Dimension chain checking method based on three-dimensional model
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The invention discloses a dimension chain checking method based on three-dimensional model and aims to solve the technical problem that a conventional dimension chain checking method is low in efficiency. The technical scheme is that a vector dimension system based on a fixed datum is established by using a space nature of the three-dimensional model. Vector annotation is performed on a three-dimensional dimension, so that the dimension required to be checked under a three-dimensional environment has a vector characteristic, and further automatic checking of a dimension chain is realized according to the principle that the vector sum is zero; and function modules such as automatic judgment of increase and decrease of rings, tolerance modification real-time update, dimension chain check record queries, check record report generation, inter-process dimension chain visual display and the like are provided, so that a dimension chain analysis calculation problem can be solved conveniently, rapidly and accurately. The dimension chain checking efficiency is improved, and an effect for facilitating rapid generation and optimization of a product process is realized. The method can be completed across platforms, and dimension chain checking can be performed through resume vector annotation systems in different modeling software.