微观人群造型行为建模与模拟

Modeling and Simulation of Micro Crowd Modeling Behavior

人群造型行为是多人在行进过程中动态组合成特定含义的图形图案的行为。针对这一行为,提出了个体造型的行为模型,尤其是针对个体之间在造型行为中可能存在的碰撞以及站定后不再参与避让的特点,提出了修正的行人碰撞避让算法。在此基础上,提出了人群造型行为的模拟算法,并以文字图案造型为例,实现了三维虚拟空间中的人群造型过程的模拟。模拟结果表明:模型在群体尺度上成功完成目标图案的造型过程;在个体尺度上,行人的造型行为合理,证明了模型和算法的可行性。

Crowd modeling behavior is a behavior in which multiple people dynamically combine into graphic patterns with specific meanings in the process of advancing.Aiming at this behavior,a behavior model of individual modeling was proposed.In particular,a modified pedestrian collision avoidance algorithm was proposed in view of the possible collisions between individuals in modeling behavior and the characteristics that they no longer participate in the avoidance after standing.On this basis,a simulation algorithm of crowd modeling behavior was proposed.Taking the character pattern modeling as an example,the simulation of crowd modeling process in 3D virtual space was realized.The simulation results show that the model successfully completes the modeling process of the target pattern at the group scale,and at the individual scale,the modeling behavior of pedestrians is reasonable,which proves the feasibility of the model and algorithm.