An evolutionary algorithm for surface modification

Complex shapes bounded by free form surfaces are designed and modified by specifying the parameters of their mathematical descriptions. Although most graphics and design systems provide high level tools for free form shape modifications, they are not intuitive and suitable for a creative designer or a stylist. In the present paper a technique is proposed for the modification of the shape of a parametric B-spline surface through embedding a set of predefined characteristic curves. Shape modification is performed by an evolutionary algorithm. The evolutionary algorithm minimises the distance between the curve and the surface, while maintaining the global shape and smoothness of the original surface. Several experimental results are presented

A new approach to shoe last customization.

by Leng Jing.Thesis (M.Phil.)--Chinese University of Hong Kong, 2006.Includes bibliographical references (leaves 74-79).Abstracts in English and Chinese.ABSTRACT --- p.i摘要 --- p.iiiACKNOWLEDGEMENTS --- p.vTABLE OF CONTENTS --- p.viLIST OF FIGURES --- p.viiiChapter CHAPTER ONE --- INTRODUCTION --- p.1Chapter 1.1 --- Motivation --- p.1Chapter 1.2 --- Project Background --- p.4Chapter 1.3 --- Organization of the Thesis --- p.7Chapter CHAPTER TWO --- LITERATURE SURVEY --- p.8Chapter 2.1 --- History of Shoe Last Making --- p.8Chapter 2.2 --- Review of the Shoe Last Design Approach --- p.11Chapter CHAPTER THREE --- CUSTOM SHOE LAST DESIGN SYSTEM --- p.15Chapter 3.1 --- System Overview --- p.15Chapter 3.2 --- The Scanned Data and Data Alignment --- p.17Chapter 3.3 --- The Computation of Distance Map --- p.21Chapter 3.4 --- The Modification of Distance Map --- p.24Chapter 3.5 --- The Deformation --- p.30Chapter CHAPTER FOUR --- INTERACTIVE LOCAL DEFORMATIONS --- p.35Chapter 4.1 --- Local Deformations --- p.37Chapter 4.2 --- Adaptive Deformation --- p.39Chapter CHAPTER FIVE --- SYSTEM IMPLEMENTATION --- p.43Chapter 5.1 --- Add in Application to SolidWorks® --- p.43Chapter 5.2 --- The Matlab® Implementation --- p.52Chapter CHAPTER SIX --- CONCLUSIONS AND DISCUSSIONS --- p.56Chapter 6.1 --- Summary and Conclusions --- p.56Chapter 6.2 --- Recommendations for Future Research --- p.57APPENDEX A --- p.59SHOE SIZE CONVERTER --- p.59APPENDEX B --- p.60SOURCE CODE OF SHOE LAST CUSTOMIZATION SYSTEM --- p.60BIBLIOGRAPHY --- p.7

Natural and Smooth Pen-based Interaction Utilizing Multiple Pen Input Channels

高知工科大学博士(工学) 平成22年3月19日授与 (甲第176号