鞋楦定制中非均匀有理B样条特征曲线的自适应变形

任怀艺; 王伯雄; 刘辉; 罗秀芝

doi:10.3788/OPE.20132101.0181

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鞋楦定制中非均匀有理B样条特征曲线的自适应变形

信息科学 | 更新时间：2020-08-12

- 鞋楦定制中非均匀有理B样条特征曲线的自适应变形
- Adaptive deformation of characteristic NURBS curves for customized shoe-last
- 光学精密工程 2013年21卷第1期页码：181-188
- 作者机构：
  
  清华大学精密仪器与机械学系
- 作者简介：
- 基金信息：
  
  国家863高技术研究发展计划资助项目(No.2015AA123703)
- DOI：10.3788/OPE.20132101.0181
  中图分类号： TS943.2;TP391.7
- 收稿日期：2012-06-15，
  
  修回日期：2012-08-30，
  
  网络出版日期：2013-01-24，
  
  纸质出版日期：2013-01-15
- 稿件说明：
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任怀艺王伯雄刘辉罗秀芝. 鞋楦定制中非均匀有理B样条特征曲线的自适应变形[J]. 光学精密工程, 2013,21(1): 181-188

REN Huai-yi WANG Bo-xiong LIU Hui LUO Xiu-zhi. Adaptive deformation of characteristic NURBS curves for customized shoe-last[J]. Editorial Office of Optics and Precision Engineering, 2013,21(1): 181-188
任怀艺王伯雄刘辉罗秀芝. 鞋楦定制中非均匀有理B样条特征曲线的自适应变形[J]. 光学精密工程, 2013,21(1): 181-188 DOI： 10.3788/OPE.20132101.0181.

REN Huai-yi WANG Bo-xiong LIU Hui LUO Xiu-zhi. Adaptive deformation of characteristic NURBS curves for customized shoe-last[J]. Editorial Office of Optics and Precision Engineering, 2013,21(1): 181-188 DOI： 10.3788/OPE.20132101.0181.

摘要

为实现无实体楦基础的数字化量足制鞋，提出了基于非均匀有理B样条(NURBS)特征曲线自适应变形的个性化鞋楦定制系统，将足部NURBS特征曲线依据一定的舒适度规则变形成相应的鞋楦特征曲线来实现鞋楦定制。该系统采用切平面法获取足部的特征点、特征曲线和特征尺寸，重建出足部NURBS特征曲线。建立了足楦舒适度匹配规则，并根据变形方式及次序不同将特征曲线分为四种类型。以特征点、特征结点和特征尺寸作为约束，结合足楦舒适度规律驱动足部特征曲线自适应变形，生成相应的鞋楦特征曲线。最后，构建出鞋楦特征框架，通过特征曲线增添操作和曲面细分造型完成定制鞋楦的设计。给出了男士皮鞋鞋楦的设计实例和定制结果，定制时间在480 s内，定制的鞋楦美观大方。该系统具有实用性，且定制鞋楦的再设计利用率显著提高。

Abstract

To make customized shoes without standard shoe-lasts

a customized shoe-last system is established based on the adaptive deformation of Non-uniform Rational B Spline (NURBS) curves for foot characteristics. The system uses the deformation from foot characteristic curves to make shoe-lasts based on comfortable matching rules. First

the cutting plane method is used to acquire the characteristic information

including characteristic points

characteristic curves and characteristic sizes

following that

the characteristic curves are reconstructed in NURBS. Then

the comfortable matching rules between feet and shoe-lasts are established

and characteristic curves are divided into four different types according to different deformation ways and orders. Furthermore

the foot characteristic curves are deformed to shoe-lasts characteristic curves driven by the comfortable match rules in the constraints of the characteristic points

characteristic nodes and the characteristic sizes. Finally

it structures the shoe-lasts characteristic frame

and finishes the design of customized shoe-last through adding characteristic curves and subdividing the surface mesh of shoe-last. With this system

a mens leather shoe with comfort and beauty can be customized in less than 480 s. This system is practical

and can increase greatly the utilization of redesign for customized shoe-lasts.

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Keywords

references

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