A method and application based on BIM model and component extension information mapping

The invention relates to a BIM model and component extension information mapping-based method and application, and the method comprises the following steps: 1, carrying out the judgment of the formatof an added three-dimensional model, carrying out the automatic combination of parts through employing a multi-thread asynchronous mode for a part model through employing a model one-key mold closingplug-in, and enabling the parts to be a component; 2, calling model rewriting plug-ins of different formats according to the format of the model file, and traversing and identifying the component information through an algorithm; Step 3, associating and mapping information in the component extension information table with a model main data storage table and other business tables; and step 4, calling different software model exporting plug-ins to store the IFC model file according to the model file format. According to the invention, a series of problems of complex conversion link and information loss of various three-d