Abstract
Three-dimensional metric models of real physical objects are actively used when solving various tasks in the process of a person's professional activity. In the construction industry, 3D modeling helps to capture all life cycles of buildings from engineering surveys to design, operation and demolition work. Three-dimensional models allow quickly performing all the necessary measurements in a computer environment, provide the ability to build two-dimensional drawings and make changes to design documentation. Among all types of three-dimensional models, there are separately those that allow storing various attributive information about an object in addition to geometric information, significantly automate the process of many engineering calculations using a three-dimensional model and provide the ability to automatically create various types of documentation. These types of three-dimensional models are called building information models (BIM). The most appropriate method is laser scanning as a data source for creating BIM. The technique of three-dimensional modeling based on laser scanning data is discussed. The advantages of BIM over simple three-dimensional models created in specialized software for processing laser scanning data and computer-aided design systems are analyzed.
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