Flower solid modeling based on sketches  

作　　者：Zhan DING Shu-chang XU Xiu-zi YE Yin ZHANG San-yuan ZHANG 

机构地区：[1]State Key Lab of CAD ＆ CG, School of Computer Science, Zhejiang University, Hangzhou 310027, China

出　　处：《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》2008年第4期481-488,共8页浙江大学学报（英文版）A辑（应用物理与工程）

基　　金：Project supported by the Hi-Tech Research and Development Pro-gram (863) of China (Nos. 2007AA01Z311 and 2007AA04Z1A5);the Postdoctoral Science Foundation of China (No. 20070421185);the National Research Foundation for the Doctoral Program of Higher Education of China (No. 20060335114)

摘　　要：In this paper we propose a method to model flowers of solid shape. Based on (Ijiri et al., 2005)’s method, we separate individual flower modeling and inflorescence modeling procedures into structure and geometry modeling. We incorporate interactive editing gestures to allow the user to edit structure parameters freely onto structure diagram. Furthermore, we use free-hand sketching techniques to allow users to create and edit 3D geometrical elements freely and easily. The final step is to automatically merge all independent 3D geometrical elements into a single waterproof mesh. Our experiments show that this solid modeling approach is promising. Using our approach, novice users can create vivid flower models easily and freely. The generated flower model is waterproof. It can have applications in visualization, animation, gaming, and toys and decorations if printed out on 3D rapid prototyping devices.In this paper we propose a method to model flowers of solid shape. Based on （Ijiri et aL, 2005）＇s method, we separate individual flower modeling and inflorescence modeling procedures into structure and geometry modeling. We incorporate interactive editing gestures to allow the user to edit structure parameters freely onto structure diagram. Furthermore, we use free-hand sketching techniques to allow users to create and edit 3D geometrical elements freely and easily. The final step is to automatically merge all independent 3D geometrical elements into a single waterproof mesh. Our experiments show that this solid modeling approach is promising. Using our approach, novice users can create vivid flower models easily and freely. The generated flower model is waterproof. It can have applications in visualization, animation, gaming, and toys and decorations if printed out on 3D rapid prototyping devices.

关 键 词：Solid modeling Floral diagram INFLORESCENCE GESTURE Constrained Delauny triangulation （CDT） Freehand sketching 

分 类 号：TP391.7[自动化与计算机技术—计算机应用技术]