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A Topological Relation Analysis Method of PDs Model

A technology of topology relationship and analysis method, applied in the field of three-dimensional model processing, can solve the problems of lack of mature PDS model topology relationship analysis software, inability to directly interact with data, and inflexible acquisition of topology relationship data, so as to achieve simple operation and avoid repeated development. and manual labor, improving design efficiency and quality

Active Publication Date: 2021-03-30
SHANGHAI NUCLEAR ENG RES & DESIGN INST CO LTD
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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

Method used

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  • A Topological Relation Analysis Method of PDs Model
  • A Topological Relation Analysis Method of PDs Model
  • A Topological Relation Analysis Method of PDs Model

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Embodiment Construction

[0031] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0032] Such as figure 1 As shown, the topological relationship analysis method of the PDS model includes the following steps:

[0033] S1, define the PDS topological relationship data structure, the data structure can completely represent all the topological relationships of each PDS component, so the data structure needs to not only reflect its own component type and component identity, but also reflect the connection between the current component and other components relation.

[0034] S2. Obtain the graphics file path corresponding to each model in the PDS project. The storage path of graphic files is recorded in detail in the database of the PDS project, and the specific recording location is in the pd table in the PDS datab...

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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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/20
CPCG06F30/13G06F30/367G06F2113/14
Inventor 沈杰
Owner SHANGHAI NUCLEAR ENG RES & DESIGN INST CO LTD
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