针对系统导航部分，设计了一种基于距离映射获取漫游路径的算法，并提出了相应的路径平滑技术。
This paper designs a algorithm to gam the roam path based on shining upon distance for the navigation part of the system, and develops a new technology for smoothing the navigation path.
计算结果表明，模型的竖向位移等值线在建筑物附近有一定的突变现象，而在距离建筑物一定的距离范围外，位移等值线又逐渐过渡为平滑曲线。
The simulation results show that stratum vertical displacement has a sudden change near the high-rise building. Away from the building in an enough distance, the displacement curve becomes flat.
计算结果表明，模型的竖向位移等值线在建筑物附近有一定的突变现象，而在距离建筑物一定的距离范围外，位移等值线又逐渐过渡为平滑曲线。
The simulation results show that stratum vertical displacement has a sudden change near the high-rise building. Away from the building in an enough distance, the displacement curve becomes flat.
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