The research of the improved 3D L- system and its application in plant modeling

Transportation simulation includes vehicles simulation and traffic environment simulation, this paper carries out the plant modeling research as the preparation of the latter. It first describes the original 3D L-system and how to implement it, then brings forward the improved modeling method of 3D L-system by specifying the growth vector and azimuth vector and applies the quaternion based computer algorithm in it, in the end by using this improved method and algorithm generates some 3D plant models of sympodia and uniaxiality.