Rapid construction method of three-dimensional model based on parallel engineering

Abstract

The invention provides a rapid construction method of a three-dimensional model based on parallel engineering. According to the principle of parallel engineering, curve interpolation and curved surface interpolation are expanded in order while data are collected, and the method is oriented to the rapid manufacturing technology, so that the efficiency can be improved and intermediate redundant links can be reduced no matter whether the construction of a curved surface model of a three-dimensional scalar field is from virtual modeling or real object representation; according to the method, a projection filtering mode is adopted according to setting, compared with traditional spatial filtering, the method is more convenient, the calculation speed is high, and the modeling precision can be improved; meanwhile, indirect measurement is adopted, a large amount of redundant data can be effectively reduced, and the data acquisition rate is increased. According to the method, the three-dimensional scalar field can be displayed more three-dimensionally and objectively.

Description

Technical field [0001] The invention provides a method for quickly constructing a three-dimensional model based on concurrent engineering, and belongs to the research field of a method for constructing a three-dimensional scalar field surface model. Background technique [0002] The construction of the three-dimensional scalar field has important applications in the field of engineering technology. The accurate construction of the three-dimensional scalar field of the research object can more accurately show the characteristics and research direction of the research object. The construction of 3D scalar field is cloud model, wireframe model, surface model and physical model. Surface model and physical model are advanced modeling models. The displayed 3D scalar field has the best effect, but the difficulty is the most. [0003] Existing modeling mostly screens out a large number of data points, and then fits the surface to directly generate a surface model, so the quality of the sur...

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Problems solved by technology

The construction of the 3D scalar field is a bit cloud model, wireframe model, surface model and physical model, among which the surface model and physical model are advanced modeling models. The 3D scalar field displayed is the best, but the difficulty is the most

[0003] Most of the existing modeling is screened out through a large number of data points, and then the surface is fitted to directly generate a surface model, so the quality of the surface model is difficult to guarantee, and it is very difficult to adjust; again, a large number of data points are required. The speed of data acquisition and information processing poses a great challenge; moreover, most of the work is done serially now, that is, completing an overall step is carried out in one step, which not only complicates the process, but also makes it almost impossible to go back to the previous work for modification once a subsequent problem occurs. Possibly, modeling is risky and difficult

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