Research of Plant Growth Model Based on the Combination of L-system and Sketch

To control plant morphology by interactive mode in the process of plant simulation, a method for plant modeling based on the combination of L-system and sketch is proposed in this paper. The user can sketch the trunk by drawing a stroke in the plant growth model, so as to determine the overall shape and growth direction of plant. Meanwhile, in order to achieve the unity of form of trunk and lateral branches, we improve the traditional L-system algorithm and let the generation process of plant model transform to recursion process, which makes the algorithm efficient and concise.