The Synthetically Generation of Pattern Element Based on Eigenvector
基于特征线段综合的图案元素生成

s How to get pattern elements is a bottle neck problem all the while in the computer aided pattern design system. Firstly, this paper introduces the principle of synthetic reasoning and defines its three components:synthetic source S, synthetic constraint C, synthetic result R. Secondly, it discusses a way of the pattern element transformation and generation based on the synthetic reasoning. Thirdly, based on eigenvector, this paper present the pattern element generation model with very simple field strength function of components. Because this model is simple, intuitional and coincident with the data structure of synthetic source and result, the implementation is relatively easy and the effect is fairly good. Then some examples are presented. Finally, this paper proposes some evaluation and some suggestion about advanced research in the future. On all accounts, this method can use the visual information of acquired pattern elements, under some special requests, to produce new ones rapidly or transform them to other conformations, which will amplify greatly the resource of pattern elements and resolve forenamed problem at a certain extent.