Based On The Virtual Reality Technology Of Plant Growth Dynamic Simulation Key Technology Research

Use of virtual reality technology in simulation plants in3d space growth process is a virtual plant, with visual function. Because of the growth of plants with a long cycle, and environment, light, water and food supplies, to the growth of plants and have a vital role, if can have a system can be real simulation of plant growth, can reduce the scientific research personnel to the fields time and reduce human, material spending, to the agricultural modernization development has a great role. Therefore, the dynamic simulation of the plants grow became our top priority of precision agriculture.Plant roots of plants is an important food source, suck up moisture and nutrients to plants have very important role. Plant root is more complex, for virtual plant modeling, basically is combined with the growth of root system, quantitative analysis of soil environmental conditions on the effect of plant growth. Through the simulation of the growth of root system simulation real production environment to the influence of soil plant of digital agriculture with indispensable role.This article chooses differential L system theory to realize the dynamic growth of the continuous corn root system model is built. Virtual plant roots virtual plant research is an integral part of the study of, the plant root growth models often only stay in computer graphics level simulation of implementation, and the plant root growth and development process into consideration less.For the modeling of the leaves, this paper mainly studies the image processing technology. In order to make the virtual plant more image lifelike, leaf surface reconstruction virtual plant model is an important component. Only by establishing a good, can clearly show that the leaf surface model can have enough have a true/reduction effect. In this paper, the three parameters b-spline curve and surface modeling algorithm NRUBS realized respectively the corn the leaves of the simulation.Fruit for corn, its shape is relative to other crops organ is more complex, based on the format of the Loop subdivision virtual crops fruit modeling method, this is a kind of fruit form according to establish corresponding control structure characteristic grid, define appropriate subdivision rules generation fruit model, and expand the breakdown of the existing rules. This method can real simulation crops fruit, make the fruits of the simulated image is realistic, and to realize the fruits of corn nonsmooth characteristics of the simulation.Establish parametric virtual maize growth prototype system, based on the OpenGL graphics functions of each module function, in the Visual C++platform development, use the system to maize growth forecast and visualization simulation verified the model and related algorithm is effective and feasible.