Multi-category three-dimension model combination modeling method supporting aided design

A technology of three-dimensional models and modeling methods, applied in image data processing, instruments, etc., can solve problems such as inability to solve structural differences, model combination problems of large-span classes, etc.

Active Publication Date: 2015-10-28
BEIHANG UNIV
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Problems solved by technology

This method can solve the problem of cross-class combination between models with similar structures, but it cannot solve the problem of cross-class model combination with large structural differences. Therefore, this method does not fundamentally solve the problem of cross-class combination of 3D models.

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  • Multi-category three-dimension model combination modeling method supporting aided design
  • Multi-category three-dimension model combination modeling method supporting aided design
  • Multi-category three-dimension model combination modeling method supporting aided design

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Embodiment Construction

[0048] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0049] figure 1 It is a flow chart of a multi-category three-dimensional model combination modeling method supporting auxiliary design of the present invention. The method of the present invention is divided into four steps:

[0050] Step S100, functional substructure matching analysis of the reference model: the user inputs the reference model, divides the reference model into components, traverses all 3D models in the model library that are pre-divided into component levels, uses the structure context descriptor to perform substructure matching, and analyzes Functional substructure of the reference model;

[0051] Step S200, multi-category model combination recommendation matching the functional substructure of the reference model: using the parsed functional substructure of the reference model, similar category combinations are retrieved from the model library, a...

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Abstract

The invention provides a multi-category three-dimension model combination modeling method supporting aided design, comprising the following steps: (1) providing a reference model, and parsing the functional substructure of the reference model; (2) recommending multi-category model combinations matching the functional substructure of the reference model; and (3) modeling the multi-category model combinations under the guide of the structure of the reference model, and obtaining a final combination model according to the connection relationship between the parts. The method provided by the invention is simple and effective, and a large number of three-dimension models meeting the functional requirements can be obtained through a small amount of user interaction. A model category recommendation mechanism is put forward, and more models meeting both structural requirements and functional requirements can be generated. Based on prior information of connection points between models, the models can be combined into a complete model. The multi-category three-dimension model combination modeling method of the invention can be applied to three-dimension modeling, computer-aided design and other fields.

Description

technical field [0001] The invention belongs to the technical field of three-dimensional geometric modeling, and in particular relates to a multi-category three-dimensional model combination modeling method supporting auxiliary design. Background technique [0002] With the development of 3D modeling technology and the abundance of model resources, 3D model combination modeling methods have received more and more attention in recent years. Multi-category 3D model combination modeling can produce more Rich combinatorial modeling results make it an important research hotspot. However, the combination modeling of multi-category 3D models becomes a difficult problem due to the lack of direct correspondence between models of different categories. [0003] In order to solve this problem, the present invention introduces a three-dimensional model as a reference model to guide the combined modeling of multi-category three-dimensional models. The combined modeling of multi-category...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T19/00
Inventor 陈小武赵沁平苏晓玉符强周彬
Owner BEIHANG UNIV
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