Research On Rapid 3D Modeling Of Buildings Based On Construction Drawing

Three-dimensional model of integration of urban areas of the building arewidely used in digital visualization of buildings and sunlight analysis, airflowsimulation, emergency evacuation, architectural design, structural mechanics analysis,intellectual property management and many other areas of the city. Beginning withthe geographical environment and geographic integration design. The current buildingmodeling approach to labor, point clouds, image (sequence)-based, low efficiency,computational complexity, lack of semantic information. The use of the data involvedin modeling construction plans can effectively solve these problems, and have thepotential to build a three-dimensional model of the integration of indoor and outdoor.Currently there is extensive use of construction plans modeling studies, however,there are still many problems to be solved, a lot of technology there is no innovation,leading to the current modeling technology is not efficient, the paper in reference tothe basis of a lot of work on modeling of buildings, studied the problem of rapidmodeling method to generate a three-dimensional model of the building byconstruction drawings. Made the following innovations:(1) There are about building components for domestic and internationalclassification standards for collection and analysis, and classification of the existingbuilding components TArch CAAD software is analyzed, and finally to TengenCAAD software building components classification criteria are classified as membersof this article, for now the domestic outside there is no uniform standard buildingcomponents, each standard room and independent of each other, unable tocommunicate with each other, the paper TArch CAAD software to classify theexisting building components as standard, providing a basis for modeling researchwork in this paper.(2) this paper proposed25modeling method of building elements.22categoriesof building components including parametric modeling methods and buildingcomponents are generally three types of modeling methods. Modeling is the key tobuilding construction elements modeling, this paper presents the parametersestablished by the method of building components, including a three-step process.Firstly, the geometric structure of the building components, refining parameterinformation modeling needs of each type of building components, followed by the useof Tengen group code table to find the corresponding building components parametersobtained parameters required for each type of component modeling, and finally through the construction of these design parameters modeling components. Generalmodeling generation plane by connecting each vertex of each surface element, acombination of all the surface of the model, or the surface is divided into upper andlower surfaces, the upper surface of a uniform thickness stretched, the componentmodel can be generated.(3) TArch computer-aided architectural design software, software for therepresentatives generated by TArch software revolves floor construction drawings,Nanjing Normal University, for example, the six drawings in accordance with theactual floor revolves geospatial location, and through a unified axis Networkintegration is a complete construction drawings. Drawings generated by using thethree-dimensional model of integration revolves floor. By The examples demonstratethe accuracy and feasibility of building components modeling method. In this paper,the establishment of research to reach the goal of building a three-dimensional model.