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Real-time 3 D Plant Structure Modeling by L-System with Actual Measurement Parameters

Plant modeling is the process combining biological knowledge, mathematical formalisms and computer graphic to generate virtual plants. Recently, the most popular technique used to model plants is the Lindenmayer system or L-system. This technique presents self-similarity patterns of a tree by its 3D turtle grammar. While the resulting rendering of the traditional L-system may look like a real tree, no parameters of the modeled tree are taken into consideration. In this study, the correct parameters such as the angle between branches, the length ratio of branches and phyllotactic patterns were integrated into our customized L-system interpreter. The 3D interaction and simulation of this virtual tree were developed using java3D technology. The final 3D model can also be exported to other sophisticated 3D modeling software via the Wave-front OBJ file format. Our approach can be easily extended and applied to other 3D modeling problems requiring more faithful results.