The Visualization Of Aging Process Of Leaves Combined With Environmental Factors

With the development of computer graphics, it's becoming increasingly hot to create a model for a plant and simulate its vital movement in a dynamic way in the visual reality field. The growth of a plant is a pretty complex process, which is affected not only by it's physiological characteristics, but also by the habitat conditions like sunshine, water, temperature etc. How to implement the morphological and physiological structure of plant organs in the way of visualization has always been a challenging task in the area of computer graphics. In this paper we take a typical plant organ-leaves as the research subject, through the visual leaves'geometric configuration, texture color changes which under the influence of natural environment, thus simulate the aging process of leaves in a more accurate way.In order to show the aging process of plant leaves in a more accurate way, first, build the three-dimensional geometric model of leaves; based on the geometric model of leaves, Mass-Spring Model Algorithm is adopted in the process of simulating the geometric configuration in aging process, what's more, Markov chain model is also introduced in the simulation of the change in texture color of leaves under the different temperature and water; at last, in order to prove the accuracy of the algorithm raised in this article, a model of the growth of a phoenix tree leaf is created, during the experiments and observations, the visual system of leaves aging process was designed to simulate the growth under different situations in a intuitive and visible way. Thus, the main aspects of the research are as follows:1. Three-dimensional modeling of leaves: In addition to the traditional way of modeling, it uses the acquisition of key points and Delaunay triangulation algorithm to get a triangle gird model of leaves, thus complete the modeling of leave.2. Three-dimensional deformation of leaves: Considering the physics physiological characteristics of the plant itself and the environment factors, takes the algorithm of three-dimensional deformation based on the Mass-Spring, finally implement the change of leaves'geometric configuration during the aging process.3. Texture color changes during the aging process: In this paper in order to simulate the aging process of leaves, we use the state-transition process of Markov link. The function of state-transition process of Markov link contains two main factors: temperature and water, thus achieve the purpose of change of texture color under different conditions.4. Visual system of leaves aging process: At the end of the paper is the design and development of the visual system of leaves'aging process combined with environmental factors and the proving of the effectiveness of the method.