【摘要】 研究植物器官的真实感和花朵开放过程,对虚拟植物的研究和应用具有重要作用。花朵是植物最典型的器官之一,花朵建模是虚拟植物建模的重要组成部分。为了真实仿真花朵的开放动态过程,提出了一种花朵开放造型方法,采用平面变形思想构建花瓣2D网格,利用改进的圆台参数化方程和椭球方程仿真花蕊,应用L规则构建花朵,并利用控制曲线控制网格实现了花朵的开放过程。实验结果表明,改进方法生成的花朵形象逼真,可以较好地仿真花朵的动态开放过程。更多还原

【Abstract】 Visualization and simulation of plant organ is of great significances in the research and application in the filed of virtual plants.Flower is the most typical one of the plant organs,thus flower molding is an important part of the virtual plant molding.In order to simulate 3-D flower blooming,this paper proposed a new method to model flower blooming.The method generated 2-D mesh using plane deformation method,reconstructed pistils and stamens through the improved frustum cone parametric equations and ellipsoid,and modeled the whole flower using L-rules.Based on this,the paper proposed a way to control the 2-D mesh based on control curves to achieve the flower blooming.The results show that the proposed method can generate realistic flower,thereby can create good animations of flower blooming.更多还原