Abstract: Plant visualization, also known as “virtual plant”, refers to the reappearance of plants in three-dimensional space through virtual technology on computer equipment. The bending model of rice leaf in three-dimensional space of rice leaves were established based on plant visualization. The Bezier curve was used to realize the visualization of the edge curve and the midrib curve of rice leaves, according to the three-dimensional morphological characteristics of rice, and using VC++ combined with OpenGL technology. Finally, the triangular meshing model of rice leaf on the two-dimensional plane and the bending model in three-dimensional space were realized. In this model, the degree of curvature of rice leaves was related to the position of the intermediate locus of the Bezier curve.

Key words: rice leaf, Bezier curve, visualization, 3D modeling

摘要： 植物可视化（也称为“虚拟植株”），是在计算机设备上，通过虚拟技术来实现植株在三维立体空间中的再现。本研究采用VC++结合OpenGL的技术，根据水稻的三维形态特征，通过绘制Bezier曲线来实现对水稻叶片边缘曲线和叶中脉曲线的可视化，最终实现水稻叶片在二维平面上的三角网格化模型和在三维空间上的弯曲模型。在这个模型中，水稻叶片的弯曲程度与其Bezier曲线的中间控制点的位置有关。

关键词: 水稻叶片, Bezier曲线, 可视化, 三维建模