Method for quickly obtaining IFC (Industry Foundation Class) building information model data

Abstract

The invention provides a method for quickly obtaining building product information model data, particularly relates to a method for packaging higher-class building construction member objects by an intermediate data layer to quickly obtain data when software products are developed on the basis of a building product data exchange standard IFC (Industry Foundation Class) in each building engineering field, and belongs to the field of building engineering informatization. The method specifically comprises the following steps: establishing the intermediate data layer between a data source layer and a data application layer; according to different professional field requirements of buildings, establishing professional field classes by the intermediate data layer; in each professional field class, according to a data requirement range, carrying out expanding definition on the attribute of a building information model object; carrying out "black box" packaging on an expanding definition attribute value acquisition process to realize a purpose that the acquisition of the data of the building information model which conforms to the IFC standard is changed into the direct acquisition of the object attribute from "multi-layer" calling. The method packages a great quantity of complex data calling processes, so that developers still can quickly obtain the data information of the building product object even under a situation that the developers do not know the building product data exchange standard IFC so as to greatly shorten a development period of the building software product and also avoid the problems of data acquisition difficulty, errors and deficiency caused by that the developers do not know the building industry or the IFC standard.

Description

technical field [0001] The invention relates to a method for quickly acquiring building product information model data. In particular, it relates to a method for quickly acquiring data by encapsulating higher-level building component objects with intermediate data when developing software products in various construction engineering fields based on the construction product data exchange standard IFC, and belongs to the field of construction engineering informatization. Background technique [0002] The IFC standard is an international standard for the expression and exchange of construction product data. Since the IFC standard expresses construction products in an object-oriented form, it uses four conceptual layers: the resource layer, the core layer, the collaboration layer and the domain layer, and the strict calling relationship between the layers. information model. From the core layer up, IFC builds a very large and comprehensive information model hierarchy, and organ...

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Problems solved by technology

[0007] In order to solve the above problems, the present invention proposes a method for fast acquisition of building product information model data, the core of which is to establish an intermediate data layer between the file or database storing the building product information model conforming to the IFC standard and the domain application layer, According to the needs of different construction professional fields for construction product information, the acquisition process of construction product component attribute information is packaged in a "black box", so that on the basis of conforming to the IFC standard, a construction entity object library and a construction geometry object library are established to provide A more advanced building product object is proposed, so that users in different professional fields only need to find the required object in the building entity object library when obtaining the required information of building products, and directly obtain the attribute information through attribute calling, thus avoiding the need to pass The problem that the IFC standard can only obtain the required object attribute information through complex hierarchical calls

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