A Topological Relation Analysis Method of PDs Model

Abstract

The invention provides a topological relation analysis method of a PDS model, comprising steps as follows: S1, defining topological relation data structures of a PDS; S2, obtaining the graphic file path corresponding to every model in a PDS project; S3, sequentially scanning a graphic file corresponding to the PDS model to obtain the graphic elements in the file representing model elements; S4, obtaining feature codes for determining element identities; S5, obtaining the key point coordinates of the elements for carrying out topological relation analysis; repeating steps S2 to S5; S6, finding out the topological relations of all elements through the key point coordinates. According to the topological relation analysis method of the PDS model provided by invention, all professional topological relations in the PDS model such as pipelines, devices and bridges can be obtained automatically; the relations are stored in a database; the unstructured graphic information is converted into the structured data in the database; therefore the flexibility and readability of the topological relation data of the PDS model are promoted remarkably.

Description

technical field [0001] The invention relates to a three-dimensional model processing method, in particular to a topological relationship analysis method of a PDS model. Background technique [0002] PDS (Plant Design System) is a widely used 3D design software. As an integrated and multi-disciplinary collaborative design system, PDS software can quickly help designers of various disciplines to perform 3D modeling and design inspection, greatly improving work efficiency and design quality. In the chemical industry and energy industry, PDS software has been widely used and there have been countless successful cases. [0003] With the rapid development of computer technology and the continuous advancement of industrial automation, the integration of design and analysis has become the general trend. PDS stores the topological relationship in the model in the graphic file instead of the database. Unstructured data makes the acquisition of topological relationship data inflexibl...

AI Technical Summary

Problems solved by technology

PDS stores the topological relationship in the model in the graphic file instead of the database. Unstructured data makes the acquisition of topological relationship data inflexible, and the topological relationship data of the 3D model is very important for subsequent analysis and calculation, which causes PDS Software and follow-up analysis software cannot directly interact with data, but interface development is required

Through research, it is found that there is no mature PDS model topological relationship analysis software on the market

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