Nuclear power three-dimensional model lightweight method and system

Abstract

The invention relates to the technical field of nuclear power three-dimensional models, and discloses a nuclear power three-dimensional model lightweight method and system, and the method comprises the steps: obtaining original data needed by the three-dimensional modeling of nuclear power plant installation equipment, and carrying out the preprocessing, and constructing a multi-source heterogeneous nuclear power three-dimensional model; splitting the nuclear power three-dimensional model into three-dimensional geometric data and non-geometric data based on a data mapping technology, and correspondingly generating a neutral model file and a neutral data file; performing lightweight processing on geometric data in the neutral model file by using a preset lightweight algorithm to obtain a lightweight neutral model file; after the lightweight neutral model file and the neutral data file are associated and merged based on a data mapping technology, a lightweight nuclear power three-dimensional model is formed, rapid integration of three-dimensional models of all professions of nuclear power is facilitated, meanwhile, the size and the calculation amount of the model are reduced, the model loading efficiency and the rendering speed are improved, and the construction cost is reduced. Meanwhile, the generated neutral file does not depend on a specific software platform, and cross-system sharing and cooperation are facilitated.

Claims

1. A lightweight method for nuclear power three-dimensional model based on neutral file, characterized by: include: Obtain the raw data required for 3D modeling of nuclear power plant installation equipment, and construct a multi-source heterogeneous nuclear power 3D model after preprocessing; Based on data mapping technology, the nuclear power 3D model is split into 3D geometric data and 3D non-geometric data, and neutral model files and neutral data files are generated accordingly; Using a preset lightweight algorithm to perform lightweight processing on the geometric data in the neutral model file to obtain a lightweight neutral model file; The lightweight neutral model file and the neutral data file are associated and merged based on data mapping technology to form a lightweight nuclear power three-dimensional model.

2. The method according to claim 1, characterized in that The data mapping technology is used to split the nuclear power 3D model into 3D geometric data and 3D non-geometric data, and to generate a neutral model file and a neutral data file accordingly, including: Extract the geometric information of the nuclear power 3D model, map the geometric information to the neutral model data file through the mapping file, record the corresponding relationship between them, and generate the neutral model file; Extract the non-geometric information of the nuclear power 3D model, map the non-geometric information to the neutral data file through the mapping file, record the corresponding relationship between them, and generate the neutral data file.

3. The method according to claim 2, characterized in that The mapping file includes: Class mapping file, used to store the correspondence between the "classes" that describe the assembly relationship and the 3D geometry; Member map file, which is used to store the devices or subcomponents belonging to each class; Attribute mapping file, used to store mapping attribute parameters related to each member object; Custom mapping files are used to store mapping relationships that define personalized fields or rules.

4. The method according to claim 2, characterized in that The neutral model file adopts the STL format, including the geometric data of the model: a set of triangle faces, vertex coordinates, normal vectors and face adjacency relationships. The neutral data file adopts the JSON format, including the structural information, attribute information and non-geometric business data of the model.

5. The method according to claim 3, characterized in that The mapping file is combined with the nuclear power SSC structural system, supports the hierarchical organization of model information by system, structure and component, and supports the fusion mechanism of automatic matching and manual control.

6. The method according to claim 1, characterized in that The method of performing lightweight processing on geometric data in the neutral model file by using a preset lightweight algorithm to obtain a lightweight neutral model file includes: The triangular mesh model constructed based on geometric data uses preset lightweight parameters and error thresholds, applies a mesh simplification algorithm, and generates multiple versions of geometric model files, which are stored in lightweight neutral model files corresponding to different LOD levels.

7. A nuclear power three-dimensional model lightweight system, characterized by: include: The 3D model construction module is used to obtain the raw data required for 3D modeling of nuclear power plant installation equipment, and construct a multi-source heterogeneous nuclear power 3D model after preprocessing; A neutral file generation module is used to split the nuclear power 3D model into 3D geometric data and 3D non-geometric data based on data mapping technology, and generate a neutral model file and a neutral data file accordingly; A lightweight processing module is used to perform lightweight processing on geometric data in a neutral model file using a preset lightweight algorithm to obtain a lightweight neutral model file; The lightweight three-dimensional model generation module is used to associate and merge the lightweight neutral model file and the neutral data file based on data mapping technology to form a lightweight nuclear power three-dimensional model.

8. A computer device, characterized in that: include: A memory and a processor, wherein the memory and the processor are communicatively connected to each other, the memory stores computer instructions, and the processor executes the nuclear power three-dimensional model lightweighting method according to any one of claims 1 to 6 by executing the computer instructions.

9. A computer-readable storage medium, characterized in that The computer-readable storage medium stores computer instructions, which are used to enable a computer to execute the nuclear power three-dimensional model lightweighting method according to any one of claims 1 to 6.

10. A computer program product, characterized in that The method comprises computer instructions for causing a computer to execute the nuclear power three-dimensional model lightweighting method according to any one of claims 1 to 6.

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