Voronoi图在蜡印冰纹仿真中的应用  

Rendering cracks in wax printing designs using Voronoi diagram

作　　者：唐颖[1] 房宽峻[1,2] 沈雷[1] 付少海[1] 张连兵[1] 

机构地区：[1]生态纺织教育部重点实验室(江南大学),江苏无锡214122 [2]青岛大学纤维新材料与现代纺织国家重点实验室培育基地,山东青岛266071

出　　处：《纺织学报》2012年第2期125-130,共6页Journal of Textile Research

基　　金：国家自然科学基金资助项目(20474025);教育部新世纪优秀人才支持计划资助项目(NCET-04-0495);江苏省自然科学基金资助项目(BK2007021);国家科技支撑计划资助项目(2007BAE40B01)

摘　　要：在绘制数字化的蜡印图案中,为模拟手工蜡印中冰纹自然龟裂的状态,提出一种基于Voronoi图的仿真方法。首先在蜡印图案上随机确定Voronoi图的基点位置,生成标准Voronoi图;然后选取位于图案中的Voronoi线段,以Voronoi边界交点作为起点,在原始Voronoi边界的传播方向上加入Perlin噪声,生成新的Voronoi边界;最后通过数目、噪声等控制系数使仿真冰纹接近自然开裂效果,得到最终的仿真蜡印图案。结果表明,所提算法模拟出的蜡印冰纹具有较好的连贯性和网络性,符合真实蜡印图案的冰纹特征。When preparing digital wax printing designs, a simulation method based on Voronoi diagram is selected for simulating the naturally cracked patterns of handmade wax printing. Firstly, the positions of the Voronoi sites are determined randomly in digital wax printing designs; then the standard Voronoi diagram is obtained. The Voronoi boundary needs to be picked out from the wax region, taking the intersection of the Voronoi boundary as the starting point. Perlin noise is introduced in the spread direction of the original Voronoi diagram and a new Voronoi boundary is generated. Finally, the simulated cracks similar to natural ones are achieved via adjusting the coefficients such as number and noise. The experimental results show that the proposed method can imitate authentic wax crack designs with good consistency and network, that meet the crack characteristics of the real wax printing designs.

关 键 词：蜡印图案 冰纹 计算机仿真 VORONOI图 PERLIN噪声 

分 类 号：TS941.26[轻工技术与工程—服装设计与工程]