摘要
利用一元二次方程曲线来描述弯曲型稻穗穗轴轴心线形态,连接以曲线弦线段为轴心的圆柱,构建了穗轴和枝梗轴的形态模型,通过两个共底面的圆锥体建立小穗谷粒的几何形态模型,实现了稻穗三维显示。模型具有较高的真实感效果,可控性强,可满足稻穗数字化设计的需要。
In this paper it uses unitary quadratic equation to describe the shape of axis-line curve of bending rice panicle axis, the morphological models of rice panicle-axis and branches axis are constructed by connecting the cylinders which taking curve chord-line as its axle centre, by establishing the rice grain geometric shape model through two bottom - shared cones, the 3 D visualization of rice panicle is realized. The highly controllable model has quite vivid reality effect and can satisfy the need of digital panicle design.
出处
《计算机应用与软件》
CSCD
2009年第5期96-97,161,共3页
Computer Applications and Software
基金
江西省自然科学基金自助项目(2007GZS0256)
江西省科技厅农业攻关项目(赣财教字[2006]188号)
关键词
水稻
稻穗
数字化设计
抛物线方程
数学模型
Rice Panicle Digital design Parabolic curve equation Mathematical model
