A Complex Product Model Construction Method Based on Surface Features

A surface model and complex product technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as lack of generality, transition surface cannot be automatically regenerated, and complex positioning process, etc., to achieve enhanced diversity, Easy to build and edit, smooth shape effects

Inactive Publication Date: 2014-10-08
HOHAI UNIV CHANGZHOU
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

In the past ten years, some surface feature instantiation and positioning methods have emerged, but these methods are too complex for some specific surface features or the positioning process lacks generality; implemented in such a way that after the surface feature is repositioned, the transition surface cannot be automatically regenerated

Method used

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  • A Complex Product Model Construction Method Based on Surface Features
  • A Complex Product Model Construction Method Based on Surface Features
  • A Complex Product Model Construction Method Based on Surface Features

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Embodiment Construction

[0045] In order to further disclose the technical scheme of the present invention, the present invention is further described with reference to the accompanying drawings:

[0046] like figure 1 As shown, a complex product model construction method based on surface features, first instantiate the selected surface features by assigning feature parameter values; secondly, locate the instantiated surface features on the surface model; then automatically generate transition surface features, It is smoothly connected to the attachment surface of the surface model; finally, the model is constructed by the design method based on the surface features, until the product model is constructed.

[0047] First, instantiate the selected surface feature by assigning the feature parameter values, including the following steps:

[0048] (1) Select the desired surface feature class from the feature library, and assign the feature parameter values ​​to generate a surface feature instance;

[00...

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Abstract

The invention discloses a complicated product model construction method based on a surface feature, and the method comprises the following steps: firstly, carrying out instantiation on the surface feature by setting characteristic parameter values; secondly, locating the surface feature of the instantiation at a surface model; then automatically generating a transition surface feature so that the surface feature is smoothly combined with an attachment surface; and finally establishing a surface feature model by putting up building blocks till the construction of a product model is finished. According to the method, the surface feature is effectively used as a design unit, like a regular feature model system, so that the surface feature with specific function semantics is conveniently used for establishing the feature model. The method is applied in CAD (Computer-Aided Design) model construction so that a product can have smooth appearance and stronger function; and therefore, the requirement of the user is better satisfied, the product competitiveness is efficiently promoted, and the design efficiency is improved.

Description

technical field [0001] The invention relates to a complex product model building method based on surface features, in particular to surface feature modeling, transition features and surface feature parameterization methods in feature modeling technology, and belongs to the field of computer-aided design. Background technique [0002] Feature modeling technology is relatively mature and widely used, but surface feature modeling technology is still in its infancy, and there are still many problems to be solved. Similar to conventional feature models, with features as design units, the establishment and modification methods of surface feature models are straightforward. However, due to the complexity of the surface feature itself, the instantiation of the surface feature, the positioning of the surface feature and the transition between the surface feature and the attached surface are all problems in feature modeling. [0003] Surface feature technology has attracted people's ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50
Inventor 陈正鸣何坤金蒋俊锋王波朱英徐昕
Owner HOHAI UNIV CHANGZHOU
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