The article describes an algorithm for automatic calculation of the parametric number of a flat contour created electronically in vector format. Since the parametric number of the contour corresponds to the number of dimensions in the drawing necessary for its unambiguous reproduction, the described algorithm can be used as the basis for the process of solving the difficultly formalized problem of automated drawing dimensions on the drawing. This task is relevant primarily for automating design tasks associated with the problem of automatic "reading" of the drawing, which is still far from its final solution. In addition, this algorithm can be used to expand the capabilities of training simulators that contribute to the formation of geometric and graphic competencies in the training of specialists in various areas of training. This article describes the process of selecting non-derivative figures that make up a flat contour, and identifying geometric conditions between them, allowing you to replace the shape and position parameters in the contour drawing in order to optimize the number of dimensions applied to the drawing. The general algorithm for solving the problem posed requires solving a large number of related problems, many of which involve the use of a heuristic approach. Therefore, testing the developed algorithm is a separate, multifactorial task that requires a large number of iterations.
This article presents the problem of developing an algorithm for automated reading of a drawing of an object, consisting of three types with the necessary cuts. According to the drawing, a partition of the object into nonderivative figures should be obtained and boolean operations should be identified, with the help of which the final composite figure will be constructed from non-derivative figures. Thus, in the process of solving this problem, a socalled binary tree of the modeled composite figure will be generated. Moreover, it is necessary to take into account the multiplicativity of the solution to this problem and the possibility of choosing optimal solutions. This paper poses a specific problem, in which non-derivative figures can be got using four formbuilding operations available in the arsenal of tools for getting three-dimensional elements in the Compass 3D geometric modeling system, namely, such operations as "extrusion", "rotation", "along the trajectory" and "cross-sections".
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