Web-based three-dimensional lightweight model virtual assembly method and device thereof

A lightweight model and virtual assembly technology, applied in design optimization/simulation, special data processing applications, instruments, etc., can solve the problem of inability to define 3D lightweight model features, impose assembly constraints on geometric features, and limit the space freedom of 3D lightweight models problems such as speed, so as to avoid the effect that the virtual assembly cannot be completed

Active Publication Date: 2017-10-13
WUHAN UNIV OF TECH
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Problems solved by technology

Therefore, it is impossible to define and extract features for the 3D lightweight model, and at the same time, it is impossible to impose assembly constraints on these geometric features, which limits the spatial freedom of the 3D lightweight model, and thus cannot complete the virtual assembly of the 3D lightweight model.

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  • Web-based three-dimensional lightweight model virtual assembly method and device thereof
  • Web-based three-dimensional lightweight model virtual assembly method and device thereof
  • Web-based three-dimensional lightweight model virtual assembly method and device thereof

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Embodiment Construction

[0049] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0050] It should be noted that, in the description of the present invention, the terms "horizontal", "vertical", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientation or positional relationship indicated by "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, and It is not to indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, or operate in a particular orientation, and thus should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be constru...

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Abstract

The invention discloses a Web-based three-dimensional lightweight model virtual assembly method. The Web-based three-dimensional lightweight model virtual assembly method comprises the following steps: expressing assembly information in a formalized manner; defining an assembly restraining type and geometric feature pairs, and representing geometric features of a three-dimensional lightweight model and establishing a simultaneous parameter equation set through a parameter equation which comprises vector quantity information according to defined assembly restraining type and geometric feature pairs; assembly restraining solving: solving the parameter equation set to meet an assembly restraining requirement according to the geometric feature pairs corresponding to the different assembly restraining types; and model pose transformation: carrying out pose transformation on the three-dimensional lightweight model through a homogeneous transform matrix, and enabling the three-dimensional lightweight model to move to a specific location of a target model to finish virtual assembly. By the Web-based three-dimensional lightweight model virtual assembly method and the method thereof, virtual assembly of the three-dimensional lightweight model in a Web environment is realized.

Description

technical field [0001] The invention relates to the technical field of computer graphics, in particular to a web-based three-dimensional lightweight model virtual assembly method and device thereof. Background technique [0002] With the continuous development of CAD technology and digital technology, virtual assembly has gradually become an indispensable function in CAD system. Virtual assembly technology can not only help designers to visually verify whether the assembly design and operation are correct, find relevant problems and modify them in time, but also help designers formulate feasible assembly procedures through visual display of the assembly process, which greatly shortens the product development cycle. Improve the market competitiveness of products. Most of the existing virtual assembly technologies support designers to use various devices (mouse, data gloves, force feedback devices, etc.) to impose assembly constraints on the geometric features (points, lines,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/20G06F2113/20
Inventor 盛步云赵飞宇张成雷殷希彦舒瑶邓璘黄培德
Owner WUHAN UNIV OF TECH
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