基于变形的植物叶脉骨架的三维可视化造型研究

Research on three-dimensional visualization modeling of plant leaf venation skeleton deformation based

植物叶脉结构一般分为一级主脉、二级侧脉以及三级以上细脉,而从植物形态学上看,主脉与侧脉组成叶脉的骨架结构,本文针对叶脉骨架结构提出了基于变形植物叶脉可视化建模的一种方法,采用绘制圆锥的方式对一、二级叶脉进行可视化建模造型,通过在对圆锥曲面方程上加上或减去三角函数变形得到不同弯曲度圆锥曲面,从而模拟出不同弯曲度的一、二级叶脉,然后通过旋转和平移使侧脉沿主脉两侧生长,最终完成叶脉骨架结构的三维可视化造型。

Plants veins structure are generally divided into main vein, two lateral veins and veinlets above three, From the point of view of plant morphology, the main vein and lateral veins veins skeleton structure. This paper presents the veins skeleton structure deformation based visual modeling of plant veins one way, by drawing on a conical manner, two veins visual modeling modeling, the conical surfaces by adding or subtracting trigonometric equation to obtain different bending deformation conical surface, to simulate a different curvature and secondary veins,then through the rotation and translation along the lateral veins on both sides of the main vein growth, the final completion of the veins skeleton struc- ture modeling three-dimensional visualization .