玉米生长三维显示模型研究初探

动态显示玉米的生长、发育和产量形成过程,有利栽培管理。本研究主要目的是建立一个基于生长模拟模型的可视化系统,从而反映玉米生长、发育和产量形成的实时动态。有关玉米生长、发育和产量形成的基本算法与品种、环境和生产水平密切相关,其主要来自于现有文献和研究数据。基于生长模型的逐日输出,耦合玉米种子、根、茎、叶和穗等的形态建成和生长规则,从而建立了玉米形态变化的数学模型。通过计算机图形学、Visual C＋＋和OpenGL,本文建立了基于生长模拟模型和三维动画技术的玉米可视化模型系统,其能基本反映玉米生长、发育和产量形成规律,并具有结构简单、界面友好和图像真实等优点。

Implementation of 3D visualization system for maize growth

Displaying the growth, development and yield formation of maize （Zeamays L.） is beneficial to culture management. The primary objective of this study was to develop a growth simulation model-based visualization system to reflect the time-course dynamics of growth, development and yield formation. The fundamental algorithms of maize growth, development and yield formation, which vary with the variety, environmental factors and production levels, were formulated from the existing literature and research data. Based on the daily output of the growth model, and combined with morphological formation and growth rules of corn seed, root, stem, leaf, corncob, and so on, the mathematic model for changes of morphology in corn was set up. Using computer graphics, Visual C＋＋ and OpenGL, a 3-dimensional visualization of growth, development, and yield formation was realized based on crop growth simulation model data and a 3D animation technique. The 3D system can basically reflect the rules of real corn growth, development and yield formation, and which has some characteristics such as simple structure, mutual interface, and realistic images.