties that the IFC Web display cannot obtain the space structure tree and the regional model component cannot be selected, and has the advantages that the range is gradually narrowed from large to small for viewing, the model component is quickly positioned, the affiliation information of the model component is displayed, and the model operation is carried out.

Description

technical field [0001] The invention belongs to the technical field of intelligent buildings, and relates to a method for displaying space information of IFC model components on the Web. Background technique [0002] IFC (Industry Foundation Classes) is a general file (data conversion format) for BIM models in the field of intelligent buildings, which enables the conversion and exchange of models between various engineering software, and its core lies in information description and information communication. It provides geometric information for drawing models and tree structure information by model type, but does not provide spatial tree structure information. [0003] At present, the tree structure of family type can be generated by parsing IFC, such as family IfcDoor, IfcSlab, IfcWall, IfcWindow, etc., to generate tree structure and space tags classified by door, floor, wall, window, etc., from the space of the structure If the spatial information and spatial tree struct...

Claims

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Application Information

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IPC IPC(8): G06F16/958G06T17/00
CPCG06F16/958G06T17/00
Inventor 郑珂
Owner 西安塔力科技有限公司
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